Backend Engineer (Full Stack / React)
The Giant Bullseye
Backend Engineer We are seeking a Backend Engineer with strong full-stack capabilities and hands-on React experience to help design, build, and scale modern digital platforms. This role primarily focuses on backend development while contributing to front-end features as needed. The ideal candidate enjoys solving complex problems, working collaboratively, and delivering scalable, high-performance applications. Key Responsibilities Design, develop, and maintain scalable backend services, APIs, and system integrations. Collaborate with frontend engineers to deliver end-to-end features, contributing to React-based UI development when required. Write clean, secure, and maintainable code following industry best practices. Design data models, optimize database queries, and work with both relational and non-relational databases. Contribute to system architecture, participate in code reviews, testing, and deployment activities. Monitor application performance, troubleshoot production issues, and implement reliability improvements. Work closely with product managers, designers, and cross-functional teams to deliver customer-centric solutions. Qualifications Bachelor's degree in Computer Science, Engineering, or equivalent practical experience. 3–5 years of professional experience in backend engineering with exposure to full-stack development. Strong proficiency in server-side technologies such as Node.js, Python, Java, or similar frameworks. Experience building RESTful APIs, GraphQL services, and working with microservices architectures. Solid knowledge of databases such as PostgreSQL, MySQL, MongoDB, or equivalent. Hands-on experience with React.js, including hooks, component architecture, and state management. Familiarity with cloud platforms (AWS, GCP, or Azure) and modern DevOps practices. Strong understanding of Git workflows, CI/CD pipelines, and Agile development methodologies. The Giant Bullseye
$160k - $300k
...our mission is to revolutionize how engineering decisions are made, turning complexity... ...the Role As a Senior / Staff Backend Engineer at Apiphany, you’ll design,... ...Skills Frontend experience with React/TypeScript (full-stack exposure) Infrastructure familiarity...FullstackReactWork at officeVisa sponsorshipFlexible hours- PLEASE CLICK HERE TO SEE *ALL* OF OUR JOB OPENINGS!Senior Full Stack Engineer (Backend)As a Senior Full-Stack Engineer, you'll be a key player in... ...JavaScript/TypeScript and modern frontend frameworks like React.Proficiency in backend development using Node.js and Python...FullstackReactCasual workWork at office
$200k - $230k
Backend Engineer San Francisco, CA About Fellow We believe that the act of making should... ...This is a rare opportunity to own the full device-to-cloud stack for physical products used in... ...libraries such as Express.js, NestJS, React, or Next.js. Experience designing and...FullstackReactSummer workWork at officeLocal areaRemote work- ...important bet at the company.As a Senior Full Stack Engineer for Rippling AI, you'll own meaningful... ...initiatives end-to-end — from backend infrastructure to the user-facing surfaces... ...Proficiency in modern frontend frameworks (React/TypeScript) with a strong sense for building...FullstackReactWork at office3 days per week
- ...Product TeamThe HR Product Engineering team is the... ...features with an emphasis on backend logic, API development,... ...implementation.Work across the stack, focusing on API design... ...user interface.Own the full development lifecycle... ...technologies like React/TypeScript.Prioritize projects...FullstackReactWork at office3 days per week
- ...security, and scale are critical.As a Senior Backend Engineer, you’ll design and build the services,... ...-facing features, working across the stack to make them shineOwn the design and implementation... ...in frontend development with React or typescript.Exposure and hands on experience...FullstackReactWork at office3 days per week
- ...HR Product TeamThe HR Product Engineering team is the foundational layer... ...doDevelop and improve both product backend capabilities and user-facing features, working across the stack to make them shineCollaborate... ...in frontend development with React or typescript.Exposure and...FullstackReactWork at office3 days per week
- ...looking for a Staff Software Engineer to join our Time and Attendance... ...maintainable, and high-performance backend systems that power critical... ...decisions and guide the full product lifecycle, from ideation... ...Frontend Knowledge: Experience with React or JavaScript is a plus....FullstackReactWork at office3 days per week
- ...Product TeamThe Financial Product Engineering team is at the forefront of... ...and improve both product backend capabilities and user-facing features, working across the stack to make them shineCollaborate... ...in frontend development with React or typescript.Exposure and hands...FullstackReactWork at office3 days per week
- ...healthcare software startup to find an experienced Staff Software Engineer (Full-Stack, Backend-Focused). This hybrid role in San Francisco offers the... ...will build end-to-end product features using TypeScript, React, PostgreSQL, and AWS Lambda. You will design scalable...FullstackReactTemporary workFor contractors
- ...recommendations, payments, and a benefits eligibility engine), our rapidly expanding Benefits... ...architectural decisions, and managing the full product delivery lifecycle.Design for the... ...Experience with Golang, Java, Django, or React is a plus.Solid Computer Science Foundations...FullstackReactTemporary workWork at officeWorldwide3 days per week
- Fullstack Backend Engineer Location: Mountain View / San Diego/ Plano Texas/ Atlanta / New York/ SFO-Any Intuit office twice a week Duration... ...and complex client-facing web applications using JavaScript, React, HTML5 and CSS3. Familiarity with back-end technologies (Java...FullstackReactWork experience placementWork at officeFlexible hours
