2640 IT & Software Developer jobs in the UK

Client Server jobs

Backend Software Engineer (Kotlin, Java, Spring Boot)

£80,000 - 80,000
Client Server
Primrose Street 20, Broadgate
£80,000 - 80,000
Company Size icon
Company Size
50-200
Company Type icon
Company Type
Services
Exp Level icon
Exp Level
Senior
Job Type icon
Job Type
Full-Time
Language icon
Language
English
Visa sponsorship icon
Visa sponsorship
No

Requirements

Must:
- Experience within a financial services environment working on complex real-time systems - Commercial server-side development experience using Kotlin, preferably from a Java background - Experience with Spring Boot and microservices - Familiarity with messaging technologies such as Kafka, FIX, RSocket, Protobuf - Strong knowledge of threading paradigms (Kotlin Coroutines would be a plus) - Experience with automated test frameworks for testing code - Good knowledge of SQL databases - Appreciation of AI and the pros and cons of agentic AI development and tools such as Gemini, CLI, Claude - Collaborative, pragmatic with great communication skills

Responsibilities

- Build high-performance, real-time servers powering critical financial applications - Design fast, intuitive APIs that simplify integration - Write secure, well-architected, and thoroughly tested systems - Ensure reliability at scale - Explore new technologies and take part in hack days - Collaborate with experienced engineers in a supportive environment where ideas are encouraged

Description


We are a highly successful financial software house whose award-winning software enables customers to build high-performance web trading apps that deliver real-time information securely and reliably. We offer a competitive salary of up to £80k, along with benefits such as pension, income protection, life assurance, private medical and dental care, gym membership, childcare vouchers, cycle to work scheme, season ticket loan, and the ability to buy extra holiday. You can work from home most of the time, joining colleagues in the London office once a week or fortnight. At Client Server, we believe in a diverse workplace that allows people to play to their strengths and continually learn.
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How many Java Developer jobs are in the UK?

Currently, there are 2640 Java openings. Check also: Kotlin jobs, Scala jobs, Spring jobs - all with salary brackets.

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