About Haikku
Engineering Practical Solutions for Finnish Businesses
Haikku Ilo Arosuo is an independent IT consultant and software engineer based in Helsinki, Finland. With a focus on practical architecture and reliable execution, Haikku helps small to medium-sized businesses modernise legacy applications and ship new products without unnecessary complexity.
Consulting 2026
Practice Established
Haikku launched independent consulting in 2018 after years in enterprise software development.
02
50th Integration Shipped
Crossed fifty production API integrations for Finnish retail and service businesses by 2021.
03
Cloud Modernization
Expanded focus into European cloud compliance, micro-services, and database tuning by 2024.
Today in 2026
Continuous Delivery
Modern engineering teams frequently encounter overly complicated agency workflows that inflate costs and delay critical releases. My practice centers on direct collaboration between client and developer, ensuring every architectural decision serves a direct business goal.
Pragmatic Engineering
Technical decisions prioritize business practicality and system stability over trendy, unproven technologies.
Direct Communication
You talk directly with the engineer executing your tasks, receiving concise progress updates every sprint.
Long-Term Maintainability
Every software deliverable ships with clear documentation, clean modular code, and automated tests.
Engineering Background
Delivering software and infrastructure expertise with Nordic precision and technical rigor.
Haikku Ilo Arosuo
Freelance IT Consultant & Software Engineer
I've spent over eight years building production backend systems, connecting APIs, and helping Finnish businesses resolve complex performance bottlenecks — working solo, directly with every client.