Era4 develops, owns and operates AI infrastructure across the UK, powered by renewable energy. Converting legacy industrial and energy sites into modern data-centre facilities, Era4 is combining brownfield regeneration opportunities with cleaner, efficient, scalable compute capacity for healthcare, research, finance, enterprise, and public-sector organisations
We are seeking a Platform Developer to contribute to the technical architecture, design, and implementation of our cloud infrastructure and applications. In this role you will work to devise and realise technical components, including software, of new production environments and to deliver technical change into existing environments.
The successful candidate will employ their professional experience of automation, schema modelling, and software development with their knowledge of cloud infrastructure in our collaborative culture.
Key Responsibilities:
Technical Components:
- Contribute to the technical architecture and design of significant aspects of our bare metal and Kubernetes-based AI infrastructure, across networking, compute, GPU, storage.
- Production of high-level and low-level design documentation.
- Specification of acceptance and integration tests.
- Work with Project Managers, other developers, and operational teams to successfully deliver technical components into production environments.
Software Development:
- Prototyping, definition, and realisation of scalable and maintainable software solutions for automation and services.
- Active participation in software development processes.
Essential Experience:
- Significant contribution to technical architecture/engineering of infrastructure, cloud, platform.
- Designing Kubernetes and cloud-native solutions for operation at scale.
- Delivery of technical documentation to a high standard.
- Database schema modelling (relational database and/or graph database).
- Strong understanding of automation, Infrastructure-as-code, GitOps (preferably including Ansible).
- Software development for production services (preferably including Python, Go).
- Version control using git.
One or more would be an advantage:
- Experience of building significant cloud services.
- Experience of working with industry partners.
- Contribution to relevant open-source projects.
- Understanding/awareness of AI/ML system design.
Why Join Era4:
You’ll be joining a mission-driven start-up building critical national infrastructure, where operational excellence directly enables growth. This role offers high visibility with leadership, real autonomy, and the chance to shape how a next-generation company operates at scale.
Diversity & Inclusion:
Era4 is an equal opportunity employer. We celebrate diversity and are committed to creating an inclusive environment for all employees.
Skills Required
- Significant contribution to technical architecture or engineering of infrastructure, cloud, or platform systems
- Experience designing Kubernetes and cloud-native solutions for operation at scale
- Ability to produce high-quality technical documentation
- Database schema modeling using relational and/or graph databases
- Strong understanding of automation, Infrastructure as Code, and GitOps
- Production software development experience for services
- Version control using Git
- Ansible experience
- Python experience
- Go experience
- Experience building significant cloud services
- Experience working with industry partners
- Contribution to relevant open-source projects
- Understanding or awareness of AI/ML system design
What We Do
Carbon3.ai is building the UK’s sovereign AI platform – secure, sustainable, and designed for real-world impact. AI growth demands are creating new challenges and compute power requirements are outpacing supply. At Carbon3.ai, we’re not just providing infrastructure, we’re building the foundations to overcome these challenges. We are an energy business transforming into the UK’s sovereign choice for AI. Vertically integrated from soil to software transforming legacy industrial sites into renewable powered AI data hubs. Designed, owned, and operated by Carbon3.ai, all infrastructure and data processing are located within the UK and fully subject to UK jurisdiction and regulatory oversight. We generate our own off-grid renewable power, providing low-cost, sustainable energy comparable to Nordic levels, making AI workloads both affordable and sustainable. We own 50+ sites across the UK and are rapidly scaling them into AI data centres, enabling high-density, low-latency, sovereign AI deployment at national scale. Whether you're training models, deploying intelligent agents, or building industry-specific solutions, Carbon3.ai accelerates your journey from concept to production. Backed by strategic partnerships with leading brands and robust investment, we’re building the infrastructure to power the UK’s most ambitious AI innovation – ensuring British enterprises can access world-class AI capabilities securely and sustainably.
