Front end developer jobs in Tracy, CA

Onsite - 3 Days a week Responsibilities: • Design, build, test, monitor, manage and maintain tool chains for critical functions. • Automate technologies to improve the velocity and quality of engineering efforts. Requirements: • BS/MS Computer Science/Engineering Degree • Deep knowledge of one or more languages including shell, Perl, Python, Java and/or Ruby • Background in object-oriented programming • Understanding of data structures, data modeling and software architecture • Deep knowledge of math, probability, statistics, and algorithms is a plus • Excellent organizational, time management, and communication skills • Ability to think critically and to formulate solutions to problems in a clear, concise, and timely manner. • Expertise in Database administration and SQL • Ability to visualize a proposed system and be able to build it • Experience with ASIC standard verification tools, languages, and flows is a plus.

Client's Global Security Tools team builds web and iOS applications to protect client's people and information. The apps we develop and support are used daily by thousands of employees around the world to help them deliver amazing products and experiences to client's customers. We are constantly taking on new projects to address critical business and security challenges, and we need a creative, experienced developer to help. In a typical day on the team, you'll spend time on writing code, and an equal amount of time reviewing others' contributions or discussing different approaches to solving a technical challenge. You'll regularly suggest opportunities to improve how we work as a team and deliver high-quality apps, whether by changing how we communicate or improving our build pipeline. We strongly value problem-solving and continuous improvement. When we find a great technical or process solution, we adopt and adapt it across our projects. Being disciplined about our day-to-day work gives us the freedom to respond flexibly and creatively to new challenges. Due to client requirement, applicants must be willing and able to work on a w2 basis. For our w2 consultants, we offer a great benefits package that includes Medical, Dental, and Vision benefits, 401k with company matching, and life insurance. Rate: $65 - $75 / hr. w2 Responsibilities: You will be expected to work collaboratively with the team while taking responsibility for your own contributions. You should be comfortable taking ownership over a specific goal or problem (even if it's a small one) and prepared to talk about your experiences in doing that. We build full stack applications with PHP (Symfony) and Swift on the back-end, Ember.js and SwiftUI on the front-end. Requirements: Front-end development using Vue.js, Ember.js and/or React (must have Ember.js) Back-end API development with PHP and Symfony or a similar framework Continuous integration and deployment We believe that the best candidates can learn our specific problems and tools quickly, but they must bring a strong motivation for learning, self- and team improvement, and delivering their best in a complex, time-sensitive environment. Please be advised- If anyone reaches out to you about an open position connected with Eliassen Group, please confirm that they have an Eliassen.com email address and never provide personal or financial information to anyone who is not clearly associated with Eliassen Group. If you have any indication of fraudulent activity, please contact ********************. Skills, experience, and other compensable factors will be considered when determining pay rate. The pay range provided in this posting reflects a W2 hourly rate; other employment options may be available that may result in pay outside of the provided range. W2 employees of Eliassen Group who are regularly scheduled to work 30 or more hours per week are eligible for the following benefits: medical (choice of 3 plans), dental, vision, pre-tax accounts, other voluntary benefits including life and disability insurance, 401(k) with match, and sick time if required by law in the worked-in state/locality. JOB ID: JN -082024-84387

We are looking for a UI Builder domain expert who will work directly with Client UX decisionmakers, prototype and develop custom workspaces and widgets in UIB/Seismic, effectively communicate UI needs to a large offshore project team and coach them in UI Builder as needed. The project is at Client itself, building out a large new SOM implementation internally, and this person will own the UX for the implementation team. The role may end up working with product development as well over time. We need someone in the Santa Clara, CA area who can go in and whiteboard and collaborate with the designers a couple of days a week. We are seeking an experienced Client Developer with a minimum of 5 years of hands-on expertise on the Client platform. The ideal candidate will be a domain expert in UI Builder and a strong Seismic developer and have strong technical knowledge in Scripting and Service Portal, and be conversant in Flow Designer, Integration Hub, and Rest Integrations, with added advantage if certified application developer and experienced in CSM, NowAssist, and Agentic AI implementations. Key Responsibilities • Design, develop, and customize applications on the Client platform to meet business needs. • Build and maintain Script Includes, Business Rules, Client Scripts, UI Policies, and Integration APIs. • Develop and enhance Service Portal components, Catalog Items, Widgets, and Workflows. • Utilize UI Builder to design and configure modern, scalable user interfaces. • Collaborate with stakeholders to gather requirements and translate them into technical solutions. • Support CSM (Customer Service Management) implementations with configuration, customization, and integration. • Explore and implement NowAssist and AgentAI capabilities to improve automation, intelligence, and customer experience. • Ensure compliance with coding standards, performance optimization, and platform best practices. • Troubleshoot, debug, and resolve issues within Client applications. Required Qualifications • 5+ years of hands-on development experience on the Client platform. • Strong expertise in Script Includes, Service Portal development, and UI Builder. • Proficiency in Client Scripting, JavaScript, HTML, CSS, and AngularJS, React for Client customizations. • Experience in ACL, Service Catalog, Flow Designer, Integration Hub, and Reporting/Dashboards. • Ability to work in Agile / Scrum methodology. • Excellent problem-solving skills with strong communication and collaboration abilities. Preferred Qualifications (Added Advantage) • Certified System Administrator (CSA).

