Sievo

Lead Software Engineer, Frontend Platform Team

📍 Location
helsinki, uusimaa
⏰ Job Type
Full-time
📅 Posted
June 05, 2026
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Job Description

About the role

As the Lead Software Engineer for our Frontend Platform team , your mission is to build a production‑ready frontend ecosystem engineered from the ground up for autonomous and AI‑assisted software development. This is a greenfield role where you will scale our early‑stage architecture into a robust production environment and establish our core design system from scratch.

Instead of building a traditional developer platform solely for human engineers, you will design a highly deterministic repository structure, runtime abstractions, and strict architectural guardrails. Your primary goal is to ensure that AI agents have the high‑fidelity context, type safety, and safety nets they need to safely ship high‑performance UI features for our 5+ product engineering teams. You will head our Frontend Center of Excellence, redefining what it means to build software when AI is the primary author.

What you’ll do

  • Lead the...

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