We believe energy should be better.

We’re on a mission to make a big green dent in the universe by building a truly sustainable energy system globally.

That means making power greener, smarter, and more affordable for everyone.

We put customers at the heart of everything we do: with always-fair prices, transparency and outrageous customer service.

We drive system change: with transformative tech to make renewable energy the norm and end global reliance on fossil fuels.

Kraken is part of Octopus Energy Group, which is made up of 10 businesses spanning 14 countries across 4 continents, including: Octopus Energy Retail, Kraken Technologies, Octopus Energy Generation, Octopus Energy Hatchery, Kraken Flex, Kraken Utilities, Octopus Electric Vehicles, Octopus Energy for Business, Octopus Energy Services, and the Octopus Centre for Net Zero.

Our team

All technology is written and maintained by a multi-discipline engineering team. This includes server-side, client-side and electrical engineering-side.

We follow a Kanban-like approach, using Notion and Asana to specify and manage work; Github, AWS Code Deploy and Cloudformation as part of an immutable-infrastructure, continuous delivery pipeline; and Cloudwatch to measure performance and monitor production.

Engineering standards are high. We pair program, thoroughly review and test code before it deploys, and maintain fast, high-value test suites. We have weekly tech talks, monthly blitz-days (eg sharpening our internal tools, upgrading dependencies). Kraken is a great place to learn, work with some talented engineers and level-up your skills.

Our Japan office is a mix of native English and Japanese speakers (with the majority speaking some level of English).

Flexible working environment

We’re passionate about a genuine work-life balance here and we don’t pay people to watch a clock. Need to catch that school nativity or work from home? That’s cool.

We are proud to say we were voted in the top 5 companies in the UK for work life balance in 2020, we treat you as a human, and do our best to make work and life merge smoothly together.

Equity Option Scheme

Everyone owns part of what we’re building with shares.

When you become a Kraken employee, you will be included in our Equity Options Scheme. This means that you own your own part of the business, so when the business grows, you can reap the rewards!

It’s just another motivation for us to work together towards success.

Award winning workplace

Octopus Energy Group has a unique culture. An organisation where people learn, decide, and build quicker. Where people work with autonomy, alongside a wide range of amazing co-owners, on projects that break new ground. We want your hard work to be rewarded with perks you actually care about! We won best company to work for in 2022, on Glassdoor we were voted 50 best places to work in 2022 and our Group CEO, Greg has recorded a podcast about our culture and how we empower our people


Remote Work

While you’ll be able to work from home part of the time, we’re looking for you to come into the office at least a couple of times per week.


We’re all grown ups, so we don’t count your holidays here. We work hard and so we know you need to play hard as well (within reason of course).

Open Jobs at Kraken

Developer stories

Polly Sutcliffe came to Japan on the JET programme. After working as a translator, she pivoted her career through a coding bootcamp. Now she's a frontend developer at Kraken, where she works on their consumer-facing portal.

Read her story...

Jos is a senior software engineer and team lead of the payments and collections team at Kraken. He is also a line manager and a tech lead. Jos tells us about the environment at Kraken, what his job involves, and what makes working there so rewarding.

Read his story...