101 to 125 of 139 Contract Java Jobs

will bridge the gap between traditional telecommunication protocols and modern cloud-based AI. Your core focus will be developing stable SIP services using Java, managing open-source media engines, and integrating advanced Speech AI technologies across multi-cloud environments. Key Responsibilities · SIP Development: Develop, test, and maintain mid-to-high … latency problems. · Team Collaboration: Work alongside senior architects and DevOps teams to roll out scalable conversational AI bots. Requirements: · Core Language: Professional experience with Java, including multi-threading and network programming. · In depth knowledge of Java · Good knowledge of java applications using JAIN SLEE framework, SIP Servlet Frameworks · Telephony Engines ...

looking for a Full-Stack Engineer to build high-scale web applications using React Micro-Frontends Java/Spring Boot , and AWS . You will work in an AI-first Agile environment using Agentic AI tools (Claude, Codex) for rapid code generation while you direct architecture, specifications, code reviews … Tech Stack & Skills Frontend: React & TypeScript (HTML5, CSS, modern state management). Direct experience with Micro-Frontend (MFE) architectures (e.g., Module Federation). Backend: Java & Spring Boot (building/consuming RESTful APIs & BFF layers). Solid understanding of data modeling ( SQL or NoSQL ). Cloud & DevOps: Proficiency with AWS services ...

scalable, resilient services supporting AI agent workflows, enterprise knowledge access, integrations, and business process automation. What you'll be doing Build backend services using Java 20% more focus on Python 80% and/or Node.js Develop secure, scalable REST APIs Design microservices and event-driven architectures Work with Kafka/… monitoring and observability capabilities Work closely with AI, Data, Architecture and Security teams What we're looking for Strong backend engineering experience with Java, Python, Node.js or similar Experience with APIs, microservices and distributed systems Understanding of event-driven architecture and messaging Experience with cloud, containers and Kubernetes/OpenShift ...

Engineers are required to join a Core Modernisation team, working within agile Scrum squads alongside Java Engineers, Front End Developers, and Quality Engineers. The role will focus on the modernisation and enhancement of legacy services, contributing to the delivery of scalable and reliable applications. Required Skills Java Spring Boot JUnit ...

Senior Java Developer Location: Telford (2 days per week onsite/2 days per month depending on project requirements) Rate: £550 per day Contract Length: 12 Months Clearance: BPSS Required Overview We are seeking experienced Senior Java Developers to join the COTAX Futures Team within Tax Administration, supporting a major ...

Senior Java Engineer/Tech Lead – Contract I'm looking for a Senior Java Engineer/Tech Lead to join a large-scale product modernisation programme. This is a hands-on role working across a complex brownfield Java platform . Alongside solving complex technical problems and helping stabilise and modernise … role in coaching and mentoring the wider engineering team as they transition towards AI-assisted development . Looking for: Strong hands-on Java engineering experience Tech Lead experience, including coaching and mentoring engineers Experience with complex brownfield/legacy products Experience helping engineering teams adopt AI within their development practices ...

Type: Contract 12 months Role Overview We are looking for an experienced Senior Software Engineer with strong hands-on Golang coding experience and solid Java development skills to join a project for a leading financial services organisation. A key requirement for this role is practical experience using AI tools … improve coding productivity, debugging, testing, documentation and overall engineering efficiency. Key Skills & Experience Mandatory: Strong hands-on experience with Golang (Go) Strong experience with Java Approximately 10 years of overall software engineering experience At least 5 years of relevant development experience Strong software engineering and problem-solving skills Experience developing ...

applications within a cloud-based environment, integrating modern AI capabilities into voice services while maintaining highly available telecoms platforms. Key Responsibilities Develop and maintain Java-based voice and call service applications. Build functionality within large-scale telecoms and contact centre environments. Work with cloud-based voice service platforms and communications … enhance CI/CD pipelines and deployment processes. Collaborate with architects and engineering teams to deliver scalable voice solutions. Skills and Experience Strong Java development background. Commercial telecoms, VoIP or unified communications experience. Experience developing SIP or call-handling applications. Exposure to telecom application frameworks such as Rhino SLEE, JAIN ...

Software Developer 12 month contract Based in Portsmouth Offering £55ph Inside IR35 Do you have experience with JAVA? Do you have experience developing within a microservice architecture? Do you want to work with an industry-leading company? If your answer to these is yes, then this could be the role … team to design, implement, and test features for a new product development Task estimation in accordance with sprint planning Your skillset may include: Java Core (version 8+) Spring Boot, Spring Framework - Good knowledge of developing in Spring with Hibernate Good Knowledge of developing REST within HTTPS Experience developing within ...

requirements and develop effective test strategies. Create and maintain test data and testing artefacts. Participate in collaborative development through pair programming. Review and interpret Java unit tests (e.g. JUnit) to support defect investigation and test analysis. Design and develop automated end-to-end and system tests using Playwright and Java. … Performance & Security Testing Gatling OWASP ZAP Cloud & Infrastructure AWS Docker Kubernetes Accessibility WCAG Wave Axe Technology Stack Front End Remix React JavaScript Back End Java Spring .NET Data & Messaging MongoDB Oracle RabbitMQ JSON ...

Responsibilities Software Engineering Design, develop, test, and maintain backend services, APIs, and engineering tools. Build production-quality software using technologies such as Go, Python, Java, or C#. Apply software engineering best practices including SOLID principles, design patterns, refactoring, and peer code reviews. Develop scalable, maintainable, and highly testable systems … scalability, and performance. Essential Skills & Experience Strong software engineering background with significant hands-on development experience. Proven experience building production systems using Go, Python, Java, or C#. Experience designing and building APIs, microservices, and backend services. Strong understanding of software architecture, design principles, and engineering best practices. Experience with automated ...

