Mainframe developer jobs near me - 4,109 jobs

A technology company in San Francisco is seeking a Software Developer to craft, develop, test, and maintain systems that improve customer experience. Ideal candidates should have a Bachelor's degree in computer science, at least 2 years of experience, and proficiency in multiple programming languages, including Java and C++. This role offers an opportunity to work in a collaborative environment with a focus on quality and innovation. #J-18808-Ljbffr

About Vercel: Vercel gives developers the tools and cloud infrastructure to build, scale, and secure a faster, more personalized web. As the team behind v0, Next.js, and AI SDK, Vercel helps customers like Ramp, Supreme, PayPal, and Under Armour build for the AI-native web. Our mission is to enable the world to ship the best products. That starts with creating a place where everyone can do their best work. Whether you're building on our platform, supporting our customers, or shaping our story: You can just ship things. About the Role: We are seeking a Software Engineer specializing in Account Lifecycle and Access Management (IAM). In this role, you will play a pivotal role in designing, building, and maintaining scalable, high-performance systems. Leveraging JavaScript/TypeScript, Node.js, SQL and NoSQL cloud-native databases, and AWS, you will develop innovative solutions for user, group, and membership management while ensuring the highest levels of security and reliability. This role is ideal for a problem-solver who thrives in a collaborative, fast-paced environment and is excited by the opportunity to tackle complex challenges, scale distributed systems, and shape the future of IAM solutions on a robust AWS infrastructure. If you're based within a pre-determined commuting distance of one of our offices (SF, NY, London, or Berlin), the role includes in-office anchor days on Monday, Tuesday, and Friday. If you're located beyond that distance, the role is fully remote. For location-specific details, please connect with our recruiting team. What You Will Do: Enable us to deliver secure, reliable, and scalable services that exceed industry standards and customer expectations. Collaborate with cross-functional teams to deliver large-scale projects with cross-team dependencies. Collaborate with peer teams to deliver solutions that meet industry standards and customer expectations. Maintain and operate services at high scale, participating in scheduled on-call rotations to ensure reliability. Develop and maintain enterprise-grade IAM solutions, focusing on user, group, and membership management. Implement identity synchronization and lifecycle management solutions using SCIM and other relevant standards. Work with Infrastructure as Code (Terraform, AWS CloudFormation, Kubernetes, etc.) to deliver scalable, high-availability applications. Design and implement robust access control models using OAuth, OpenID Connect (OIDC), SAML 2.0, and other protocols. Build and maintain high-quality enterprise software using TypeScript, REST APIs, and JSON. About You: 3+ years of experience with IAM architectures and implementing cloud computing solutions (AWS preferred). Proficiency in TypeScript/JavaScript, React, and Node.js. Strong knowledge of security architecture, LDAP, Active Directory, SAML, SSO, OAuth2, OpenID Connect and web protocols like XML, SOAP, JSON, and REST. Familiarity with access control models such as RBAC, ABAC and ReBAC. Enthusiasm to work with and learn more about Identity Protocols like OAuth2, OIDC, and SAML. Experience with SQL. Hands‑on experience implementing identity lifecycle management solutions using SCIM. Practical experience developing and improving applications written in Node.js. Exhibit excellent problem‑solving abilities and effective communication skills, especially when collaborating with diverse teams. Benefits: Competitive compensation package, including equity. Inclusive Healthcare Package. Learn and Grow - we provide mentorship and send you to events that help you build your network and skills. Flexible Time Off. We will provide you the gear you need to do your role, and a WFH budget for you to outfit your space as needed. The San Francisco, CA base pay range for this role is $196,000-$294,000. This salary range is an estimate. Actual salary will be based on job related skills, experience and location. Pay ranges outside San Francisco may be adjusted based on employee location. The total compensation package also includes benefits and equity-based compensation. Your recruiter can share more about the specific pay range for your location during the hiring process. Vercel is committed to fostering and empowering an inclusive community within our organization. We do not discriminate on the basis of race, religion, color, gender expression or identity, sexual orientation, national origin, citizenship, age, marital status, veteran status, disability status, or any other characteristic protected by law. Vercel encourages everyone to apply for our available positions, even if they don't necessarily check every box on the job description. #J-18808-Ljbffr

About Sei Sei Labs builds open sourced technology for the high-performance Sei Blockchain, the first parallelized EVM Layer 1 blockchain designed to scale with the industry. The unique optimizations built into Sei enable Web3 applications to reach Web2 level scale and performance, driving the mass adoption of digital assets. Our teams are comprised of former Google, Goldman Sachs, Robinhood, Nvidia, and Databricks veterans dedicated to onboarding the next billion users onto a vibrant ecosystem of applications. Sei Labs has raised over $30M from top investors including Jump Crypto, Multicoin Capital, Coinbase Ventures, Distributed Global, Hudson River Trading, and Flow Traders. We are a globally distributed team with a fully remote workforce. Check out our website and docs for more details. Protocol Engineering at Sei Sei Labs is looking for a Protocol Engineer to lead the development of core components of the Sei Blockchain. You'll work at the forefront of blockchain infrastructure, designing and optimizing the foundational layers of a high-performance, scalable decentralized network. You'll collaborate closely with our engineering team and ecosystem partners, constantly innovating to push the boundaries of blockchain technology. If you're passionate about low-level systems design, performance optimization, and shaping the future of decentralized networks, this is a rare opportunity to make a lasting impact in Web3. Responsibilities Write code to build the core sei blockchain (consensus, state management, etc.) Proactively identify and drive optimizations and improvements to the product. Collaborate with our frontend team to fine tune our REST API to support our customers. Take ownership over your work and the work of the team. Qualifications 5+ years of infrastructure engineering experience. Proven results in building or scaling Layer 1 blockchains performance. A proven tech lead with experience planning and leading large projects with long-term impact on a single system or team. Strong technical grasp and excellent judgment on task prioritizations. Able to tackle complex engineering problems that deliver results. History of creating and applying new processes and tooling to increase engineering efficiency. #J-18808-Ljbffr

