22 java engineer jobs found

At Mindera, we craft software with people we love. We are seeking an experienced Java Engineer with strong expertise in IBM Sterling Order Management System (OMS) and Sterling Intelligent Promising (SIP) to join our crew! The role combines backend development and product extension work, enabling intelligent fulfilment, sourcing optimisation, and seamless integration across order channels. You will partner with functional configuration experts and business teams to translate complex fulfilment logic into scalable, maintainable Java components — supporting both Sterling OMS core flows and the SIP decision engine. Please note: This is a six month contract that sits outside IR35. You will be required to work in Paddington 3 days a week. We are looking for someone who is a: Hands-on engineer with a deep technical understanding of Sterling OMS and SIP. Comfortable collaborating with both technical and functional teams — bridging configuration and customisation....

We're partnering with a leading energy trading organisation at the forefront of global commodities markets, currently investing heavily in their ETRM platform. As part of this growth, they're looking for an experienced Java Developer to join a high-performing engineering team delivering scalable, front-to-back trading solutions. This is a standout opportunity for a strong Java engineer with energy trading exposure who is keen to step into the world of Endur ETRM and OpenComponents, gaining highly sought-after domain and platform expertise  The Opportunity You'll work on business-critical systems that support trading, risk, and operations across power, gas, and wider commodities markets. The role blends core Java engineering with the chance to quickly upskill in Endur, supported by a team of experienced SMEs. This is ideal for someone looking to bridge the gap between pure software engineering and specialist ETRM platforms Responsibilities Designing and...

Platform Engineer | AWS | Terraform | Containers | Outside IR35 £550-£600/day | Outside IR35 | 3 Months Initially | Manchester (Up to 2 Days Onsite ) We're supporting a fast-growing technology product business as they continue to scale their platform engineering capability and invest heavily in the infrastructure, tooling and automation that underpins a globally-used produc t. This is an opportunity for a Platform Engineer with a strong Software Engineering backgro und to join a highly talented team, helping to build and evolve a modern cloud platform that enables engineers to deliver software quickly, securely and at sca le. We're looking for someone who understands infrastructure, but also understands developers. Someone who has spent time building software themselves and can bridge the gap between engineering and platform te ams. What You'll Be DoingDesigning and building scalable AWS infrastructure using Infrastructure as CodeDeveloping and...

Application Support Engineer / Infrastructure Engineer (Contract, Outside IR35) Salary: £95,000 - £110,000 or £500–£650/day Outside RI35 Location: On-site, UK Security Clearance: Active eDV required Overview An opportunity for an experienced Infrastructure Engineer to join a secure, mission-critical environment. You will be responsible for supporting and enhancing enterprise infrastructure, ensuring the reliability, performance, and security of systems while working closely with technical teams and end users. Responsibilities Design, deploy, and maintain physical and virtual infrastructure. Monitor, troubleshoot, and optimise system performance. Automate operational processes using configuration management and scripting tools. Support production systems and resolve complex technical issues. Collaborate with engineering teams to improve reliability, scalability, and security. Assist with system integrations and technical onboarding activities. Provide...

eDV Cleared Application Support Engineer £500-£600p/day (Outside IR35) Gloucestershire (5 days onsite) Must have active eDV clearance 6 months (rolling contract) We're looking for an experienced Application support engineer with active eDV clearance to join a collaborative onsite team responsible for designing, deploying and supporting infrastructure in a secure environment. This is a hands-on engineering role where you'll work across physical and virtual infrastructure. This role is fully on site and you must be comfortable with this working arrangement! Key responsibilities: Design, build and maintain resilient physical and virtual infrastructure Monitor system health, performance and availability, proactively identifying and resolving issues Automate infrastructure and operational processes using tools such as Ansible Provide technical consultancy on system integrations using REST APIs, SFTP, webhooks and other interfaces Manage the full lifecycle of...

About Us In 2019, the founders were working as engineers solving complex cross-domain problems within government organisations. TwinStream was formed to bring together their collective expertise and experience into a single business, focused on delivering technical excellence and high-quality service to clients. Since then, the company has grown to over 100 team members across the UK, with colleagues working both on-site with clients, hybrid and remotely from home. Details : Employment: Contract (outside of IR35) Rate: £500 - £600 Security Level: Must have live DV clearance Location: 5 days in either Cheltenham About the role As part of our on-site team, you'll play a key role in designing, building, configuring, and maintaining resilient systems that support critical operations. You'll work closely with cross-functional teams to ensure our platforms are scalable, secure, and reliable, and directly with our intelligence community...

