Staff Software Engineer, Agentic Systems

Coder; Poland; On-site; PLN 260,000 - 380,000; Full time

Job summary

Coder is seeking a Staff Software Engineer on the Agentic Engineering team to shape the systems behind our agentic development experience. You’ll stay hands-on while setting the team’s technical direction and lead complex work from early ambiguity through production.

You’ll design production systems in Go and collaborate across React/TypeScript, evolve agent execution, and extend provider-agnostic architecture as models change. Join us to mentor others and raise the bar in reliability.

Qualifications

• Proven experience building and operating production software systems.
• Strong hands-on experience with Go.
• Experience with React and TypeScript.
• Hands-on experience building systems around LLMs and agentic workflows.
• Experience with model APIs, tool calling, context management, or agent loops.
• Strong distributed systems knowledge.
• Working knowledge of AWS.
• Track record of setting technical direction without formal authority.

Responsibilities

• Set technical direction across the agent harness, integrations, and workflows.
• Design and build production systems in Go, with work across React and TypeScript where needed.
• Evolve agent execution, tool use, context management, streaming, and long-running workflows.
• Extend our provider-agnostic architecture as models and capabilities change.
• Lead complex projects from early ambiguity through production.
• Raise the engineering bar through design reviews, code reviews, and technical mentorship.
• Partner with Product and Design on clear, useful agent experiences.
• Improve the reliability, performance, and operability of agentic systems.

Skills

Go

React

TypeScript

LLMs

Agentic workflows

Distributed systems

AWS

Architectural direction

Mentorship

Tools

PostgreSQL

Kubernetes

Docker

Job description

Coder is seeking a Staff Software Engineer on the Agentic Engineering team to shape the systems behind our agentic development experience. You’ll stay hands-on while setting the team’s technical direction and lead complex work from early ambiguity through production.

You’ll design production systems in Go and collaborate across React/TypeScript, evolve agent execution, and extend provider-agnostic architecture as models change. Join us to mentor others and raise the bar in reliability.