Agentic AI Engineer: Build, Orchestrate & Evaluate Agents

Renessai; Helsinki; Hybrid; EUR 90,000 - 120,000; Full time

Job summary

Renessai is seeking an AI Software Engineer focused on the agentic layer of our systems. You will design, build, and orchestrate agentic workflows with tools, context, memory, and planning, and decide when to use agents vs deterministic software.

You will set up evaluations to measure quality against cost, improve the development workflow with agents and subagents, and work closely with clients to deliver reliable AI-native software.

Qualifications

• Hands-on experience building agentic systems: tool design, context, memory, planning, orchestration.
• Practical experience building and running AI evaluations, and the judgement to weigh quality against cost.
• Daily fluency with coding agents (Claude Code, Codex, Cursor, or similar) that goes well past prompting: skills, subagents, parallel runs, and a working sense of what to delegate and what to verify yourself.

Responsibilities

• Build agentic workflows: tool design, context, memory, planning, and orchestration for multi-agent setups where appropriate.
• Decide where the agent ends and deterministic software begins; balance agent use with reliability.
• Design guardrails and human oversight for production systems focusing on cost, scalability, and trustworthiness.

Skills

Agentic systems

AI evaluations

Coding agents

Consulting mindset

Client-facing

Tools

Claude Code

Codex

Cursor

Azure

GCP

AWS

Job description

Renessai is seeking an AI Software Engineer focused on the agentic layer of our systems. You will design, build, and orchestrate agentic workflows with tools, context, memory, and planning, and decide when to use agents vs deterministic software.

You will set up evaluations to measure quality against cost, improve the development workflow with agents and subagents, and work closely with clients to deliver reliable AI-native software.