Xist4
Java Platform Engineer
Java Platform Engineer at Xist4, based in London, paying £90,000 - £110,000 per annum. This is a permanent role with hybrid working.
- Pay
- £90,000 - £110,000 per annum
- Hours and contract
- Permanent · Hybrid
- Location
- London
- Closing date
- Sector
- DevOps Engineer
About 61% above the going rate for devops engineer
Reference 52ba5a50ed1377122bac71bc3e857123a0a79625
About the role
Java Platform Engineer
Location: London (Hybrid – 2 days onsite)
A UK-based electric vehicle and energy technology company is looking for a Java Platform Engineer to help build and evolve the backend platforms that support battery technology, EV charging networks, and energy data services.
This is a hands-on engineering role focused on designing, building, and operating Java-based systems that sit behind real-world infrastructure — from charging availability and energy optimisation to battery performance and telemetry data.
Why this role?
EV charging and battery platforms demand software that is robust, scalable, and operationally sound. As a Java Platform Engineer, you’ll work on backend services that must perform reliably in live environments, handling high volumes of data and integrating with physical systems.
You’ll join a team that values clean design, strong fundamentals, and pragmatic engineering over unnecessary complexity.
Key Skills & Experience
You don’t need prior experience in EV, battery, or energy systems. If you’ve built and supported reliable backend platforms and enjoy working close to infrastructure-level challenges, your background will translate well.
Essential
- Strong commercial experience with Java (Java 11+)
- Building backend services using Spring / Spring Boot
- Experience designing and operating distributed systems
- Strong API development experience (REST, service-to-service integration)
- Solid SQL skills and relational database experience
- Experience working in cloud environments (AWS, Azure, or GCP)
Useful to have
- Experience with event-driven architectures or messaging
- Handling high-volume, time-series, or telemetry data
- Exposure to charging platforms, energy systems, or IoT-style integrations
- Familiarity with containers (Docker) and CI/CD pipelines
- Interest in clean energy, EV infrastructure, or battery technology
What you’ll be doing
As a Java Platform Engineer, you’ll be hands-on across design, build, and run:
- Designing and developing Java services that underpin battery and EV charging platforms
- Building APIs used by charging systems, operational tools, and partner integrations
- Improving system scalability, reliability, and data integrity
- Collaborating with engineers across software, data, and platform teams
- Contributing to technical decisions and improving platform standards
- Supporting production systems and continuously improving how they operate
The Opportunity
- Work on EV charging, battery tech, and energy platforms with real-world impact
- Hands-on senior engineering role with meaningful technical ownership
- Modern Java stack with cloud-native development
- Long-term platform engineering rather than short-term delivery
- Hybrid London working with a technically grounded team
Salary & Benefits (London-weighted)
- Salary: £90,000 – £110,000 (depending on experience)
- Hybrid working (London)
- Pension and benefits package
- Learning budget and support for professional development
- Opportunity to grow with a scaling EV and energy technology business
Interested?
If you’re a Java Platform Engineer who enjoys building reliable systems behind EV charging or energy platforms, apply now or reach out for a confidential conversation.
Reference: 52ba5a50ed1377122bac71bc3e857123a0a79625 · Posted 15 minutes ago · Closes 5 Dec 2026 · Listed via Xist4
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