Senior Software Engineer (AIX)

Location: Hub Based - Hybrid for all

Salary banding: £55,000 to £85,000

Experience: Senior

Working pattern: Full-Time

Reporting to: Delivery & Growth Lead

Sponsorship: Unfortunately we are unable to offer sponsorship for this role.

This role in 3 words: Build, Collaborate, Deliver

Top 3 qualities for this role: Communication, Delivery Expertise, Amplification

Where you’ll work: Depending on the needs of your business area, we expect hub based people to be in the office at least once a week, and to go to OVO Connection events in-person. You’ll be assigned to the closest one of our three hub offices, Bristol, Glasgow, or London; unless your role requires field-based work. Each hub has accessible spaces to park your laptop, is designed to inspire people, help them connect and bring big ideas to life.

Everyone belongs at OVO: At OVO, we are on a mission to solve one of humanity's biggest challenges, the climate crisis. And we know it takes all of us to change the world. That's why we need diverse people from all abilities, gender identities, ethnicities, ages, sexual orientations, life experiences and backgrounds to join us.

Teamworking for the planet: Everything we do here spins around Plan Zero. So, naturally, the team you’ll be joining plays a gigantic role in making that happen.

As a Senior Software Engineer, you’ll own the end-to-end development of complex systems and features that are core to our business.

This role involves collaborating with multidisciplinary teams to develop AI-driven products delivered through mobile applications. Ideal candidates will have experience bringing AI solutions to market and working within the constraints of mobile platforms.

Your key outcomes will be:

• Technical Leadership & Architecture: Drive the architectural vision for key features, designing robust, scalable systems and contributing to the technical roadmap to influence the future direction of the product.
• Engineering Excellence & Quality: Champion best practices by writing clean, efficient code, leading rigorous code reviews, and implementing comprehensive automated testing to ensure high-quality, performant solutions.
• Mentorship & Team Growth: Lead and mentor other engineers, fostering a culture of continuous learning and collaboration through knowledge sharing, technical discussions, and constructive feedback.
• Project Execution & Delivery: Translate complex projects into clear, executable tasks within an Agile framework, proactively resolving blockers to ensure the timely and efficient delivery of team commitments.
• Community & Knowledge Sharing: Actively contribute to the wider engineering community by leading discussions, sharing expertise through documentation and workshops, and driving the exchange of best practices.

You’ll be successful here at OVO if you…

• Professional Experience: Significant hands-on experience developing software in an agile environment, with a proven track record of delivering high-quality, clean code.
• Backend & Architecture: Expertise in designing and building scalable microservices-based architectures using languages like Node.js, Python, and TypeScript.
• Cloud & DevOps: Hands-on experience with cloud platforms (GCP, AWS), containerization (Docker, Kubernetes), and modern CI/CD practices.
• Frontend Development: Proficiency in modern frontend frameworks such as React.js and/or React Native.
• Leadership & Mentorship: Proven ability to lead technical initiatives and mentor other engineers, fostering a culture of technical excellence.
• Collaboration & Problem-Solving: Excellent communication and analytical skills, with the ability to thrive in a high-ownership, collaborative team environment.

Let’s talk about what’s in it for you:

We’ll pay you between £55,000 and £85,000, depending on your specific skills and experience. You’ll be eligible for an on-target bonus of 15%. We also offer plenty of green benefits and progressive policies to help you feel like you belong at OVO…and there’s flex pay. We'll give you 9% Flex Pay on top of your salary – 4% of this is auto enrolled into your pension, and the remaining 5% is yours to do what you like with.

Here’s a taster of what’s on offer:

• 34 days of holiday (including bank holidays).
• Healthcare cash plan or private medical insurance depending on your career level, critical illness cover, life assurance, health assessments, and more.
• Gym membership, travel insurance, workplace ISA, will writing services, dental insurance, and more.
• Extra holiday buying, discount dining, home & tech loans, and supporting your favourite charities with give-as-you-earn donations.
• Up to £400 towards any OVO Energy plan, plus great discounts on solar, smart thermostats and EV chargers.
• Great deal on ultra-low emission car leasing, plus our cycle to work scheme and public transport season ticket loans.

For your Belonging: To find better ways to support our people, we need to listen to each other’s experiences and find ways to build a truly inclusive and diverse workplace. As part of this, we have 8 Belonging Networks at OVO. Led by our people, for our people - so when you join OVO, you can play a part - big or small - with any of the Networks. It's up to you.

Oh, and one last thing... We’d be thrilled if you tick off all our boxes, yet we also believe it’s just as important we tick off all of yours. And if you think you have most of what we’re looking for but not every single thing, go ahead and hit apply. We’d still love to hear from you!

If you have any additional requirements, there’s a space to let us know on the application form; we want to make the process as easy and comfortable for you as possible.