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Java Architect

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Onsite

Java Architect

W3Global

Java Architect

Skills

JavaMicroservicesRisk Management

14 days ago

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Important information


Contract type:

Permanent

Salary:

£48,000 – £80,000 / year

Location:

Belfast, UK

Work mode:

Onsite

Published on:

5 October 2026

What they need


Job Summary Seeking a Specialist with 5 to 7 years of experience in Java REST API development caching and performance optimization to design develop and enhance scalable cloudnative applications with a focus on performance testing and asynchronous API delivery

Job Description

  • Design and develop robust Javabased microservices and APIs following cloudnative principles
  • Migrate TPS Trade Entry services to OpenShift and optimize input channel configurations against instance allocation for improved performance
  • Implement local caching of reference data within APIs and TradeEntry services to enhance response times
  • Develop and enhance performance testing tools including tracing data capabilities using emerging tools like K6 and Gatling
  • Automate API testing using RestAssured to ensure highquality deliverables
  • Plan and execute performance testing strategies including workload modeling and risk mitigation
  • Implement asynchronous API delivery modes to improve system responsiveness and scalability
  • Collaborate with crossfunctional teams to integrate microservices within cloud environments ensuring scalability and reliability
  • Troubleshoot and resolve issues across development testing and production environments
  • Stay current with emerging Java API caching and performance testing technologies and best practices to continuously improve application performance and architecture

Roles And Responsibilities

  • Lead the design and implementation of Java microservices and APIs in a cloudnative environment
  • Oversee the migration and optimization of TPS TradeEntry services to OpenShift
  • Implement and maintain local caching strategies for reference data in APIs and TradeEntry components
  • Enhance performance testing tools and methodologies including tracing data enhancements
  • Develop and maintain automated API test suites using RestAssured
  • Plan manage and execute performance testing activities including strategy formulation and workload modeling
  • Implement and support asynchronous API delivery mechanisms
  • Mentor and provide technical guidance to junior team members within the JAVACLOUDNATIVE skill cluster
  • Participate actively in Agile ceremonies such as sprint planning daily standups and retrospectives
  • Ensure adherence to coding standards security best practices and organizational policies throughout the development lifecycle

Skills Mandatory Skills : API/Microservices RestAssured Testing, Java, Performance Testing -Emerging Tools (K6,Gatling)

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