About Owner is the AI growth system for local restaurants. Owner improves SEO, marketing, and online ordering to grow first-party orders. Unlike other companies that force small business owners to master their software to drive sales, Owner gives them a proven system run by experts. Owner is like having an army of engineers and marketers on your side, just like the big chains. Our vision We're starting by helping independent restaurants succeed online. But it's not just restaurants that need our help. Most local businesses are struggling with these same problems. Huge technology corporations are taking their customers, bleeding their profits, and making it hard for them to survive. Once we nail the solution for restaurants - we'll scale it into every other local business type. In the future we envision, tens of millions of local business owners will use our technology to succeed in the digital age. Read our Series C memo here → Our traction Since 2020, we\'ve generated tens of millions in revenue and processed over half a billion dollars of online orders. 1 in 5 Americans have used an Owner.com website. More importantly, we've helped over 20,000 restaurant owners, and saved them nearly $200 million in fees. Our team Our team is now in the low hundreds. We've got top talent from the most successful companies in SMB software, including: Shopify, HubSpot, DoorDash, ServiceTitan, Rappi, Faire and Stripe. We'll be scaling even faster in 2026 to keep pace with our customer growth. Where we work Owner is a remote-first, global company headquartered in San Francisco, with a sales hub in Toronto. For a few of our roles we prioritize in-person collaboration at one of our office locations. Most of our teammates are distributed throughout the globe. Please review the role description and discuss with your recruiter for more details on location! Why we're looking for you We are looking for a mission-driven engineer who is passionate about their craft and committed to building incredible products for our customers. This role is 100% remote and can be based anywhere in the United States or Canada. For San Francisco-based candidates: we have a new HQ in the Presidio for optional in-person collaboration opportunities! Our Tech Stack Frontend: React, Next.js, Vue Backend: Node.js, Mongo Typescript everywhere The impact you will have Build new products and features 0 to 1 Take ownership of projects from conception all the way to shipping Deliver value to our end users across our entire system Shape our product direction by talking to users and collaborating with other teammates in feature brainstorms/roadmap planning Help us build a great team - interview candidates, refer great engineers, etc. What we're looking for 3+ years of experience building applications Typescript experience Experience scaling with frontend stack (React, Next.js, etc.) and/or our backend stack (Nodejs, Mongo, AWS) Experience at product-focused startup/scale-up or technology company High degree of cross-functional collaboration and leadership. Product managers, designers and business leaders from past roles would speak positively and highly of you Strong sense of ownership, excellent communication, and a proactive mindset Pay and benefits The estimated starting base salary range for this role is $160K-190K depending on level, location and experience, plus a generous pre-IPO equity package Other benefits include comprehensive health coverage, work from anywhere (remote-first workplace), unlimited PTO - plus extra fun perks! Notice - Employment Scams Communication from our team regarding job opportunities will only be made by an Owner team member with ************* email address. We do not conduct interviews over email or chat platforms, and we will never ask you to provide personal or financial information such as your mailing address, social security number, credit card numbers or banking information. If you believe you are being contacted by scammer, please mark the communication as "phishing" or “spam” and do not respond. #J-18808-Ljbffr

