Arvid Berndtsson

I founded LimeTip and developed an API that automates the real-time validation of VAT numbers, enabling companies to reduce manual work and manage tax thresholds more efficiently and securely. - Developed an API that processes over 1,000 daily requests and runs reliably under load. - Work closely with customers to tailor the solution to their actual workflows. - Built the infrastructure from scratch, with a strong focus on security, authentication, and logging that’s actually used.

As a TA at Malmö University, I support students in navigating programming and web development courses. - Lead labs, workshops, and lectures in areas like Python, web services, and secure coding. - Guide students through practical assignments and coach them on writing stable, secure code. - Assist with grading and give constructive feedback.