Senior Python Developer // Derby (onsite) // £60,000 - £80,000
This is a senior backend role for someone who wants to own technical direction on high-impact software that supports the UK’s transition to low-carbon energy.
You’ll be leading technical delivery across Python APIs and services used in real-world energy infrastructure; think power grid management, nuclear, and sustainability-focused tech.
This isn’t a theory-heavy R&D role. It’s about secure, scalable, performant backend engineering that enables data to move reliably through critical systems. You’ll help shape the architecture, mentor junior devs, and influence DevOps practices across a growing team.
Day to day:
* Architecting and building secure Python APIs using Django or Flask
* Deploying services to AWS, Azure, or GCP using Terraform and Kubernetes
* Mentoring devs, improving CI/CD and DevSecOps pipelines
* Managing performance, reliability, and system security
* Working with stakeholders across product, DevOps and compliance
What you’ll bring:
* Deep knowledge of Python with strong experience in RESTful API design
* Cloud-native deployment skills (AWS, Azure or GCP)
* Infrastructure-as-Code with Terraform, Docker, Kubernetes
* Strong understanding of Agile and DevOps engineering culture
* Comfortable leading technical discussions and code reviews
Bonus if you have:
* Knowledge of GDS delivery standards
* Exposure to embedded or real-time systems
* Experience with big data or machine learning backends
Why this role is worth considering:
* You’ll shape the direction of digital systems that support national infrastructure
* You’ll be joining a company investing heavily in long-term clean energy solutions
* Strong engineering culture with clear progression into architecture or leadership
* Majority of leadership team are promoted from within
Benefits:
* Enhanced pension and private healthcare
* Training, mentoring and personal development investment
* Holiday bonuses and an engaging Employee Committee
* A chance to make a genuine contribution to net-zero outcomes
* Sole UK nationals only – SC clearance required
For more information please apply now or contact job poster directly.
*Sole UK Nationals only*