Backend Developer

Tokyo, JP /
Kraken Technologies Japan / 勤務地:東京 🇯🇵 – Tech /
Full-time
Help us make a big green dent in the universe. We're on a mission to drive the global renewable energy revolution, and we need loads more people to help us make our vision a reality.

Our team
All technology is written and maintained by a multi-discipline engineering team of around fifty people. This includes server-side, client-side and mobile engineers working closely with UX experts, copywriters and designers.
We follow a Kanban-like approach, using Google docs and Asana to specify and manage work; Github, CircleCI and Terraform Enterprise as part of an immutable-infrastructure, continuous delivery pipeline; and Loggly, Sentry 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) and can often be found at tech meet-ups and conferences.
Our coding conventions are open-source and we maintain a tech blog.

Octopus is a great place to learn, work with some talented engineers and level-up your skills.

Our technology
On the server-side, we mainly use Python. Most of our websites are powered by Django and the Django-REST-framework. We also use Pandas, Numpy and Jupyter for analysis and forecasting, plus Celery, RabbitMQ, SQS and Airflow for background processing.

We use AWS heavily, employing most of the "Hashistack" (eg Packer, Consul, Terraform) as part of a continuous deployment pipeline. See, for example, Django, ELB health checks and continuous delivery.

Client-side, we use React, Redux and SASS; our mobile apps are built using React Native.

What you'll do

    • We have lots of difficult design challenges to solve. The Japanese energy market is complicated, outdated and process-heavy - there's an awful lot of domain modelling that we need to get right. Strong attention to detail is essential.
    • We have difficult technical problems to solve. With the advent of smart meters, we'll soon be processing millions of meter readings a day. We need the right technology in place to handle this smoothly as well as feeding data into a machine learning pipeline that models and predicts consumption.
    • There's a great opportunity for disruption in the Japanese energy market. The energy landscape is changing as we move to more dis-aggregated forms of generation, with less predictability, more dynamism and smarter technology. Octopus Energy were the first UK supplier to introduce a "tracker" tariff whose prices track the daily wholesale prices: http://www.cleanenergynews.co.uk/news/efficiency/octopus-offers-transparency-with-wholesale-price-tariff
    • You'll be working for a company that’s fighting climate change. Our parent company is the largest investor in solar generation in the UK, and are funding wind and anaerobic digestion. As a supplier, we're helping people to use greener technology and renewable energy, all helping move the UK towards a lower carbon future.

What you'll have

    • We're looking for someone with a general interest in technology and problem-solving; someone diligent and thoughtful. It would be helpful to have experience/expertise in the following (in rough priority order):
    • Python
    • Django (or equiv. web framework)
    • Domain modelling
    • HTTP and REST APIs
    • Writing robust and fault-tolerant software
    • Celery and async processing
    • Postgres
    • Plus experience in the following would be a bonus:
    • AWS
    • Terraform, Packer, Consul
    • React and Redux
    • Ability to speak Japanese would be a plus

What you'll love about us

    • Our company culture - we won best company to work for in 2019 and our CEO, Greg has recorded a podcast about our culture and how we empower our people   
    • Flexible working environment - genuine work life balance here, we are in the top 5 companies in the UK, we treat you as a human, and do our best to make work and life merge smoothly together 
    • Relaxation - 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) 
    • Equity Options Scheme - you own your own part of the business, share options in the whole Octopus Energy Group so we all work together towards success 
    • Office culture - have a certain tech requirement? We’ll do our best to get it. Our offices are also stocked with fruit, breakfast, great coffee and soft drinks. Weekly on a Friday we all get together (this happens virtually too) for company updates and drinks - we call it Family Dinner 
    • Your development is important - we support and help with development including internal and external courses, learning, study support etc, all bespoke to you 


If this opportunity sounds like you, we'd love to hear from you.

More about us

Octopus Energy Group is an energy tech company. We use technology to make green electrons cheap and revolutionise customer experiences.  

Octopus Energy already supplies over 2 million homes with cheap green power in the UK, with operations in Germany, Australia and the USA, and launches planned for Japan and New Zealand. By the time you’ve applied, this list may be longer.  

As well as all that, Octopus Energy for Business supplies green energy to over 20,000 companies, Octopus Electric Vehicles helps make clean transport cheaper and easier, Octopus Energy Services brings smart products into thousands of homes, and Octopus Centre for Net Zero is a multi-disciplinary research organisation helping Governments and industry reach net zero sooner. 

Octopus Energy Group's tech arm, Kraken Technologies, enables our innovation. They have created our API driven in-house technology platform, built from the ground up around the customer. It powers the outstanding service, efficiency and smart products we’re using to accelerate the world’s transition to a decentralised, decarbonised energy system.  

The Kraken tech platform has been licensed to support over 17 million accounts worldwide, through deals with Good Energy,E.ON, Hanwha and Origin Energy - we've raised over £500 million to continue on our mission globally.

We also proudly enjoy a 5-star TrustPilot ranking from our customers.  We were named the Company that’s done the most in the past year to advance UK renewables at the REA Awards 2019, and most recently, our proudest award, that of Best Company to Work For.  

At Octopus, we're looking for genuinely decent people who are honest and empathetic. Our commitment is to provide equal opportunities, a diverse and inclusive work environment, and fairness for everyone. You are welcome to apply no matter your race, gender identity, sexuality, age, family or civil status, disability, religion, or ethnicity.