1 to 25 of 64 Permanent Java Jobs in the City of London

Please find the Job Description:- Role: Senior Java Developer Location: Farnborough/UK (Hybrid) Hybrid mode of work Exp range:8+ years Mandatory skills: Java Springboot, Java 17/11, AWS, Pipeline, Financial domain, Spark. JD: Java Tech Lead job involves leading and mentoring a Java development team, analyzing … conducting code reviews, troubleshooting complex technical issues, and driving innovation with new technologies. Key Responsibilities: • Team Leadership: Lead, mentor, and guide a team of Java developers in the development lifecycle. • Project Management: Oversee Java development projects from conception to completion, ensuring alignment with project requirements and timelines. • Technical Expertise: Design ...

Role: Senior Java Full-Stack Developer Location: Bournemouth, England, and Scotland 5 days onsite Mode: 1 year contract (renewable) Experience: Minimum 3+ years of relevant experience Job Description: We are seeking a passionate and skilled Software Engineer to join our dynamic team. In this role, you will design, develop … maintain enterprise-grade applications using Java and Spring Boot, working extensively with Oracle and PostgreSQL databases. You will play a key part in our cloud-native journey, leveraging Docker, Kubernetes, and modern monitoring tools to deliver scalable, resilient solution K ey Responsibilities Design, develop, and maintain Back End services ...

Financial Services Lorien's leading banking client is looking for a skilled API Automation Engineer with strong experience of with Rest API testing in Java to join our London-based team. The ideal candidate would have experience of working with Cloud Technologies and Streams-process platforms. This role is based … Umbrella. Working in a Hybrid Model of 2 days a week on site. Key Skills and Experience Rest API automation testing in Java Java library and framework: Lombok, Spring Boot Stub testing experience: yaml, wiremock or Mockito, SOAP API testing Programming languages experience in OOP: Java or C# tools used ...

evolving an established platform while contributing to the longer-term modernisation of the architecture. Non-Negotiables: Strong software engineering experience (C# preferred but Java, or C++ considered) Strong SQL/relational database experience Careful approach to testing and safe refactoring Clear, concise technical and verbal communication Have previously worked ...

Scrum or Kanban. Hands-on AI development using modern tools and IDEs (e.g., Windsurf) and familiarity with integrating AI into products. Strong expertise in Java (preferably Spring) and architectural patterns for scalable, observable, and testable systems. Proficiency in modern engineering practices including CI/CD (e.g., GitLab), automated testing (JUnit ...

adopt modern cloud-native technologies and best practices Promote high engineering standards across code quality, testing, and automation Skills: Strong backend engineering capability (Golang, Java, or .NET) Strong hands-on experience building and operating distributed systems in cloud environments (AWS or GCP) Kubernetes and container orchestration experience Infrastructure as Code ...

live trading environments Ensure best practices in software development, testing, and documentation Required Qualifications Strong programming skills in C#, Python and/or C++ (Java or other languages a plus) Solid understanding of data structures, algorithms, and software engineering principles Experience working with large datasets and time-series data Familiarity ...

Client: Largest American Credit Card Company Location: Burgess Hill 3 days/week Years of Exp: 6-9 years Skills: Go, Java, Git, REST, Jenkins, NoSQL, Postgres/ql £40-£50/hr Inside IR35 Visa sponsorship is not available. We're looking for an enthusiastic, diligent Golang Software Engineer ...

Excellence: Proven experience leading and supporting software engineering teams to achieve business goals. Technical Breadth: Excellent knowledge of RESTful API development in modern languages (Java, Python, or .Net) and experience with Cloud environments (AWS or Azure). AI Awareness: You aren't necessarily a researcher, but you have expectations ...

their goals. The 3 G’s of RE: “Get Shit Done.” “Get Over Shit.” “Give a Shit.” We are seeking an experienced and opinionated Java Developer to join our high-performing engineering team, working on l ow latency , high-throughput systems in the payments processing domain. This hybrid role … offers the opportunity to build scalable, real-time services using modern technologies. If you’re passionate about performance, have strong Core Java and SpringBoot expertise, and thrive in a collaborative yet opinionated engineering culture, we want to hear from you. Key Responsibilities : Design, develop, and optimize low-latency, high-throughput ...

help them scale up their AI platform and make a real impact. They are looking for an engineer with strong commercial use of either Java, Kotlin or Scala and proficiency with Python to help modernise their codebase. Responsibilities: Build and scale backend systems for AI-driven automation products Collaborate with ...

