Software engineer jobs in San Francisco, CA

Our client is building the world's fastest-growing marketplace for elite creative talent. We connect award-winning artists, directors, musicians, animators, and designers with frontier AI labs developing the next generation of multimodal systems including models like Sora, Suno, Runway, and Grok Imagine. This role is paying up to $300k salary base with 2% equity in top. Must have AI/LLM/Multimodal experience. Fully onsite role. We are a small, high-talent-density team from Stanford and Mercor, backed by: The Co-Founder of xAI The Founder of Periodic Labs Researchers from OpenAI's Sora team DeepMind alignment & evaluation leads Senior researchers from Salesforce AI, Meta, Google, and Anthropic Role Overview As a Founding Engineer, you will own core product surfaces, architecture, and infrastructure for the platform. You'll help shape engineering culture, drive rapid product iteration, and work directly with founders to build the marketplace and data systems powering the next wave of multimodal AI innovation. This role is ideal for someone who thrives in high-agency environments, ships quickly, and enjoys solving end-to-end problems across the stack. What You Will Build Marketplace & Talent Systems Onboarding flows for elite creative talent AI-assisted interviews and evaluations Self-serve matching tools between talent and AI labs Payment, billing, and workflow automation Data & Infrastructure Products Tools for frontier AI labs to support training and evaluation Internal platforms for data quality, annotation, and performance insights Product & Engineering Leadership Shape engineering culture, processes, and best practices Ship fast across greenfield projects with high ownership Influence product direction through tight feedback cycles with founders and users What We're Looking For Strong proficiency with Python, React, and TypeScript Experience with AWS, Docker, CI/CD, and modern infrastructure tooling Ability to operate independently and handle ambiguity in a fast-moving environment Interest in gamified platforms, creative tools, or marketplace dynamics Bias for action, strong communication skills, and a builder mentality

Software Test Automation Engineer - Medical Device Systems We are seeking an experienced Software Test Automation Engineer to design, develop, and maintain automated testing frameworks for our medical device platform. This role will focus on verification testing and system integration testing across a multi-layered technology stack including C firmware, WPF/C# applications, and Python-based analysis components. Key Responsibilities Design and implement comprehensive automated test frameworks for verification and system integration testing across firmware, application, and analysis layers Create and maintain automated tests for WPF/C# application workflows and user interface functionality Build test automation for Python-based analysis algorithms and reporting systems Develop automated tests for C firmware components that interface with medical sensors and hardware Establish end-to-end system integration tests that validate data flow and functionality across the entire platform (firmware → application → analysis → reporting) Collaborate with firmware, software, and systems engineering teams to understand requirements and identify testable scenarios Maintain and enhance CI/CD pipelines to enable continuous automated testing Document test plans, test cases, test results, and traceability matrices in accordance with medical device regulatory requirements Identify, document, and track software defects through resolution Participate in design reviews and provide testability feedback during development phases Support verification and validation activities for regulatory submissions (FDA, ISO 13485, IEC 62304) Required Qualifications Bachelor's degree in Computer Science, Software Engineering, or related field (or equivalent experience) 5+ years of experience in software test automation Strong programming skills in C# and Python (C coding experience is a plus) Proven experience developing and maintaining automated test frameworks (e.g., NUnit, pytest, Robot Framework) as well as with WPF application testing and UI automation frameworks (e.g., White, FlaUI, Appium) Experience with system integration testing across multiple software components and languages Solid understanding of software testing methodologies, test design techniques, and quality assurance best practices Experience with version control systems (Git) and CI/CD tools (Bitbucket Pipelines, Jenkins, GitLab CI) Strong analytical and problem-solving skills with attention to detail Excellent written and verbal communication skills Preferred Qualifications Experience testing medical devices or other regulated software systems (FDA, ISO 13485, IEC 62304) Experience with firmware testing, embedded systems, or hardware-software integration testing Knowledge of sensor technologies and data acquisition systems Experience with requirements traceability and test management tools Understanding of risk-based testing approaches for medical devices What We Offer Medical Dental Vision 401k Unlimited PTO Gym Access Other Perks

