Backend Software Engineer Fast-growing software

# Backend Software Engineer Fast-growing software company
* Location New York
* Type Full-time
* Posted
13 October 2026

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The role, as published## About the company

Our client is a fast-growing software company.## The role Raydar is recruiting for this role on behalf of our client. Build and own backend infrastructure for automated software agents, including the tooling that measures their quality and keeps them dependable in production. Work alongside field-facing engineers to turn repeated deployment issues into shared platform features.## What you'll do
* ** Build and maintain core
** infrastructure for agents that automate browser and desktop tasks, including tool use, state handling and retry behavior.
* ** Create measurement and monitoring
** systems that show how well agents perform, explain their decisions and flag quality regressions.
* Experiment with and ship better approaches to how agents plan, act, retain context, check their work and recover from errors.
* ** Own backend services and long-running workflow orchestration**, including APIs, background jobs and event-driven systems in a Type Script monorepo.
* Collaborate with customer-facing engineers to convert recurring field problems into shared platform features and internal tooling.
* ** Design clean abstractions
** and reusable building blocks that let agents operate safely across many different external systems.## What we're looking for
* ** 4+ years
** of software engineering experience, with deep Type Script backend and production infrastructure expertise.
* Strong command of at least one statically typed language.
* Solid grounding in API design, relational databases and ORMs.
* A history of building dependable, scalable platforms while moving quickly.
* Experience at a company with a high technical bar, or early-stage 0-to-1 or founder experience.
* A computer science degree is preferred; other backgrounds considered with 4+ years at a company with a high technical bar.
* Daily use of AI-assisted coding tools in your workflow.## Bonus points
* Experience embedded with customers as an engineer, or shipping products built on large language models.
* Background in regulated or compliance-heavy settings.
* Experience with document processing, retrieval, data extraction or multimodal AI.
* Familiarity with workflow orchestration tools, browser automation frameworks, or cloud infrastructure and containers.
* Experience with Postgres and a Type Script ORM.
* Relocation support## Location and work model
* New York City, NY, United States
* On-site
* Full-time## Compensation, as the posting describes it
* Equity Pay $150k to $230kUSD base a year