151 to 175 of 332 Java Jobs in London

What Were Looking For SDET with experience as a Performance Tester , ideally in a consultancy or client-facing environment. Proficiency in at least one object-oriented programming language (e.g., Java, Python, C#, or JavaScript/TypeScript) for writing clean, maintainable test code and frameworks. Strong knowledge of performance testing methodologies, tools, and scripting . But equally happy with functional test More ❯

scale. Who You Are Experienced Software Engineer, specialising in Android development, and are open to working across different platforms. You have experience in designing and building distributed services in Java/Kotlin. You are familiar with agile practices, testing methodologies, and CI/CD. You are comfortable working with BQ, data analysis, and SQL queries in order to make data More ❯

deliver end-to-end solutions. Continuously improve systems, processes, and tooling — from testing and observability to introducing new technologies and AI-driven enhancements. What you bring Strong experience with Java , Spring Boot, and API development in enterprise-scale environments. Hands-on knowledge of SQL and NoSQL databases, asynchronous processing, and cloud-native systems. Background in continuous delivery, testing methodologies, and More ❯

one or more of the following technologies: HTML/CSS/Javascript/Node/Typescript React Native/Redux Native development on iOS and/or Android (Swift, Java) Figma Netlify Python Degree in Computer Science, similar technical field of study or equivalent practical experience Interest and ability to learn other coding languages as needed You love problem solving More ❯

diversity, and technical excellence What you'll bring Deep extensive experience of Android application development Established and highly skilled in all aspects of software engineering Strong programming skills in Java and Kotlin Solid understanding of Android architecture patterns and best practices Experience with video streaming protocols (HLS, DASH) Familiarity with ExoPlayer (bonus) Agile development experience with CI/CD pipelines More ❯

diversity, and technical excellence What you'll bring Deep extensive experience of Android application development Established and highly skilled in all aspects of software engineering Strong programming skills in Java and Kotlin Solid understanding of Android architecture patterns and best practices Experience with video streaming protocols (HLS, DASH) Familiarity with ExoPlayer (bonus) Agile development experience with CI/CD pipelines More ❯

in Azure. Ideally demonstrated through architecture design, delivery leadership, and complex problem resolution. Knowledge of at least one programming languages and its frameworks, including CI/CD tooling (Python, Java, .NET, TypeScript) Track record of building technical practices or capability teams within a consulting or Professional Services organization. Strong pre-sales experience, including bid support, solution shaping and presentation, and More ❯

diversity, and technical excellence What you'll bring Deep extensive experience of Android application development Established and highly skilled in all aspects of software engineering Strong programming skills in Java and Kotlin Solid understanding of Android architecture patterns and best practices Experience with video streaming protocols (HLS, DASH) Familiarity with ExoPlayer (bonus) Agile development experience with CI/CD pipelines More ❯

masters student who is eligible for an internship role in 2026, with possibility to convert to full time after the internship. Have experience programming in Python, C/C++, Java and/or experience with statistical analysis, numerical programming, or machine learning in Python, Pandas, R. Are an ambitious entrepreneur with a track record of exceptional intellectual achievement. Are a More ❯

to support modelling and data analytics · As an AWS Solutions Architect or Lead, or similar · Strong Python experience or other object oriented or a functional programming language such as Java, Scala, C#, or R · Data warehousing – building operation ETL data pipelines across several sources, and constructing relation and dimensional data models · Built and maintained scalable infrastructure through IaC frameworks (e.g. More ❯

Drive the implementation of strategic enhancements that improve overall system performance and efficiency. Skills, Knowledge and Experience You have expert-level proficiency in a core programming language like Python, Java, or Scala, with an emphasis on AI/ML data processing. You possess experience with cloud data services and technologies, ideally within the GCP ecosystem (e.g., Dataflow, Pub/Sub More ❯

techniques such as infrastructure as code and CI/CD Experience with graph-based data workflows using Apache Airflow Programming skills in one or more of the following: Python, Java, Scala, R and experience in writing reusable/efficient code to automate analysis and data processes Experience in processing large volumes of data using parallelism techniques/tooling, such as More ❯

Join our dynamic Technology team as a Java Fullstack Engineer AVP level, and be involved in shaping the future of financial crime prevention through the transformative "Integrated financial crime program". Hit Apply below to send your application for consideration Ensure that your CV is up to date, and that you have read the job specs first. This multiyear group … wide initiative is designed to strengthen regulatory compliance, streamline client interactions via unified infrastructure and drive operational efficiency through cutting edge technological advancements.The ideal candidate would be an experienced Java Fullstack Engineer with passion for transition into architecture, ready to apply technical expertise to strategic system design.The Integrated Financial Crime (IFC) portfolio is a multi-faceted Financial Crime programme of … capabilities across all lines of defence and empower our partners, colleagues and customers to identify and prevent Financial Crime by raising awareness of the risks.To be successful as a Java Fullstack Engineer, you should have:Experience in full-stack development with expertise in building dynamic, responsive, and reusable componentsWorked on Enterprise Case Management Life cycle applications involving backend server builds More ❯

