Juha Wilppu

Engineering Manager

I lead engineering teams, and I still write code myself with React, Node.js, PostgreSQL and AWS. 14 years shipping production systems in demanding domains like healthcare and finance.

I take full ownership in everything from idea to production: shaping requirements, making trade-offs and delivering results. I prefer simple solutions and avoid unnecessary complexity until it adds value.

If you'd like to get in touch, send a message.

Juha Wilppu

Selected work

Provet patient portal

Architected and built a veterinary booking platform from scratch. The platform has grown to 21,000+ weekly bookings (4.6/5 user satisfaction). End-to-end ownership from requirements through AWS infrastructure, CI/CD, observability and production monitoring.

2025–present
my.provet.com

Nordhealth.fi

Owned the system's security, performance and AWS architecture. Solved the most complex technical challenges and shaped key product decisions during development.

2023–2025
nordhealth.fi

Siikli

Founder & developer. In daily production use since 2017 with €13M+ invoiced through the system. Designed and built the entire product end-to-end and maintained it in production use for years.

2017–present

Skills

React TypeScript Node.js PostgreSQL AWS Terraform Playwright Grafana PostHog

Articles

Certifications

AWS Certified Solutions Architect – Professional

AWS Certified Solutions Architect – Professional

Amazon Web Services, 2025
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