201 to 225 of 335 Java Jobs in the City of London

Contract Java SDET – Hybrid (Swindon/London) | Inside IR35 | £400 - £425 per day A leading technology company is seeking a skilled Java SDET to join their dynamic team on a contract basis. You’ll play a key role in shaping, planning, and delivering high-quality testing across functional and non-functional areas, ensuring releases exceed customer expectations. What You’ll … systems with microservices or monolithic architectures. Strong knowledge of TDD/BDD, CI/CD, DevOps principles, and data curation. ISTQB Foundation certified (minimum). Experience or familiarity with Java, automation frameworks (JUnit, Selenium, Cucumber), SQL, Linux/Unix, Jenkins, Jira/Confluence, APIs (REST/SOAP), AWS, XML/JSON. We’re looking for people who can start as More ❯

Senior Java Developer This is a hybrid role requiring 1/2 days per week in their London office. La Fosse are partnering with a market leading InsurTech provider who are in the market for a skilled Senior Java Developer to join the core software engineering team. This role provides a unique opportunity to lead technical initiatives, mentor team members … The work you do will span the full software development lifecycle, from idea to production, and you’ll be empowered to take ownership of complex engineering challenges. Key Requirements: Java Spring Boot AWS Excellent communication. Bachelors or Masters degree. Experience working at a start-up/scale-up. Compensation : This role is offering an incredibly competitive salary + extended benefits More ❯

in Labware LIMS implementation, enhancements and support work. Knowledge of other LIMS applications like LabVantage LIMS, Sample manager, StarLIMS... Knowledge of Oracle, SQL Experience in programming language like Core Java, Java Script Preferred At least 10 years of experience in Pharma, R&D, Healthcare domain with implementation experience of Labware LIMS At least 10 years of experience in creating requirement More ❯

Requirement: • Experience in customizing and delivering Energy Management Systems • Should have worked on Power Systems applications for Distribution (VVC (Volt VAR Control, Automatic Feeder Rate etc) • Experience with C++, Java or other related language. • Experience with LINUX and Windows Operating Systems • Design, implement, and optimize ADMS solutions to meet business needs and improve operational efficiency. More ❯

role where you will work directly alongside the founding team to help shape the core technology and company culture. About you: 3+ years of Software Development experience in Python, Java, C#, C++ Experience working on an end-to-end development cycle Proven ability to build something from the ground up/experience in shipping features very quickly Understanding of complex More ❯

Aura, VisualForce & REST/SOAP APIs. Solid grasp of SOQL, SOSL & integration patterns. Salesforce Certified (PD1, Admin, App Builder). Sales/Service Cloud or Architect certs, SQL/Java knowledge, Agile background. Why Join Competitive package & growth opportunities Chance to shape architecture direction & mentor a talented team If you're a hands-on Architect passionate about driving Salesforce innovation More ❯

blockchain and digital asset technology What We’re Looking For: ✅ 5+ years of backend engineering experience in trading, HFT, or crypto systems ✅ Deep expertise in C++, Rust, Go, or Java or similar ✅ Strong understanding of multithreading, concurrency, and distributed architectures ✅ Experience with market data, order execution, or exchange connectivity ✅ Interest or experience in blockchain and decentralized technologies If you have More ❯

leading and scaling cross-functional engineering teams. Experience in a fast-paced SaaS or tech environment, focusing on building and scaling back-end systems. Proficiency in full-stack development (Java/Python/NodeJS/Typescript), including cloud technologies (AWS ideally). They want someone who is always ready to code when needed. Familiarity with AI and Machine Learning, and More ❯

Experience, business and technical skills. - Bachelor Degree in Information Technology, Computer science or equivalent.. -10+ years of experience in a similar role. Hands-on experience of coding using Java, PHP, JavaScript/HTML/CSS, Node.js -Strong understanding of ERP, CRM, Other business platforms, with the ability to build the formula fields, workflows, process of intermediate complexity. -Hands-on More ❯

on hands-on development in React Native, where you will refactor and merge codebases from acquisitions, transitioning iOS components written in Objective-C or Swift and Android elements in Java or Kotlin into a cohesive cross-platform structure. This involves optimising for faster startup times, implementing native bridges for features requiring direct hardware access, such as geolocation services using Core More ❯

influencing skills Proactive attitude towards learning and adapting to new technologies and industry best practices Ability to work autonomously as well as collaboratively within a team setting Proficiency in Java, .NET and JavaScript Experience working with AWS and Infrastructure as Code Experience in supporting a trading or investment platform Information Technology degree or equivalent experience CMC Markets is an equal More ❯

experts Enhance and maintain a mission-critical global codebase 🔹 What they're looking for 5+ years' software engineering experience (3+ in financial markets/algos) Strong coding skills in Java, Kotlin, C#, or C++ (Python a plus) Hands-on experience with real-time data processing & distributed systems Strong understanding of software engineering and system architecture A proactive problem-solver with … a mission-driven company protecting millions of investors 👉 Ready to help build safer, fairer financial and crypto markets? Apply now. Desired Skills and Experience Proficiency in programming and building Java applications, Core Java, Hash Maps, Algorithms McGregor Boyall is an equal opportunity employer and do not discriminate on any grounds. More ❯