Job Title: Senior Frontend Developer / Mobile Lead Employment Type: Full-Time ** Love greenfield mobile app development? We're hiring our first Mobile & Frontend Lead to architect and launch a brand-new cross-platform mobile app while leveling up our web platform. Huge impact, no bureaucracy. ** About Us We're representing a rapidly scaling SaaS platform that connects media professionals with the experts they need, helping power millions of articles and enabling smarter, faster communication. With strong revenue, a modern backend foundation already in place, and a high-performing engineering team, the company is now investing in a senior frontend specialist to lead its next major product evolution. Position Overview We're looking for a Senior Frontend Developer / Mobile Lead who can architect, build, and elevate the user-facing side of the platform. This person will drive the creation of the company's first mobile app, lead a full modernization of the web application, and set the long-term technical direction for all frontend development. This role is ideal for someone who loves React, cares deeply about UX, and enjoys mentoring engineers while remaining hands-on. Key Responsibilities • Architect and build a new cross-platform mobile app (iOS & Android) using React + Capacitor • Lead the rewrite and modernization of the web application with a component-driven React approach • Set coding standards, review code, and mentor frontend and full-stack engineers • Partner closely with design to deliver polished, accessible, responsive user experiences • Push UX excellence through performance tuning, animations, and clean interface design • Collaborate with backend engineering by consuming APIs, not building them Qualifications • 5+ years of deep experience with React and modern JavaScript/TypeScript • Proven history of shipping at least one iOS app as the primary architect (App Store link required) • Strong experience building cross-platform mobile apps (Capacitor preferred) • Skilled at turning designs into elegant, consumer-quality interfaces • Demonstrated ability to lead, mentor, and raise the bar for frontend engineering • Independent, highly self-directed, and able to take high-level requirements and run • Must be US-based; no sponsorship available Bonus Points For • Experience with PWAs, push notifications, or real-time interfaces • Familiarity with Algolia, Storybook, or modern CSS/UI component patterns • Experience with testing frameworks like Jest + React Testing Library Why Join Us? • First dedicated frontend/mobile leader - shape the entire client-side engineering vision • Zero backend context switching - pure frontend focus • High-impact role building consumer-grade experiences used daily by media professionals • Competitive compensation package ($190K-$220K), fully paid employee health insurance, 401(k), and strong PTO • Remote-first culture with a supportive, talented engineering and design team

Software Engineer Pay Range: $70-85/hour Onsite Expectation: Negotiable; ideally Tuesday and Thursday About the Role LHH is partnering with a leading client to identify an experienced Software Engineer for a short-term engagement. This role is ideal for a highly skilled engineer with strong native mobile development experience and backend expertise. You will contribute to critical services and integrations that power a fast-paced, innovative environment. Key Responsibilities Develop and maintain native mobile applications for iOS (Swift) and Android (Kotlin). Design and implement robust APIs, collaborating closely with backend engineers. Contribute to the core services and data aggregation layer, ensuring scalability, quality, and rapid iteration. Build high-quality integrations with internal services leveraging rich financial datasets. Partner with external teams to acquire new data and enhance user experiences. Drive automation across build, deployment, testing, monitoring, and data pipelines. Collaborate with front-end developers to deliver end-to-end solutions. Mentor and coach team members, fostering technical growth and best practices. Embrace Agile/Scrum methodologies and contribute to a collaborative team culture. What's Great About This Role Ownership of a critical component of the user experience. Opportunity to solve big, industry-changing problems. Work in a fast-paced, start-up-like environment within a major organization. Make a meaningful impact on improving the lives of millions of users. Required Skills & Experience Native Mobile Development: Proficient in Swift (iOS) and Kotlin (Android). Backend Expertise: Strong in Scala (primary language), with experience in Java or functional languages. Familiarity with API design, microservices architecture, and messaging patterns. Messaging Platforms: Experience with Kafka, RabbitMQ, Amazon SQS, or similar. Infrastructure & Deployment: Kubernetes and container technologies. Strong understanding of deployment strategies and production infrastructure. Core Technical Foundations: OOP, design patterns, algorithms, networking, and Linux OS. Web application internals and scalability across tiers. Database Skills: Proficiency in SQL, relational schema design, and ORM concepts. Additional: Minimum 5 years as a backend developer. Experience building large-scale, high-volume, testable systems. Soft Skills: Strong communication and leadership abilities. Ability to mentor and coach team members. Agile/Scrum experience. Additional Notes Candidate should be strong in native development and API design. Understanding of data structures is less critical. Reporting schedule may vary based on time zone; team members are located in Charlotte and Oakland. Benefit Offerings: Benefit offerings include medical, dental, vision, life insurance, short-term disability, additional voluntary benefits, EAP program, and 401K plan. Our program provides employees the flexibility to choose the type of coverage that meets their individual needs. Available paid leave may include Paid Sick Leave, where required by law; any other paid leave required by Federal, State, or local law; and Holiday pay upon meeting eligibility criteria. Equal Opportunity Employer/Veterans/Disabled To read our Candidate Privacy Information Statement, which explains how we will use your information, please navigate to ******************************************* The Company will consider qualified applicants with arrest and conviction records in accordance with federal, state, and local laws and/or security clearance requirements, including, as applicable: The California Fair Chance Act Los Angeles City Fair Chance Ordinance Los Angeles County Fair Chance Ordinance for Employers San Francisco Fair Chance Ordinance

