1 to 25 of 127 Java Jobs in the South East

Senior Backend Java Engineer

Hiring Organisation
Sanderson
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£550 - £575 per day
Senior Backend Java Engineer Rate: £500 - £575 a day pay inside Location: Remote, with expectations to attend onsite meetings when required (1-2 a month) Duration: 6 months+ We are looking for a hands-on Senior Backend Java Engineer with recent experience building, testing, and deploying production-grade APIs … whose recent experience is mainly support, coordination, architecture-only, or line management. Essential skills and experience Strong hands-on commercial coding experience with modern Java (Java v17 min, v21 LTS or newer preferred) Strong experience with Spring Boot Experience building REST APIs/microservices from scratch Strong testing skills using ...

Senior Java Developer

Hiring Organisation
G.R.E. Recruitment Limited
Location
Guildford, Surrey, South East, United Kingdom
Employment Type
Permanent
Salary
£85,000
Senior Java Developer Role - Minimum 6 years exp - Defence Sector - All Candidates must have a UK Passport to satisfy Government/MoD security vetting procedures - 5 days Onsite in Guildford based office - £50,000 - £85,000 + benefits (DOE) Essential Exp: Java, GUI Development using Java Fx or Java Swing … Linux G.R.E. Recruitment is delighted to partner with a leading Defence Sector organisation who are looking to add a Senior Java Developer to their growing team in their Guildford office. In this role you'll be joining an experienced Java team working on user interfaces, developing cutting edge sonar systems ...

Software Engineer

Hiring Organisation
CBSbutler Holdings Limited trading as CBSbutler
Location
Romsey, Hampshire, United Kingdom
Employment Type
Permanent
Salary
£60000 - £65000/annum Benefits package
effective communication across teams. What You'll Bring Degree in a STEM subject or equivalent experience Experience with some of the following: Languages: Python, Java, Rust, JavaScript Cloud: AWS (Azure/GCP beneficial) Containers: Docker, Kubernetes, GPU containerisation Architecture: Microservices, serverless, APIs, edge compute, pub/sub systems (Kafka, MQTT ...

Senior Java Software Engineer

Hiring Organisation
Bentley Whitaker Search and Selection
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£70,000 - £85,000 per annum
Senior Java Software Engineer - Java Developer, Python, AWS, MySQL, NoSql, REST APIs, Microservices, Machine Learning, Artificial intelligence (Hybrid - 3 days a week in the office - Notting Hill) Description for the Senior Java Software Engineer role:- You will be joining a fast-growing, research-driven company building an artificial intelligence using … machine learning techniques. My client is revolutionising their industry with a track record of building things that others have ruled out as impossible. The Java Software engineer will join a very bright, talented team of engineers with the guidance of technologists who have help build up some of the best ...

Java Developer

Hiring Organisation
Syntax Consultancy Ltd
Location
Reading, Berkshire, United Kingdom
Employment Type
Permanent
Salary
£75000/annum + Hybrid Working + 10% Bonus + Health Care Pl
Java Developer (SC Eligible or SC Cleared) Reading (Hybrid) Permanent to £75,000 (DOE) Java Backend Developer needed SC Eligible (Lived & worked UK 5 years) or active SC Security Clearance for a permanent position based in Reading (Hybrid). Start ASAP in May 2026. Hybrid Working – primarily working from home … work with a leading global IT transformation business specialising in delivering large-scale Government digital modernisation projects. Key skills, experience + duties to include: Java developer with strong back-end Java experience to develop new features for a portfolio of Government Clients. Java 17/21, Spring MVC Framework, Java ...

Oracle Developer

Hiring Organisation
GIS Recruiter Ltd
Location
Reading, Berkshire, United Kingdom
Employment Type
Permanent
Salary
£45000 - £55000/annum + Benefits (Neg)
Server Experience designing and consuming RESTful APIs/REST API services Proficiency in at least two of the following programming languages: Python Java JavaScript .NET (C#) Experience working in Agile/Scrum environments Excellent problem-solving skills and attention to detail Desirable Skills Experience with cloud platforms (Oracle Cloud ...

Technical Lead/Engineer Lead - London

Hiring Organisation
Evolve Recruitment
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£71,000 - £113,000 per annum
Tech stack required ideally: You can expect to work with the following technologies to ensure scalable, high-performance applications: Programming Languages: JavaScript/TypeScript, Java, C# Frameworks: Vue/Angular/React/Node/Next, Spring/Spring Boot, .NET/ASP.NET Cloud platforms: AWS, GCP, Azure CI/ ...

Senior Full Stack Software Engineer - Space

Hiring Organisation
Hays
Location
Didcot, Oxfordshire, UK
applications in the space domain or adjacent industries. * 5+ years of full stack development experience. * 5+ years of object-oriented programming experience (preferably in Java, Python, or C++). * 5+ years of experience developing frontend applications with modern frameworks (preferably React). Highly Desirable skills * strong demonstrable experience ...

