Areti Group | B Corp™
Senior Java Developer
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🚀 Senior Java Developer x2 – Cloud-Native / Event-Driven Systems | Public Sector | Up to £470/day (Inside IR35)
We're hiring 2x Senior Software Engineers to join a major UK public sector programme, building cloud-native, event-driven services that support critical national digital infrastructure.
You'll work alongside Technical Architects, Data Engineers, and Product teams to design and deliver secure, scalable APIs and event-driven services — helping raise engineering standards while supporting and evolving existing live systems.
📍 Location: Leeds, Sheffield, or London (hybrid — travel flexibility dependent on team)
💰 Rate: Up to £470/day, Inside IR35
🔒 Clearance: Active SC clearance required, or strong confidence of obtaining it
⚠️ Essential: Prior experience working within UK Government or wider public sector is required
What you'll be doing:
- Designing and building secure, scalable cloud-native services and REST APIs
- Developing event-driven architectures using asynchronous messaging patterns
- Designing and implementing microservices within AWS
- Building integrations across operational systems via APIs and event-based architectures
- Applying Domain Driven Design (DDD) and modern software design patterns
- Developing secure services using OAuth2, JWT, and related standards
- Translating business requirements into maintainable technical solutions
- Designing for observability, resilience, and operational support
- Building reusable components and engineering patterns to promote consistency
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What we're looking for:
- ✅ Strong production experience with Java, Kotlin, or Go
- ✅ Strong experience building RESTful APIs (Spring Boot or equivalent)
- ✅ Experience with event-driven systems (Kafka, SNS/SQS, EventBridge)
- ✅ Solid grounding in automated testing, CI/CD, code review, and version control
- ✅ Cloud-native development experience within AWS
- ✅ Experience with Infrastructure as Code
- ✅ Experience designing highly available, resilient, secure distributed systems
- ✅ Experience working in agile, multidisciplinary delivery teams
- ✅ Strong communication skills — technical and non-technical stakeholders
- ✅ Previous UK Government or public sector experience essential
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Nice to have:
- ➕ Experience with telemetry, IoT, or event streaming platforms
- ➕ Experience with geospatial or location-based systems
If you're an experienced Java/Kotlin/Go engineer with a public sector background and active or eligible SC clearance, get in touch or drop me a message to find out more.
#Java #Kotlin #AWS #PublicSector #ContractJobs #InsideIR35 #SoftwareEngineering #SCCleared
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