Responsibilities: 70-85% hands-on software development across all SDLC phases. Conduct design and code reviews; create technical documentation. Contribute to our DevOps model. Estimate and sequence development activities. Analyze inputs to create software and services. Identify technical dependencies. Collaborate with engineers and architects. Qualifications: Experience with unit/integration/functional/e2e test automation. Advanced experience with Java , Spring Boot, Kafka, Kubernetes, GitHub, JUnit 4/5. Experience with Agile development methodologies (Scrum). Hands-on experience with AWS Experience with large-scale, distributed systems. Strong communication skills. Experience with debugging and monitoring tools

K&K Global Talent Solutions Inc is an International recruiting agency that has been providing technical resources in the USA region since 1993. This position is with one of our clients in The USA, who is actively hiring candidates to expand their teams. Role: Backend .Net Developer Employment type: Contract (Only W2) Technology: .Net, C#, React Location: Fremont, CA(Onsite) Job Description- The Insurance Claims Application team is seeking a Backend Software Engineer to contribute to the development of our Web App. These products are part of the advanced platforms for managing Service workflow for Vehicle, Insurance Claims and Energy products. The person will be responsible for building and maintaining full stack applications that support various use cases of service business. User interfaces are built with Angular , React and Typescript and are powered by highly performant backend distributed systems. The person will be working closely with our end users, focus on extensible design systems, and obsess over open-source quality solutions to create scalable applications. What You'll Do Contribute to the complete software development lifecycle for applications, ensuring that all projects are delivered on time and meet high-quality standards Design, develop, and maintain full stack web applications, utilizing .NET, C# Collaborate with cross-functional teams, including product managers, service engineers and other software engineers, to define and implement features that enhance operational efficiency for our customers Ensure that web applications integrate seamlessly with backend distributed systems and support real-time monitoring, control, and reporting Contribute to the definition and implementation of extensible design systems that prioritize scalability, maintainability, and exceptional user experiences Implement rigorous testing strategies, including unit, integration, and end-to-end testing, to guarantee the reliability and performance of applications under various conditions Actively maintain and promote the core values of the team, which include engineering excellence, curiosity, a bias for action, self-awareness, inclusivity, and vulnerability, contributing to a positive and productive team culture Drive initiatives from concept to completion, from defining the business need with product experts, to conducting user interviews, culminating in feature implementation What You'll Bring Degree in Computer Science or equivalent experience 5+ YOE as a Software Engineer with a strong focus on developing and delivering user-centric web applications using C#, .NET. Angular / React and TypeScript experience are a good addition Strong problem-solving skills, with a focus on delivering robust, reliable, and efficient solutions that meet customer needs and drive operational excellence Enthusiasm for staying at the forefront of technology trends and a commitment to continuous learning, particularly in the fields of renewable energy and sustainable technologies Maintain the values of the team which include engineering excellence, curiosity, a bias for action, self-awareness, inclusivity, and vulnerability Note: Applicants for employment in The USA should possess work authorization which does not require sponsorship by the employer for a visa

We have an immediate requirement for a Java Back End Developer with one of our clients in Pleasanton CA. is long term contract and onsite in Pleasanton CA work location. Key skills required: Java 8 and above, Microservices, Azure Cloud, Spring Boot, Kafka, REST APIs, Hibernate, JPA, Solr, Gradle, Shell Script, Groovy, Splunk, New Relic, Log4j, Git, Jenkins Responsibilities: Design and Develop client application modules in Microservices architecture on the Azure cloud platform using Java, Spring Boot, REST, Hibernate, and JPA. Design and develop solutions that are highly reliable, scalable, and meet business-defined services. Integrate client modules with other services using Kafka. Implement Flink and Kafka streaming modules in Java to streamline the batch process. Implement reactive programming and multi-threading techniques in the service layer to improve application performance. Set up Jenkins CI/CD process to auto-build the code merged into the git master branch and deploy the code into pre-prod environments. Configure Solr to index and search from server and application logs. Develop unit test cases in Groovy using the Grails framework. Set up alerts, notifications, and charts in the New Relic dashboard. Bachelor's degree or equivalent in Computer Science, Engineering (Any) or related field and 5 years of experience building scalable e-commerce applications.