Citizant is a leading provider of professional IT services to the U.S. government. We seek to address some of our country's most pressing challenges in the areas of Agile application development, Enterprise Data Management, Enterprise Architecture, and Program Management support services - focusing on the U.S. Departments of Homeland Security and Treasury. We strive to hire only ethical, talented, passionate, and committed "A Players" who already align with the company's core values: Drive, Excellence, Reputation, Responsibility, and a Better Future. No matter how large we grow, Citizant will retain its collaborative, supportive, small-company culture, where successful team effort to address external and internal customer challenges is valued above all individual contributions. Job Description Overview: We are seeking a highly skilled and experienced Systems Software Developer, SME with a proven track record in developing, maintaining, and supporting advanced software systems for an upcoming opportunity. Your role will entail developing and implementing a fully integrated systems infrastructure, facilitating Continuous Integration/Continuous Delivery (CI/CD) processes, and performing technical integration activities to minimize program critical risk exposure. The ideal candidate will bring a wealth of knowledge in various IRS tax processing systems, including but not limited to submission processing systems, corporate data systems, compliance and case processing systems, and modernized systems. You will work closely within an Integrated Project Team (IPT) that includes IRS staff and other contractors, adopting the Iterative Enterprise Life Cycle (ELC) development path and methodology to support the IPT in various capacities. Responsibilities: Design, develop and maintain complex software systems, that ensuring scalability, reliability, and performance. Develop clean, efficient, and maintainable code and configurations in accordance with best practices and coding standards. Collaborate with cross-functional teams to implement systems that meet all functional and security requirements and align with business objectives. Ensures the AD production baseline is maintained with accurate software configuration management across multiple releases, ensuring lifecycle environments are ready for use. Develops and implements a fully integrated systems infrastructure, complete with related management processes. Actively supports Continuous Integration/Continuous Delivery (CI/CD) initiatives, ensuring seamless integration from end-to-end in the software development and deployment process. This includes continuous compilation, testing, and delivery of source code to test environments for immediate error detection. Performs upgrading configurations, delivery automation, and backlog grooming sessions. Minimizes program critical risk exposure and ensures that technical solutions are safe, secure, extensible, and scalable. Establishes and documents standard operating procedures for both technical integration and broader project or program activities. Qualifications 10 years of professional experience in software/system design, development, and maintenance with a strong focus on systems software. Demonstrated experience in developing software solutions using Java, including Java EE/SE, JSP, JSF, and Hibernate, showcasing the ability to address complex development challenges. Proven understanding of the ability to design, develop, and integrate web services using service-oriented architecture (SOA) principles, reflecting a deep understanding of distributed systems architecture. Experience with Oracle 10g/11g environments and Oracle Real Application Clusters, as well as implementing middleware rules engines such as Drools, demonstrating proficiency in database and middleware technologies. Expertise in implementing continuous integration and deployment processes with tools such as Jenkins, GitLab CI/CD pipeline, and automated testing techniques, demonstrating a commitment to modern development practices. Extensive experience working in Agile/Scrum development environments, indicating adaptability, effective teamwork, and a commitment to iterative development and continuous improvement. Proven experience with cloud-based development and deployment and API containerization technologies like Docker and OpenShift, demonstrating knowledge of modern infrastructure and deployment methodologies. Experience in implementing cyber security policies, procedures, and best practices, including understanding the Federal Information Security Management Act (FISMA), to ensure secure software development practices. Preferred Qualifications: Experience with Databases, including Oracle 10g/11g environments and Oracle Real Application Clusters, as well as implementing middleware rules engines such as Drools, demonstrating proficiency in both database and middleware technologies. Proven experience with cloud-based development and deployment, and API containerization technologies like Docker and OpenShift, demonstrating knowledge of modern infrastructure and deployment methodologies. Education: A Bachelor's or Master's degree in Computer Science, Information Technology, Engineering, or a related field is highly recommended. Clearance Requirement: Must be a U.S. citizen Active Public Trust/MBI or have the ability to obtain one. Salary Range: The expected annual pay range for this position is up to $130,000. The exact pay rate will vary based on skills, experience, and location. Citizant offers a competitive benefits package, including: Medical, dental, and vision insurance 401(k) Generous PTO Company-paid life and disability insurance Flexible Spending Accounts (FSA) Employee Assistance Program (EAP) Additional Information Citizant strives to be an employer of choice in the Washington metropolitan area. Citizant associates accept challenging and rewarding work and in return receive excellent compensation and benefits, as well as the opportunity for personal and professional development. Citizant is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, pregnancy, sexual orientation, gender identity, national origin, age, protected veteran status, or disability status.

Greptile is an AI code reviewer that catches bugs and anti-patterns in pull requests with complete context of the codebase. Hundreds of top software companies use Greptile to merge PRs faster and prevent bugs. Greptile reviews over 200M lines of code every month. Our customers across our cloud and self-hosted products range from YC startups to big tech companies and even teams outside tech, in finance, healthcare, and defense. We recently raised our Series A, securing $25M in funding. This round is led by Benchmark with Eric Vishria joining our board. Responsibilities (in order of how much time you'll likely spend on each) Solve some of our hardest and most interesting problems, including LLM memory, multi-language codebase indexing, semantic search for large codebases, and much more. Design, implement, test, and deploy full features Get user feedback to iterate the features Qualifications B.S. Computer Science or equivalent degree, undergraduate or higher 1+ years of software or DevOps engineering experience Experience with JavaScript/TypeScript You will like this role if: You want to work on a product that thousands of developers rely on The chaos of high growth and things breaking is exciting to you You like being in an office every day around other smart people who are excited about what they're building You love solving very hard problems. You specifically prefer working in-person over working remote #J-18808-Ljbffr

