Lead Software Engineer – Java / Platform Engineering – Contract – Inside IR35
We’re supporting a large-scale technology modernisation programme within a complex enterprise environment and are looking for several experienced Lead Software Engineers to join a high-performing engineering team.
This is an opportunity to work on a greenfield platform build, helping shape and deliver a core middleware capability that will support multiple business‑critical services and applications.
The Opportunity
You’ll join an established engineering function delivering modern platform and backend services within a cloud‑based environment. The work focuses on building scalable, production‑grade shared services and APIs within containerised AWS infrastructure.
The programme is highly collaborative and suited to engineers who enjoy operating within cross‑functional teams alongside architecture, platform, and product stakeholders.
Key Responsibilities
- Designing and building scalable Java‑based backend services
- Developing microservices and event‑driven solutions
- Contributing to platform and shared service architecture
- Building and maintaining production‑grade APIs
- Working within containerised AWS environments
- Collaborating with engineering, architecture, and product teams
- Providing technical leadership within an agile squad environment
Required Experience
- Strong hands‑on Java development experience (Java 11+)
- Commercial experience with Spring Boot
- Microservices and event‑driven architecture experience
- Experience with Kafka or similar messaging technologies
- AWS cloud engineering experience
- Containerisation and Kubernetes/EKS exposure
- CI/CD pipeline and DevOps practices
- Experience operating within complex or regulated enterprise environments, ideally Financial Services
What We’re Looking For
- Engineers operating at Lead level technically
- Strong communication and stakeholder engagement skills
- Experience owning technical decisions and solution design
- Comfortable working autonomously within fast‑paced delivery environments
- Individuals who thrive within collaborative supplier/client engineering team
Working Arrangement
- Hybrid working model
- London‑based delivery environment
- Regular on‑site collaboration expected (2 days per week)
Additional Information
- Immediate to short‑notice availability preferred
- Multiple hires planned with potential for further team growth
- Fast‑moving interview and onboarding process
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