151 to 175 of 231 Java Jobs in London

building mission-critical airline operations software, from load optimisation and weight and balance to regulatory-compliant load sheets. Today the team works mainly in Java microservices with a TypeScript and Angular front end, but engineers move between languages as projects change, so we are looking for engineers who think … Engineering, Information Systems or a related field, plus 3+ years in software development within Agile product teams (5+ years preferred) Strong commercial experience in Java or a comparable language, plus production experience in at least one other, for example TypeScript, Kotlin, Python, Go or C# Comfortable working across back ...

sophisticated technical environments. THE TECHNOLOGY STACK We're particularly interested in engineers with experience across several of the following technologies: Software Engineering & Programming Python, Java, Go (Golang) or JavaScript Bash scripting and automation Production-level software development Debugging, performance optimisation and troubleshooting Software engineering principles and distributed systems architecture Cloud … Kubernetes, Docker and containerised production environments. Experience building, maintaining and supporting large-scale infrastructure or distributed systems. Proficiency in at least one of Python, Java, Go or JavaScript. Strong Linux, troubleshooting and systems engineering capabilities. Experience improving system reliability through automation and engineering best practices. A Computer Science, Software Engineering ...

ADRs), run design reviews, and work with the Technology Design Authority (TDA) so that application-level decisions are traceable and consistent. Engineering standards: Define Java coding standards covering exception handling, stream/resource handling, structured logging (Application Insights) and security-first practices. Automate them through project templates, linters … embed automated testing (unit, integration, contract) into the standard delivery pipeline. The Ideal Candidate Significant experience in software engineering, with substantial production experience in Java and Spring Boot and in microservices architecture. Proven experience designing applications at component and code level, and documenting them (C4 model, LLD, ADRs). Experience ...

nature of these opportunities candidates must already hold DV level security clearance*Roles available:Business ChangeBusiness AnalystSolutions ArchitectCyber EngineerSystems engineerScrum MasterDevelopers (Java, C++ or Python)Automation TesterReasonable Adjustments:Respect and equality are core values to us. We are proud of the diverse and inclusive community we have built ...

Ownership of reliable, maintainable production software. Rates experience is preferred, but candidates from equities, FX and other electronic trading backgrounds are welcome. Python and Java are also used within the team, although C++ is the primary requirement for this position. Why consider the role? Direct involvement in algo trading strategy ...

What You Bring Degree (BSc/MSc) in relevant field 5+ years hands-on software development Strong in Go, C/C++, Rust or Java 3+ years building or running large-scale infrastructure, distributed systems or networks Solid grasp of cloud, container orchestration and distributed data systems Proven technical design ...

maintain complex integration processes using StuTalk. Experience integrating SITS with multiple third-party applications and services. Strong PL/SQL development experience. Experience with Java or another programming language. Experience developing and supporting multiple data integrations. Knowledge of APIs, web services, middleware or ETL processes. Experience working with relational databases ...

relevant experience, including part-time roles A grounding in operating systems, PC and electronic hardware, networks and cloud Some scripting or programming in Python, Java, SQL or similar A clear, customer-focused approach and an understanding of how much customers rely on the service you support Desirable: electro-mechanical devices ...

relevant experience, including part-time roles A grounding in operating systems, PC and electronic hardware, networks and cloud Some scripting or programming in Python, Java, SQL or similar A clear, customer-focused approach and an understanding of how much customers rely on the service you support Desirable: electro-mechanical devices ...

relevant experience, including part-time roles A grounding in operating systems, PC and electronic hardware, networks and cloud Some scripting or programming in Python, Java, SQL or similar A clear, customer-focused approach and an understanding of how much customers rely on the service you support Desirable: electro-mechanical devices ...

code quality, security, and operational practices.Basic qualifications- Experience (non-internship) in professional software development- Experience programming with at least one modern language such as Java, C++, or C# including object-oriented design- Experience designing or architecting (design patterns, reliability and scaling) of new and existing systems- Experience with full software ...

Chartered Institute for IT. Be fully conversant with the languages in the specification eg, Python or C based languages such as C, C#, C++, Java Desirable You will be a qualified teacher or hold an equivalent teaching qualification such as Cert Ed, C&G 7404, PTTLLS, CTLLS, DTLLS ...

role Design and deliver full stack end-to-end digital journeys, covering customer experience, APIs, integrations, data, security and production support. Build and improve Java and Spring Boot microservices, with a strong focus on resilience, scalability and performance. Design secure, reliable AWS solutions and make clear decisions about architecture … than relying on wholesale redesign. Requirements Significant software engineering experience and a track record of delivering large-scale enterprise web applications. Deep experience with Java, Spring Boot, microservices, ReactJS, SQL, MongoDB, DevOps, CI/CD, test automation, and Infrastructure as Code. Strong AWS experience, including the design and deployment ...

delivering powerful, elegant and intuitive trading technology solutions, and we value technical pragmatism, collaboration, and clear communication. We're looking for a Senior Java/Systems Engineer with significant experience in Platform Exchange Systems to design, deliver, and optimise production-ready, high-performance, low-latency technology using Aeron. … hands-on engineer who enjoys designing and optimising low-latency Java services and protocols across the full delivery lifecycle. Someone with genuine experience building Matching Engines and Platform Exchange Systems. Driven by evidence-based engineering, automated testing, benchmarking, and profiling rather than guesswork. A clear, confident communicator who can work ...

