Senior Software Engineer

OVO Energy; City Of London; Hybrid; GBP 55,000 - 85,000; Full time

Job summary

A leading energy company in the United Kingdom is seeking a Senior Software Engineer to drive technical initiatives and mentor engineers. The position offers a salary range of £55,000 to £85,000, plus potential bonuses, with a focus on developing scalable software solutions. You will engage in agile practices and contribute to a culture of continuous improvement. Excellent communication skills and expertise in backend technologies are essential for this role.

Benefits

34 days of holiday including bank holidays

Healthcare cash plan

Gym membership

Flexible benefits

Up to £400 towards energy plan

Qualifications

• Significant hands-on experience developing software in an agile environment.
• Proven track record of delivering high-quality, clean code.
• Expertise in designing scalable microservices-based architectures.

Responsibilities

• Lead technical initiatives and make critical design decisions.
• Drive the architectural vision for key features.
• Translate complex projects into clear executable tasks.

Skills

Technical Leadership

Communication

Agile Practices

Problem-Solving

Mentorship

Tools

Python

TypeScript

Docker

Kubernetes

React Native

Job description

Role OVO-View

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: Technical Excellence, Influence

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 – here’s how:

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 in a nutshell

You will lead technical initiatives, make critical design decisions and mentor engineers to elevate the team’s capabilities. Your expertise will be the driving force that ensures we build scalable, high‑quality software that pushes our company forward.

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.

Qualifications / What you’ll need

• 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 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 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.

Other Relevant Information

• Required Experience: Senior IC
• Key Skills: Spring, .NET, C / C++, Go, React, OOP, C#, AWS, Data Structures, Software Development, Java, Distributed Systems
• Vacancy: 1
• Employment Type: Full Time

Benefits & Compensation

We pay between 55,000 and 85,000 depending on your specific skills and experience. You will also be eligible for an on‑target bonus of 15% through the OVO bonus plan that focuses on the collective performance of our people to deliver our Plan Zero goal.

We also offer plenty of green benefits and progressive policies to help you feel like you belong at OVO.

• 9% Flex Pay on top of your salary: 4% auto‑enrolled into your pension, 5% you can allocate to flexible benefits, the rest can be taken as cash.
• 34 days of holiday (including bank holidays).
• Health: Healthcare cash plan or private medical insurance, depending on your career level; critical illness cover, life assurance, health assessments and more.
• Wellbeing: Gym membership, travel insurance, workplace ISA, writing services, dental insurance and more.
• Lifestyle: Extra holiday buying, discount dining, home & tech loans and support for your favourite charities through give‑as‑you‑earn donations.
• Home: Up to £400 towards any OVO Energy plan plus great discounts on solar smart thermostats and EV chargers.
• Commute: Great deals on ultra‑low emission car leasing, cycle‑to‑work scheme and public transport season ticket loans.

Want to hear about our full range of flexible benefits and progressive people policies? Our People Team can tell you everything you need to know.

Belonging & Inclusion

To find better ways to support our people we need to listen to each other’s experiences and 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.

Final Thoughts

We would be thrilled if you tick off all our boxes but we also believe it’s just as important we tick off all of yours. If you think you have most of what we’re looking for but not every single thing, go ahead and hit apply – we 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.