Senior Software Engineer, Agentic Systems & DevTools

coder

United States

On-site

USD 180,000 - 230,000

Full time

14 days+

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Job summary

Coder is seeking a Senior Software Engineer to build and evolve the systems behind our agentic development experience. You will work across the agent harness, integrations, and workflows that connect agents with real development environments.

You’ll stay hands‑on, solve complex technical problems, and collaborate with Product, Design, and other engineers to ship reliable agentic experiences.

Qualifications

Strong experience building and operating production software systems.
Hands‑on experience with Go.
Experience with React and TypeScript.
Experience building systems around LLMs or agentic workflows.
Familiarity with model APIs, tool calling, context management, or agent loops.

Responsibilities

Design and build production systems in Go, with work across React and TypeScript where needed.
Improve agent execution, tool use, context management, streaming, and long-running workflows.
Extend our provider-agnostic architecture as models and capabilities change.
Build reliable integrations between agents, workspaces, tools, and developer infrastructure.
Own projects from implementation through rollout and iteration.
Contribute to design reviews, code reviews, and technical discussions.
Partner with Product and Design to turn agent capabilities into useful developer experiences.
Improve the reliability, performance, and operability of agentic systems.

Skills

React

TypeScript

LLMs

Agentic workflows

AWS

Distributed systems

Code reviews

Collaboration

Problem solving

Job description

You’ll stay hands‑on, solve complex technical problems, and collaborate with Product, Design, and other engineers to ship reliable agentic experiences.

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