Java Developer – Prop trading/Crypto firm – London *Please note this role cannot sponsor. Please do not apply if you are seeking sponsorship* Option to work from home up to 4 days a week or fully remote. The role is junior level for someone with 1-3 years commercial experience. Job Summary A couple of Java Developers are required for … team where you will be predominantly integrating new crypto exchange APIs. The role would suit candidates with minimum 1 years experience in a startup/SME commercial environment. As Java Developer you will need: 1-3 years experience in Java development in a startup/SME commercial environment. 1st class STEM subject degree from a top university or a … with large volumes of data. An advocate of engineering best practice, you are focused on quality, deployment and in-life support as well as the core engineering. Benefits: Greenfield Java projects, both challenging and rewarding Join an exciting company with many opportunities to progress your Java programming career. Send your CV for immediately review and further details. More ❯

or Wealth Management. Solid experience in building and deploying frontend applications in React or React Native with hands-on knowledge of secure API design and authentication services. Experience in Java and Spring Boot, or iOS (Swift) or Android (Kotlin) along with exposure to Figma and Vercel is a big plus. Capable of writing clean, maintainable and well-tested code. Comfortable … help engineers thrive. Energised by fast paced, regulated environments where we ship at speed, embrace change, and never stop evolving. Your Technical Toolkit React/React Native/TypeScript Java (21) and Spring Boot/JavaScript/iOS (Swift) or Android (Kotlin) RDBMS (Oracle/Sybase)/NoSQL databases (Document DB) AWS and cloud-native microservices containerised architecture (e.g. K8s More ❯

Java Developer - £100,000 - £140,000 – London/Hybrid Java 21 | Microservices | Spring boot | AWS | Startup | Scaleup | Fintech | Banking | Amazon Web Services | PostgreSQL | Are you a Java Developer who wants to have a voice within the team? Maybe you want to join a fast growing company with lots of progression. If so I have a role for you. Opus have … partnered with a VC Backed Fintech start-up who are looking to grow their London office. They are growing quickly so are looking for Java Developers of all levels from Mid – Tech Lead to join the team. They are currently about 100 people strong and looking to double this within the next 12 months. As a Developer you will be … building and maintaining high performing back end systems. The sort of projects you will be involved in is building API’s , developing microservices and upgrading existing systems. Experience needed – Java 21 TDD AWS They’re also looking for people who have worked within a fast paced Startup/scaleup company. What is in it for you? Hybrid working More ❯

Java Developer – Contract – Remote – £500/pd Outside IR35 – 6 months (likely 12 months) I’m working with a consultancy who are looking to hire a Java Developer (SC Cleared) on a contract basis for an initial 6-month assignment, expected to extend to 12 months. The role is fully remote, supporting a major central government project. Skills required: Strong … Java and Spring Boot development experience AWS cloud platform knowledge Proven delivery within secure or government environments Active SC Clearance (essential) This role has a straightforward interview process with immediate start dates available. Java Developer – Contract – Remote – £500/pd Outside IR35 – 6 months (likely 12 months More ❯

market access, connectivity, and data pipelines across global venues. Requirements Proven experience in systematic or electronic trading environments. Strong technical proficiency in high-performance systems (e.g., C Rust/Java) and Python. Deep understanding of market microstructure and electronic execution. Capable of operating with autonomy in a focused, discreet, and small-team setting. This role offers direct influence on the More ❯

to have a track record in the following: Experience as a technical BA on another real-time trading platform build within Fixed Income. A grasp of object-orientated programming (Java is preferred but experience with others are fine too). Experience working on platforms with microservice architectures and frameworks A thorough understanding of how to sit with front office users More ❯

post-placement follow-up Build and maintain strong client relationships, understanding their hiring needs and providing market insights Source and screen candidates for technical roles (SAP, ERP, CRM, DevOps, Java, Cloud, Digital, Blockchain, etc.) Negotiate offers and manage the end-to-end placement process Meet and exceed agreed KPIs and revenue targets Requirements Minimum 12 months 360 recruitment experience (tech More ❯