build scalable distributed systems and deliver customer-facing products used by millions of users. You are proficient in backend programming languages such as Java, Kotlin, Python, or Go . You have strong experience designing asynchronous, reliable, and scalable systems within microservice architectures . You are comfortable working in greenfield environments … build scalable distributed systems and deliver customer-facing products used by millions of users. You are proficient in backend programming languages such as Java, Kotlin, Python, or Go . You have strong experience designing asynchronous, reliable, and scalable systems within microservice architectures . You are comfortable working in greenfield environments ...

other target hosting environments. This is a migration architecture role rather than a greenfield cloud service design role. Experience across the following legacy technologies: Java, Oracle, WebLogic, IIS, Windows/Linux, AIX, Solaris, COBOL and GEN. Candidates are not expected to have deep expertise across every technology listed. Experience defining ...

other target hosting environments. This is a migration architecture role rather than a greenfield cloud service design role. Experience across the following legacy technologies: Java, Oracle, WebLogic, IIS, Windows/Linux, AIX, Solaris, COBOL and GEN. Candidates are not expected to have deep expertise across every technology listed. Experience defining ...

Modernization experience with strong AWS background is a must," they are typically looking for candidates who have: Led migration of legacy Java applications to AWS Hands-on experience with Java, Spring Boot, Microservices, and TypeScript Strong AWS architecture and implementation experience Experience withEKS/ECS, Lambda, API Gateway ...

team, designing, developing and maintaining scalable applications and services that support business-critical operations. This is a predominantly backend-focused role, working extensively with Java and Spring Boot, alongside opportunities to contribute across the wider technology stack within a collaborative, Agile environment. Key Responsibilities of the Software Engineer: Design, develop … maintain scalable backend applications and services using Java and Spring Boot Build and maintain RESTful APIs to support business-critical systems and applications Contribute to frontend development using Vue.js and develop applications and services using Node.js Deliver software solutions across the full development lifecycle, from initial design through to deployment ...

scalable architecture and direct collaboration with front-office stakeholders. What you'll be doing Design and build modern applications using React or Vue.js and Java-based back-end services. Develop distributed microservices, APIs and scalable enterprise architectures, with Python and Node.js also valuable. Work with relational and NoSQL databases, including … looking for Technical expertise Extensive full-stack software engineering experience. Strong React or Vue.js skills and a solid understanding of UI/UX. Proven Java development experience, ideally with Python and Node.js. Strong knowledge of microservices, API design, distributed systems and scalable architecture. Experience with SQL/NoSQL databases, cloud ...

deliver new functionality across customer-facing web applications Build scalable front-end applications using React and TypeScript Contribute to backend development using Kotlin, Java and Spring technologies when required Work within cross-functional product squads following agile delivery practices Use AI-powered engineering tools and agent-based workflows to accelerate … working with modern web architectures Experience working in agile development environments Strong understanding of AI-assisted development and agentic engineering workflows Experience with Java or Kotlin development Knowledge of Spring Boot and microservices architectures Experience with relational databases and cloud-based environments AWS, Docker, Kubernetes, Kafka or GraphQL experience would ...

Senior Software Engineer: Sports Betting Up to £120,000 + Bonus + Excellent Benefits London - 5 Days On-Site | Python | Java | AI | Low Latency | Distributed Systems Build software where performance, mathematics and real-time decision-making genuinely matter. We're partnering with a highly technical sports betting business continuing … evolving systems used within a quantitative sports betting environment. You'll work across: Designing and building scalable backend services Developing primarily with Python and Java Building low-latency and high-throughput systems Processing large volumes of real-time data Developing distributed and event-driven architectures Building integrations with external platforms ...

Tech Lead Developer - Generative & Agentic AI Python | Java | FastAPI | AWS | LLMs | Agentic AI | Technical Leadership Salary: £75,000 - £85,000 + Benefits Location: London - Hybrid (3 days per week onsite) Employment: Permanent We're recruiting an experienced, hands-on AI Tech Lead Developer to join a technology consultancy delivering enterprise … ready AI solutions. The role Leading a team of AI Developers delivering enterprise-grade Generative and Agentic AI solutions Designing and developing Python and Java services, APIs and AI components Building LLM integrations, RAG architectures and agent-based workflows Developing prompt orchestration, output validation and AI evaluation capabilities Working with ...

/Terraform), running them on Kubernetes (EKS on AWS), and keeping them healthy in production (Prometheus/Grafana). Much of our estate is Java 21 and Spring Boot, but we care more about how you design, reason about and operate systems than about which language you write them in. … Backend development - Solid commercial experience in a modern backend language, plus relational and NoSQL persistence and messaging such as Kafka or SNS/SQS. Java/Spring Boot experience is preferred, but we welcome strong engineers from other languages who are keen to pick up our stack. · AI-native development ...

client is in the Financial Sector and is looking for a new Java Engineer to join the team. This role is hybrid with 3 days a week in Central London. In this role you will be working in a small team of 10 on a brand new AI focused product. … Client Details Our client is in the Financial Sector and is looking for a new Java Engineer to join the team. This role is hybrid with 3 days a week in Central London. In this role you will be working in a small team of 10 on a brand ...