Backend Engineer

MyJunior AI•New York, NY

2d•Onsite

About The Position

As a Backend Engineer, you’ll 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. As one of our first engineering hires, you'll 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

Requirements

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: Next.js, TypeScript, PostgreSQL
Feel like you are never building fast enough

Nice To Haves

Retrieval/embeddings/prompt orchestration
Built internal infrastructure / dev tools @ startups

Responsibilities

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.