Senior Java Backend Developer
Posted Today by Robert Walters
£800 Per day
Inside
Hybrid
City of London, UK
Summary: The Senior Java Backend Developer role is a one-year contract position based in London, offering a competitive day rate of up to £800. The successful candidate will work with a major multinational financial institution, focusing on building reliable and scalable products while ensuring system reliability and security. This position requires strong technical skills in Java, relational databases, and experience with Kafka, among other technologies.
Key Responsibilities:
- Apply domain modelling and scalable architecture to build reliable, best-in-class products without single points of failure
- Develop secure, understandable code that's easy to test, evolve, and optimised for data handling and performance
- Ensure zero-downtime releases, system reliability, and ease of operations through proactive monitoring and issue resolution
- Promptly investigate, fix, and prevent issues from resurfacing, whilst supporting products across their full life cycle
- Continuously update technologies, patterns, and solutions to maintain security and protect against malicious actors
Key Skills:
- Strong experience with relational databases (eg, PostgreSQL or CockroachDB)
- Hands-on experience with Kafka, including Avro or JSON messaging
- Solid understanding of database migration, transactions, and normalization
- Experience working outside the financial services domain
- Proven experience building REST APIs and understanding of high-level design (HLD)
Salary (Rate): £800 daily
City: London
Country: UK
Working Arrangements: hybrid
IR35 Status: inside IR35
Seniority Level: Senior
Industry: IT
Senior Java Backend Developer
Location: London (Hybrid)
Contract: 1 year
Day Rate: up to £800
Who We Are
Robert Walters is the world's most trusted talent solutions business. Across the globe, we deliver recruitment, outsourcing, and talent advisory services for businesses of all sizes, opening doors for people with diverse skills, ambitions, and backgrounds.
Who You Will Work With
Our client is a major multinational financial institution delivering a broad spectrum of banking and investment solutions to diverse public and private sector clients across the globe. As a workplace, it provides attractive pay, worldwide mobility, and a disciplined, results-focused culture that prioritizes regulatory adherence, skill enhancement, cutting-edge tech, and thriving under demanding, high-velocity conditions.
What You'll Do
- Apply domain modelling and scalable architecture to build reliable, best-in-class products without single points of failure
- Develop secure, understandable code that's easy to test, evolve, and optimised for data handling and performance
- Ensure zero-downtime releases, system reliability, and ease of operations through proactive monitoring and issue resolution
- Promptly investigate, fix, and prevent issues from resurfacing, whilst supporting products across their full life cycle
- Continuously update technologies, patterns, and solutions to maintain security and protect against malicious actors
What You Bring
- Strong experience with relational databases (eg, PostgreSQL or CockroachDB)
- Hands-on experience with Kafka, including Avro or JSON messaging
- Solid understanding of database migration, transactions, and normalization
- Experience working outside the financial services domain
- Proven experience building REST APIs and understanding of high-level design (HLD)
What's Next
If you are ready to take the next step, apply now! Successful applicants will be contacted directly by a recruiter to discuss the role more.
We are committed to creating an inclusive recruitment experience. If you require support or adjustments to the recruitment process, our Adjustment Concierge Service is here to help. Please feel free to contact us at (see below) to discuss how we can support you.
This position is being recruited on behalf of our client through our Outsourcing service line. Resource Solutions Limited, trading as Robert Walters, acts as an employment business and agency, partnering with top organizations to help them find the best talent. We welcome applications from all candidates and are committed to providing equal opportunities.