Job Title: ICON Payment Framework (IPF) Java Developer Location: Manchester Duration : 31/12/2025 Rate: £500 per day INSIDE IR35 We are looking for a highly skilled ICON Payment Framework (IPF) Developer with strong Java expertise to join our Payments Technology team. The successful candidate will play a key role in designing, developing, and maintaining payment processing solutions … internal security, risk, and regulatory frameworks (e.g., PSD2, ISO 20022). • Maintain technical documentation and contribute to knowledge sharing across teams. Required Skills & Experience: • 5+ years of experience in Java development within financial services. • 2+ years of hands-on experience with Finastra ICON Payment Framework (IPF). • Strong understanding of payment processing systems, messaging standards (SWIFT, ISO 20022, SEPA, CHAPS More ❯

At Mindera, we craft software with people we love. We're looking for a Principal Java Engineer with strong Retail experience who can join our crew Please note: This is a six month contract that sits outside IR35. You will be required to work in Paddington 3 days a week. What does the role involve? Lead technical deep dives and … knowledge sharing in the teams, anticipating challenges and proposing solutions Start influencing product and business decisions Hands-on Software Development: Write high-quality Java code using frameworks such as Spring Boot or Micronaut. Build robust services that support secure, high-volume payment transactions. Develop integrations with acquiring banks, payment gateways, and fraud detection tools. Cloud & DevOps Practices: Build and support … support. Continuous Improvement: Continuously improve platform reliability, performance, and cost-efficiency. Stay up-to-date with technology trends and proactively identify innovation opportunities. Requirements Proven experience as a Principal Java Engineer in backend-heavy environments in teams having multiple levels of engineering. Strong experience in Java 17+, ideally with experience in using Spring Boot or Micronaut. Kotlin experience is a More ❯

Sanderson are working closely with a SME based in the London who are looking to grow their Java Developer capability. The company are looking to modernise how organisations manage and derive data. They are fast growing and looking for dynamics people to help them grow the business and capability. Skills required for the role: Strong experience in Java software engineering. More ❯

Do you have 3-5 years experience and are looking for your next challenge? Have you been developing with Core Java without the use of frameworks? Mid Java Developer – Leading FinTech Location – hybrid in London 3 days a week Salary – up to £90k + bonus We are working with our long-term partners on the hunt for numerous Mid-level … Java Developers as they continue to expand various teams. They began their journey as a market-leading FinTech disruptor and after many years at the forefront of their field, have recently been acquired by a prominent capital market. This is an excellent opportunity for someone looking for their 2nd or 3rd job in software development as they are looking for … someone with 3-5 years prior experience, with the potential to rapidly progress into a senior position. Experience they are looking for in Mid Java Developers: Core Java Developing software from scratch WITHOUT the use of frameworks e.g. Spring Multithreading TDD, CI/CD, Paired-programming environment Data structures, algorithms, threads Working in a modern FinTech environment e.g. startup is More ❯

Senior Software Development Engineer in Test (SDET) - Java, JBehave/Cucumber, Microservices Perm 3 days a week on-site in Farringdon, London Up to £75,000 per annum A rapidly growing fintech organisation is transforming access to finance for small and medium-sized businesses click apply for full job details More ❯

management experience Ability to influence cross-functional teams and senior stakeholders Extensive experience building complex Android applications System design and architecture capabilities Application accessibility Strong development experience using Kotlin, Java, and Jetpack Compose Experience with Agile methodologies, TDD, and CI/CD practices This is an excellent opportunity to help shape the future of digital banking and contribute to a More ❯

we use) but you should be enthusiastic and willing to learn new things. Experience in any of the following would be an advantage: Software development in Go, C, C++, Java, Scala, C# or Swift. Kernel and device driver development for Windows, Linux, or Mac. Systems Analytics; Dynamic tracing and performance analysis tools such as Instruments, VTune, DTrace and eBPF. Observability More ❯

User Management Resource Management Application Management Proficient in Hawk – writing rulebases for infrastructure monitoring Administration experience with RV, RVRD Technical & Development Skills Proficiency in Linux commands Expertise in Core Java & J2EE design patterns Strong understanding of SOA , Web Services (WSDL, SOAP) OOAD, UML , RUP modeling expertise Extensive experience with XML technologies: XML, XSD, DTD, XSLT, XPath Database & Application Servers Experience More ❯

direction Compensation: Up to £150k (depending on exp.), equity, great perks (daily lunch, private health cover, 7% pension) 🚀 What they’re looking for Strong programming skills (Python, C++, Golang, Java, or Rust) A practical mindset - you enjoy solving tough, real-world problems Comfortable travelling and working hands-on with end users Their stack: Rust & Typescript (Happy to upskill) 📍 London | Hybrid More ❯

knowledge gained through experience. Knowledge of Software Developing Tools and Concepts at Level 3 and 4. Knowledge and application of the programme languages C#, HTML5, CSS3, JavaScript, SQL, Python, Java, PHP, Mobile app design & Development. Creativity and flexibility to develop and enhance teaching materials in order to engage learners and respond to learner interests. This is an exciting opportunity for More ❯

living, by providing affordable access to clean energy for the charging of electric vehicles. In this position, they are looking for experience in: 3+ years commercial experience JVM development - Java, Kotlin or Scala (Bonus) if you have already worked with Kotlin Microservices architecture Public cloud technologies e.g. AWS Have worked in modern, product-focused tech companies This is a fantastic More ❯

Fixed Income. Partner with trading and technology teams across London and Amsterdam to deliver cross-asset solutions. Support continuous improvement and automation across the trading workflow. Key Requirements Strong Java development experience, ideally within rates, swaps, or IRS. Proven background working with trading systems or front-office technology. Solid understanding of fixed income pricing, market data, and risk fundamentals. Minimum More ❯