Primary Focus: Simulator Development (C#), Automation (Squish), & Firmware/Hardware Validation In this pivotal role, you will own the enhancement and maintenance of our proprietary Software Simulator-the critical tool used to validate our robotic surgical hardware and firmware without needing the physical robot every time. You will spend the majority of your time coding in C# to expand the simulator's capabilities, while also using Squish and Python to drive automation. If you are a C# developer at heart who loves developing a software simulation, this is your role. What You Will Actually Be Doing ·Core Responsibility: Lead the design, development, and enhancement of the client System Simulator using C#. You will build the virtual environment that mocks hardware behavior to test firmware and software logic. ·Automation Strategy: Develop and execute automated test scripts using Squish (GUI automation) and Python. ·Hybrid Validation: Perform a mix of automated and manual testing. You will manually execute complex test cases where automation isn't yet feasible, ensuring total system safety. ·Hardware/Firmware Interface: Validate the interaction between high-level software and low-level firmware/hardware components via the simulator. ·Compliance & Process: Draft verification protocols and manage requirements/defects using JAMA and Jira, ensuring strict adherence to FDA QSR and IEC 62304 standards. ·CI/CD Integration: Integrate simulator tests into the Continuous Integration pipeline (Jenkins/GitHub) to catch regressions early. The "Must-Have" Skills (Non-Negotiables) ·C# Expertise: Minimum 5+ years of hands-on development experience in C#. You must be comfortable writing complex object-oriented code, not just editing scripts. ·Python Experience: Minimum 2+ years of scripting experience (used for glue code and automation support). ·Automation Tools: Proven experience with Squish (preferred), WinAppDriver, or similar GUI automation tools. ·Flexibility: Willingness to perform manual testing when necessary to ensure product quality. Preferred Qualifications ·Medical Device Background: Solid understanding of FDA QSR (21 CFR Part 820), ISO 13485, and the V&V (Verification & Validation) process. ·Experience testing Firmware or embedded systems via simulation. ·Experience with JAMA for requirements management. ·Background in Robotics or complex electromechanical systems.

We're seeking a Full Stack Software Engineer with strong backend development skills in Python and frontend expertise in React.js. You'll help design, implement, and scale full stack web applications that are secure, performant, and user-centric. Responsibilities Architect, build, and maintain backend services using Python (FastAPI, Flask, Django) Design and implement dynamic and responsive frontends using React.js and/or Vue.js Create and consume RESTful and GraphQL APIs Build reusable components and libraries for frontend use Collaborate across teams to gather requirements, define solutions, and ensure quality Optimize performance and scalability of applications Write unit, integration, and end-to-end tests across the stack Participate in peer code reviews and provide mentorship where appropriate Required Qualifications 5+ years of experience in full stack development M.S. degree in relevant domain required Proficiency with Python and one or more major web frameworks (e.g., FastAPI, Django) Advanced skills in React.js, including Hooks, Context, and state management libraries (e.g., Redux, Zustand) Experience with Vue.js or interest in working across multiple frontend frameworks Familiarity with modern frontend tooling: Webpack, Vite, Babel, ESLint Solid experience with HTML5, CSS3, SASS/SCSS, and responsive UI design Strong understanding of RESTful services, API security, and performance optimization Knowledge of relational databases (PostgreSQL, MySQL) and NoSQL options (MongoDB, Redis) Git and CI/CD best practices (GitHub Actions, CircleCI, GitLab CI) Strong communication skills and a collaborative approach to engineering Preferred Qualifications Familiarity with TypeScript Experience with cloud platforms (AWS, GCP, or Azure) Experience with Docker, Kubernetes, or container orchestration GraphQL and Apollo Client experience Familiarity with microservice architecture Experience working with real-time data (WebSockets, MQTT)

