201 to 225 of 309 Java Jobs in London

Java Software Engineer with around 3-6 years professional, post-graduate experience sought by one of the original Quantitative Hedge Funds, with a 20+ year track-record. The firm are renowned for a healthy, supportive, and collegiate working environment and culture, with no siloes, boasting an industry-leading staff tenure. … Corporate Functions. The team deal directly with business users right across the firm, taking ownership of analysis, design, architecture, and implementation, working primarily with Java, but also with Python, SQL and to a lesser extent, MATLAB. They currently have an opening for a mid-level hire in the team, with ...

deeply about the end user experience, possess a strong desire to learn, and feel comfortable with at least one statically compiled language (C#, C++, Java, Swift, Rust etc). Technical Diligence - You value version control and code review, you are architecturally curious, you maintain documentation. You advocate for your ideas ...

performance, scalability and reliability (e.g. DORA metrics). Strong Python background and comfort working across modern engineering ecosystems (our systems are written in TypeScript, Java, Golang, Rust, Python and others). Confident operating at senior leadership level and influencing across functions. Desirable: Google Cloud Platform including BigQuery & AI Platform. Bayesian ...

Senior Software Engineer (Java/Python/Cloud & AI) We're looking for a Senior Software Engineer to join a high-performing technology team building scalable, cloud-native applications and AI-powered solutions within a fast-paced enterprise environment. You'll work as part of an agile engineering team responsible … helping shape the future direction of modern AI-enabled systems. What you'll be doing Designing, developing, and maintaining secure, scalable backend applications using Java and Python. Building and optimising cloud-native services and distributed systems within AWS environments. Developing intelligent search and AI-driven workflows, including semantic search ...

This is not a bank. Not a consultancy. Not sell‐side tech. We’re hiring a Java Engineer to join a small, elite engineering team inside a buyside FX trading firm building proprietary systems that directly trade capital. Your code won’t feed dashboards or client portals — it will … fluff. This is backend + infrastructure engineering in a production trading environment. Who This Is For We’re looking for a junior–mid level Java engineer who can: Pick up tickets independently Write clean, production‐ready code Deliver without constant oversight This is not a senior or architectural role ...

Contract Senior Software Engineer (Java or Python) Inside IR35 Contract length: 6 months (with potential to extend) Location: London Working Environment: On-site You will be joining a private equity firm as a senior software engineer, to work across the following responsibilities: Develop and support P&L, accounting, and returns … production-grade code Provide production support, working with Platform and SRE teams as needed Key Requirements: Technical: 8+ years commercial experience in Python or Java across the full development lifecycle 5+ years in financial services (buy-side strongly preferred) Solid relational database skills; MS SQL Server a strong plus Snowflake ...

Contract Senior Software Engineer (Java or Python) | Inside IR35 Contract length: 6 months (with potential to extend) Location: London Working Environment: On-site You will be joining a private equity firm as a senior software engineer, to work across the following responsibilities: Develop and support P&L, accounting, and returns … production-grade code Provide production support, working with Platform and SRE teams as needed Key Requirements: Technical: 8+ years commercial experience in Python or Java across the full development lifecycle 5+ years in financial services (buy-side strongly preferred) Solid relational database skills; MS SQL Server a strong plus Snowflake ...

performance degradation, and uncover hidden configuration flaws. This involves deep-dive performance analysis using tools like PurePath and Smartscape to ensure optimal operation of Java backends and Angular frontends. Cloud and Microservices Integration The candidate will be responsible for integrating Dynatrace monitoring within our AWS cloud infrastructure and microservices ecosystem. … Application Performance Monitoring (APM) concepts is essential. The role requires profound knowledge of AWS services, microservices architectures, and full-stack development technologies, specifically Java and Angular. Analytical and Problem-Solving Skills Exceptional analytical skills are required to interpret complex performance metrics, including CPU, memory, latency, and throughput. The candidate must ...

pipelines and infrastructure as code Writing clean, testable, maintainable code Participating in code reviews, pairing, and team delivery Tech Stack & Environment Backend: Scala, Java (Python desirable) Frontend: HTML, CSS, JavaScript Frameworks: Play, Spark Data: Postgres, MongoDB, Hudi Cloud: AWS (S3, ECS, Aurora, Lambda) DevOps: Jenkins, Airflow, Terraform Monitoring: Kibana, Grafana … build it, you run it' What We're Looking For Strong experience as a Scala/Software Engineer Solid backend development skills (Scala/Java) Experience with SQL and NoSQL databases Familiarity with AWS and modern DevOps practices Experience working in Agile, multidisciplinary teams Strong analytical and problem-solving skills ...

part of a team that values collaboration, innovation, and the growth of every individual. Tailored Growth: Access exceptional training, professional certifications (AWS, Azure, Java, etc.), and a clear path for development. Flexibility: Our hybrid working model gives you the balance you need. The Role As a Principal Technical Consultant … senior level, establishing organisational networks and engaging other senior leaders. Technical Depth: Professional knowledge of object-oriented design patterns and modern languages such as Java, TypeScript/JS, Python, C#, or Scala. Modern Architecture: Solid understanding of cloud services (AWS/Azure/GCP), microservices, observability, Infrastructure as Code ...

solutions Contribute to CI/CD, testing, monitoring, and operational improvements across platforms Support and mentor junior engineers within the team Key Requirements Strong Java engineering experience within distributed or microservices-based environments Experience building production systems within financial services or similarly regulated industries Strong knowledge of Spring Boot ...

