Senior Software Engineer, Agentic Platform

Coder; Ireland; On-site; EUR 90,000 - 150,000; Full time

Job summary

Coder is seeking a Senior Software Engineer for the Agentic Engineering team 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 will stay hands-on, solve complex technical problems, and collaborate with Product, Design, and other engineers to ship reliable agentic experiences.

Qualifications

• Production software system experience required.
• Hands-on Go development experience.
• Experience with React and TypeScript.
• Experience with LLMs or agentic workflows.
• Familiar with model APIs, tool calling, context management, or agent loops.
• Understanding of distributed systems and production reliability.
• Working knowledge of AWS.
• Strong problem-solving and collaboration.

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

Go

React

TypeScript

LLMs / agentic workflows

Model APIs / tool calling / context mg

Distributed systems

AWS

Problem solving / collaboration

Tools

Postgres

AWS

Kubernetes

Docker

GitHub Actions

Job description

Coder is seeking a Senior Software Engineer for the Agentic Engineering team 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 will stay hands-on, solve complex technical problems, and collaborate with Product, Design, and other engineers to ship reliable agentic experiences.