The Residential Energy Software Engineer will support the development and validation of advanced residential energy systems within an industry-leading organization. This role focuses on building, testing, and maintaining high-quality software that manages energy hardware end to end. The position involves close collaboration with cross-functional teams to ensure system reliability, performance, and safety in a fast-paced environment. Key Responsibilities: • Collaborate with product managers and cross-disciplinary engineers to develop technical designs and specifications • Design, develop, and maintain scalable and reliable software systems for residential energy solutions • Contribute to overall system architecture and integration strategies • Develop applications for system installation, configuration, monitoring, and diagnostics • Partner with engineering teams to design and implement application programming interfaces • Drive technical innovation to improve system reliability, performance, and developer productivity Required Qualifications: • Bachelor's degree in Computer Science or equivalent practical experience • Experience developing highly available, mission-critical software applications and test suites • Proficiency with system programming languages such as C, C Plus Plus, Rust, Go, Java, or C Sharp • Hands-on experience with Internet and Internet of Things protocols such as HTTP, REST, WebSockets, gRPC, or Matter • Ability to multitask, prioritize work, and perform effectively in a fast-paced, collaborative environment Preferred Qualifications: • Experience with embedded systems and related communication protocols • Exposure to web development, data analysis, or data science tools • Familiarity with common cryptography mechanisms Benefits: The Company offers the following benefits for this position, subject to applicable eligibility requirements: medical insurance, dental insurance, vision insurance, 401(k) retirement plan, life insurance, long-term disability insurance, short-term disability insurance, paid parking/public transportation, paid time off, paid sick and safe time, hours of paid vacation time, weeks of paid parental leave, and paid holidays annually - as applicable. Pay Range: $60 - $67 per hour (depending on experience)

We are actively searching for a Founding Protocol Engineer to join our team on a permanent basis. In this position you will If you are someone that is impressed with what Hyperliquid has accomplished then this role is for you. We are on a mission to build next generation lending and debt protocols. We are open to both Senior level and Architect level candidates for this role. Your Rhythm: Drive the architecture, technical design, and implementation of our lending protocol. Collaborate closely with researchers to validate and test designs Collaborate with auditors and security engineers to ensure safety of the protocol Participate in code reviews, providing constructive feedback and ensuring adherence to established coding standards and best practices Your Vibe: 5+ years of professional software Engineering experience 3+ years of experience working in Solidity in EVM in production environments, specifically focused in DeFi products 2+ years of experience working with a modern backend languages (Go, Rust, Python, etc) in distributed architectures Experience building lending protocols in a smart contract language Open to collaborating onsite a few days a week at our downtown SF office Our Vibe: Relaxed work environment 100% paid top of the line health care benefits Full ownership, no micro management Strong equity package 401K Unlimited vacation An actual work/life balance, we aren't trying to run you into the ground. We have families and enjoy life too!

Tranzeal is an industry leading global Business Transformation Service Provider offering specific consulting services as well as prepackaged, industry specific solutions and services to companies around the world. Our Consulting Services are dedicated to helping our clients maximize their investments in IT and the overall effectiveness and efficiency of the business. Tranzeal s deep industry experience makes us the partner of choice for a growing number of Fortune 1000 companies, midsize enterprises and small businesses worldwide. We are currently looking for 'Senior Software Engineer (Quadient Inspire)' to support one of our clients with the following skills: Requirement: Job Title: Senior Software Engineer (Quadient Inspire) Location: Alpharetta, GA (Local candidates only) Other Accepted Locations: Rancho Cordova, CA | Oakland / San Francisco, CA Duration: 12 Months Contract to Hire Work Authorization: W2 Only Bill Rate: DOE Job Description We are seeking a Senior Software Engineer with strong hands-on experience in the Quadient Inspire Platform to design, develop, and implement customer communication workflows. The ideal candidate will have solid API development experience and the ability to build secure, scalable solutions aligned with enterprise architecture standards. This is a Contract-to-Hire role. Candidates must be local to one of the listed client locations. Fully remote-only candidates may not be considered. Key Responsibilities Design, develop, test, and implement customer communication workflows using Quadient Inspire Build and integrate secure, scalable APIs following architectural guidelines Collaborate with internal and external stakeholders on input/output requirements and system usage Support strategic planning, quality assurance, and compliance with internal controls Assist in troubleshooting and resolving workflow and integration issues Required Technical Skills Quadient Inspire Platform: Designer, Scaler, Content Manager, Automation, Interactive, Approve Workflow API Technologies: REST, SOAP, and other API protocols Programming Languages: Java, JavaScript, Shell Scripting Databases: SQL Version Control: GitHub Experience & Education 5+ years of software engineering experience Bachelor s degree required Master s degree preferred Preferred Skills Experience with Customer Communications Management (CCM) platforms Exposure to Precisely EngageOne platform Engagement & Compliance Details W2 consultants only W2 consultants from a consulting firm on C2C are also workable Sponsorship requirement must be disclosed upfront Candidates must be eligible for conversion to full-time employment Interested candidates or suppliers: Please share resumes with full details to sureshs(at)tranzeal(dot)(com) The national base pay range below is a good-faith estimate of what our client may pay for new hires. Actual pay may vary based on Client's assessment of the candidates knowledge, skills, abilities (KSAs), related experience, education, certifications and ability to meet required minimum job qualifications. Other factors impacting pay include prevailing wages in the work location and internal equity. $80 - $90 per hour on W2.

