Senior Python Software Engineer (Energy Optimisation)

Join us, be part of more. 

We’re so much more than an energy company. We’re a family of brands revolutionising how we power the planet. We're energisers. One team of 21,000 colleagues that's energising a greener, fairer future by creating an energy system that doesn’t rely on fossil fuels, whilst living our powerful commitment to igniting positive change in our communities. Here, you can find more purpose, more passion, and more potential. That’s why working here is #MoreThanACareer. We do energy differently - we do it all. We make it, store it, move it, sell it, and mend it.  
  

About your team: 

You’ll be working centrally within our mission control room, aka Centrica’s group functions. From Finance and Data Science, to our Wellbeing and People teams - this is the engine of our energy system, where our various Centres of Excellence power up each of our brilliant businesses, ensuring they have all the support, technologies, and capabilities they need to get our customers to Net Zero by 2050.

We are currently recruiting for an Senior Python Software Engineer to work on battery optimisation software, supporting key areas such as ancillary services settlement within the energy markets. The role holder will collaborate with our Portfolio Management and Trading teams to provide critical insights into market risk, financial product pricing and asset performance.

As part of our engineering team, you will focus on designing scalable, high-performance systems while embracing best practices in software design, testing, and teamwork. We foster a culture of open communication, collaboration, and continuous improvement and are looking for a Senior Engineer who shares these values.

We embrace ‘flexible first’ as our guiding principle for flexible and hybrid working, which balances work, the team, and the individual need for flexibility. This role is based out of our London office, close to Marble Arch, with the team typically coming in 3 days per week. #LI-CET

Here’s what we need you to do:

• Develop and maintain high-performance software for battery optimisation and energy market settlement

• Assist the Portfolio Management team by providing market risk insights and ensuring the correct pricing of financial products

• Support Traders by delivering real-time performance insights into asset optimisation and market positioning

• Build and optimise data pipelines for handling large-scale time-series data related to energy assets and market activity

• Design and manage databases to ensure efficiency and scalability of analytical workflows

• Implement FastAPI-based APIs for internal tools and market data integration

• Deploy, monitor, and maintain applications in AWS, ensuring performance, security, and scalability

• Utilise Grafana to create real-time dashboards for visualising market and asset performance metrics

• Apply pandas and numpy to develop analytical models and optimize energy trading strategies.

What we’re looking for:

• Strong experience in Python, with a focus on performance optimisation and scalable systems

• Experience with market settlement processes and energy trading platforms

• Expertise in FastAPI or similar frameworks for building robust backend applications

• Exposure to DevOps practices, containerisation (Docker, Kubernetes), and CI/CD pipelines

• Solid knowledge of database design, including SQL and NoSQL solutions

• Experience working with AWS services (e.g., Lambda, S3, RDS, DynamoDB)

• Strong skills in pandas and numpy for data manipulation and analysis

• Experience with Grafana for monitoring and visualising system and market data

• Passion for energy markets, trading analytics, or asset optimisation

• Excellent communication skills and ability to work in a collaborative team environment.

Why should you apply?   
  
We’re not a perfect place – but we’re a people place. Our priority is supporting all of the different realities our people face. Life is about so much more than work. We get it. That’s why we’ve designed our total rewards to give you the flexibility to choose what you need, when you need it, making sure that you and your family are supported not only financially, but physically and emotionally too. Visit the link below to discover why we’re a great place to work and what being part of more means for you.  
  
https://www.morethanacareer.energy/centrica

If you're full of energy, fired up about sustainability, and ready to craft not only a better tomorrow, but a better you, then come and find your purpose in a team where your voice matters, your growth is non-negotiable, and your ambitions are our priority.

Help us, help you. We would love for you to share any information about yourself throughout our recruitment process so that we can better understand you and help shape your journey.