3MK Software Solutions is the leading software service soltions provider and IT Staffing Supplier company, outsourcing and complex implementation services for the business across different functional areas and technologies with a core focus on software development and web designing development and GIS Software solutions and services. Our team is our core strength, we have selected the most skilled and talented specialists from the IT industry, and we continuously invest in developing their capabilities. The core management has many years of experience and has successfully leaded complex projects for major corporate in the field of healthcare, communication, retail and finance. During the term of these projects, the team had needed to develop an advanced implementation methodology. Job Description Hi Greetings from 3MK Software Solutions LLC !!! Hope you are doing Great today! Title: UI Developer/Front End Developer/Full Stack Developer with Mobile development and Touch interfaces AND AngularJS AND MVC AND SPRING AND (Mac OR Terminal) AND Node.JS (Not Mandatory) Note: Skype is available only for CITIZENS and GREEN CARDS, so we can search all over US H1's has to attend FACE TO FACE, so we need to look for local CA H1 consultants only. Location: Sunnyvale, CA Rate : Open/hr Client : Apple Qualifications: · Solid understanding of object-oriented programming (OOPS) · Extensive knowledge of model-view-controller (MVC) driven front end application development with one or more of UI frameworks such as Angular JS (preferred), JQuery, ExtJS etc. · Thorough understanding of synchronous vs. asynchronous calls · Solid understanding of the Web Application optimization, best practices in UI development · Excellent communication skills via email, instant messaging, conference calls, and in-person · Extensive knowledge with technologies such as Spring Boot, Spring, Hibernate, Spring MVC, Node.js (big plus) · Comfortable writing SQL queries, stored procedures, views, etc. · Skilled in REST/SOAP/XML web service integration, web security, JSON · Solid understanding of Software Design Patterns and SDLC · Experience with Mac OS and Terminal a plus · An eye for UX design a plus Experience: · Proficient in development using JSP, XML, SSO, Apache Tomcat/WebLogic and SQL(RDBMS)/NO SQL databases Please Fill the below Details and Send me back ASAP. Additional Information All your information will be kept confidential according to EEO guidelines.

Hello, Greetings from Jobsbridge! Jobsbridge, Inc. is a fast growing Silicon Valley based I.T staffing and professional services company specializing in Web, Cloud & Mobility staffing solutions. Be it core Java, full-stack Java, Web/UI designers, Big Data or Cloud or Mobility developers/architects, we have them all. Job Description Responsibilities Design, Implement, and Unit Test .Net solutions using MVC, Angular JS, and Entity Framework Work with Customer Support to resolve customer issues Experience designing and developing .Net software using the Microsoft MVC framework Experience with Angular or other Javascript front end frameworks Experience using Oracle and/or Microsoft SQL databases including complex queries, stored procedures and scripting. Strong communication skills written and verbal. Excellent teamwork skills and the ability to excel in a fast-paced and collaborative environment. Qualifications VB/C#.Net, HTML, JavaScript Additional Information Only GC/Citizen/OPT

