Senior Software Engineer, Agentic Systems

coder; United States; Remote; USD 140,000 - 230,000; Full time

Benefits offered by this job

Coding agent experience

Developer tools usage

Cloud development environments

Kubernetes experience

Open-source contributions

Job summary

coder is seeking a senior individual-contributor to build and evolve the systems behind an agentic software development experience. You will work on the agent harness, integrations, and workflows that connect agents with real development environments, staying hands-on while partnering with product, design, and other engineers to ship reliable capabilities.

Design and build production systems in Go, with React/TypeScript on the frontend; improve agent execution, context management, and

Qualifications

• Experience building and operating production software systems at scale.
• Hands-on Go backend development.
• Frontend work with React and TypeScript.
• Experience with LLMs or agentic workflows.
• Knowledge of distributed systems and production reliability.
• Working knowledge of AWS.
• Strong problem-solving and collaborative mindset.

Responsibilities

• Design and build production systems primarily in Go, with adjacent work in React and TypeScript where needed.
• Improve agent execution, tool use, context management, streaming, and long-running workflows.
• Extend a provider-agnostic agent architecture as new models and capabilities appear.
• Build reliable integrations that connect agents, workspaces, tools, and underlying developer infrastructure.
• Own projects end-to-end, from implementation through rollout and iteration.
• Contribute to design reviews, code reviews, and broader technical discussions.
• Partner with product and design to translate agent capabilities into useful developer experiences.
• Improve the reliability, performance, and operability of agentic systems in production.

Skills

Go backend

React/TypeScript frontend

LLMs/agent workflows

Distributed systems

AWS

Collaboration

Tools

Kubernetes

Docker

Postgres

Prometheus

Grafana

GitHub Actions

Job description

coder is seeking a senior individual-contributor to build and evolve the systems behind an agentic software development experience. You will work on the agent harness, integrations, and workflows that connect agents with real development environments, staying hands-on while partnering with product, design, and other engineers to ship reliable capabilities.

Design and build production systems in Go, with React/TypeScript on the frontend; improve agent execution, context management, and