Solid grasp of mobile lifecycles, performance tuning, and deployments A passion for creating slick user experiences that delight customers Dabbled in Swift/Objective-C (iOS) or Kotlin/Java (Android) Thrived in product-driven, fast-paced environments What’s on offer: 🌍 100% remote flexibility — work from anywhere 💸 Up to £105k salary 🚤 The chance to work on luxury tech with More ❯

strategy. Key Requirements: Experienced engineering leader with 6+ years leading multiple teams in product-driven environments. Strong technical background in cloud and distributed systems (experience with JVM languages like Java, Scala or Kotlin a bonus). Proven experience integrating AI/ML into live systems with measurable business outcomes. Excellent architectural judgement and a pragmatic approach to scaling systems and More ❯

Senior Java Engineer – Product Engineering | B2B SaaS | Insurtech Up to £120,000 per annum plus bonus and excellent pension London – 2 days a week Java | Spring Boot | AWS | Kubernetes | Event-Driven Architecture Senior Java Engineer – We have been exclusively engaged by a leading B2B SaaS technology business to find a Senior Java Engineer with a “product engineering” mindset to join … but operating with the freedom of a scale-up, the company offers the best of both worlds: long-term security and the agility to innovate. The Role The Senior Java Engineer will play a central role in designing, building, and scaling products that deliver tangible business value. Working closely with Product and the business, you will be leading technical initiatives … code. The role requires someone who enjoys solving complex challenges, influencing architectural decisions and building scalable, resilient systems. Key Responsibilities Designing and developing production-ready features and services in Java (Spring Boot) and cloud-native environments. Contributing to system design and architecture, ensuring simple and pragmatic solutions to complex problems. Working collaboratively with Product Managers and teammates to balance the More ❯

Senior Software Developer (Java/Spring) | London (Hybrid) | £50K 💰 📍 Location: London (Hybrid) 🕒 Experience: 2+ years 💼 Type: Full-time | Permanent 🚀 The company are developing software solutions that address a wide range of challenges faced by the public sector. Their customers include government departments, agencies, and other public sector organisations, helping them streamline processes and achieve their goals effectively. They are looking … Senior Software Engineer who looking is eager to learn, and are ready to contribute to our ongoing growth and success. 💻 What You’ll Do: 🔧 Develop and maintain applications using Java & Spring Boot ✅ Write and maintain unit, integration, and end-to-end tests 🔍 Participate in code reviews and uphold coding standards 🎨 Help design scalable, secure features and services 🛠️ Troubleshoot and debug … complex systems 📦 Use CI/CD tools 🧠 What You Bring: 🧪 2+ years’ commercial experience in Java with Spring 🧰 Solid grasp of modern Java practices 🔄 Familiarity with Agile methodologies & short delivery cycles ⚙️ Hands-on with CI tools and Git-based workflows 💼 What We Offer: 💰 Salary: Up to £50k DOE 🏠 Flexible Hybrid Working - 2 days onsite per week 🎉 Profit share scheme to More ❯

Senior Software Engineer (Java) – Portfolio Optimization | Fintech | London/Hybrid About My Client My client is a high-growth fintech company transforming the way capital markets operate. Their mission is to make global financial systems safer , more efficient , and more open , using advanced technology and deep domain expertise. They partner with leading banks and institutional investors to develop intelligent solutions … Interface with various R&D groups, as well as support groups Who You Are B.Sc. degree in Computer Science, SW Engineering or equivalent (M.Sc. is an advantage) Experienced in Java server-side development, including cloud services (preferably AWS) Experienced with C# and .NET (ability to understand code and general knowledge of the framework) Experience in building complex, large-scale software … solutions from scratch to live production Experience with Java, Spring Boot, Spring Data, JPA, Swagger, Maven, Kafka, PostgreSQL, Jenkins, GIT, RESTful Services, Docker Strong analytical skills Self-starter, fast learner, and great interpersonal skills Excellent English communication skills – spoken and written Financial affinity is an advantage A “Can-Do” mentality and mindset Can learn and work in a fast-paced More ❯

Senior Java Developer – Middle Office Platform (Credit & Rates Trading) Location: London Salary: £120K-£140K + up to 25% Bonus + benefits About the Company This global financial technology firm is renowned for combining cutting-edge engineering with a market-leading trading platform that powers electronic trading across Credit and Rates. Their flagship product is used daily by thousands of brokers … paced, product-focused culture where engineers have direct impact on scaling systems that sit at the heart of global capital markets. The Role We are seeking a Senior Backend Java Engineer to play a key role in scaling the Middle Office platform of a world-leading electronic trading system. You’ll work on mission-critical backend services, collaborating closely with … electronic markets. Global impact engineering: Collaborate with international teams, delivering systems used daily across the US, Europe, and Asia. What They’re Looking For 8+ years of professional Core Java development experience Strong knowledge of data structures and algorithms Hands-on experience with SQL and at least one scripting language (Python, Perl, Shell etc.) Solid understanding of network programming fundamentals More ❯