The Support Engineer is responsible for supporting and managing the various applications, tools, analytic data related platforms/software, and other business-related to the Kafka platform. Required skills and experience: Contribute to the development and continuous improvement of operational processes, helping to establish scalable best practices within a growing team environment. Demonstrate a strong interest in streaming data technologies and develop subject matter expertise in Apache Kafka. Troubleshoot Linux-based applications by diagnosing and reproducing issues such as resource contention, performance bottlenecks, and network-related problems. Build strong customer relationships by providing exceptional technical support and ensuring successful outcomes through direct engagement. Maintain and apply strong operational knowledge of Kafka, including platform administration, monitoring, and issue resolution. Support and troubleshoot distributed systems...

eDV Cleared Application Support Engineer | £500-£600p/day (Outside IR35) | Gloucestershire (5 days onsite) | Must have active eDV clearance | 6 months (rolling contract) We're looking for an experienced Application Support Engineer with active eDV clearance to join a collaborative onsite team responsible for designing, deploying and supporting infrastructure in a secure environment. This is a hands-on engineering role where you'll work across physical and virtual infrastructure. This role is fully on site and you must be comfortable with this working arrangement! Key responsibilities: Design, build and maintain resilient physical and virtual infrastructure Monitor system health, performance and availability, proactively identifying and resolving issues Automate infrastructure and operational processes using tools such as Ansible Provide technical consultancy on system integrations using REST APIs, SFTP, webhooks and other interfaces Manage the full life cycle of...

Back End Software Engineer - 6 months - Glasgow - Outside IR35 Day rate - Circa £480 Harvey Nash's public sector client are currently looking to recruit a Back End Software Engineer to join their team based Glasgow/Remote for an initial 6-month period. Main Duties: Work across technical teams formed of supplier, contract and permanent resource Develop new features in a secure way in line with industry best-practices Provide production support and support on fixing application issues Identifying production and non-production application defects Train and knowledge share with colleagues Looking ahead for future opportunities or blockers, and ensuring decisions by teams align with the technical direction Identify operational improvements and work to ensure a stable service that can be enhanced Anticipate and mitigate against project challenges or risks Essential Skills: Technology knowledge - Demonstrable experience in the minimum of 4 Of the below:...

eDV Cleared Application Support Engineer | £500- £600p/day (Outside IR35) | Gloucestershire (5 days onsite) | Must have active eDV clearance | 6 months (rolling contract) We 're looking for an experienced Application support engineer with active eDV clearance to join a collaborative onsite team responsible for designing, deploying and supporting infrastructure in a secure environment. This is a hands-on engineering role where you 'll work across physical and virtual infrastructure. This role is fully on site and you must be comfortable with this working arrangement! Key responsibilities: Design, build and maintain resilient physical and virtual infrastructure Monitor system health, performance and availability, proactively identifying and resolving issues Automate infrastructure and operational processes using tools such as Ansible Provide technical consultancy on system integrations using REST APIs, SFTP, webhooks and other interfaces...

Contract Full Stack / Backend Engineer III - Trust & Safety Platforms Duration: 6-Month Contract (with potential for extension) Location: 100% Remote (UK-based) Inside/Outside IR35: Insert IR35 The Opportunity We are looking for a Senior Full Stack / Backend Engineer (Level III) to join the Trust & Safety / Policy Platform team for one of the world's leading, household-name audio streaming platforms. If you are a backend-heavy engineer who enjoys the autonomy of building robust APIs and crafting the internal web tools that power them, this contract is for you. What You'll Do Engineers at Scale: Build and scale the core APIs and services that expose complex policy logic across detection, enforcement, and compliance surfaces. Data & ML Pipelines: Model data for strict auditability, versioning, and efficient querying, feeding structured datasets directly into downstream machine learning models. Empower Internal Teams: Design and implement intuitive,...

Duties:  Responsible for working as a senior software engineer with a squad to ensure quality software deployments and overall application health and performance. Optimizes relationships between the development, quality assurance and IT operations teams. Promotes communication, integration, and collaboration for enhanced software development productivity. Develops infrastructure to incorporate latest technology best practices and improve operational performance. Requires broad technical knowledge and experience across a variety of IT areas, including infrastructure, development, operations, and quality assurance. Level: A Specialist Professional (P4) is a recognized subject matter expert in job area typically obtained through advanced education and work experience. Responsibilities typically include: Managing large projects or processes with limited oversight from manager. Coaching, reviewing and delegating work to lower level professionals. Problems faced are difficult and...

Location Manchester Job type: Contract Salary: ££56.00 p/h Outside IR35 Contact name: Laura Hopson   Contact email: lhopson@select-engineering.net Contact phone: 01245 403 560 Job ref: 37182118 Published: 3 days ago Expiry date: 19 Jul 2026 23:59 Duties: Responsible for working as a senior software engineer with a squad to ensure quality software deployments and overall application health and performance. Optimizes relationships between the development, quality assurance and IT operations teams. Promotes communication, integration, and collaboration for enhanced software development productivity. Develops infrastructure to incorporate latest technology best practices and improve operational performance. Requires broad technical knowledge and experience across a variety of IT areas, including...

