Senior Software Engineer

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

Role overview

This is a senior individual-contributor role focused on building and evolving the systems behind an agentic software development experience. The work spans the agent harness, integrations, and the workflows that connect agents with real development environments. You will stay hands-on while partnering closely with product, design, and other engineers to ship reliable, production-grade agentic capabilities.

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.

Requirements

• Strong experience building and operating production software systems at scale.
• Hands-on experience with Go for backend development.
• Experience with React and TypeScript on the frontend.
• Practical experience building systems around LLMs or agentic workflows.
• Familiarity with model APIs, tool calling, context management, or agent loops.
• Solid understanding of distributed systems and production reliability practices.
• Working knowledge of AWS.
• Strong problem-solving skills and comfort navigating technical ambiguity.
• A collaborative mindset, contributing through reviews, mentorship, and knowledge sharing.

Nice to have

• Experience building coding agents, developer tools, or cloud development environments.
• Familiarity with MCP, agent tools, or multi-agent system patterns.
• Background in remote execution, sandboxing, or isolated compute.
• Experience integrating across multiple model providers.
• Working with Kubernetes, Docker, or Linux.
• Open-source contributions or experience working directly with customers.

Benefits and work setup

• Tech stack includes Postgres, Prometheus, Grafana, and GitHub Actions alongside the core languages above.
• Interview process designed to be transparent and typically completed within two to four weeks.

Equal opportunity employer with a stated commitment to non-discrimination across protected categories.