What We Believe How we work is as important as what we build. Ownership is taken, not given. You'll thrive here if your work builds others' trust in your ability to identify, attack, and solve increasingly complex problems - including those no one has yet anticipated. Code wins arguments. We believe in prototyping early and often, and that shipping velocity compounds impact. We value speed and reflection. Some days, you'll push thousands of lines of code; others, you'll delete just as many after deep consideration. Failure is part of learning. You're not afraid to build systems that don't work out - because you know progress often comes from what we throw away. Intellectual honesty is non -negotiable. You love to learn, teach, ask questions, and share uncertainty openly. We embrace the new frontier. You're eager to explore how AI tools - including agents - can augment human creativity, collaboration, and craftsmanship. The Opportunity We are looking for a Full Stack Frontend Engineer to lead the development of high -performance, elegant, and intelligent user experiences for our AI -powered web applications. Reporting to the Director of ML & Platform Engineering, the Senior Frontend Engineer will collaborate closely with product, design, and AI research teams to bring cutting -edge ideas to life - building intuitive interfaces that redefine how people interact with intelligent systems. What you'll do Own end -to -end development of highly interactive, performant and elegant frontend experiences for our AI -powered web applications, from concept to production. Collaborate with product and design teams to translate ambiguous ideas into polished, user -friendly interfaces. Make thoughtful trade -offs between functionality, polish, and delivery speed - always ship features fast to validate user value quickly at the forefront. Set the standard for clean, maintainable, and scalable frontend architecture. Integrate AI capabilities into seamless, human -centered user interactions. Implement analytics and feedback loops to measure impact and guide iteration. Optimize performance and reliability through strong CI/CD practices and frontend testing frameworks. Evolve our design system and component library to ensure consistency, scalability, and rapid product development. Example Impact in First 30 Days Prototype an AI -assisted interaction pattern (e.g. inline agent suggestions, reasoning, errors, conversational shortcuts, or visualizations) and get it in front of users early. Reduce frontend load time by 40%. Establish frontend event tracking pipelines with clear naming conventions and dashboards. Refine design system/component library that accelerates product velocity across teams. Contribute to CI/CD pipeline to make it safer and faster to ship. What we're looking for Deep Frontend Expertise: Mastery of React, TypeScript, Next.js, TailwindCSS (or similar frameworks). Strong understanding of performance optimization, accessibility, and responsive design. Systems Thinker: Able to architect frontend systems that scale, modularize, and anticipate future needs. Understands the trade -offs between speed and structure - and knows when to optimize for each. AI Product Enthusiasm: Excited by AI -native interfaces, real -time interactions, and integrating LLMs or agentic workflows into user experiences. Eager to learn and experiment with new tools, pushing the boundaries of how people interact with intelligent systems. Speed & Impact: Proven ability to ship meaningful products quickly. Thinks analytically about product analytics and impact, instrumenting features to learn and iterate faster. Design Sensibility: A close collaborator with designers - someone who sweats the details of interaction, motion, and polish. Builds interfaces that are as delightful as they are functional. Additional Kudos if you have Full -Stack Fluency: Comfortable dipping into backend services (Node.js, python), databases and search indexes when needed. Startup DNA: You've scaled products fast and are eager to do it again. Bias for action, ownership, and curiosity. Thrives in ambiguity, takes initiative, and grows the scope of what you can own over time. Communicates clearly - in writing, in code, and in collaboration. Why Join Us? Opportunity to shape the frontend vision of cutting -edge AI products used by global customers. Small, senior team - work alongside exceptional engineers, product leaders, and AI researchers. High impact - every line of code you ship directly shapes the user experience. High ownership with growth opportunities. Competitive compensation including Benefits and Equity Package. Arrow BI and our clients are equal opportunity employers. We celebrate diversity and are committed to creating an inclusive environment for all innovators.

Established in 1991, Collabera has been a leader in IT staffing for over 22 years and is one of the largest diversity IT staffing firms in the industry. As a half a billion dollar IT company, with more than 9,000 professionals across 30+ offices, Collabera offers comprehensive, cost-effective IT staffing & IT Services. We provide services to Fortune 500 and mid-size companies to meet their talent needs with high quality IT resources through Staff Augmentation, Global Talent Management, Value Added Services through CLASS (Competency Leveraged Advanced Staffing & Solutions) Permanent Placement Services and Vendor Management Programs. Collabera recognizes true potential of human capital and provides people the right opportunities for growth and professional excellence. Collabera offers a full range of benefits to its employees including paid vacations, holidays, personal days, Medical, Dental and Vision insurance, 401K retirement savings plan, Life Insurance, Disability Insurance. Hope this message finds you well! This is Nanda with Collabera Inc. and this is in reference to your resume which was posted on one of the job portal. Please let me know of your interest and availability at this time to discuss the below job opportunity. Thank you! Job title : PHP Front end developer (Citizen and Green Card Holders are encouraged to apply) Job location : Sunnyvale, CA/ Atlanta, GA Duration: Long Term Job Description · Write highly scalable, low-latency code that ships to production daily through our automated pipeline. Fight to shave milliseconds off already blazing fast latencies. · Explore cutting-edge front-end technologies to stay innovative in a competitive marketplace. · Work with a passionate cross-functional team of product managers, designers, production engineers, developers, architects, and scientists to run one of the highest monetizing web applications on the planet. · You Must Have 3 or more years of experience building user experiences with web technologies · Expertise in JavaScript, HTML, and CSS Professional experience with PHP, Jenkins, and Git Outstanding programming, problem solving, and communication skills · Strong understanding of CS fundamentals and web architecture A passion for front end engineering Expertise in FE build tools and test frameworks highly desirable BS in Computer Science is preferred Additional Information To get further details or to apply for this position please contact: Soumyak Nanda ************ ******************************