IAM Security Engineer Contract Details Initial 6-month contract 4 days per week onsite in London £400-£450 per day (INSIDE IR35) We're working with a leading financial services organisation seeking an experienced IAM ...

Working with a global organisation that is looking for a Java Software Developer to help deliver a high-profile project. The team are predominantly Telford based, and they will be looking to have team days each week in the office whenever appropriate to meet the clients' working standards. This ...

Solution Architect/Senior Solution Architect/Technical Solution Architect - Java/Kafka - Hands on £600 Pay - Outside IR35 - 4 Days per week on site in London Bridge 6 month initial contract We've partnered with a genuinely exciting organisation who are building a greenfield Bank, as part of this … implementing a whole host of new platforms and technologies. For this role, we're looking for a hands on/technical Solution Architect with Java and Kafka to drive forward the end-to-end architecture for s RTL & Payments Transformation, ensuring cohesive design across Payments, Reconciliation, KYC, Cash Management, Monitoring ...

Lead Java Developer 12 Month Duration 60% on site - Manchester, Leeds or Birmingham Inside IR35 As a Lead Software Engineer you will be an expert in your field, skilled in multiple disciplines, a role model in software craftsmanship and have proven experience in the design, development and support of software ...

Lead Java Developer 12 Month Duration 60% on site - Manchester, Leeds or Birmingham Inside IR35 As a Lead Software Engineer you will be an expert in your field, skilled in multiple disciplines, a role model in software craftsmanship and have proven experience in the design, development and support of software ...

Hiring: Lead Data Engineer (Java) Locations: Newcastle, Glasgow, Manchester, or London Clearance: Active SC Clearance is highly preferred (SC eligible candidates will be considered) Contract Duration: 13+ months Are you an expert Data Engineer with strong Java programming skills? Join our AI & Data team to design, build, and optimize innovative ...

Senior Full Stack Java/Vue.js Engineer - Contract Location: UK - Fully Remote Rate: Up to £500 per day IR35: Outside IR35 Duration: 6 months initially I'm looking for an experienced Senior Full Stack Java/Vue.js Engineer to join a high-performing engineering team on an initial 6-month ...

with Passion: Inspire and motivate your team to achieve outstanding results while fostering a culture of innovation and collaboration.. * Building full-stack applications using Java, JavaScript, React. *Mentor: Share your knowledge and experience with team members, helping them grow and succeed in their roles. Type:6 Month Contract Day Rate … Outside IR35) Location: Manchester/Hybrid Start: ASAP Skills *Experience in software development with previous experiences in a leadership role. *Tech Savvy: Proficiency in Java, Spring Framework, Spring MVC, Spring/Boot, Tomcat, Hibernate, Git, BitBucket, and Jenkins. *Experience with JavaScript, React. * Good experiences in AWS, Docker, Kubernetes Please apply ...

successful candidates will have strong hands-on experience across functional, API and UI testing, together with proven automation expertise using Karate, Playwright and Java . You will play a key role in designing and delivering robust test solutions, troubleshooting complex issues, supporting continuous improvement of our testing approach, and providing … testing across applications and services. Design, develop and maintain automated test frameworks and test suites. Build and enhance automation solutions using Karate, Playwright and Java . Analyse test failures, application behaviour and technical logs to identify and troubleshoot defects. Develop effective test scenarios and test cases based on business ...

robust data solutions within a modern cloud-based environment. This is an excellent opportunity to work with cutting-edge technologies including AWS, Kafka, Kubernetes, Java, and Big Data platforms , helping organisations unlock the value of their data. The Role As a Data Engineer, you'll be responsible for designing, developing … with emerging technologies and industry trends to drive continuous improvement. Required Skills & Experience Strong commercial experience in Data Engineering . Expert-level proficiency in Java . Advanced experience with Amazon Web Services (AWS) . Advanced experience with Apache Kafka . Advanced experience with Kubernetes . Experience working with Big Data ...

required before starting - active SC on application is preferred What you'll be doing: Develop high-quality, readable, scalable and easily maintained code, using Java and related technologies, meeting requirements and coding standards. Develop reusable patterns and encourage innovation that will enhance team velocity. Contribute to quality assurance by writing … potential compliance risks and a commitment to act with integrity, as the foundation for the Company's success, reputation and sustainable growth. Requirements : Essential Java Cloud Services development Unit testing Desirable DevSecOps awareness using tools such as Tekton, ArgoCD, SonarQube Red Hat Openshift container platform or Kubernetes Quarkus Framework Front ...

Senior Java Architect - Payments Location: London (Hybrid) Contract: 6 Months Initial Pay Rate: £550-£600 - Outside IR35 About the Role We're supporting a global financial services organisation undergoing a significant banking transformation programme. As part of this journey, they are building next-generation banking capabilities and modernising core platforms ...

Senior Java Architect Banking, Payments & AI Engineering Location: London (Hybrid) Role Type: Contract Rate: Up to £600 a day (Outside IR35) We're seeking an experienced Java Architect to play a key role in a major banking transformation programme, helping to deliver enterprise-scale banking and payments platforms with ...

Hiring: Senior Software Engineer (Java/AWS) One Day Hybrid to Manchester We are looking for a product-minded engineer to build scalable, high-volume transactional systems. If you love solving complex backend challenges and care about the user experience, we want to hear from you. The Tech Stack: Java … shape features from concept to launch. Ensure high availability, performance, and scalability across our platform. What We're Looking For: Strong expertise in Java and Spring Boot . Solid experience architecture and deploying services on AWS . Background in high-scale e-commerce, travel, or transactional environments. A strong product ...