Senior Full Stack Engineer, Gen AI

Rocket Money (formerly Truebill)

full-time

Posted on: 10/1/2025

Location Type: Remote

Location: Remote • California, District of Columbia, New York • 🇺🇸 United States

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💰 $150,000 - $200,000 per year

Senior

AWSCloudGraphQLNode.jsPostgresSQLTypeScript

About the role

Spend approximately half of your time on LLM-driven work: crafting, refining, and evaluating prompts; designing and iterating RAG/data retrieval strategies; building prompt/response evaluation frameworks; and ensuring the quality and safety of model outputs.
Spend the other half building and scaling backend services in TypeScript/Node (GraphQL, PostgreSQL/pgvector, AWS) to serve, secure, and monitor our AI-powered user experiences.
Own features end-to-end: from technical design through implementation and infrastructure to monitoring.
Collaborate with product, design, and data teammates to transform user challenges into effective conversational solutions—rapidly iterating based on real-world feedback.
Stay on top of the latest GenAI research, open-source tooling, and best practices—advocating and implementing relevant innovations.
Contribute to team quality through code reviews, architecture discussions, and mentorship.

6+ years as a professional software engineer, with a strong focus on backend TypeScript/Node and SQL-based systems.
Demonstrated hands-on experience with large language models—spanning personal projects, prototypes, open-source, or production—including prompt engineering, model evaluations/benchmarks, and understanding of RAG workflows.
Solid SQL/data modeling skills, ideally with exposure to PostgreSQL (extra credit for pgvector).
Experience with or enthusiasm for LLM infrastructure tools such as LangFuse and LiteLLM, as well as cloud-based deployment (AWS preferred).
You’re passionate about GenAI and actively experiment with new models, evaluation tools, and AI workflows in your own time.
Self-driven, communicative, and motivated to deliver impactful solutions in a fast-moving, highly collaborative environment.

Benefits

Tip: use these terms in your resume and cover letter to boost ATS matches.

TypeScriptNode.jsSQLPostgreSQLpgvectorprompt engineeringmodel evaluationdata retrieval strategiesbackend servicesRAG workflows

self-drivencommunicativemotivatedcollaborativementorshipproblem-solvingadaptabilityfeedback iterationtechnical designquality assurance