Relixir
Role:
Founding Full Stack Engineer Location:
In-person, SF Stack:
Next.js, TypeScript, FastAPI, PostgreSQL, AWS (ECS, Fargate), LLM APIs What Youll Work On Frontend Platform: Architect and ship core product surfaces with
Next.js Typescript Design and implement high quality user experiences for complex state / data patterns Deliver fast and clear data visualizations for millions of data points from various sources Backend Infrastructure: Building features in
Python
(FastAPI) with
PostgreSQL
as our primary database. Managing AWS infrastructure primarily
ECS/Fargate , Lambda, S3, and related services. Designing APIs for the frontend (TypeScript) and partner integrations. Working on AI (LLM-powered) features end-to-end The ROLE You are
not
just an employee you are a builder of the company. Youll be at the core of shaping Relixirs product, technology, and trajectory from hands-on full-stack development, to collaborating on the big decisions that define our future. Strategic Impact
Work directly with the founders to influence technical and product direction, deciding how we scale our platform and what bets we make in AI search automation. End-to-End Ownership
Take ideas from rough concepts to production-ready systems UI/UX, frontend components, APIs, LLM usage, and everything in between. Youll own critical features and ensure theyre fast, reliable, and a joy to use. Customer-Driven Development
Talk to customers, dig into their needs, and turn feedback into technical solutions that directly impact their growth. About You Deeply Curious
You actively seek to understand complex systems, customer problems, and the latest technical possibilities. Curiosity drives your best work. Relentlessly Driven
You thrive in early-stage chaos. You move quickly, test bold ideas, and turn uncertainty into working solutions. True Owner
You dont just complete tickets. You take full responsibility for delivering outcomes finding a path forward even with incomplete information. Collaborative & Humble
You share ideas openly, listen actively, and care more about the best solution than being right. Youre confident in your skills but always learning. Must-Haves In-person SF High-agency 1-3 years of experience building frontend & backend software for VC-backed startups Leveraged LLMs for building critical product features Strong proficiency in Next.js, Typescript, and Python Have completed at least one 0 -> 1 journey of a functional product Nice-to-haves: Entrepreneurial Mindset: Ex-founder or future founder AWS Infrastructure Management Timescaledb or any OLAP experience Qdrant/RAG, LangChain/LLM tooling, prompt/eval experience. Why This Role is Special
Youll be part of the
founding team
shaping the product, culture, and technical foundation of a YC-backed startup already working with 50 enterprise customers. Youll have
ownership
own UI/UX quality, API/DB design, and performance end-to-end. Shipping features that surface insights and actions from millions of AI-search data points each week.
#J-18808-Ljbffr
Founding Full Stack Engineer Location:
In-person, SF Stack:
Next.js, TypeScript, FastAPI, PostgreSQL, AWS (ECS, Fargate), LLM APIs What Youll Work On Frontend Platform: Architect and ship core product surfaces with
Next.js Typescript Design and implement high quality user experiences for complex state / data patterns Deliver fast and clear data visualizations for millions of data points from various sources Backend Infrastructure: Building features in
Python
(FastAPI) with
PostgreSQL
as our primary database. Managing AWS infrastructure primarily
ECS/Fargate , Lambda, S3, and related services. Designing APIs for the frontend (TypeScript) and partner integrations. Working on AI (LLM-powered) features end-to-end The ROLE You are
not
just an employee you are a builder of the company. Youll be at the core of shaping Relixirs product, technology, and trajectory from hands-on full-stack development, to collaborating on the big decisions that define our future. Strategic Impact
Work directly with the founders to influence technical and product direction, deciding how we scale our platform and what bets we make in AI search automation. End-to-End Ownership
Take ideas from rough concepts to production-ready systems UI/UX, frontend components, APIs, LLM usage, and everything in between. Youll own critical features and ensure theyre fast, reliable, and a joy to use. Customer-Driven Development
Talk to customers, dig into their needs, and turn feedback into technical solutions that directly impact their growth. About You Deeply Curious
You actively seek to understand complex systems, customer problems, and the latest technical possibilities. Curiosity drives your best work. Relentlessly Driven
You thrive in early-stage chaos. You move quickly, test bold ideas, and turn uncertainty into working solutions. True Owner
You dont just complete tickets. You take full responsibility for delivering outcomes finding a path forward even with incomplete information. Collaborative & Humble
You share ideas openly, listen actively, and care more about the best solution than being right. Youre confident in your skills but always learning. Must-Haves In-person SF High-agency 1-3 years of experience building frontend & backend software for VC-backed startups Leveraged LLMs for building critical product features Strong proficiency in Next.js, Typescript, and Python Have completed at least one 0 -> 1 journey of a functional product Nice-to-haves: Entrepreneurial Mindset: Ex-founder or future founder AWS Infrastructure Management Timescaledb or any OLAP experience Qdrant/RAG, LangChain/LLM tooling, prompt/eval experience. Why This Role is Special
Youll be part of the
founding team
shaping the product, culture, and technical foundation of a YC-backed startup already working with 50 enterprise customers. Youll have
ownership
own UI/UX quality, API/DB design, and performance end-to-end. Shipping features that surface insights and actions from millions of AI-search data points each week.
#J-18808-Ljbffr