WindBorne Systems is supercharging weather models with a unique proprietary data source: a global constellation of next-generation smart weather balloons targeting the most critical atmospheric data. We design, manufacture, and operate our own balloons, using the data they collect to generate otherwise unattainable weather intelligence. Our mission is to eliminate weather uncertainty, and in the process help humanity adapt to climate change, be that predicting hurricanes or speeding the adoption of renewables. We are building a future in which the planet is instrumented by thousands of our microballoons, eliminating gaps in our understanding of the planet and giving people and businesses the information they need to make critical decisions. The founding team of Stanford engineers was named Forbes 2019 30 under 30 and is backed by top investors including Khosla Ventures. You get to do every engineer's dream-push features for which you are the user. But first you must become the user! Unlike a traditional software engineering role, you will be directly involved in day-to-day meetings and decision-making related to flight automations, navigation and quality control. WindBorne Systems operates the world's largest constellation of autonomous weather balloons. We achieve full atmospheric coverage by manufacturing balloons at our headquarters in Palo Alto, and launching them from our 10 launch sites across the globe. Importantly, we only find out whether we're doing a good job when the balloon goes into the air. Although things like the balloon launch process and manufacturing revision systems may not seem directly relevant to flight, they are paramount to understanding flaws in our systems and subsequently propagating those flaws to the appropriate parties. In short, to become the best operations software engineer possible, you need to be armed with context and curiosity. This is fundamentally an operational role and one of your core responsibilities will be doing operational tasks. This job is not for if you want a chill job, or want to sit in a room by yourself and push code. To be good at this role, you must be a competent web developer. But to be great, you must be a holistic problem-solver. We capture huge amounts of information about our constellation through downlinked telemetry and our flight database. In this role, you'll be tackling the challenge of combining said data into a digestible and useful form. This can be through a new process, automation, abstraction, bugfix, quality of life change or even just a meeting. This is an opportunity to not only become a better software engineer, but also a better systems thinker, communicator and designer. In this role, you'll be given full ownership of load-bearing and mission-critical systems from day one-and live with the outcomes. If you want to grow fast, this is your shot. Responsibilities Serve as a web developer for our mission control dashboard Develop tools to facilitate manufacturing quality loop closure and improve flight performance Lean into chaos and immerse yourself in day-to-day operations Directly connect with our constellation of nearly 200 balloons Design systems that will scale from 200 to 10,000 balloons Interface directly with customers and fulfill real-time operational requests Preferred Skills Self-directed learning in ambiguous, low-structure environments Fundamentally curious problem-solver with bias towards action Strong work ethic and drive for constant improvement, balanced with the ability to work effectively in a team environment Ability to prioritize and execute tasks in a high-pressure, fast paced environment Excellent communication skills (oral and written) and the ability to clearly and concisely articulate complex problems to a wide variety of audiences Tech stack Ruby on Rails React Benefits 401(k) Dental insurance Health insurance Vision insurance Unlimited PTO Stock Option Plan Office food and beverages Salary $90,000-$130,000 *We are considering a range of backgrounds and experience levels for this position and will adjust our offers accordingly to be competitive with market rates. Location Palo Alto, CA, In person required.

Job Title: Senior Frontend Developer / Mobile Lead Employment Type: Full-Time ** Love greenfield mobile app development? We're hiring our first Mobile & Frontend Lead to architect and launch a brand-new cross-platform mobile app while leveling up our web platform. Huge impact, no bureaucracy. ** About Us We're representing a rapidly scaling SaaS platform that connects media professionals with the experts they need, helping power millions of articles and enabling smarter, faster communication. With strong revenue, a modern backend foundation already in place, and a high-performing engineering team, the company is now investing in a senior frontend specialist to lead its next major product evolution. Position Overview We're looking for a Senior Frontend Developer / Mobile Lead who can architect, build, and elevate the user-facing side of the platform. This person will drive the creation of the company's first mobile app, lead a full modernization of the web application, and set the long-term technical direction for all frontend development. This role is ideal for someone who loves React, cares deeply about UX, and enjoys mentoring engineers while remaining hands-on. Key Responsibilities • Architect and build a new cross-platform mobile app (iOS & Android) using React + Capacitor • Lead the rewrite and modernization of the web application with a component-driven React approach • Set coding standards, review code, and mentor frontend and full-stack engineers • Partner closely with design to deliver polished, accessible, responsive user experiences • Push UX excellence through performance tuning, animations, and clean interface design • Collaborate with backend engineering by consuming APIs, not building them Qualifications • 5+ years of deep experience with React and modern JavaScript/TypeScript • Proven history of shipping at least one iOS app as the primary architect (App Store link required) • Strong experience building cross-platform mobile apps (Capacitor preferred) • Skilled at turning designs into elegant, consumer-quality interfaces • Demonstrated ability to lead, mentor, and raise the bar for frontend engineering • Independent, highly self-directed, and able to take high-level requirements and run • Must be US-based; no sponsorship available Bonus Points For • Experience with PWAs, push notifications, or real-time interfaces • Familiarity with Algolia, Storybook, or modern CSS/UI component patterns • Experience with testing frameworks like Jest + React Testing Library Why Join Us? • First dedicated frontend/mobile leader - shape the entire client-side engineering vision • Zero backend context switching - pure frontend focus • High-impact role building consumer-grade experiences used daily by media professionals • Competitive compensation package ($190K-$220K), fully paid employee health insurance, 401(k), and strong PTO • Remote-first culture with a supportive, talented engineering and design team

