Janne Puhakka

Full-stack development of www.veroni.fi, a tax optimization SaaS web application. Own front-end development, back-end services, testing, QA, and DevOps end-to-end. Design and maintain CI/CD pipelines with automated testing integrated into workflows. Develop internal company tools and integrations including an invoicing system supporting e-invoicing plus PDF and paper billing flows, legacy database and feature integration into the Veroni application, admin tools for customers to track status of their paid/unpaid invoices, and workflows to create and send sales offers to current and potential customers.

Front-end development of Veroni, owning UI architecture, implementation, and long-term maintainability. Maintained high UX standards and accessibility/intuition for end users. Implemented end-to-end test automation with Cypress covering critical user flows and enabling automated regression testing. Built and maintained the product website including SEO. Contributed to Veroni calculation engine development (WASM, C++). Provided product support for customers.

Developed Profit Hunter, a tax optimization software product (discontinued when Veroni was released). Performed code refactoring, handled annual regulatory updates, improved runtime performance, and worked on UI/UX development.