Senior Backend Engineer
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Job Location:
New York City, NY - USA
Monthly Salary:
Not Disclosed
Posted on:
30+ days ago
Vacancies:
1 Vacancy
Department:
Job Summary
About Junior
Were building cutting-edge LLM-powered tools that supercharge investment research for the worlds most demanding deal teams. Our clients include several of the top 10 global private equity firms Big 4 professional services firms and leading consulting practices: organisations responsible for deploying billions of dollars annually.
Were a profitable bootstrapped company with a growing team of 28 people based in London and New York. We 10xd our revenue in 2025 and are on track to grow 2-3x again this year. Junior saves clients an average of 10 hours per week and were expanding fast into new verticals including investment banking hedge funds and research firms.
Role Description
As a Backend Engineer youll help build and scale the systems that power our AI-driven research platform. This is a systems-level role - ideal for engineers who love thinking about data flows orchestration and performance across complex distributed systems.
Youll have the unique opportunity to:
Ship quickly
Architect and scale backend systems that support high-throughput LLM interactions vector search and multi-agent orchestration.
Stitch together AI infrastructure across model providers data stores and internal APIs to create cohesive performant systems.
Own reliability and observability helping us evolve our database (Postgres / ClickHouse) and job orchestration systems.
Prototype new backend capabilities (retrieval pipelines caching layers async task queues) that let us build faster and smarter.
Shape our engineering culture
About You
Were looking for product-minded backend engineers who:
Based in NYC ***we are 5 days a week in person
Are excited by the intersection of AI infrastructure and systems design
Have experience leading projects end-to-end
Are eager to contribute to product decisions
Are proficient in our tech stack: TypeScript PostgreSQL
Feel like you are never building fast enough
Bonus points for experience working on:
Retrieval/embeddings/prompt orchestration
Built internal infrastructure / dev tools @ startups
Benefits
All the usual benefits (competitive pay and equity private healthcare etc). Unusual benefits:
Gym membership
In-office cook
Summers working in Greece by the beach
How to Apply
If youre excited about the opportunity to drive innovation at Junior wed love to hear from you! Email us at with your resume and a brief introduction. We cant wait to meet you!
Required Experience:
Senior IC