I'm hiring an AI Product Engineer for a fast-growing AI start-up that's building agents to automate financial crime workflows. Their tech works like a real analyst inside a browser and internal tools, helping banks cut huge amounts of manual work and stop fraud more effectively. They're small, highly technical, and already seeing strong traction with major institutions. In this role, you'll work across the stack, build end-to-end features, shape new agent capabilities, and help ship production systems that have real impact for customers. We're looking for engineers who: Love building quickly and owning problems end to end Have experience with production systems or AI/ML workflows Communicate clearly and enjoy working with minimal process Want to push what's possible with AI agents in the real world Minimum Bachelor's degree in Computer Science (or adjacent) Their stack is Python, Node, React and Typescript (not a dealbreaker to be experienced with these!) Apply or reach out directly if you're interested!

A pioneering and well-funded AI company is seeking a talented Python Backend Engineer to build the core infrastructure for its revolutionary autonomous systems. This is a unique opportunity to join an innovative team at the forefront of engineering and artificial intelligence, creating a new category of software that will redefine how complex products in sectors like aerospace, automotive, and advanced manufacturing are designed and developed. Why Join? Build the Future of Engineering: This isn't just another backend role. Your work will directly shape how next-generation rockets, cars, and aircraft are designed, fundamentally changing the engineering landscape. Solve Unprecedented Technical Puzzles: Tackle unique challenges in building the infrastructure for autonomous AI agents, including simulation orchestration, multi-agent coordination, and scalable model serving. Shape a Foundational Platform: As a critical member of a pioneering team, you will have a significant impact on the technical direction and core architecture of an entirely new category of software. Join a High-Impact Team: Work in a collaborative, fast-paced environment where your expertise is valued, and you have end-to-end ownership of critical systems. Compensation & Location: Base salary of up to $210,000 + equity + benefits, while working on-site with the team in a modern office in downtown San Francisco. The Role As a Python Backend Engineer, you will be instrumental in constructing the infrastructure that underpins these autonomous engineering agents. Your responsibilities will span model serving, simulation orchestration, multi-agent coordination, and the development of robust, developer-facing APIs. This position is critical for delivering the fast, reliable, and scalable systems that professional engineers will trust and depend on in high-stakes production environments. You will: Own and build the core backend infrastructure for the autonomous AI agents, focusing on scalability, model serving, and multi-agent orchestration. Design and maintain robust APIs while integrating essential third-party tools like CAD software and simulation backends into the core platform. Develop backend services to process and serve complex 3D visualizations from simulation and geometric data. Collaborate across ML, frontend, and simulation teams to shape the product and engage directly with early customers to drive infrastructure needs. Make foundational architectural decisions that will define the technical future and scalability of the entire platform. The Essential Requirements Strong backend software engineering experience, with a primary focus on Python. Proven experience in designing, building, and maintaining production-level APIs (FastAPI preferred but Flask and Django also considered). Experience with 3D visualization libraries or tools such as PyVista, ParaView, or VTK. Excellent systems-thinking skills and the ability to reason about the interactions between compute, data, and models. Experience working in fast-paced environments where end-to-end ownership and proactivity are essential. Exceptional communication and collaboration abilities. What Will Make You Stand Out Experience integrating with scientific or engineering software (such as CAD, FEA, or CFD tools). Exposure to agent frameworks, workflow orchestration engines, or distributed systems. Familiarity with model serving frameworks (e.g., TorchServe, Triton) or simulation backends. Previous experience building developer-focused tools or working in high-trust, customer-facing technical roles. If you are interested in this role, please apply with your resume through this site. SEO Keywords for Search Python Backend Engineer, Python Software Engineer, Backend Engineer, Software Engineer, Python Developer, AI Engineer, Machine Learning Infrastructure, MLOps Engineer, Backend Software Engineer (Python), Senior Backend Engineer, AI/ML Engineer, Infrastructure Engineer, FastAPI Developer, PyVista, ParaView, VTK, 3D Visualization, Docker, Kubernetes, Cloud Engineer, AI Platform Engineer, Distributed Systems Engineer, Simulation Software Engineer, CAD Integration, CFD, FEA, Scientific Computing, High-Performance Computing (HPC), Agent Frameworks, Workflow Orchestration, Technical Lead, Staff Engineer. Disclaimer Attis Global Ltd is an equal opportunities employer. No terminology in this advert is intended to discriminate on any of the grounds protected by law, and all qualified applicants will receive consideration for employment without regard to age, sex, race, national origin, religion or belief, disability, pregnancy and maternity, marital status, political affiliation, socio-economic status, sexual orientation, gender, gender identity and expression, and/or gender reassignment. M/F/D/V. We operate as a staffing agency and employment business. More information can be found at attisglobal.com.