My client is seeking an experienced Contract Site Reliability Engineer Team Lead to join their team. This is a hands-on leadership role requiring a strong technical background alongside the ability to lead, mentor, and develop a high-performing SRE function. There will be occasional travel to the client's offices in Central London. This role is paying £475 Per day and is Outside IR35. Responsibilities Provide technical leadership for the Site Reliability Engineering function, driving reliability, scalability, and performance improvements across critical production systems. Lead, mentor, and coach a team of SREs and engineers, fostering a culture of operational excellence, collaboration, and continuous improvement. Remain hands-on with the design, implementation, and support of cloud infrastructure, automation, observability, and platform reliability initiatives. Define, implement, and govern SLOs, SLIs, and error budgets, ensuring alignment between engineering...

Interviewing now for a Software Engineer for a 4-month project (outside IR35.) You will play an integral part of an agile team to enhance, build, and deliver products in a secure, stable, and scalable way. You will have previous experience in Java, Spring Boot, microservices architecture utilising DevOps practices. We operate a highly agile development approach, giving wide scope to be involved with hands-on system-design, test driven development, deployment, and operations. Type: 4 Month Contract Day Rate: Market Rates (Outside IR35) Location: Hybrid/Stockport Start: ASAP Skills Proficient with Java, Spring Boot, Microservices Architecture, whilst automating CI/CD pipelines for build, test and deployment. Cloud experience, implementing docker-based CI/CD pipelines, utilising Kubernetes. Please apply now to be considered for this position.

Backend Engineer - Java/Spring Boot £450 - £500 Outside IR35 / 6 Month Contract London - Hybrid - 1/2 Days Onsite Our client are looking for a Backend Engineer to join a team building scalable, customer-facing digital products. The role focuses on developing Java/Spring Boot services within a GCP environment, building data pipelines, and integrating with a customer engagement platform used in retail environments. You'll need to show where you've worked on highly available, high-traffic systems, collaborating closely with frontend engineers who are integrating booking and appointment functionality. Key Requirements: Strong commercial experience with Java and Spring Boot Experience integrating backend services with third-party platforms and APIs Demonstrable experience working on high-availability, high-traffic applications

Senior Software Engineer x2 - Outside IR35 - Contract (Media Client) About the role Essential: Self-starter, someone who can pick up context quickly, drive outcomes efficiently, and to a high quality Competent in doing high-level designs, solution management, and scoping Understanding of data modelling best practices Ability to translate technical solutions to non-technical stakeholders and bring them on the journey Experience working in an agile delivery environment Experience working with React, TypeScript, Azure, Microsoft SQL, and Databricks (if they don’t have all of these, that’s workable, but be good to understand any they don’t have experience with) Skills & Experience: Backend: Java, Maven, Dropwizard Frontend: TypeScript, React Python AWS, OpenSearch It would be nice if you have AI coding experience, and ideally some familiarity with more traditional ML techniques for things like entity recognition £500-600 per day...

Backend Engineer - Java/Spring Boot £450 - £500 Outside IR35 / 6 Month Contract London - Hybrid - 1/2 Days Onsite Our client are looking for a Backend Engineer to join a team building scalable, customer-facing digital products. The role focuses on developing Java/Spring Boot services within a GCP environment, building data pipelines, and integrating with a customer engagement platform used in retail environments. You'll need to show where you've worked on highly available, high-traffic systems, collaborating closely with frontend engineers who are integrating booking and appointment functionality. Key Requirements: Strong commercial experience with Java and Spring Boot Experience integrating backend services with third-party platforms and APIs Demonstrable experience working on high-availability, high-traffic applications

AWS Data/DevOps Engineer | Fully Remote | Up to £800 per day | Outside IR35 Brand new contract with an AI/ML start-up approaching a critical go-live phase. Initial 6-week engagement with strong potential for extension. The role will be a mix of hands-on engineering and architecture, focused on improving and optimising the company's real-time data platform ahead of launch. A large part of the work will involve reviewing and enhancing their existing Kafka, Flink, and Kubernetes estate, helping ensure it is scalable, reliable, and production-ready. For this contract, you'll need experience with: AWS EKS Kafka Flink (or equivalent real-time stream processing technologies) Kubernetes Python or Java Real-time data pipelines The client can move quickly, the interview process is a single stage, and they're looking for someone who can start immediately.

Backend Engineer - Java/Spring Boot £450 - £500 Outside IR35/6 Month Contract London - Hybrid - 1/2 Days Onsite Our client are looking for a Backend Engineer to join a team building scalable, customer-facing digital products. The role focuses on developing Java/Spring Boot services within a GCP environment, building data pipelines, and integrating with a customer engagement platform used in retail environments. You'll need to show where you've worked on highly available, high-traffic systems, collaborating closely with Front End engineers who are integrating booking and appointment functionality. Key Requirements: Strong commercial experience with Java and Spring Boot Experience integrating Back End services with third-party platforms and APIs Demonstrable experience working on high-availability, high-traffic applications