Member of Technical Staff- Full Stack

Fireworks; San Mateo (CA); On-site; USD 180,000 - 240,000; Full time

Job summary

Fireworks is seeking a Senior Full Stack Software Engineer to architect, build, and scale fireworks.ai, delivering a delightful developer journey from UI to API and data layers.

You will mentor engineers, define architecture, and collaborate across Product, Design, and Core AI/Infrastructure teams to ship scalable, high-performance solutions in a fast-paced AI environment.

Qualifications

• BS in Computer Science or equivalent practical experience.
• 6+ years in full stack development.
• 2+ years in technical leadership (lead/manager).
• Strong React/TypeScript/JavaScript and Next.js proficiency.
• Experience designing RESTful or GraphQL APIs.
• Knowledge of SQL/NoSQL databases and data modeling.

Responsibilities

• Own end-to-end development of fireworks.ai user journey and APIs.
• Lead and mentor a team of engineers; review code and coach peers.
• Design scalable frontend components and robust backend services.
• Collaborate with Product, Design, and AI/Infrastructure to align on timelines.
• Define architectural standards and CI/CD workflows.
• Ensure performance, security, and accessibility across the stack.

Skills

React

TypeScript

JavaScript

Next.js

RESTful APIs

GraphQL APIs

Data Modeling

Leadership

Full Stack Ownership

Education

Bachelor's degree in Computer Science

Tools

AWS

GCP

OCI

Docker

CI/CD

Job description

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.