Robotics Software Engineer (Generalist/Full-Stack) Robotic Software Engineer - Humanoid Robotics Palo Alto, SF Bay Area (Full-time | Onsite) $180k-$200k + equity (flexible for exceptional candidates) We are recruiting building next-generation humanoid robotic systems that combine advanced AI with cutting-edge hardware. Our team moves fast, prototypes aggressively, and puts real robots into the world. We're now hiring a Robotic Software Engineer to help shape our core software stack and accelerate the development of our embodied AI systems. What You'll Work On As part of a small, high-impact engineering team, you will: Build and optimise robotics software in C++ and ROS2 Integrate perception, control, planning, and learning modules Work hands-on with robots to bring up new hardware and run real-world experiments Deploy reinforcement learning / imitation learning policies onto physical robots Develop middleware, interfaces, and tooling that connect AI → hardware Prototype behaviours across diverse robot types (arms, humanoids, mobile platforms, drones) This role directly supports both our AI and hardware teams and has significant ownership from day one. Must-haves: Strong C++ development skills (multi-threading, performance, systems-level) Professional experience with ROS2 Hands-on robotics experience - ideally robot learning on physical hardware Ability to work on real robots (debugging, integration, testing) Generalist mindset and comfort in a fast-paced startup environment Nice-to-haves: Manipulation or kinematics (humanoids, arms, quadrupeds) Controls for mobile robots or drones Sensor/actuator integration, drivers, or middleware experience VR prototyping (Meta Quest or similar) Experience across different robot embodiments Why Join Us Build software that runs on real humanoid robots immediately High ownership within a small, world-class engineering team Competitive compensation + meaningful equity Opportunity to influence architecture, roadmap, and product direction Work at one of the most exciting intersections in tech: AI × robotics

We're a Series A and we need a systems-savvy engineer who can architect, optimize, and turbocharge our multi-target runtime from day one. If concurrent programming is your playground, C++14 is your native language, and you think in cache lines, pipelines, and memory hierarchies, this role puts you at the heart of the action. What You'll Do Design, build, and continually improve our multi-target runtime Apply cutting-edge parallelization + partitioning techniques to generate and exploit highly optimized kernels Rapidly prototype ideas and validate them with real data What You Bring Deep expertise in asynchronous + concurrent programming 4+ years of modern C/C++ Strong grasp of hardware architecture (scalar vs vector, memory hierarchies, etc.) Knowledge of OS kernel or hypervisor development Bonus Points CUDA/ROCm library experience GPU programming background HPC experience MS/PhD in CS or equivalent Familiarity with PyTorch, JAX, Triton Experience wrangling large compute clusters Why You'll Love It You'll own critical, performance-sensitive systems that sit at the core of our stack; shaping how next-gen ML models run across diverse hardware. High impact, deep tech, zero bureaucracy. If you want to engineer at the limits of performance and help build a runtime that changes the game let's talk!