We're building the creative layer for modern communication. Every month, over a billion people make presentations - but the tools they use to make them haven't evolved in decades. We're changing that, using AI to disrupt a massive market. 📈 Millions of people rely on Gamma to create, teach, and persuade, creating more than 1 million gammas every day. 💻 We see Gamma as the next great workplace tool, combining viral B2C love with a massive B2B opportunity. We believe AI can be a true creative partner: one that understands context, clarity, and taste. 💸 We've reached a $2.1B valuation, crossed $100M in annual recurring revenue, and have been profitable since 2023. 💙 We're an imaginative, passionate team who takes our work seriously, but not ourselves. Our culture is warm, a little quirky, and fueled by curiosity. About the role You'll protect Gamma's platform, infrastructure, and data as we scale to serve hundreds of millions of users. This means building security tooling and automation, partnering with engineering teams to bake security into everything we ship, and helping shape our security culture. You'll work across the entire organization to identify and mitigate risks while keeping our development velocity high. This role combines hands‑on security engineering with strategic influence. You'll write code to solve security problems, conduct architecture reviews, lead vulnerability management, and drive security initiatives for compliance frameworks like SOC 2 and ISO 27001. You'll collaborate closely with engineering, product, and compliance teams to ensure security is foundational, not an afterthought. Our team has a strong in‑office culture and works in person 4-5 days per week in San Francisco. We love working together to stay creative and connected, with flexibility to work from home when focus matters most. What you'll do Design and implement security controls across Gamma's AWS infrastructure and application layer Build security tooling and automation to detect, prevent, and respond to threats at scale Conduct security reviews of architecture designs, code, and infrastructure changes Lead vulnerability management programs, coordinate bug bounty responses, and prioritize remediation Develop and maintain security monitoring, alerting, and incident response capabilities Partner with engineering teams to implement secure coding practices and conduct threat modeling sessions What you'll bring 5+ years of software engineering experience with at least 2-3 years focused on security engineering or application security Strong hands‑on experience securing AWS environments (IAM, VPC, security groups, CloudTrail, GuardDuty) Proficiency in at least one programming language (Python, TypeScript/Node.js, Go preferred) for building security tools Deep understanding of web application security (OWASP Top 10, XSS, CSRF, injection attacks, authentication/authorization flaws) Experience implementing security controls in CI/CD pipelines and infrastructure‑as‑code (Terraform, CloudFormation) Strong communication skills and experience working collaboratively with product engineering teams Experience with security information and event management (SIEM) tools and log analysis (Nice to have) Background in penetration testing, red teaming, or offensive security (Nice to have) AWS security certifications (Security Specialty, Certified Security Engineer) (Nice to have) Experience at a high‑growth SaaS startup navigating rapid scaling and compliance needs (Nice to have)> Compensation range Final offer amounts are determined by multiple factors, including but not limited to experience and expertise in the requirements listed above. If you're interested in this role but you don't meet every requirement, we encourage you to apply anyway! We're always excited about meeting great people. We're building on a full Typescript stack centered around some of the most modern and popular technologies. We use our own custom, open‑source AI prompting framework, AIJSX. We have a lot of custom tools built in-house, but also new ones like Vercel AI SDK. Our tiny team operates at massive scale: 1 M+ 70 M users around the world 6 M+ AI images generated daily 1 trillion LLM tokens processed per month Life at Gamma You get energy from small teams doing big things. You love when design, code, and storytelling overlap. You default to action, even when the answer isn't clear yet. You value details, but know when to ship and move on. You bring both the spreadsheets and the sparkle, equal parts workhorse and unicorn. You believe AI should amplify creativity, not replace it. You know kindness and intensity are not opposites. You like working with people who care deeply: about their craft, their teammates, and the users on the other side of the screen. Who we are Gamma is full of imaginative, passionate people who take their work seriously but not themselves. The culture is warm, a little quirky, and fueled by curiosity. It's the kind of place where you'll debate a pixel on Monday, laugh over someone's keyboard setup on Tuesday, and ship something remarkable by Friday. We care about craft, move with intention, and don't mind getting a little scrappy. It's fast, creative, and occasionally chaotic - but that's what makes it interesting. Here's a bit about what it's like to work here, from people on the inside: “quirky, inspiring, fun, a little wild in the best way” “You can have an idea and just run with it.” “Everyone's talented and humble - the mix keeps you sharp.” “We ship cool stuff, learn a ton, and laugh a lot doing it.” Meet the team We're a team of dreamers and doers building in beautiful San Francisco 🌉 We're kabbadi enthusiasts, pickleballers, dog herders, woodworkers, keyboard nerds, potters, and more - and we can't wait to meet you! #J-18808-Ljbffr

🚀 WorkOS builds tools and services for developers to help them implement authentication, identity, authorization, and overall enterprise readiness. We're a fully distributed team with employees across North American time zones. We're well‑funded, having raised $100m in funding from top investors including Greenoaks Capital, Lachy Groom, and Lightspeed Ventures. Our fast‑growing customer base includes rapidly growing SaaS companies like OpenAI, Cursor, Perplexity, Vercel, Plaid, and hundreds of others. About the role 💭 We care deeply about world‑class design, accessibility, and interactivity (we're the people that build Radix UI!). Successful candidates will love staying up-to-date on the latest in the React ecosystem and UI trends, talking directly with users to build empathy for their needs, and building crafted, intuitive interfaces that bring joy to developers. Responsibilities ✔️ Help set the tone and raise the bar for UI and design quality across our surfaces Pair with product teams to build intuitive interfaces for upcoming launches Build and document component patterns that allow product engineers to ship their features with excellent UX Own and improve technical fundamentals in our frontend architecture, data loading and syncing, and the services that the frontend relies on Help inform the UI roadmap to continually improve experience and developer joy Provide expert insight on frontend technical decision making across the company Develop empathy and understanding with our customers so you can build the right thing Structure work around customer impact first and help move the company forward Know when to step in and out of a leadership role and share the spotlight: you lead the charge while elevating others Speak with customers regularly to get feedback on new product development Help recruit and assess future engineering team members Help represent the team publicly through blog posts, public docs, public design system resources Help contribute to new Radix projects and maintenance Qualifications 🌟 5+ years of industry software development experience with interactive apps Has built, shipped, and supported a feature rich dashboard or app Experience owning projects and driving work based on customer impact Demonstrated high level of design/UX taste Understanding common a11y patterns, ability to implement and educate others Intellectually curious, independently driven, and passionate about great products Expert‑level skill in React, CSS, TypeScript Familiarity with backend fundamentals and database concepts Experience working on small teams in fast‑paced environments Experience building and shipping web applications end‑to‑end Excellent prioritization and organization skills A growth mindset, high emotional intelligence, and strong communication skills Bonus: Experienced in B2B SaaS, developer tools, or a related industry The annual US base salary falls within the range of $175,000 to $250,000. This range does not encompass the full spectrum of benefits such as equity, health insurance, vacation time, and paid parental leave. This salary range covers multiple levels of engineering roles and final compensation will be determined considering various factors, including experience, skills, and qualifications. For candidates outside the US, including Canada, compensation is adjusted based on local market benchmarks. Benefits (US Only) 💖 At WorkOS, we offer resources that emphasize personal and familial well‑being. We offer healthcare coverage for you and your family, including medical, dental, and vision. We offer parental leave, paid‑time off and fully remote working arrangements. Benefits include: Competitive pay Substantial equity grants Healthcare insurance (Medical, Dental and Vision) for you and your family 401k matching Wellness and fitness monthly allowances PTO + paid holidays + unlimited sick leave Autonomy and flexibility with remote work Please inquire directly with our recruiting team for benefits available to those working outside the US. Equal Opportunity Employer WorkOS is an equal opportunity employer, committed to diversity and inclusiveness. We will consider all qualified applicants without regard to race, color, nationality, gender, gender identity or expression, sexual orientation, religion, disability or age. #J-18808-Ljbffr