Experience Essential Strong Salesforce (Sales Cloud) experience Proven background as a Technical Lead/Solution Architect/Solution Engineer Experience with: AWS (Glue, AppFlow) Java development API integrations (REST/SOAP) CI/CD pipelines & cloud deployment (AWS/Azure) Experience working across business requirements/user journeys (BA background ...

next tech unicorn, together, in the same room, ask the big players. What you’ll need to succeed: Strong experience building production quality software (Java, TypeScript, React or Python) Curiosity and adaptabilit y: you learn new technologies quickly and apply them effectively Hunger and drive: you’re comfortable working ...

Technical Consultant - Java Software Development Location: London Contract Type: Permanent Salary: circa £85,000 - £120,000 total compensation (salary + discretionary bonus) Are you a solutions and project focused Technical Consultant with a strong back-end coding background in Java or Python? Do you have excellent people skills and enjoy … financial software solutions for global investment banking clients Own component architecture, estimation, and production delivery with full technical and project accountability Work with modern Java technology stacks (Spring Boot, Java 17/21) and cloud infrastructure (AWS, Docker, Kafka) Join a collaborative software consultancy with 20+ years' industry experience ...

Java Architect (with Capital Markets exp.) Project description We are building an end-to-end client lifecycle management solution, where technology drives procedural automation and standardization. Our solution includes industry-leading modules and tools widely adopted by financial institutions. This strategic initiative spans the entire client lifecycle—from onboarding … integration with various in-house products such as Counterparty Manager, ISDA Amend, Outreach360, Request for Amendment, KYC, and Tax Utility. We leverage a mature Java/Spring Boot-based tech stack, supported by AWS infrastructure, along with the latest advancements in the industry to deliver this solution over a multi ...

/CD Collaborate with product, security, and engineering teams What You’ll Bring Strong software/platform engineering experience (Python, Go, or Java) Experience with distributed systems and cloud (GCP preferred) Hands-on Kubernetes and cloud-native tooling Familiarity with LLM frameworks (e.g., LangChain, CrewAI) Experience with vector databases ...

least privilege access enforcement What you need: Practical RSA IGL (or similar IAM) experience SQL/PSQL, Oracle, REST/SOAP web services, JAVA/JSP, HTML/CSS/JS basics Linux/Windows servers, SQL/Oracle databases Excellent attention to detail, communication skills, PowerShell scripting Incident management ...

term business strategy What were looking for in a Solutions Architect Proven background in solution architecture across enterprise environments Strong software engineering foundation in Java and/or .NET Experience designing microservices and API-led architectures Knowledge of cloud platforms such as AWS, Azure or GCP Experience working across multiple ...

Senior Java Engineer (WebFlux) London – Hybrid (1 day per week onsite) Are you a senior, hands-on Engineer who thrives in event-driven, asynchronous environments? Do you enjoy building low-latency, high-throughput distributed systems where correctness, resilience, and performance really matter? This is an opportunity to work … 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 ...

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 ...

Bachelors degree in engineering, computer science or another technical related subject. programming proficiency with at least one major programming or scripting language (e.g. C++, Java, Python) high level of communication skills and ability to work efficiently with colleagues across multiple areas Additional desirable Qualifications for Quantitative analyst Knowledge ...

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 ...

engineering, workflow orchestration, and machine learning operations. Excellent communication skills with the ability to influence cross-functional teams and stakeholders. Experience with Python, SQL, Java, HQL, Hive, Pyspark, or similar programming languages preferred Well-versed in design thinking principles Great problem-solving and analytical skills ...

central to the team’s core systems Python is widely used across quant and data groups Open to candidates from other OO backgrounds (C++, Java, Go) with strong fundamentals Exposure to high‐performance, low‐latency, or business‐critical systems is valuable Financial markets experience is not essential, but interest ...

involved in extracurricular pursuits such as start-ups. They should possess deep expertise in Python or demonstrate proficiency in other languages like C#, C++, Java, React, or Ruby. You can expect: 1 year of experience in a leading institution. Proficiency in C# Market-leading compensation with a generous base salary ...