The Fountain Group is a national staffing firm and we are currently seeking a Test & Development Engineer (Mobile Applications) for a prominent client of ours. This position is in Alameda, CA (Preferred), Milpitas, CA or Portland, OR Details for the position are as follows: Pay: $51-55/hour Locations: Alameda, CA (preferred) | Milpitas, CA | Portland, OR Work Model: First 30 days onsite, then potential hybrid Industry: Medical Device / SaMD (preferred, not required) 🚨 IMPORTANT: Developer-First Role This is not a traditional QA or manual testing role. We are seeking a software developer who specializes in test automation - someone who writes code daily, builds automation frameworks, and enjoys solving problems through development. Candidates who primarily execute existing test scripts or rely on frameworks built by others will not be a fit. About the Role You will play a key role in designing, building, and maintaining automated test solutions for mobile Software as a Medical Device (SaMD) application. This role requires strong hands-on coding ability, comfort being evaluated through a live coding exercise, and experience working across Android and iOS platforms. Automation engineers on this team are expected to author automation, not just run it. What You'll Do Design, write, and maintain automated test scripts for mobile applications (primary responsibility) Develop and enhance automation frameworks (Python-based; migrated from Java) Perform automated and targeted manual testing for Android and iOS applications Execute automated API testing Test on real mobile devices, emulators, and cloud device farms Collaborate closely with Development, Test, Product, and Delivery teams Track work and defects in Jira Contribute to test strategy, maintainability, and continuous improvement Performance is measured on the creation, maintenance, and execution of automation scripts. Required Qualifications 5+ years of hands-on mobile application testing experience Strong software development skills - you write code daily Experience authoring automation scripts from scratch Proficiency in Python (preferred) or strong coding ability in another language with willingness to work in Python Experience with Appium Hands-on testing experience with Android and iOS Automated API testing experience Experience testing on real devices Comfortable completing a live coding challenge during the interview process (no AI use) Nice to Have (Preferred) Java experience Experience in Medical Devices, SaMD, or other highly regulated industries BrowserStack or AWS Device Farm experience IBM ETM (training available) Open-source contributions related to automation or testing tools Who Will Be Successful in This Role Developers who moved into test automation Automation engineers who love to code Candidates who can clearly explain what code they wrote, not just what they executed Engineers comfortable being evaluated on real technical skills

About Company, Droisys is an innovation technology company focused on helping companies accelerate their digital initiatives from strategy and planning through execution. We leverage deep technical expertise, Agile methodologies, and data-driven intelligence to modernize systems of engagement and simplify human/tech interaction. Amazing things happen when we work in environments where everyone feels a true sense of belonging and when candidates have the requisite skills and opportunities to succeed. At Droisys, we invest in our talent and support career growth, and we are always on the lookout for amazing talent who can contribute to our growth by delivering top results for our clients. Join us to challenge yourself and accomplish work that matters. We're hiring Backend Software Engineer - Cloud Services in Sunnyvale, CA . What You'll Do Take full ownership of your services: drive the design, contribute new features, participate in peer reviews, and deliver production-ready solutions. Develop software primarily in Java and Python. Work with Kubernetes or be willing to quickly ramp up on container orchestration. Own end-to-end responsibility for major features and subsystems-from refining requirements to successful deployment in customer environments. Manage operational health of your services, including telemetry, metrics, and rapid production issue detection. Ensure high code quality through early testing, functional verification, and integration testing. Collaborate closely with Product Management to clarify scope, finalize requirements, and plan delivery. What You'll Bring Bachelor's degree in Computer Science or similar field (Master's preferred). 3+ years of experience building scalable, distributed systems. A strong passion for building software, learning new technologies, and collaborating in a team environment. Hands-on experience with AWS, Azure, or GCP, particularly at the programming/API level. Background in networking or security is a plus. Proficiency in Java and/or Python, with familiarity using REST APIs. Experience with CloudFormation or Terraform is beneficial. Knowledge of Spring or similar backend frameworks. Understanding of Kubernetes, Docker, and containerized environments is helpful. Familiarity with classic Gang of Four design patterns. Droisys is an equal opportunity employer. We do not discriminate based on race, religion, color, national origin, gender, gender expression, sexual orientation, age, marital status, veteran status, disability status or any other characteristic protected by law. Droisys believes in diversity, inclusion, and belonging, and we are committed to fostering a diverse work environment