Software Engineer Pay Range: $70-85/hour Onsite Expectation: Negotiable; ideally Tuesday and Thursday About the Role LHH is partnering with a leading client to identify an experienced Software Engineer for a short-term engagement. This role is ideal for a highly skilled engineer with strong native mobile development experience and backend expertise. You will contribute to critical services and integrations that power a fast-paced, innovative environment. Key Responsibilities Develop and maintain native mobile applications for iOS (Swift) and Android (Kotlin). Design and implement robust APIs, collaborating closely with backend engineers. Contribute to the core services and data aggregation layer, ensuring scalability, quality, and rapid iteration. Build high-quality integrations with internal services leveraging rich financial datasets. Partner with external teams to acquire new data and enhance user experiences. Drive automation across build, deployment, testing, monitoring, and data pipelines. Collaborate with front-end developers to deliver end-to-end solutions. Mentor and coach team members, fostering technical growth and best practices. Embrace Agile/Scrum methodologies and contribute to a collaborative team culture. What's Great About This Role Ownership of a critical component of the user experience. Opportunity to solve big, industry-changing problems. Work in a fast-paced, start-up-like environment within a major organization. Make a meaningful impact on improving the lives of millions of users. Required Skills & Experience Native Mobile Development: Proficient in Swift (iOS) and Kotlin (Android). Backend Expertise: Strong in Scala (primary language), with experience in Java or functional languages. Familiarity with API design, microservices architecture, and messaging patterns. Messaging Platforms: Experience with Kafka, RabbitMQ, Amazon SQS, or similar. Infrastructure & Deployment: Kubernetes and container technologies. Strong understanding of deployment strategies and production infrastructure. Core Technical Foundations: OOP, design patterns, algorithms, networking, and Linux OS. Web application internals and scalability across tiers. Database Skills: Proficiency in SQL, relational schema design, and ORM concepts. Additional: Minimum 5 years as a backend developer. Experience building large-scale, high-volume, testable systems. Soft Skills: Strong communication and leadership abilities. Ability to mentor and coach team members. Agile/Scrum experience. Additional Notes Candidate should be strong in native development and API design. Understanding of data structures is less critical. Reporting schedule may vary based on time zone; team members are located in Charlotte and Oakland. Benefit Offerings: Benefit offerings include medical, dental, vision, life insurance, short-term disability, additional voluntary benefits, EAP program, and 401K plan. Our program provides employees the flexibility to choose the type of coverage that meets their individual needs. Available paid leave may include Paid Sick Leave, where required by law; any other paid leave required by Federal, State, or local law; and Holiday pay upon meeting eligibility criteria. Equal Opportunity Employer/Veterans/Disabled To read our Candidate Privacy Information Statement, which explains how we will use your information, please navigate to ******************************************* The Company will consider qualified applicants with arrest and conviction records in accordance with federal, state, and local laws and/or security clearance requirements, including, as applicable: The California Fair Chance Act Los Angeles City Fair Chance Ordinance Los Angeles County Fair Chance Ordinance for Employers San Francisco Fair Chance Ordinance

Skill CSS,Javascript,UI,JQuery,MVC,API,Bootstrap,FrontEnd,JSON,HTML5,JSP,SAS,Servlet,Spring Total Experience 8 yrs. Max Salary $ DOE Per Hour Employment Type Contract Jobs (Temp/Consulting) Job Duration 12Months+ Description Multiple Positions: Highly skilled at front-end engineering using CSS, Object-Oriented JavaScript, various JavaScript libraries and micro frameworks (jQuery, Angular, Kendo UI). • Must have a very good understanding of advanced JavaScript and core JQuery concepts and API. • More than 8 years of experience in using core JavaScript and more than 5 years in using JQuery core API. • Proficient in latest JavaScript trends like MVC / MVVM and managing UI flows using MVC. • More than 2 years of experience in one of Angular MVC or Kendo MVVM. • Proficient in handling JSON and complex JSON manipulation using JavaScript/JQuery and/or Angular/Kendo. • More than 8 years of experience in CSS. Candidate must be able to write and manage complex styles for a web application and create a reusable CSS framework to manage styles. Suggest and make improvements in the current CSS code. Be able to work with the team in enforcing CSS standards on a day-to-day basis. • More than 3 years of experience using Bootstrap and designing responsive and mobile friendly UI using Bootstrap. • Candidate must have a genuine interest and be aware of the latest technological developments in CSS (CSS3, LESS, SAS). • More than 3 years of experience in using HTML5. • Proficient in handling cross browser issues with JS and CSS. • Knowledge of JavaScript testing frameworks like Jasmine, QUnit etc is good to have. Qualifications CSS,Javascript,UI,JQuery,MVC,API,Bootstrap,FrontEnd,JSON,HTML5,JSP,SAS,Servlet,Spring Additional Information Multiple Openings

