476 to 500 of 530 Java Jobs in London

Contract Role – Senior FX e-Trading Java Developer – London/Hybrid – 12 months initial – Inside IR35 PAYE Role Overview: Job Title: Senior FX e-Trading Java Developer Location: Hybrid – 4 days onsite per week in London Contract Type: Contract Duration: 12 months initial Rate: £ per day Inside IR35 About … into robust technical designs; write clear specs and implementation plans. What we’re looking for Professional software engineering experience, with deep expertise in: Core Java, multithreading/concurrency, performance tuning. Experience with low-latency design and patterns. Designing and operating distributed systems (microservices, event-driven architectures, messaging/streaming). ...

supported by open feedback loops. We are moving towards a cloud-first architecture with a strong focus on AWS, working with technologies such as Java/Spring, AWS Lambda, Node.js, Kafka, SQL/NoSQL databases, and more. Key Tasks Work within a small, collaborative team using agile methodologies and practices … marketing domain. Skills & Expertise 6+ years of professional software engineering experience Strong foundation in OOP and comfort working with multiple programming languages, ideally incl. Java/Spring Passion for clean, maintainable code with a strong understanding of SOLID principles Hands-on experience designing AWS-based systems, microservices with REST APIs ...

Hands on Java application design, software development and automated testing (Java 11 and higher). Intermediate knowledge of basic infrastructure technologies and components. Familiarity with application containers based on spring, Vert.X or equivalent. Familiarity with Cloud services including DevOps concepts and CI/CD tools. Experience with Event-driven/ ...

Java, Low-Latency, Multi-threading, AI, Transformation, Algo CORE BANKING, TRADING SYSTEMS or HIGH TRANSACTIONAL SYSTEMS EXPERIENCE ESSENTIAL Join a newly formed Service Modernisation & AI team driving AI-first software development in financial services. This is a hands-on role modernising high-impact legacy services while building AI-powered engineering … workflows. What You’ll Do Modernise critical legacy Java services using AI-driven analysis and refactoring Apply migration patterns (e.g. strangler fig) to deliver clean, modern APIs Ship improvements in fast cycles with measurable gains in performance and reliability Build AI-powered tooling, including MCP servers and AI-assisted ...

Principal Java Developer/Consultant (Java Spring Boot AWS) London/WFH to £120k Are you an experienced Java Developer, with technical project leadership and client facing skills? You could be progressing your career at a global technology consultancy. What's in it for you: Salary to £120k Pension, Life ...

Java Software Engineer Join a tier-one global financial institution undergoing a major digital transformation across its capital markets technology estate. You'll play a key role in scaling a mission-critical platform, driving architecture, performance optimisation, automation, and engineering best practice. Strong Java and distributed systems experience required. Exposure ...

Java Quantitative Developer London – Hybrid Java, Low Latency, Algo Trading, Pricing, Hedging, FX/Crypto, DeFi, AWS The company This is an unmissable opportunity for an experienced Java Quantitative Developer to join the crypto trading desk of one of the leading institutional digital asset firms in the market. With … markets. Build pricing logic and hedging frameworks that drive the desk's market making activity. Translate trader and quant ideas into efficient, production-grade Java code. Optimise existing trading systems for speed, reliability and scalability. Integrate new data sources and ensure data integrity for accurate model input. Monitor and troubleshoot ...

Senior Java Engineer - FX eTrading** (Contract) Duration: 12 Months (Possibility for extension) Location: London/Hybrid (4 days per week on site) Rate: A highly competitive Umbrella Day Rate is available for suitable candidates Role Profile As a Senior Java Engineer, you will play a pivotal role in delivering resilient … into robust technical designs. Write clear specifications and implementation plans. Skills & Experience: Professional Experience: Strong background in software engineering with deep expertise in Core Java, multithreading/concurrency, and performance tuning. Low Latency Expertise: Proven experience in low latency design and patterns that enhance trading performance. Distributed Systems: Experience ...

Backend Software Engineer (Java) , Remote, UK About Revolut People deserve more from their money. More visibility, more control, and more freedom. Since 2015, Revolut has been on a mission to deliver just that. Our powerhouse of products including spending, saving, investing, exchanging, travelling, and more help our 75+ million customers ...

London is seeking a Mulesoft Technical Lead to work on integration technologies including the MuleSoft Anypoint Platform. The ideal candidate should be proficient in Java and familiar with Agile methodologies. This role offers a competitive compensation structure and is contract-based. Experience with cloud technologies and other programming languages such ...

