Member of Technical Staff, Full Stack
Fireworks AI is hiring a Member of Technical Staff, Full Stack for a remote role open to applicants in United States. It pays $175k-$220k a year and Level rates it ; you can apply on Fireworks AI.
Level's read on this job
- On Level's scale, this role is Builds AI ●●●●: the job is building AI systems.
- The posting lists this role as remote.
- Tools and skills the posting cites include LangChain, LlamaIndex and PyTorch.
- Level classifies it as a senior role.
- Level lists 90 other open roles at Fireworks AI.
AI in this role
Architect and scale the developer-focused web application and model playground for an AI platform company.
About Us:
Fireworks is the platform for specialized intelligence, enabling companies to build, train, and serve AI models tailored to their own data, workflows, and products. Founded by the team behind PyTorch and backed by AMD, Atreides, Benchmark Capital, Index Ventures, Lightspeed, NVIDIA, Sequoia Capital, and TCV, Fireworks powers production AI with hundreds of state-of-the-art open models across text, image, embedding, audio, and multimodal workloads. Today, Fireworks is a Series D company valued at $17.5 billion, bringing together an ambitious, collaborative team that's building the future of enterprise AI.
The Role
We are looking for a Full Stack Software Engineering to architect, build, and scale our developer-focused web application (fireworks.ai) and shape our end-to-end technical architecture. This role blends hands-on engineering with technical leadership, offering the opportunity to mentor other engineers, collaborate cross-functionally, and drive innovation in a fast-paced, AI-focused environment.
You'll play a key role in delivering scalable, elegant, and highly performant solutions that directly impact our hundreds of thousands of developers and product vision. You will be directly shaping and shipping the most optimal developer journey—spanning intuitive front-end interfaces, robust APIs, and efficient backend orchestration—combined with our large offering of open-source generative AI models, enabling our users to seamlessly build, experiment, and ship their AI workflows with our playground.
Key Responsibilities
End-to-End Ownership: Engineering ownership of fireworks.ai from the user interface down to the API and data layer, with a strong focus on a delightful developer journey.
Product-Led Growth: Participate in the team’s shared accountability for product-led growth through the web application, model playground, and seamless user onboarding workflows.
Full Stack Development: Design, develop, and test responsive, performant web applications alongside robust, scalable backend services and APIs.
Leadership & Mentorship: Mentor and support a team of full stack, frontend, and backend engineers through code reviews, pair programming, and ongoing technical coaching.
Architectural Excellence: Define and implement full stack architectural standards, API design best practices, database schemas, and modern development workflows.
Cross-Functional Collaboration: Partner with Product, Design, and Core AI/Infrastructure Engineering to align on requirements, system design, timelines, and delivery expectations.
Systems & Components: Build and maintain reusable, scalable frontend component libraries while ensuring backend services are modular and easily integrated.
Unified Developer Experience: Partner with other engineering teams to build an aligned developer journey across web, SDK, and CLI surfaces.
Quality & Performance: Champion application performance, security, data integrity, and accessibility across the entire software stack.
Innovation: Drive innovation by staying informed of emerging full stack trends, cloud-native technologies, and AI orchestration frameworks.
Minimum Qualifications
Education: Bachelor’s degree in Computer Science or a related field, or equivalent practical experience.
Experience: 6+ years of professional experience in full stack software development.
Leadership: 2+ years of experience in a technical leadership role (e.g., tech lead, team lead, or engineering manager).
Frontend Proficiency: Strong expertise in React, TypeScript, JavaScript, and Next.js.
Backend Proficiency: Strong expertise in building server-side applications, designing RESTful or GraphQL APIs, and working with modern backend languages (e.g., Node.js, Python, Go).
Data Management: Solid understanding of database systems (SQL/NoSQL), caching strategies, and data modeling.
Track Record: Proven track record of delivering and scaling production-grade, full stack web applications.
Architecture & Devops: Experience with modern cloud infrastructure (AWS, GCP, or OCI), containerization (Docker), and full stack CI/CD pipelines.
Preferred Qualifications
AI/ML Domain Knowledge: Experience working in AI/ML-focused environments, or interacting with LLM APIs, vector databases, and model orchestration tools (e.g., LangChain, LlamaIndex).
Startup Agility: Prior startup experience—especially as a technical founder or early engineer—is a major plus.
People Growth: Experience managing or mentoring other engineers, including providing performance feedback and supporting career development.
Developer Tooling: Prior experience building developer platforms, SaaS dashboards, or complex interactive environments like playgrounds and sandboxes.
Open Source: Contributions to open-source projects, internal component libraries, or developer tools.
Why Fireworks?
Solve Hard Problems: Tackle challenges at the forefront of AI infrastructure, from low-latency inference to scalable model serving.
Build What’s Next: Work with bleeding-edge technology that impacts how businesses and developers harness AI globally.
Ownership & Impact: Join a fast-growing, passionate team where your work directly shapes the future of AI—no bureaucracy, just results.
Learn from the Best: Collaborate with world-class engineers and AI researchers who thrive on curiosity and innovation.
Fireworks AI is an equal-opportunity employer. We celebrate diversity and are committed to creating an inclusive environment for all innovators.
How we rate this
Member of Technical Staff, Full Stack at Fireworks AI rates 85 out of 100 for how much of the daily work is AI. That makes it Builds AI (AI Level 4 of 4). The level is about AI in the job, not seniority.
Builds AI. The job is building AI systems.
- ●●●● Builds AI80 to 100
- ●●●○ Works on AI60 to 79
- ●●○○ Uses AI40 to 59
- ●○○○ Little AI0 to 39
Levels come from how often the tools, models and workflows of the role are named in the posting itself. Read the description and count the AI tools, models and workflows it names.
Prepare for this job
Built from this posting and from similar jobs on Level.
Skills and AI tools this role asks for
Questions you could be asked
- Tell me about a project where full stack development was part of your work. What did you do?
- Tell me about a project where api design was part of your work. What did you do?
- Tell me about a project where web development was part of your work. What did you do?
- What's a project where you used LangChain hands-on?
- Walk me through how you've used LlamaIndex in your day-to-day work.
Adapt your resume
- List these exact terms on your resume: Full Stack Development, API Design, Web Development, LangChain, and LlamaIndex. An applicant tracking system matches the wording, not the idea.
- Attach one line of real, concrete experience to at least one of them. A tool named with nothing behind it rarely survives a human read.
- Lead with what you built, trained or shipped. This role is judged on the AI system itself, not the tools around it.
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