Java Engineer

Hiring Organisation
Profile 29
Location
South East London, London, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£50,000
Java Engineer Salary to £ 45 k + Company Options Scheme Hybrid working between your home, their offices (London Vauxhall) & client sites. NB: Please only apply if you are a UK National and able to achieve SC (ideally DV) clearance i.e. you have at least 5 years residency … anywhere but will most likely be in & around London. Responsibilities Design, develop, and deploy Camunda-based process and decision automation solutions Implement and integrate Java-based microservices, APIs, and connectors within orchestration flows Translate BPMN and DMN models into executable workflows and reusable components Collaborate closely with analysts and service ...

Java Software Engineer

Hiring Organisation
Sanderson
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
Salary negotiable
Java Developer - multiple roles £510/day Inside IR-35 6 month contract Active SC required Remote with occasional travel to London for client meetings only - expensable We are looking for experienced fullstack Java Software Engineers to support projects across UK Government and Law Enforcement. You'll work in multidisciplinary … hands-on and focused on building high quality software using modern engineering practices. What you'll do You'll design, build and maintain Java based microservices, applying test driven development and following established engineering standards. You'll work with technologies including Java, Spring Boot, Postgres, Kafka, Docker, React and AWS. ...

Senior Java Developer - Multithreading/Caching

Hiring Organisation
Harvey Nash
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£700 - £800 per day
Senior Java Developer - Multithreading/caching - sought by leading investment bank based in London - Contract *inside IR35 - umbrella* Key Responsibilities Develop and maintain high-performance backend services for complex data processing workloads. Design scalable architectures for large-volume calculations and data pipelines. Work closely with cross-functional teams to define … joins, and large/complex datasets. Leverage AI tooling to enhance productivity in coding and system design. Required Skills & Experience 8+ years ' experience in Java backend development (Java 17+). Degree in Computer Science, Software Engineering, or related field. Strong expertise in Java + Spring Boot/Spring Data/ ...

Lead Full-Stack Java Developer - SC Cleared

Hiring Organisation
Searchability NS&D
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£80,000 - £95,000 per annum
Lead Full Stack Java Developer - SC Cleared NEW PERMANENT OPPORTUNITY FOR A LEAD FULL-STACK JAVA DEVELOPER IN LONDON WITH SC CLEARANCE Location: London (Hybrid) Salary: £80,000 - £95,000 per annum Clearance: Active SC Clearance required To apply: email The Company Join a specialist technology consultancy delivering complex, mission … modernise secure systems that underpin national operations - tackling some of the most demanding challenges in government technology. The Role As a Lead Full Stack Java Developer , you will guide a small team of engineers while remaining hands-on in the design and development of high-performance, secure applications. ...

C#/.NET Full Stack Engineer

Hiring Organisation
83zero Ltd
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£46,000 - £55,000 per annum
agile environments Desirable Experience Docker, Docker Compose Terraform or other IaC tools EF Core, relational DB experience NoSQL (MongoDB, Cosmos DB) Microservices in Java/JS/TS Experience with LLM/AI integration frameworks (e.g., LangChain) Familiarity with modern design systems Additional Information A flexible benefits package is available ...

Chief Technology Officer (CTO)

Hiring Organisation
Jobleads-UK
Location
Havant, England, United Kingdom
practices (CI/CD, automated testing, DevOps, cloud‐native architectures). Broad knowledge of the following technology stacks (e.g., JavaScript/TypeScript, Python, .NET, Java, Low‐Code) and experience overseeing full‐stack development. Experience with cloud platforms (AWS, Azure etc.). Strong understanding of data, security, privacy, and compliance considerations. ...

Java Developer

Hiring Organisation
1X2 Network
Location
Brighton, England, United Kingdom
Network, the multi-award winning iGaming supplier, is looking for a Java Developer. This is an opportunity to join a highly creative, rapidly expanding independent software company. About 1X2 Network 1X2 Network has pioneered iGaming development for over 2 decades and now encompasses a number of game development studio subsidiaries. … office locations in Shenfield, Hyderabad and Malta; as well as remote employees around the world. The Position We are seeking a talented Mid-Level Java Developer to join our dynamic team. The successful candidate will be responsible for designing, developing, and maintaining Java-based applications, contributing to the full software ...

Principal SRE - Site Reliability

Hiring Organisation
CBSbutler Holdings Limited trading as CBSbutler
Location
Wokingham, Berkshire, United Kingdom
Employment Type
Contract
Contract Rate
£500 - £525/day
Ensure compliance with security, governance, and regulatory standards Required Skills & Experience Strong background in software engineering for large-scale distributed systems Proficiency in Golang, Java, or Python Hands-on experience with AWS, Azure, or GCP Deep knowledge of Kubernetes and container orchestration Proven experience with CI/CD and infrastructure ...