- ...questions.It's a complete data stack including data... ...promptsTransformations: full publish access Pipelines... ...- Owns the query engine (RQL, Rippling Query Language... ...improve both product backend capabilities and user-facing... ...development with React or typescript.Exposure...FullstackReactWork at office3 days per week
$180k - $220k
...(Remote) DarrenCaddle is looking for Senior backend software developers to help support and grow... ...serverless technologies to power a Javascript/React frontend. Candidates should have strong experience developing full-stack web applications. Regularly collaborate with...FullstackReactRemote jobHome office$158k - $200k
...founder of Lever. Our AI researchers, engineers, and designers have worked at Google,... ...the Role We’re looking for a Full-Stack Engineer (Backend-leaning) to design and build the systems... ...scalable backend services, TypeScript & React for frontend development, and Python...FullstackReact- We want a full stack engineer to join our team as our third engineer. You are passionate to use those... ..., and triggering events [Python + React] - Internal, web-based patient management... ..., web-based dashboard [Node + React] - Backend services to integrate with pharmacy switches...FullstackReact
$175k - $225k
TITLE: Sr. Full Stack Software EngineerENVIRONMENT: Fintech, HealthcareLOCATION: San Francisco... ...for a Senior Full Stack Software Engineer with 4-12 years of experience to join a... ...directionBuild full-stack features across React and Node.js powering payments, claims, and...FullstackReactWork at office- ...looking for a Senior Fullstack Software Engineer to join our team, passionately focused on... ...of industry experience working as a Full Stack EngineerBachelor's or Master's degree with... ...with modern Javascript frameworks (e.g., React, AngularJS, Vue)Familiarity with server-...FullstackReactWork at officeLocal areaRemote work
$161k - $230k
...use their benefits.We’re looking for a Full Stack Software Engineer to own broad product surfaces, from... ...You’ll build across the frontend and backend systems that power onboarding, benefits... ...on Rails for backend systems.React and TailwindCSS for the frontend.Small...FullstackReact- ...is looking for highly capable engineers to own and lead engineering... ...with 3+ years of experience in full-stack development roles. Strong... ...but not limited to JavaScript, React, Node.js, Python. Experience... ...experience with both frontend and backend development, including API...FullstackReactWork at office
$230k - $275k
...into structured, LLM-ready data. This hands-on growth engineering position combines full-stack product development with experimentation and measurable... ...experiments. · Develop production full-stack experiences using React, TypeScript, Next.js, and Node.js. · Use product...FullstackReactSecond jobRelocation package$145k - $217k
Job DescriptionSenior Full Stack Engineer, Solve VoiceJoin us at Zendesk, where we're on a mission to power exceptional service for every person... ...AI-driven support.What you’ll be doingDesign and implement backend services powering real-time voice conversations, focusing on...FullstackFull timeRemote work- ...AI startup in San Francisco to hire a Full Stack AI Engineer with strong zero-to-one product-building... ...comfortable working across frontend, backend, infrastructure, and AI systems. You... ...oneDevelop modern frontend applications using React, Next.js, or similar technologiesBuild...FullstackReactLive inWork at officeLocal areaRemote workRelocation
- CoffeeSpace is recruiting a founding Full-Stack Engineer to join a small, high-impact team in San Francisco. You will ship agentic systems... ...lawyers use daily, building from PostgreSQL and Node.js backend to React/Next.js frontend, and crafting integrations with Slack, email...FullstackReact
$160k - $200k
...difference.Job DescriptionAbout the role:We are looking for a full stack engineer who is passionate about catching fraud. We build AI products... ...of experience in Python/Go/Rust.3+ years of experience with React and Material UIExperience in building and managing distributed...FullstackReactFull timeHome office$140k - $260k
Substack is building a new economic engine for culture, giving the brightest, most interesting... ...TypeScript, especially Node/Express and React, and Postgres. It’s helpful if you know... ...market competitive salary, equity for all full time roles, and exceptional benefits. Our...FullstackReactFull time$163k - $246.5k
...at semgrep.dev.About the roleAs a Backend Engineer, you’ll work on our backend and infrastructure... ...into existing first-party code.Our stack utilizes Typescript and React on the Frontend, Python, Flask and... ...to formal methods research and full-fledged corporations. We’re new...ReactCurrently hiringWork at officeLocal areaRemote workWeekend work3 days per week$202k - $262k
...shaping product direction and building full-stack features. You will help modernize how public... ...insights. Lead a small product engineering pod, setting technical direction and mentoring... ...experience with TypeScript, Node.js, React, Tailwind CSS, Postgres data modeling, and...FullstackReactVisa sponsorship- ...within the new Forward Deployed Engineering team, taking the evolution of our... ...years of professional, hands-on full-stack development experience with languages... ...such as JavaScript, TypeScript, React, Ruby, Go, or JavaExperience with backend infrastructure and building...FullstackReact
$194k - $267k
...behavior and system data to proactively hunt down and neutralize risks before they impact our customers.Join an elite team of full-stack engineers, visionary data scientists, and pioneering ML engineers. We are not just redefining cloud authentication—we are engineering...FullstackPermanent employmentLocal areaRemote workWorldwideFlexible hours
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