Java developers! If you're looking for a contract role where your work actually matters, this is it. We're on the hunt for a Senior Backend Engineer for an urgent, 6-month contract to help build a genuinely safe, privacy-first digital ecosystem for kids and families. This ...

customer engagement across the platform. The ideal candidate will have a strong background in algorithms and machine learning, and experience with programming languages like Java, C++, or Python. #J-18808-Ljbffr ...

recommendations. The ideal candidate will hold a PhD or Master's degree in a relevant field and possess experience in programming languages like Java, C++, and Python. Responsibilities include designing systems for customer interactions, collaborating with engineers for deployment, and providing strategic machine learning insights. This position offers immigration support ...

infrastructure, thereby improving how developers ship software at scale. The ideal candidate has over 5 years of backend engineering experience, with strong skills in Java, Python, and experience in AI/ML systems. The role allows for flexible location within the EMEA region. #J-18808-Ljbffr ...

optimize ad matching in programmatic advertisements. Responsibilities include designing deep learning models and improving their performance. Candidates should have strong programming skills in Java, C++, or Python along with a relevant postgraduate degree. Join Amazon's team to impact multi-billion dollar businesses with innovative solutions and work ...

London. This strategic role combines technical expertise with architectural leadership, guiding teams in transformational projects within financial services. Successful candidates will have strong Java development experience, a background in mission-critical systems, and excellent stakeholder management skills. Competitive compensation and benefits are provided, alongside a commitment to diversity and inclusion. ...

successful candidate will guide a team developing AI-native backend systems, defining technical visions that integrate advanced reasoning and agent-based execution. Experience in Java, Python, or Node.js, alongside a strong background in distributed systems, is essential. Flexible remote working is offered across the EMEA region. #J-18808-Ljbffr ...

test specialist, you will work alongside our business analysts to understand client requirements and define and execute test scenarios. Essential Skills: Performance Testing Cucumber Java JIRA Confluence Desirable Skills: JMeter AWS Tooling UK Location & Post Code: Project expect resources to be in office a minimum of 3 days a week ...

Strong integration and architecture documentation skills Experience in either: Front Office: transport ticketing hardware (Cubic, S&B, INIT preferred) Back Office: payments, transaction processing, Java/.NET/Oracle, acquirer integrations Details Duration: 6 months (likely extension) Location: London (50% onsite, Pier Walk) Interview: 2-stage process (remote + formal ...

partnered with a global financial services consulting firm seeking a highly experienced Engineers with deep Java expertise to join their growing engineering practice in London. Renowned for their entrepreneurial culture and high-impact delivery for Tier 1 financial institutions, this is an exceptional opportunity for a senior engineer ready … engineering teams. What you'll be doing: Crafting high-performance, distributed backend systems that sit at the core of enterprise financial platforms - using modern Java and Spring Boot Taking the lead on service design and API development, ensuring solutions are robust, maintainable, and built to last Owning the full deployment ...

partnered with a global financial services consulting firm seeking a highly experienced Engineers with deep Java expertise to join their growing engineering practice in London. Renowned for their entrepreneurial culture and high-impact delivery for Tier 1 financial institutions, this is an exceptional opportunity for a senior engineer ready … engineering teams. What you'll be doing: Crafting high-performance, distributed backend systems that sit at the core of enterprise financial platforms - using modern Java and Spring Boot Taking the lead on service design and API development, ensuring solutions are robust, maintainable, and built to last Owning the full deployment ...

partnered with a global financial services consulting firm seeking a highly experienced Engineers with deep Java expertise to join their growing engineering practice in London. Renowned for their entrepreneurial culture and high-impact delivery for Tier 1 financial institutions, this is an exceptional opportunity for a senior engineer ready … engineering teams. What you'll be doing: Crafting high-performance, distributed backend systems that sit at the core of enterprise financial platforms - using modern Java and Spring Boot Taking the lead on service design and API development, ensuring solutions are robust, maintainable, and built to last Owning the full deployment ...

engineering teams working on distributed systems or developer platforms at scale You have 5+ years of experience in backend engineering with strong expertise in Java, Python, and/or Node.js You have experience integrating AI/ML systems, LLMs, agent frameworks, or AI‐assisted tooling into real‐world systems ...

with a strong passion for machine learning and big data technologies. Solid foundation in data structures and algorithms, with excellent programming skills in Python, Java, or C++. Deep familiarity with natural language processing (NLP) techniques and hands-on experience in knowledge graph construction, including entity extraction, relation extraction, ontology design ...

with a strong passion for machine learning and big data technologies. Solid foundation in data structures and algorithms, with excellent programming skills in Python, Java, or C++. Deep familiarity with natural language processing (NLP) techniques and hands-on experience in knowledge graph construction, including entity extraction, relation extraction, ontology design ...