Our client is building the world's fastest-growing marketplace for elite creative talent. We connect award-winning artists, directors, musicians, animators, and designers with frontier AI labs developing the next generation of multimodal systems including models like Sora, Suno, Runway, and Grok Imagine. This role is paying up to $300k salary base with 2% equity in top. Must have AI/LLM/Multimodal experience. Fully onsite role. We are a small, high-talent-density team from Stanford and Mercor, backed by: The Co-Founder of xAI The Founder of Periodic Labs Researchers from OpenAI's Sora team DeepMind alignment & evaluation leads Senior researchers from Salesforce AI, Meta, Google, and Anthropic Role Overview As a Founding Engineer, you will own core product surfaces, architecture, and infrastructure for the platform. You'll help shape engineering culture, drive rapid product iteration, and work directly with founders to build the marketplace and data systems powering the next wave of multimodal AI innovation. This role is ideal for someone who thrives in high-agency environments, ships quickly, and enjoys solving end-to-end problems across the stack. What You Will Build Marketplace & Talent Systems Onboarding flows for elite creative talent AI-assisted interviews and evaluations Self-serve matching tools between talent and AI labs Payment, billing, and workflow automation Data & Infrastructure Products Tools for frontier AI labs to support training and evaluation Internal platforms for data quality, annotation, and performance insights Product & Engineering Leadership Shape engineering culture, processes, and best practices Ship fast across greenfield projects with high ownership Influence product direction through tight feedback cycles with founders and users What We're Looking For Strong proficiency with Python, React, and TypeScript Experience with AWS, Docker, CI/CD, and modern infrastructure tooling Ability to operate independently and handle ambiguity in a fast-moving environment Interest in gamified platforms, creative tools, or marketplace dynamics Bias for action, strong communication skills, and a builder mentality

Software Engineer - AI Infra Startup - San Francisco, CA A small, deeply technical AI infra startup in San Francisco, building the platform that next-gen AI apps will run on - think custom compilers, CUDA kernels, and distributed orchestration are looking for a Software Engineer to join their team. What will I be doing? As a Software Engineer you'll help architect and build the infrastructure powering the next generation of AI systems. You'll work across the stack on: High-performance, distributed systems that support real-time AI workloads Kubernetes orchestration, infra tooling, and automation pipelines Low-level runtime components like custom compilers and CUDA kernels Scalable, reliable backend services Collaborating directly with the founding team on technical strategy and core architecture What are we looking for? Strong background in systems programming, backend, or infra engineering Experience with distributed systems, container orchestration, and Linux internals Comfortable working across multiple layers of the stack, from low-level code to infra ops Fast learner who thrives in ambiguous, high-agency environments Bonus: Experience with compilers, CUDA, or ML infrastructure What's in it for me: up to $300k base dependent on experience + 0.2-0.5% equity Work directly with deeply technical founders (ex-Stanford, Google, and more) on some of the hardest problems in AI infra On-site in San Francisco Stealth startup with serious backing, operating lean and hiring intentionally Apply now for immediate consideration!

This role supports the development of scalable backend systems for customer-facing digital platforms used across global markets. The Backend Software Engineer will build and maintain core services that power end-to-end product journeys, including ordering, delivery, installation, and ownership experiences. The position requires strong backend engineering expertise, a quality-first mindset, and the ability to thrive in a fast-paced, evolving environment. Key Responsibilities: • Design, develop, and support backend applications for order processing, installation workflows, and ownership experiences • Own features and projects through design, development, testing, release, and production support • Write clean, maintainable, high-performance, and well-tested code • Develop and execute unit tests and integration tests in collaboration with quality teams • Monitor production systems, respond to alerts, and troubleshoot live issues • Analyze existing systems and recommend technical improvements to enhance performance and scalability • Communicate project updates, dependencies, risks, and blockers clearly to stakeholders • Improve system scalability, availability, maintainability, and observability • Work with modern backend technologies, containerization, and distributed systems Required Qualifications: • Strong experience designing and consuming REST application programming interfaces • Proficiency in object-oriented programming languages • Experience with microservices or service-oriented architectures • Hands-on experience with relational or non-relational databases • Solid understanding of unit testing and integration testing practices • Experience with message queue-based architectures • Working knowledge of structured query language databases such as MySQL or PostgreSQL Preferred Qualifications: • Experience with event-streaming and open-source technologies such as Kafka, Debezium, or Elasticsearch • Familiarity with containerization and orchestration tools • Exposure to cloud-native application development Benefits: The Company offers the following benefits for this position, subject to applicable eligibility requirements: medical insurance, dental insurance, vision insurance, 401(k) retirement plan, life insurance, long-term disability insurance, short-term disability insurance, paid parking/public transportation, paid time off, paid sick and safe time, hours of paid vacation time, weeks of paid parental leave, and paid holidays annually - as applicable. Pay Range: $60/hr to $80/hr