Who is Recruiting from Scratch:Recruiting from Scratch is a premier talent firm that focuses on placing the best product managers, software, and hardware talent at innovative companies. Our team is 100% remote and we work with teams across the United States to help them hire.About the client: Title of Role: Full-Stack Software Engineer (AI-Fintech) Location: San Francisco, CA Company Stage of Funding: Seed (Backed by Y Combinator, Peterson Ventures, and others) Office Type: Onsite (5 Days a Week) Salary: $150,000 - $250,000 + Equity Company Description We are working with an innovative, AI-native fintech startup that's redefining how banks serve small businesses. Founded by Stanford alumni with deep expertise in banking and machine learning, this company is tackling the $150B+ business lending space by replacing legacy systems with cutting-edge AI infrastructure. Their AI platform helps banks offer funding to small businesses more efficiently - with 90% less manual effort and dramatically higher conversion rates. Backed by top-tier investors including Y Combinator, Peterson Ventures, and Clocktower Technology Ventures, this company is on a mission to unlock affordable funding for the 30M+ small businesses across the U.S. The team operates with intense velocity and ownership, directly partnering with financial institutions to drive real impact. What You Will Do Build end-to-end features in a full-stack capacity, with an emphasis on frontend excellence using React, TypeScript, and Next.js Work directly with users, including bank executives and loan officers, to iterate quickly on high-impact features Develop internal and customer-facing AI workflows, integrating NLP, prompt engineering, and document processing Collaborate cross-functionally with the founding team to shape product direction and company strategy Deliver scalable, production-quality code with speed and precision in a fast-paced startup environment Ideal Candidate Background 0-15 years of experience in full-stack or frontend-leaning software engineering Demonstrated success building complete products or systems - whether through startup experience, open-source contributions, or impactful side projects Previous experience at early-stage startups (e.g., YC companies, founding engineer roles) or as a technical founder Strong frontend skills (React, TypeScript, Next.js) with solid backend experience (Python, Postgres, AWS) Built systems related to workflow automation, document processing, or fintech platforms Experience working closely with real users to build solutions that solve real problems Preferred Exposure to AI/ML tools and techniques, especially prompt engineering or conversational AI Entrepreneurial mindset: side projects, startup ventures, or hackathon wins Education from top CS programs (e.g., Stanford, MIT, Georgia Tech) is a plus for junior candidates Deep empathy for users and excitement about customer-facing product development Competitive spirit with a proven track record of excellence in any domain Compensation and Benefits Competitive salary: $150K-$250K based on experience Significant early-stage equity in a high-growth company Onsite role in a vibrant San Francisco office, working closely with a top-tier founding team Mission-driven work that directly impacts millions of small business owners Opportunity to shape the product and culture at one of the most exciting startups in AI fintech #J-18808-Ljbffr

SWE - Backend (Contract) Labelbox • Remote (UnitedStates preferred) Shape the data that powers frontier AI Quick facts Engagement - Hourly, at‑will contractor Schedule - Fully remote & asynchronous (min.15hrs/week) Pay Range (US) - $25-$100 per hour Start Date - Rolling - staffed as projects launch Pay Range - $90 - $120 an hour What you'll do Review and evaluate AI-generated backend code (e.g., Node.js, Python, Java, or Go) for correctness, efficiency, scalability, and clarity Write high‑quality backend solutions to server‑side and API development problems across varying difficulty levels Create clear, developer‑friendly explanations for architectural decisions, code logic, and problem‑solving strategies Identify and flag edge cases or ambiguities in problem statements or AI responses You're a great fit if Fluent in English, with strong written communication skills and the ability to clearly explain backend coding concepts Expertise in backend development: Deep familiarity with server‑side languages and frameworks (e.g., Node.js, Python, Java, Go), RESTful APIs, databases, and asynchronous programming 3-5 years of experience with backend frameworks, tools, or domains (e.g., Express, Django, Spring Boot, microservices, cloud platforms) is a plus Bachelor's degree (or pursuing one) in Computer Science or a related field. Master's or PhD preferred, but not required. Bonus: Experience with data labeling, RLHF, or other AI training projects About the role Flexible workload - work from anywhere, on your own schedule High impact - your craft directly improves models used by top AI labs & Fortune500 teams Clear ownership - know exactly what success looks like and have autonomy to deliver Growth potential - consistent high performers spearhead new programs and mentor incoming SMEs Interview process Complete a screening with Zara, our AI interviewer in English, to learn more about your background and experience. Domain‑specific Zara interview to assess your backend expertise, including distributed systems, microservices, and backend frameworks. About Labelbox Labelbox builds the data engine that accelerates breakthrough AI. Our platform, expert services, and marketplace let teams iterate on data as nimbly as they iterate on code, enabling safer, smarter models in production. We're backed by SoftBank, AndreessenHorowitz, BCapital, GradientVentures, DatabricksVentures, and KleinerPerkins, and trusted by leading research labs and enterprises worldwide. Ready to Apply? Click “Apply” above, and take one or more domain specific assessments. We review candidates on a rolling basis and will contact you if your background matches an active project. #J-18808-Ljbffr

