Senior Software Engineer - Backend, OE Engineering
Senior Software Engineer - Backend, OE Engineering
Posted on :
21-08-2025
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1 Vacancy
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Job Description
Help us use technology to make a big green dent in the universe!
Were 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.
Its a really exciting time in energy. Help us make a real impact on shaping a better more sustainable future.
About the Team
Were on a mission to create intuitive engaging and scalable digital experiences for consumers - from customer signup journeys to campaign integrations and beyond our projects are as diverse as our ideas and we always keep users front and center.
Some of the things you might work on:
Building dynamic dashboards that transform with each campaign theme
Integrating LINE accounts so customers can sign up for campaigns with a single tap
Blending promotional content seamlessly into core product functionality
Surfacing real-time campaign performance through slick interactive charts
Were not just building features - were crafting flexible maintainable and scalable solutions that make life easier for both our partners and our internal teams.
Our teams still growing which means youll be part of shaping how we work. We move fast learn quickly and care deeply about clean code smart testing and good monitoring. We believe great communication is key: we lean on quick face-to-face chats or huddles for fast-moving topics and use Slack Asana and other async tools to keep things running smoothly in the background.
Were transparent collaborative and not afraid of a bit of trial-and-error. Expect regular reviews lots of learning and plenty of chances to make your mark.
About the Role
Were looking for a talented software engineer to help solve exciting challenges for our sustainability-focused energy retailer client.
Our team members are passionate about technology and making a positive impact on the planet. Theyre self-motivated problem-solvers who love taking initiative and helping others grow while delivering great results for customers and teammates.
We value people who are adaptable collaborative and thoughtful decision-makers. They embrace change create an inclusive environment where everyone belongs and stay calm under pressure while always being ready to help.
What youll do
- Design build and maintain high-performing reliable code to meet the unique business needs.
- Improve code quality with daily basis small refactoring with better naming better coupling better tests.
- Collaborate with stakeholders via Product Manager to automate and improve real-world processes.
- Strive to find simple elegant solutionseven for complex region-specific requirements.
- Actively contribute to the codebase with a hands-on problem-solving mindset.
- Support fellow engineers by pairing giving thoughtful design and code reviews and sharing knowledge to help everyone grow.
- Quickly investigate and resolve technical issues including working with other teams when our operations or users are impacted.
- Follow a culture of frequent feedback team retros and regularly reviewing tools and workflows to keep improving how we work.
- Prioritize delighting both our customers and internal colleagues by designing intuitive user-friendly experiences.
- Use monitoring tools (Sentry or Datadog) and identify the issues or discover opportunities to make our application more reliable.
- Place an emphasis on transparency taking ownership and iterating on processes if something isnt workingalways aiming to deliver quality and value.
What youll have
- Were not obsessed with checking boxes. We value curiosity empathy and a love for building. But heres what helps:
- Python - experience with at least one web framework (Django Flask etc.)
- Domain modelling
- HTTP and REST APIs
- Writing robust and error-resistant code
- Celery and async processing
- Postgres
- Thoughtful problem-solving with attention to detail
- Strong communication and team collaboration skills
- Familiarity with Git and version control workflows
- Experience with front-end applications (React TypeScript etc.).
- Experience with GraphQL.
- Experience with AWS infrastructure.
- Experience with Infrastructure as Code (Terraform etc.)
- Japanese language ability is a bonus but not required. Were a global inclusive team.
- Backend: Python Django Celery Graphene Postgres Terraform AWS
- Frontend: TypeScript React GraphQL Storybook XState Storyblok Typeform
- Tooling & Testing: CircleCI Sentry Datadog pytest
Nice-to-haves:
Our Tech Stack:
Our Culture
- We are at the forefront of innovation in the energy industry - and our success is driven by our people.
- Loves learning and enjoys sharing knowledge.
- Cares deeply about users and the impact of your work.
- Engages with people from diverse and multicultural backgrounds with sensitivity empathy and warmth.
- Gives and receives constructive feedback with openness learns from challenges and grows with a strong sense of purpose.
- Can thrive in a fast-moving collaborative environment.
- Believes technology can and should fight climate change.
- Is excited to shape a modern engineering culture.
- Whether youre a seasoned engineer or just starting your software engineering journey if youre passionate and kind we want to hear from you.
To thrive at Kraken youll be someone who:
Why join 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 dont 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 Well 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.
Kraken is a certified Great Place to Work in France Germany Spain Japan and the UK we are one of the Best Workplaces on Glassdoor with a score of 4.7. Check out our Welcome to the Jungle site (FR/EN) to learn more about our teams and culture.
Are you ready for a career with us We want to ensure you have all the tools and environment you need to unleash your potential. If you have any specific accommodations or a unique preference please contact us at and well do what we can to customise your interview process for comfort and maximum magic!
Studies have shown that some groups of people like women are less likely to apply to a role unless they meet 100% of the job requirements. Whoever you are if you like one of our jobs we encourage you to apply as you might just be the candidate we hire. Across Kraken were looking for genuinely decent people who are honest and empathetic. Our people are our strongest asset and the unique skills and perspectives people bring to the team are the driving force of our success. As an equal opportunity employer we do not discriminate on the basis of any protected attribute. We consider all applicants without regard to race colour religion national origin age sex gender identity or expression sexual orientation marital or veteran status disability or any other legally protected status. U.S. based candidates can learn more about their EEO rights here.
Our (i) Applicant and Candidate Privacy Notice and Artificial Intelligence (AI) Notice (ii) Website Privacy Notice and (iii) Cookie Notice govern the collection and use of your personal data in connection with your application and use of our website. These policies explain how we handle your data and outline your rights under applicable laws including but not limited to the General Data Protection Regulation (GDPR) and the California Consumer Privacy Act (CCPA). Depending on your location you may have the right to access correct or delete your information object to processing or withdraw consent. By applying you acknowledge that youve read understood and consent to these terms
Required Experience:
Senior IC
Employment Type
Full-Time
Key Skills
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