We are actively searching for a Founding Protocol Engineer to join our team on a permanent basis. In this position you will If you are someone that is impressed with what Hyperliquid has accomplished then this role is for you. We are on a mission to build next generation lending and debt protocols. We are open to both Senior level and Architect level candidates for this role. Your Rhythm: Drive the architecture, technical design, and implementation of our lending protocol. Collaborate closely with researchers to validate and test designs Collaborate with auditors and security engineers to ensure safety of the protocol Participate in code reviews, providing constructive feedback and ensuring adherence to established coding standards and best practices Your Vibe: 5+ years of professional software Engineering experience 3+ years of experience working in Solidity in EVM in production environments, specifically focused in DeFi products 2+ years of experience working with a modern backend languages (Go, Rust, Python, etc) in distributed architectures Experience building lending protocols in a smart contract language Open to collaborating onsite a few days a week at our downtown SF office Our Vibe: Relaxed work environment 100% paid top of the line health care benefits Full ownership, no micro management Strong equity package 401K Unlimited vacation An actual work/life balance, we aren't trying to run you into the ground. We have families and enjoy life too!

We're seeking a Full Stack Software Engineer with strong backend development skills in Python and frontend expertise in React.js. You'll help design, implement, and scale full stack web applications that are secure, performant, and user-centric. Responsibilities Architect, build, and maintain backend services using Python (FastAPI, Flask, Django) Design and implement dynamic and responsive frontends using React.js and/or Vue.js Create and consume RESTful and GraphQL APIs Build reusable components and libraries for frontend use Collaborate across teams to gather requirements, define solutions, and ensure quality Optimize performance and scalability of applications Write unit, integration, and end-to-end tests across the stack Participate in peer code reviews and provide mentorship where appropriate Required Qualifications 5+ years of experience in full stack development M.S. degree in relevant domain required Proficiency with Python and one or more major web frameworks (e.g., FastAPI, Django) Advanced skills in React.js, including Hooks, Context, and state management libraries (e.g., Redux, Zustand) Experience with Vue.js or interest in working across multiple frontend frameworks Familiarity with modern frontend tooling: Webpack, Vite, Babel, ESLint Solid experience with HTML5, CSS3, SASS/SCSS, and responsive UI design Strong understanding of RESTful services, API security, and performance optimization Knowledge of relational databases (PostgreSQL, MySQL) and NoSQL options (MongoDB, Redis) Git and CI/CD best practices (GitHub Actions, CircleCI, GitLab CI) Strong communication skills and a collaborative approach to engineering Preferred Qualifications Familiarity with TypeScript Experience with cloud platforms (AWS, GCP, or Azure) Experience with Docker, Kubernetes, or container orchestration GraphQL and Apollo Client experience Familiarity with microservice architecture Experience working with real-time data (WebSockets, MQTT)

We're seeking a Full Stack Software Engineer with strong backend development skills in Python and frontend expertise in React.js. You'll help design, implement, and scale full stack web applications that are secure, performant, and user-centric. Responsibilities Architect, build, and maintain backend services using Python (FastAPI, Flask, Django) Design and implement dynamic and responsive frontends using React.js and/or Vue.js Create and consume RESTful and GraphQL APIs Build reusable components and libraries for frontend use Collaborate across teams to gather requirements, define solutions, and ensure quality Optimize performance and scalability of applications Write unit, integration, and end-to-end tests across the stack Participate in peer code reviews and provide mentorship where appropriate Required Qualifications 5+ years of experience in full stack development M.S. degree in relevant domain required Proficiency with Python and one or more major web frameworks (e.g., FastAPI, Django) Advanced skills in React.js, including Hooks, Context, and state management libraries (e.g., Redux, Zustand) Experience with Vue.js or interest in working across multiple frontend frameworks Familiarity with modern frontend tooling: Webpack, Vite, Babel, ESLint Solid experience with HTML5, CSS3, SASS/SCSS, and responsive UI design Strong understanding of RESTful services, API security, and performance optimization Knowledge of relational databases (PostgreSQL, MySQL) and NoSQL options (MongoDB, Redis) Git and CI/CD best practices (GitHub Actions, CircleCI, GitLab CI) Strong communication skills and a collaborative approach to engineering Preferred Qualifications Familiarity with TypeScript Experience with cloud platforms (AWS, GCP, or Azure) Experience with Docker, Kubernetes, or container orchestration GraphQL and Apollo Client experience Familiarity with microservice architecture Experience working with real-time data (WebSockets, MQTT)