Our client is seeking a SDET - Playwright to join their team! This position is located in Columbus, Ohio. Develop, maintain, and execute automated tests using Playwright (TypeScript/JavaScript) Build reusable test libraries and utilities, including authentication, pagination, idempotency, rate limiting, and error handling Define and execute test strategies across unit, integration, contract, and end-to-end test layers Create robust negative, edge-case, and resilience tests Apply mocking strategies where appropriate Manage test data and environments, including fixtures, seeding, and synthetic data, to ensure deterministic and reliable test runs Integrate automated test suites into CI/CD pipelines (GitHub Actions, Azure DevOps), ensuring fast, stable, and gated deployments Participate in design and code reviews, advocating for testability, automation best practices, and overall quality Document test frameworks, patterns, and runbooks; clearly communicate testing outcomes and recommendations to engineering teams Collaborate cross-functionally with QA, engineering, and product teams to support successful delivery Desired Skills/Experience: 3+ years of experience as an SDET or QA Automation Engineer with a strong focus on Playwright Hands-on experience with Playwright using TypeScript/JavaScript, or similar automation frameworks Experience testing POS systems or complex transactional platforms is preferred Proven experience configuring CI/CD pipelines, test reporting, and gating on failures or coverage thresholds Familiarity with mocking frameworks and test data management strategies Strong debugging skills across logs, traces, and network traffic; comfort using CLI tools such as curl Excellent written and verbal communication skills with a collaborative, team-first mindset Benefits: Medical, Dental, & Vision Insurance Plans Employee-Owned Profit Sharing (ESOP) 401K offered The approximate pay range for this position starting at $150,000. Please note that the pay range provided is a good faith estimate. Final compensation may vary based on factors including but not limited to background, knowledge, skills, and location. We comply with local wage minimums.

At Sift, we're redefining how modern machines are built, tested, and operated. Our platform gives engineers real-time observability over high-frequency telemetry-eliminating bottlenecks and enabling faster, more reliable development. Sift was born from our work at SpaceX on Dragon, Falcon, Starlink, and Starship-where scaling telemetry, debugging flight systems, and ensuring mission reliability demanded new infrastructure. Founded by a team from SpaceX, Google, and Palantir, Sift is built for mission-critical systems where precision and scalability are non-negotiable. As an early engineer at Sift, you won't just write code-you'll help define the architecture, shape the product, and influence the culture of a company focused on solving real engineering problems. If you're looking for complex technical challenges and the opportunity to build foundational systems supporting complex machines from the ground up, we want to hear from you. In This Role, You'll: Build and maintain full stack features across our web application and data processing backend for complex telemetry data Create intuitive user interfaces for data exploration while optimizing for large real-time datasets Implement efficient APIs and data access patterns for real-time data streaming Collaborate with data platform and frontend teams on service design and implementation Write clean, maintainable code and participate in technical design discussions The Skillset You'll Bring: 3+ years of professional experience in full-stack software development Experience building production applications with technologies like React, NextJS, TypeScript, Go, Rust, and Python Familiarity with relational and non-relational databases, e.g. PostgreSQL, Druid, Pinot, Timescale, or similar Strong problem-solving skills and attention to detail Bonus Points: Experience with technical visualization tools (WebGL, D3.js, Apache ECharts) and time-series data Knowledge of WebAssembly and browser-based computation Background in scientific computing or technical data visualization Experience building tools for technical users (dashboards, data-editing environments) Built and launched side projects with consistent usage traffic Engineering At Sift: You'll have the opportunity to help evolve and scale our platform because we're still in the early stages of building the product. Relevant technologies include: Web frontend & backend: ECharts, Go, gRPC, PostgreSQL, Protobuf, Radix, React, Redux, and TypeScript Data: Arrow, DataFusion, Flink, Parquet, and Rust Infrastructure: Argo CD, AWS, Docker, GitHub Actions, Grafana, Kubernetes, Kustomize, Linux, Prometheus, and Terragrunt Location: The Sift team is based in El Segundo, CA, and we collaborate in person twice a week-Mondays and Thursdays. We work closely with LA's leading hardware companies, from autonomous vehicle manufacturers to spacecraft builders. Proximity matters for site visits and deep collaboration, so we prefer candidates local to Los Angeles. We are open to relocation and for exceptional talent we're open to remote work from the San Francisco Bay Area. Salary range: $150,000 - $200,000 per year. Plus equity and benefits. Eligibility: US Person Required: Must be a U.S. Citizen or Green Card Holder due to ITAR (International Traffic in Arms Regulations) / EAR (Export Administration Regulations) compliance requirements. #J-18808-Ljbffr

