Software Engineer I

We are looking for a Software Engineer to join the Kapacity.io team at EnergyHub! Our team, made up of YC alumni (S21) and elite product and software talent, builds some of the most advanced flexibility solutions in the market. Kapacity.io focuses on the European energy market, offering an energy management platform to energy companies, allowing them to connect residential heat pumps, EVs and batteries to a Virtual Power Plant. EnergyHub is the leading residential Virtual Power Plant provider in North America, with over 2.5 million connected residential devices. Join us in building high impact solutions for energy grid flexibility. If you’re a growth minded individual who has a passion for tech and energy, this team is for you! Here’s what you’ll do... Design, build, and maintain the software that sits at the core of Kapacity.io’s optimization products. Become a core contributor to our codebase, actively participating in work planning, retrospectives, and overall team improvement. Work directly with sales, translating business needs into viable technical solutions. We use Go, React, Typescript, Python, Django, PostgreSQL and Docker. We’re on AWS and communicate on Slack. Here’s what we’re looking for... We’re seeking a Software Engineer with 2+ years of experience developing and deploying production-quality software with experience in UI / UX development. Experience with UI / UX, Typescript, Javascript, Go(lang), python, docker, AWS, Relational Databases (Postgresql). Strong written and verbal communication skills in English. Ability to work regularly at our office in Helsinki. While we allow work remotely, we work together at the office to increase our speed and execution. Other duties as assigned. Interest in energy, power markets and HVAC will help you on your journey with Kapacity.io. What we offer you... Join an agile, growth-minded team led by ex-YC founders, backed by EnergyHub’s 200+ multinational workforce. We use Slack, Google, AWS, Zoom and Claude Code. An environment with a lot of responsibility and independence Thrive with ample career development opportunities while making a global impact. Occupational healthcare provided in accordance with Finnish law. Annual leave in accordance with the Finnish Annual Holidays Act.

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