Onsite AI Agent Harness Engineer — Ship to Production

Viktor; Warszawa; On-site; PLN 220,831 - 331,247; Full time

Job summary

Viktor in Warsaw is looking for an AI Engineer to build and support AI agents, handling integrations and infrastructure. The ideal candidate will ship products rapidly and work closely with the founders.

Applicants should have experience in AI agent development and strong coding fluency in TypeScript and Python.

This is an onsite position that values rapid deployment and ownership of projects.

Qualifications

• Experience in building or modifying AI agents and understanding trade-offs.
• Ability to close the loop with tests and verifiers.
• Experience with tools for faster agentic coding.

Responsibilities

• Build and ship the agent runtime and integrations.
• Run infrastructure and handle cost per task.
• Product features that engage users immediately.

Skills

AI agent development

Agentic coding

Systems thinking

TypeScript

Python

React

Job description

Viktor in Warsaw is looking for an AI Engineer to build and support AI agents, handling integrations and infrastructure. The ideal candidate will ship products rapidly and work closely with the founders.

Applicants should have experience in AI agent development and strong coding fluency in TypeScript and Python.

This is an onsite position that values rapid deployment and ownership of projects.