226 to 250 of 542 Java Jobs in London

# Sr. Java DeveloperDeveloperLondonAugust 20, 202588400 - 98700/monthFull TimeApplication ends: **May 12, 2026**Apply Now### Job DescriptionA Sr. Java Developer is responsible for designing, developing, and maintaining high-quality Java applications. They collaborate with cross-functional teams to deliver scalable and efficient solutions, troubleshoot complex issues, and optimize system … capabilities, and staying updated with emerging technologies are essential for driving innovation and ensuring seamless application performance.### Key Responsibilities* Design, develop, and implement complex Java-based software solutions effectively.* Collaborate with team members to define project requirements accurately.* Optimize application performance for scalability, security, and efficiency consistently.* Troubleshoot and resolve ...

systems. You will work alongside exceptional engineers and tackle complex technical challenges in a collaborative culture. The ideal candidate has strong skills in C++, Java, Rust, or Python and a technical background. The role offers a competitive salary of up to £150k with meaningful equity, alongside benefits like private health ...

looking for a Senior Software Engineer II to join their team in Greater London. The role focuses on designing and maintaining scalable tools using Java and Spring Boot while collaborating across teams to drive innovative solutions that enhance customer value. With a starting salary range ...

leveraging AI/ML technologies. Ideal candidates will have extensive experience in software engineering and integrating AI capabilities, with strong programming skills in Python, Java, or Go. The firm values diversity and offers numerous professional growth opportunities. #J-18808-Ljbffr ...

enhance reliability, contributing to disaster recovery strategies, and maintaining high-quality documentation. The ideal candidate will have experience in programming (Python, Golang, or Java) and cloud services (GCP or AWS), ensuring exceptional user experiences while tackling complex challenges. This position offers a highly competitive salary and numerous employee benefits. #J ...

data infrastructure Develop quantitative research platforms and tools Optimize performance-critical financial applications Requirements: 2+ years software engineering experience Strong C++/Python/Java skills Trading experience preferred but not essential Our network: Pay: $150K-$800K+ based on experience Locations: London, Remote Focus: Trading platforms, risk systems, data infrastructure ...

Senior Android Engineer to help build secure, high-quality native Android applications for a major public sector programme. Key Skills Kotlin (preferred) and Java Android SDK REST API integration MVVM & Jetpack Components Google Play Console & Release Management Mobile performance optimisation Secure coding practices GitHub Copilot or other AI-assisted development ...

Java Engineer - FS/Payments London – Hybrid (1 day per week onsite) Are you a senior/lead hands-on Engineer who thrives in Banking, Financial Services or Payments environments? Do you enjoy building low-latency, high-throughput distributed systems where correctness, resilience, and performance really matter? This … near-zero downtime. Design and implement high-throughput, low-latency systems processing millions of real-time payment events Build event-driven architectures using modern Java and reactive frameworks Work extensively with non-blocking I/O, asynchronous flows, back-pressure, and concurrency Contribute to system and API design, focusing ...

Java Technical Lead role in the business services industry focuses on leading technology teams to deliver robust and scalable solutions. This permanent position is ideal for someone with a strong technical background and a passion for driving innovation. Client Details This opportunity is with a medium-sized organisation operating within … reliability. Stay updated with emerging technologies and recommend their integration where appropriate. Contribute to strategic planning within the technology department. Profile hands-on Java development experience; expert-level command of modern Java (17+) is non-negotiable. 2+ years leading engineering teams or operating as a tech lead/lead engineer ...

transactional or financial dat a.Fluency i n Sca la (Scio/Dataflow) and comfort with cloud-native development o n G CP. (Experience with Java , Pyth on, and BigQuery is a plus ).Strong communication skills to collaborate with Finance, Product, and Engineering teams to ship auditable, reliable systems that meet ...