Manages time effectively across multiple projects with competing business demands and priorities. What it takes: Experience in Test Driven Development and strong knowledge of Java (17 or higher), Spring Boot, Spring MVC, RESTFul API implementation, GraphQL, and open-source frameworks Experience in software development using cloud technologies (AWS preferred) Knowledge ...

will collaborate in a dynamic global team with fellow technologists, business analysts, project managers and business stakeholders across multiple locations. Key Attributes An excellent Java developer with good software design principles and the ability to write robust code and accompanying test suites Ability to write efficient, clear code … developer is a plus Technical skills: 5+ years hands on development with investment banking. E-trading- FX/FI experience is must Core Java (essential), Concurrency, Spring RX Java is a plus Experience in micro-services and container technologies (preferably Docker) is a plus Familiarity with CI/ ...

Senior Java Developer (Contract) - Investment Bank - Central London Contract Length: 6 months Location: Central London (1 day per week onsite) Interview Process: 2 stages Overview We're working with a leading investment bank in Central London seeking a Senior Java Developer to join a front-office aligned team. This role … Strong experience with FX Options Background in Regulatory Compliance Front office exposure preferred (mid/back office acceptable if strong domain alignment) Technical Skills: Java (10+ years core development) Experience with low-latency/high-performance systems Kubernetes/OpenShift Cassandra and Oracle Hazelcast Nice to Have: Frontend experience with ...

role will involve designing cloud-native, high-availability services and using AI-assisted engineering tools. Candidates should have over 8 years of experience in Java and familiarity with event-driven systems. This position offers the opportunity to make significant improvements in the Equities trading business and shape the future technology ...

computer science, math, physics, engineering, or other quantitative fields You have relevant full-time experience You demonstrate strong programming skills in C++/Java or other object-oriented languages You demonstrate good knowledge of statistics and machine learning You have attention to detail, adaptable, driven and collaborative You demonstrate interest ...

automations, including advanced concepts Demonstrated track record of delivering 8+ automation projects per year Background in software development or system configuration (e.g. C#, C++, Java, or similar) Experience integrating Blue Prism with RESTful APIs and web services Strong understanding of Blue Prism architecture and infrastructure Excellent logical thinking and ability ...

product innovation are deeply embedded. You will bring the standards, pace, and technical judgement shaped in those environments, along with deep technical credibility across Java and .NET ecosystems, and the ability to guide architectural decisions without needing to be hands-on in every detail. This is also a visible leadership ...

Full Stack Developer (React/Java)Location: Central LondonContract Length: 12 months IT product team is looking to hire a lead developer with over 10 years experience delivering enterprise level front office e-trading applications. A proven track record delivering low latency, performance, highly intuitive software for front office trading … sales people* Mix of risk platforms as well as sales platforms etc* Languages - JavaScript/typescript * React essential + redux would be desirable* Backend Java ...

Senior Full Stack Engineer (Java/Python) Contract Length - 6 months Location - London (2 days onsite) We are hiring a Senior Full Stack Engineer for a high-priority, ASAP-start contract role with a leading UK tech platform. This is a hands-on senior engineering position within an established team … contributor working across backend and frontend systems, helping shape technical direction and confidently engaging with stakeholders to influence engineering decisions. The core stack is Java-first, with increasing importance on Python-based services (including orchestration, agents, and modern AI/LLM integrations), alongside a strong React frontend. This ...

Senior Software Developer to design, build, and maintain microservices-based applications and data engineering pipelines. This role requires strong hands-on development experience across Java services, backend systems, and data processing platforms, with a focus on building scalable, reliable, and maintainable solutions. The role involves close collaboration with data engineers … teams to deliver high-quality services and data products across a complex enterprise environment. Technical Skills & Experience Core Skills Strong hands-on experience developing Java-based applications in a microservices architecture. Solid experience building and maintaining backend services and APIs. Experience contributing to data engineering pipelines, including ETL/ ...

Senior Software Developer to design, build, and maintain microservices-based applications and data engineering pipelines. This role requires strong hands-on development experience across Java services, backend systems, and data processing platforms, with a focus on building scalable, reliable, and maintainable solutions. The role involves close collaboration with data engineers … teams to deliver high-quality services and data products across a complex enterprise environment. Technical Skills & Experience Core Skills Strong hands-on experience developing Java-based applications in a microservices architecture. Solid experience building and maintaining backend services and APIs. Experience contributing to data engineering pipelines, including ETL/ ...

Looking to join a company when you can make a real impact? Do you have 3+ years commercial experience developing software with Java & JavaScript? 🚀 Full Stack Engineer – SaaS Solutions 🚀 💰 Salary – up to £55k + bonus 📍 Location – hybrid working 2 days a week in modern London office I am excited … Defense, HM Treasury, and the Departments of Work & Pensions and International Trade. They are looking for a motivated Full Stack Engineer with experience with: Java Spring Boot Microservices JavaScript Frontend frameworks: they use Vue.js but are also open to React and Angular Containerisation using Docker, Kubernetes Developing cloud-native applications ...

currently working with a London-based financial services client who are actively seeking 3 Senior Java developers to assist in the development and maintenance of a business-critical system in the Equity Derivatives space. What you'll need to succeed : 10+ years' server side Java development experience. Strong commercial software ...

compensating time-off per policy. Minimum qualifications: Bachelor’s degree (or equivalent experience) and 3+ years in software engineering or production support. Proficient in Java or a similar language; strong debugging skills and ability to write scripts for diagnostics and updates. Familiarity with Linux and bash. Clear, empathetic communicator capable … desks at a large investment bank. SQL proficiency for rapid data validation and incident triage. Experience with object-oriented programming and microservices-based Java/SOA environments. Monitoring/alerting setup and tuning (e.g., Prometheus, Grafana, Kibana, PagerDuty). Knowledge of Fixed Income products (Rates, Credit, FX, Commodities) and related ...