Established in 1991, Collabera has been a leader in IT staffing for over 22 years and is one of the largest diversity IT staffing firms in the industry. As a half a billion dollar IT company, with more than 9,000 professionals across 30+ offices, Collabera offers comprehensive, cost-effective IT staffing & IT Services. We provide services to Fortune 500 and mid-size companies to meet their talent needs with high quality IT resources through Staff Augmentation, Global Talent Management, Value Added Services through CLASS (Competency Leveraged Advanced Staffing & Solutions) Permanent Placement Services and Vendor Management Programs. Collabera recognizes true potential of human capital and provides people the right opportunities for growth and professional excellence. Collabera offers a full range of benefits to its employees including paid vacations, holidays, personal days, Medical, Dental and Vision insurance, 401K retirement savings plan, Life Insurance, Disability Insurance. Qualifications Position Details: Title: Front End Developer Location: Sunnyvale, CA Duration: 6 month (may extend) Major Responsibilities: • Responsible for designing and leading the implementation of the underpinning UI framework for future applications • Work closely with UX designers, product owners and back-end engineers to implement awesome user experience • Convert UX requirements into high quality HTML/JS/CSS Technical /Professional Skills & Competencies: • 4+ years of experience encompassing all aspects of dynamic front end web development • Strong front-end development skills, experience with JavaScript libraries/frameworks beyond just jQuery (e.g., Knockout, Ember, AngularJS, Backbone, GWT) • Experience working with server side JavaScript Frameworks and build tools (node.js, bower, grunt, gulp) • Demonstrable experience developing large-scale applications using one or more MV* patterns (MVVM, MVC, MVP) • Experience with CSS preprocessors (e.g., Sass, LESS) Additional Information To know more about this position please contact; Monil Narayan ************

Expert level knowledge of and experience in common web front-end technologies (HTML5, CSS3, JavaScript, Ajax). Use jQuery, but not rely on it Craft optimized CSS with LESS or SASS Experience developing application using open source templating languages like Handlebars, Dust, Mustache or similar Experience developing application in NodeJS Knowledge of developing application in Java/JSP Recognize opportunities to optimize all of your front end code. You should have an opinion on the direction your projects go and be able to back that opinion up with data. You should be able to distill and prioritize the requirements of others and understand how these requirements fit in with the overall product. 5+ years of software design and development experience, solid foundation in computer science with strong competencies in data structures, algorithms, and software design Knowledge of cross-browser, cross-platform, and design constraints on the web. Additional information: What is needed: Front-end UI engineer for front-end client side development Must haves: HTML5, CSS, JavaScript Jquery Qualifications HTML5 CSS3, JavaScript, AJAX Additional Information Multiple Openings

Established in 1991, Collabera is one of the fastest growing end-to-end information technology services and solutions companies globally. As a half a billion dollar IT company, Collabera's client-centric business model, commitment to service excellence and Global Delivery Model enables its global 2000 and leading mid-market clients to deliver successfully in an increasingly competitive marketplace. With over 8200 IT professionals globally, Collabera provides value-added onsite, offsite and offshore technology services and solutions to premier corporations. Over the past few years, Collabera has been awarded numerous accolades and Industry recognitions including. Collabera awarded Best Staffing Company to work for in 2012 by SIA. (hyperlink here) Collabera listed in GS 100 - recognized for excellence and maturity Collabera named among the Top 500 Diversity Owned Businesses Collabera listed in GS 100 & ranked among top 10 service providers Collabera was ranked: 32 in the Top 100 Large Businesses in the U.S 18 in Top 500 Diversity Owned Businesses in the U.S 3 in the Top 100 Diversity Owned Businesses in New Jersey 3 in the Top 100 Privately-held Businesses in New Jersey 66th on FinTech 100 35th among top private companies in New Jersey *********************************************** Collabera recognizes true potential of human capital and provides people the right opportunities for growth and professional excellence. Collabera offers a full range of benefits to its employees including paid vacations, holidays, personal days, Medical, Dental and Vision insurance, 401K retirement savings plan, Life Insurance, Disability Insurance. Job Description Position Details: Title: Front End Developer Duration: 6 month (may extend) Location: Sunnyvale, CA Responsibilities: • Responsible for designing and leading the implementation of the underpinning UI framework for future applications • Work closely with UX designers, product owners and back-end engineers to implement awesome user experience • Convert UX requirements into high quality HTML/JS/CSS • Design and build scalable framework for web applications. Technical /Professional Skills & Competencies: • 4+ years of experience encompassing all aspects of dynamic front end web development • Strong front-end development skills, experience with JavaScript libraries/frameworks beyond just jQuery (e.g., Knockout, Ember, AngularJS, Backbone, GWT) • Experience working with server side JavaScript Frameworks and build tools (node.js, bower, grunt, gulp) • Demonstrable experience developing large-scale applications using one or more MV* patterns (MVVM, MVC, MVP) • Expertise in developing single page web applications using front-end routing, consuming JSON-based RESTful APIs, client-side templating • Strong competency in responsive layouts leveraging CSS and media queries and related UI frameworks (e.g., Bootstrap, Foundation) • Experience with CSS preprocessors (e.g., Sass, LESS) • Experience with code analysis tools (e.g., JSLint, JSPerf) Additional Information To know more about this opportunity or to schedule an interview, Please Contact: Monil Narayan ****************************** ************