Java Developer

Experis; Northampton; On-site; GBP 80,000 - 100,000; Full time

Job summary

Experis is seeking a skilled Java Developer to join their Northampton team on a contract basis. The position requires extensive experience with Java 17+, Spring Boot, and microservices frameworks, particularly Kafka. Successful candidates will design and develop web-based applications and ensure high-quality code standards. This role offers a competitive rate of £250 per day, with a duration extending to December 31, 2025.

Qualifications

• Hands-on experience with Java 17+.
• Experience with REST microservices and Async stacks like Kafka.
• Understanding of design patterns and Java memory model.

Responsibilities

• Design, develop, and customize web-based applications using Java/J2EE technology stack.
• Create low level designs conforming to solution architecture.
• Ensure adherence to code quality and security standards.

Skills

Kafka deployment and integration

Spring Boot

Microservices SDKs

API design using RAML

Java/J2EE

SQL/No-SQL databases

Tools

Bitbucket

SonarQube

Checkmarx

Job description

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Location: Northampton Job Type: Contract Industry: Cloud & Infrastructure Enterprise Applications Job reference: BBBH417492_1752659310 Posted: about 10 hours ago

Role Title: Java Developer

Location: Northampton

Duration: 31/12/2025

Rate: £250 per day - PAYE via Umbrella Only

Role Requirements:

• Kafka deployment and integration.
• Spring Boot, Spring Batch & Spring Cloud frameworks.
• Experience of building microservices SDKs.
• Create low level designs conforming to solution architecture.
• Design API contracts using RAML.
• Design, develop, and customise web-based applications using Java/J2EE technology stack with strong OOPS concepts.
• Understand integration patterns between presentation, business, and backend systems.
• Familiarity with RAML/Swagger, Mule, Java/J2EE, Spring Boot.
• Knowledge of API-led architecture, choreography, orchestration, exception handling.
• API gateway management and configuration.
• Enterprise service bus framework and integration patterns.
• Develop integrations with MariaDB, MongoDB.
• Understand domain-driven design concepts such as bounded contexts and continuous integration.
• Responsible for unit testing and component integration testing.
• Experience with SCM tools like Bitbucket, Stash, GIT; contribute to versioning protocols.
• Ensure adherence to code quality and security standards using tools like SonarQube, Checkmarx.

Essential Skills:

• Hands-on experience with Java 17+.
• Experience with Spring Boot and REST microservices.
• Experience with Async stacks like Kafka.
• Experience with SQL/No-SQL databases.
• Understanding of GC, multi-threading, design patterns, Java memory model.