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Sievo
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 doLead the Center of Excellence: guide both the frontend community and the wider engineering org as we shift to AI-native software development. You'll set the standards that make this feel natural: prompt engineering practices, clear repository boundaries, and automated code mods that keep quality high as development accelerates.
Harden the Autonomous Platform Foundation: Take our early-stage frontend architecture to production, establishing a highly performant monorepo structure, efficient local development setups, and automated CI/CD pipelines optimized for rapid development loops.
Co-create the Design System: Partner directly with Product Design to launch a token-driven, highly composable component library from scratch, establishing automated design-to-code synchronization and deterministic component behaviors that make UI assembly foolproof for AI agents.
Enable Product Team Autonomy: Design a self-service platform infrastructure, including instant preview environments, and isolated local development workspaces, that allows feature teams to independently test and deploy their workloads end-to-end.
Engineer the LLM Context Layer: Design and maintain the repository's semantic context layer, including structured markdown rules, machine-readable architectural manifests, and tight end-to-end TypeScript types, ensuring AI coding tools possess perfect context of system boundaries.
Our salary range for a Lead Software Engineer is between 6200-7000 EUR, and we are open to discussing higher compensation for particularly senior profiles.
Why you'll love this roleTrue Architectural Ownership: This is a rare, greenfield opportunity to design a modern frontend ecosystem exactly the right way from its earliest stages, without the burden of heavy legacy code.
High-Leverage Impact: Your work directly builds the daily working environment and foundation for dozens of engineers, meaning every foundational decision you make has a massive compounding effect on organizational velocity.
Shape the Future of Work: You will define how our organization safely transitions to an AI-native engineering model from the start, designing the abstractions that keep quality high as development cycles accelerate.
People-First Culture: We actively invest in keeping developer friction low, minimizing technical debt, and ensuring our platform engineers have the time and space to solve foundational engineering problems correctly.
What it's like working at SievoYou’ll get to build the leading procurement analytics software that helps a rapidly growing number of Fortune 500 and other largest companies across the globe to understand and optimize their spend and supply chain.
One of the coolest offices in the heart of Helsinki – or if you prefer, a flexible hybrid working model. We also provide all essential tools to work remotely.
Freedom and responsibility. We are looking for people who yearn for this freedom, can make the most out of it and are willing to take on the responsibility.
International team members coming from over 40 nationalities.
Awesome perks including equity program, extensive healthcare, phone plan, home internet connection, referral bonus, and many more!
We would love to hear from you!
Please send us your application with the CV. We would love to learn about your strengths and what excites you about this opportunity. We will review applications as they come in. The position will be filled as soon as we find the right candidate.
Meet SievoWe are Sievo – a fast-growing Software-as-a-Service company from Finland. Our unique superpower is called procurement analytics. We are the global leaders in our space and help the largest companies in the world to understand their procurement data, make data-driven decisions, reduce emissions, drive supply chain resilience, and beyond! Each year, we process over 2% of the world’s total spend.
Pretty cool, right?
At Sievo, we’re powered by smart and kind people from all over the world. Our 440+ Sievonians are based in Helsinki, Chicago, Bucharest and the UK.At Sievo, we celebrate and support differences and strive to create a culture where everyone feels valued and included.
As an Equal Opportunity Employer, we do not discriminate against any individual in hiring or employment based on gender, gender identity or expression, age, ethnic or national origin, nationality, language, religion or belief, opinion, disability, state of health, sexual orientation, or other personal reasons.
Studies indicate that women are more hesitant to apply for a job and tend to feel their qualifications do not align perfectly with the role. If you're interested in the position and believe that you have the potential to excel in it, we encourage you to apply.
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