A leading AI research company is seeking a Security Software Engineer to join their Infrastructure Security team. This role involves architecting and implementing security services to protect critical systems. Ideal candidates should have strong engineering skills in languages like Python or Go, experience with security infrastructure, and knowledge of cloud platforms. Compensation ranges from $292.5K to $405K with equity options. #J-18808-Ljbffr

Why work at Tilda? Create a product which will redefine medical innovation: Tilda is a fully-integrated clinical trial network. We help pharma innovators leverage our unprecedented data insights, to better execute their clinical trial programs. Thus, we have the chance to institute a meaningful impact on millions of lives. You can help us realize that goal. Work with some of the best engineers in the world: We are a team of repeat founders, who have built companies in cloud infrastructure, mobile security and life sciences. Our small team of founding engineers are passion driven, and have a long history of achievement. Tackle our most interesting and impactful problems: Our team is still small, and people wear many hats. You'd jump between product, marketing, internal tools, process - participating in every phase from inception to implementation. Absolutely no boredom. Join us at a magical time: We've hit revenue growth and product-market fit, which gives us a huge green field to work with. You'd join at the perfect time to shape what we build and how we grow. About this Role So, what will you do as a Software Developer? You will work on full-stack application engineering relevant to various clinical workflows Build automation tools to enable streamlined workflows across trial execution Work on data ETL pipelines, and help improve our AI engine to better organize and process our clinical data You will interact with our product and clinical team to design and implement features which could help improve above mentioned workflows You would be successful as a candidate if... You have good understanding of foundational computer science concepts like design patterns, data structures, web architecture and algorithms You are proficient with at-least one web-focused programming language like Python, JavaScript or Ruby You understand how to build and use API interfaces to create appropriate software interfaces You can readily learn most technologies as you go. To you, technologies are about tools and tradeoffs, not an ideology. You have an opinionated personality with excellent written skills. We are a remote team, and your ability to write your thoughts out is critical. You care about the business implications of anything you build. You're not just going after cool stuff - you understand the balance between craft, speed, and the bottom line. Requirements Bachelors degree in Computer Science or Engineering Fluency with Python, Ruby or Javascript Excellent written English communication skills Vocal and opinionated on your design and implementation Focus on clean code and documentation Note: We are a remote-first company and are looking for team members who are comfortable with remote work. We are open to any region / timezone as long as you are self-motivated and can demonstrate a strong work ethic. About Tilda Research We are a clinical trial network built from the ground up, suitable for the modern era of medical innovation. Our passion lies in enabling faster and safer access to life saving treatments for patients. Through our technology enabled network, we are accelerating the process of medical innovation and research across multiple treatment modalities. We work with a diverse set of customers, from large pharma to startup biotech, helping them with meet their clinical trial objectives. Our team deals with a wide range of problems across technology, system integration, automation, research delivery and health care management. Our team consists of of experts in systems engineering, machine learning, clinical research and physicians. We are looking for self-motivated individuals looking to join a fast-paced startup. We are a San Francisco based company, which believes in remote-first teams. We have presence in several locations in the US and Asia. Benefits Amazing Team Impactful work with tangible social benefits Remote first Flexible PTO and hours #J-18808-Ljbffr

About Sei Sei Labs builds open sourced technology for the high-performance Sei Blockchain, the first parallelized EVM Layer 1 blockchain designed to scale with the industry. The unique optimizations built into Sei enable Web3 applications to reach Web2 level scale and performance, driving the mass adoption of digital assets. Our teams are comprised of former Google, Goldman Sachs, Robinhood, Nvidia, and Databricks veterans dedicated to onboarding the next billion users onto a vibrant ecosystem of applications. Sei Labs has raised over $30M from top investors including Jump Crypto, Multicoin Capital, Coinbase Ventures, Distributed Global, Hudson River Trading, and Flow Traders. We're a globally distributed team with a fully remote workforce. Check out our website and docs for more details. Fullstack Engineering at Sei Sei Labs is looking for a Fullstack Engineer to help shape the future of Web3 by empowering innovative, high-impact applications across the Sei Blockchain. You'll work with a team at the forefront of blockchain technology, collaborating closely with our ecosystem partners to develop cutting-edge dApps spanning diverse Web3 domains (from DEX's and games, to DePin, AI and beyond). If you're passionate about constant learning, rapid development, and making a tangible impact in a fast-paced, community-first environment, this is a unique opportunity to push the boundaries of what's possible in decentralized technology. Requirements 3+ years of experience with full-stack development High Proficiency in at least one of TypeScript, JavaScript, Node.js, Go, Rust At least 1+ year of Web3 experience building out dApp's end to end Experience with database management using SQL, NoSQL, or similar technologies Experience with cloud technologies such as AWS, Terraform #J-18808-Ljbffr

A dynamic live shopping platform is seeking a Software Engineer focused on Trust and Risk. The role involves designing systems to protect the platform, balancing risk with user experience, and real-time threat responses. Ideal candidates should possess over 7 years of software engineering experience, including 1+ years in risk-related domains and proficiency in Python. Work-from-home flexibility and a strong emphasis on collaboration will be values in this position. #J-18808-Ljbffr