Senior Software Developer

Hiring Organisation
Harnham - Data & Analytics Recruitment
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£75,000 - £85,000 per annum
data specialists on production solutions Contribute to technical decisions and coding standards YOUR SKILLS AND EXPERIENCE 5+ years commercial software development experience Strong Java and Spring/Spring Boot background Frontend experience with Angular (React or Vue also acceptable) Experience building microservices and APIs Cloud experience (Azure preferred, AWS acceptable ...

Graduate Software Developer | 50,000–60,000 | Hybrid (London / Remote).

Hiring Organisation
IT Graduate Recruitment
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£50,000 - £60,000 per annum, OTE
Maths, etc.) from one of the top-ranked universities in the UK or equivalent Strong coding ability in at least one of: Python, C++, Java, or JavaScript Curiosity and problem-solving mindset — you love figuring things out Comfortable learning new technologies quickly Bonus: experience with Git, SQL, or personal projects ...

Lead Developer

Hiring Organisation
Astute People
Location
Milton Keynes, Buckinghamshire, United Kingdom
Employment Type
Permanent
Salary
£60000 - £70000/annum
least 3 years' software development experience, progressing into senior or lead-level roles Strong full-stack development skills (e.g. React, Angular, Node.js, Python, Java, APIs) Strong understanding of relational databases (e.g. PostgreSQL or similar) Experience working with cloud platforms (AWS, Azure, or GCP) Practical experience using AI-assisted development tools ...

Senior DevOps Consultant

Hiring Organisation
Exponential-e
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
Salary negotiable
information technology practices and products to provide objective and credible opinions and guidance Experience of Linux/RHEL v6x, 7x and 8x JavaScript, SQL, Java, Python and Unix coding Scripting knowledge AGILE JIRA Communicate with impact and empathy and adapt style to suit the situation OpenText Service Manager and/ ...

Staff Backend Engineer (C++/Java/Go/Python/Typescript)

Hiring Organisation
Understanding Recruitment
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£150,000 - £170,000 per annum
Fastest Growing Start-up in the UK | Defence We are partnered with one of the UK's fastest-growing start-ups. They are a very technically focused group building cutting-edge decision-making technology. The ...

Java 8 Software Engineer | £500 – £550 | Inside IR35 | 6 Months | Hybrid Remote

Hiring Organisation
Opus Recruitment Solutions Ltd
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£500 - £550 per day
Java 8 Software Engineer | £500 – £550 | Inside IR35 | 6 Months | Hybrid Remote We’re recruiting for experienced Java Engineers with strong experience working with Legacy Java versions (Ideally Java 8). This 6-Month contract is determined as Inside IR35 and is offered on a Hybrid remote basis requiring …/2 days per week of onsite work in Swindon or London. Key Requirements Strong commercial experience with Java 8 or similar legacy Java frameworks Solid skills in SQL, Spring Boot, and Hibernate development practices Proven ability to build microservices and reliable RESTful APIs Hands-on experience applying ...

Java React Fullstack Developer - VP

Hiring Organisation
Bond McKenzie
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£85,000 - £115,000 per annum
Senior Java Fullstack Developer - VP level - Investment Technology/Finance An industry leading global financial and technology organisation are looking for Senior Java Software Engineers with 7+ years’ experience, who have some experience in React or similar, plus modern JavaScript/TypeScript, who like to innovate and be part … tolerant software systems using API-First principles. Design, develop, and implement secure, scalable, and reliable micro-services to deliver client-facing applications using a Java backend and React frontend. Optimize performance and reliability through continuous testing, debugging, and refinement. Stay abreast of industry trends and emerging technologies to drive innovation ...

Full Stack Engineer

Hiring Organisation
Addition+
Location
Milton Keynes, Buckinghamshire, UK
Main Skills Needed: Expert knowledge of JavaScript, TypeScript, React (Hooks, Redux), HTML5 and CSS/SASS. Strong experience designing backend services in Kotlin or Java with REST and OpenAPI. Proven experience in system design at scale, simplifying complex architectures. Understanding of CI/CD and DevOps principles (Azure DevOps experience ...

Technical Architect

Hiring Organisation
Meritus Talent
Location
Andover, Hampshire, UK
Employment Type
Full-time
LDAP. Strong understanding of Agile methodologies and working within multi-disciplinary teams. Experience in web application design and delivery. Background in secure development using Java or .NET frameworks. Ability to communicate effectively with senior stakeholders and clients. Strong problem-solving skills with a solution-oriented mindset. Active SC Clearance. Experience ...