Software Engineer

OPENING FROM KRAKEN TECHNOLOGIES FRANCE - ALL LOCATIONS

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Help us use technology to make a big green dent in the universe

Kraken powers some of the most innovative global developments in energy.

We’re a technology company focused on creating a smart, sustainable energy system. From optimising renewable generation, creating a more intelligent grid and enabling utilities to provide excellent customer experiences, our operating system for energy is transforming the industry around the world in a way that benefits everyone.

It’s a really exciting time in energy. Help us make a real impact on shaping a better, more sustainable future.

Kraken Customer

What we do: build the most AI‑driven, innovative, forward‑thinking platform for energy management. From optimizing resources to delivering cost‑effective, exceptional customer experiences through advanced Customer Information Systems (CIS), billing, meter data management, CRM, and AI‑driven communications, Kraken is powering the next wave of innovation in the energy industry.

Why we do it: future energy will not look like energy as we know it today. We need to not just think about our future, but build for it. Now.

Our mission is to provide cheaper, greener energy to the French market.

Octopus Energy France is a fast‑growing energy company recognized as an ESS (social economy). We offer a better experience to our customers through transparency, honesty and simplicity. We want to do better for the planet, through real, long‑term investment in renewable energy production and a low‑CO2 future that’s better for our customers’ wallets. We want to revolutionise the energy business through our people, our platform and our use of data.

Our focus is on customer satisfaction, and receiving positive reviews is important to us - we have the best score among French energy suppliers on Google Reviews and Trust Pilot.

Kraken technologies

Kraken Technologies is a company within Octopus Energy Group that licences the Kraken platform and operating model to clients across the world. Current clients are both the Octopus Energy retail businesses around the world as well as external clients such as Good Energy, Origin, EDF, E.ON and Queensland Energy – with many more expected to join over the next few years.

Our team

All technology is written and maintained by a multi‑discipline engineering team of around 450 people globally. 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.

Some of our coding conventions are open‑source.

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” (e.g. 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 native code or React Native.

What you’ll do

• 
  
• Work on difficult design challenges in the French energy market – a domain that is complicated, outdated and process‑heavy. Domain modelling and careful attention to detail are essential.
  
• Collaborate in a multidisciplinary software engineering team to solve design challenges, domain modelling, and technical problems, engineering solutions for smart meters.
  
• Write robust, fault‑tolerant software primarily in Python and Django, including Celery and async processing.
  
• Handle large volumes of meter readings – potentially millions per day – and engineer systems that can scale.
  
• Contribute to a company actively fighting climate change, supporting larger renewable projects and innovative tariff solutions.
  

It would be helpful to have experience/expertise in the following (in rough priority order)

• 
  
• Python (minimum 7 years)
  
• Django (or equivalent web framework)
  
• Fluent in French, and at least B2 in English
  
• Domain modelling
  
• HTTP and REST APIs
  
• Writing robust an