Mika Pesonen
Senior Software Engineer
Welcome to my online portfolio! I'm originally from Finland, but I moved to California to marry the love of my life and continue my career in software development. I enjoy building systems that handle a lot of data, run efficiently, and scale well. Over the years, I’ve worked with cloud services, APIs, and databases, solving challenges in everything from IoT integrations to real-time data processing. I like making things run smoother, whether that means optimizing backend performance, automating workflows, or improving how data moves between systems. At the end of the day, I just enjoy solving problems and building things that work well. On this site you'll find highlights of my career, achievements and projects that showcase my skills and experience. If you're curious how this site was built, both the front-end and back-end code are available on GitLab. Feel free to explore how it all comes together. Here are some things you can do here:
Recent Projects
- Portfolio website with an AI chatbot
Combined resume and project portfolio. The very site you are currently browsing.
- Sigfox LPWAN Integration
Automated ETL pipeline that extracted data from the Sigfox back-end, processed and matched it with sensors, and loaded it into a database. This solution enabled seamless onboarding through device ID registration on a web portal.
Core Skills
JavaScript/TypeScriptPythonAmazon Web ServicesAzureDockerKubernetesHelmTerraformPostgreSQLMySQLRedisETLNode.jsRESTAzure Function AppsAWS LambdaTechnical WritingMentoringClient CommunicationAgileScrumIoTMQTT