Mentor engineers and promote engineering best practices Requirements 7+ years of software engineering experience Strong background in distributed systems and backend development Proficiency in Java, C++, Rust, or another server-side language Experience building and operating large-scale production systems Strong understanding of performance optimisation, concurrency, and system design Excellent ...

maintainable, production-quality Python code What we're looking for: 5+ years' software engineering experience Strong Python development skills Polyglot Software Engineer (C#/Java) Regulated Industry Experience (Banking/Insurance/Pensions) Experience building APIs, integrations, and distributed systems Comfortable working directly with customers and stakeholders Passion ...

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 ...

across the full migration lifecycle. Key Responsibilities: Design and implement Teamcenter migration strategies and data migration frameworks Develop custom migration utilities using ITK, SOA, Java, C/C++, Python or Shell scripting Perform data extraction, transformation, validation, mapping and reconciliation Support migration planning, testing, cutover and deployment activities Troubleshoot migration ...

across the full migration lifecycle. Key Responsibilities: Design and implement Teamcenter migration strategies and data migration frameworks Develop custom migration utilities using ITK, SOA, Java, C/C++, Python or Shell scripting Perform data extraction, transformation, validation, mapping and reconciliation Support migration planning, testing, cutover and deployment activities Troubleshoot migration ...

work. Tech Stack Expert Python, advanced SQL, deep Linux knowledge PostgreSQL, Snowflake Apache Kafka, Apache Airflow Django, Flask or FastAPI TDD, BDD, pair programming Java familiarity a plus What They Are Looking For Principal or Staff level Python engineer with strong leadership skills Degree in Computer Science or related field ...

work. Tech Stack Expert Python, advanced SQL, deep Linux knowledge PostgreSQL, Snowflake Apache Kafka, Apache Airflow Django, Flask or FastAPI TDD, BDD, pair programming Java familiarity a plus What They Are Looking For Principal or Staff level Python engineer with strong leadership skills Degree in Computer Science or related field ...

work. Tech Stack Expert Python, advanced SQL, deep Linux knowledge PostgreSQL, Snowflake Apache Kafka, Apache Airflow Django, Flask or FastAPI TDD, BDD, pair programming Java familiarity a plus What They Are Looking For Principal or Staff level Python engineer with strong leadership skills Degree in Computer Science or related field ...

work. Tech Stack Expert Python, advanced SQL, deep Linux knowledge PostgreSQL, Snowflake Apache Kafka, Apache Airflow Django, Flask or FastAPI TDD, BDD, pair programming Java familiarity a plus What They Are Looking For Principal or Staff level Python engineer with strong leadership skills Degree in Computer Science or related field ...

accountable and sustainable cloud provider🌳 What they're looking for in a Lead Software Engineer: Tech agnostic but preferable experience working with Golang, Rust, Java and/or C/C++. In-depth knowledge of distributed systems, building solutions at scale where performance, reliability and availability are key considerations. Confident ...

opportunity for someone looking to drive meaningful change rather than maintain the status quo. Ideal candidates will have: Extensive experience in C#/.NET, Java, or Python Experience building and enhancing CI/CD pipelines and automated test frameworks The confidence to manage stakeholder expectations and communicate technical risk ...

skills and experience are required for this role: Technically minded. Comfortable both as architect and hands-on developer. Strong and experienced C++ developer. Capable Java developer with coding experience in the workplace. Strong hands-on experience with multi-threading, and real-time systems. Using SQL, preferably MS SQL Server. Experience ...

year of experience working as a software engineer. Paid full time employment. Knowledge and commercial experience with at least one of the following languages: Java, C#, Python (with OO), C++ Knowledge and some commercial experience of one non managed memory language Ideally some exposure to HPC Ideally some experience working ...

focus on infrastructure and productionisation (not just model training) Strong Python skills, plus experience with a robust production language such as C++ or Java Solid understanding of data pipeline performance trade-offs: I/O, compute, batching, memory layout Hands-on PyTorch experience: training pipelines, data loading, preprocessing Practical distributed ...

range of first class facilities. About you: You have expert level Python skills and can also read and understand C++ code (will also consider Java experience) You have experience with Python data libraries e.g. NumPy, Pandas You have experience of working on MFT (Mid-Frequency Trading systems) You have strong ...