Our mission is to make it simple to headquarter any business on the internet. Today, we provide companies with a business address and a dashboard to manage their physical mail online. Over 10,000+ companies like Gitlab, Glassdoor, and Indiegogo use Stable to automate their mailroom and act as their permanent business address with the IRS, state, and vendors. The rules that regulate US entities were written in the 1800s. Stable abstracts these antiquated requirements with tools that empower modern companies to move forward faster. These rules don't make sense for the way we work today - work takes place in the cloud and businesses are no longer tied to physical proximity or geography. We're on a mission to fix the broken system of entity management. Starting with business addresses and mail, we're abstracting the complex, archaic systems that make company-building painful and turning them into delightful experiences - so that modern businesses have the tools they need to move forward faster. We're backed by leading Silicon Valley investors like Y Combinator, Craft Ventures, Shakti, Hustle Fund, and founders from companies like Lattice, Apartment List, and FlexJobs. Our business is at an inflection point. We're growing quickly with a product people love and we've proven we can service companies of all stages and industries - from early-stage startups to publicly traded companies in industries like technology, logistics, and property management. This is an opportunity to join an early-stage startup as one of the first employees and do work that directly impacts the future of how companies are built. We're looking for a full stack engineer with 4+ years of experience to join our small team and help us build the software backbone of modern business infrastructure. Supporting over 10,000 businesses with a lean team means we focus on impact. Engineers talk to users, identify real-world bottlenecks, and ship code that unlocks speed and scale. There's no one handing you tickets - you'll define what matters, then build it. You'll work across the stack - frontend, backend, and occasionally hardware - to build software that abstracts away outdated and painful business operations. You'll have a direct hand in shaping the core systems that power our product and logistics. Some examples of what you might work on: Stable Dashboard - The main interface our customers use to triage mail and take action. From forwarding documents to triggering internal workflows, it's a daily tool for founders, ops teams, and finance leaders. Mail Operations Tools - Internal software that powers how we intake, route, and fulfill physical mail requests. You'll write code that integrates directly with scanners, label printers, and other hardware to help our ops team move faster and with fewer errors. Automation & AI - Use LLMs and rule-based systems to process incoming mail, extract relevant information, and automate next steps - from routing to support to operations. Stable API & Webhooks - Design and maintain a reliable, well-documented API and webhook system that external teams use to integrate with Stable. Supports high-volume use cases in fintech, healthcare, logistics, and more. This role is for someone who enjoys building practical products that solve real problems. You're comfortable with ambiguity, ask questions, and ship code with clear, measurable impact. You thrive in a collaborative team and value open communication and joint problem-solving. What you value Be human: Lead with empathy, act with authenticity, and enjoy what you do. Stay curious: Invent novel solutions by asking why, listening, and tinkering. Act quickly with purpose: Focus on what matters, iteratively improve, and move urgently towards the goal. Insist on exceptional outcomes: Strive for excellence and take ownership over the outcomes you deliver. Exceed customer expectations: Create delightful experiences with each interaction. What you'll do Obsess over the customer to build pragmatic and effective solutions to their problems Architect and implement core infrastructure as we scale with growing customer and product demand Design software that solves real-world logistics challenges - often involving both automation and human-in-the-loop workflows Lead end-to-end implementation of features, balancing technical complexity with input from customers, operations, and the business Technologies we use: React, Typescript, Node, GraphQL, MySQL, and AWS (if you think a new technology can solve an engineering problem, we're all ears) What we offer Competitive salary and generous equity Unlimited paid time off Medical, dental, and vision insurance Home office set-up Work from anywhere within continental US time zones (PT, MT, CT, or ET) Opportunities to shape the future of Stable and grow into leadership roles #J-18808-Ljbffr

This hybrid role will serve as the Software Engineer to development of microservices and integrations into the new deposit product platform. You will be part of a team of engineers to ensure scalable, secure and performing solutions in a x-matrix environment while confirming all regulatory requirements are met. Top Required Skills: 5+ years in Java-based development ability deliver on technical requirements and produce scalable solutions. Technical expertise with Java, Spring Boot, building microservices, API development (Apigee), CI/CD pipelines (Jenkins, Git Actions), Containerization (Open Shift), Streaming data (Kafka), Gen AI (CoPilot, Python, Prompt Engineering), developing ETL processes. Proven experience in development work to build integration solution with microservices and APIs within agile environment. Familiarity with large-scale transformation efforts or similar modular banking platforms. Support CI/CD pipelines along with automation to support productivity. Nice-to-have: Domain experience with consumer deposit products and pricing beneficial. Background with additional tech tools that include Flink and Redpanda. Banking experience preferred but not required. Should have experience working in highly regulated industry with large focus on risk/compliance requirements within SDLC. Top Responsibilities: Develop integration and microservice solutions using tech stack that includes Java, Spring Boot, Kafka, Apigee (API), Git Actions, Splunk and Open Shift. Promote automation and leveraging of Gen AI tools for productivity - CoPilot, Python, Prompt Engineering. Write integration and unit tests using TDD/BDD while enforcing code quality, and DevOps practices.

A leading technology company is seeking a Software Engineer for their Data & Analytics Platform. The role is remote and offers the opportunity to design, build, and optimize data infrastructure. Ideal candidates will possess 5+ years of software development experience and strong skills in data technologies like Spark and Kafka. This position values diverse experiences and offers competitive benefits, including health care and retirement options. #J-18808-Ljbffr