26 to 50 of 77 Java Jobs in the City of London

goals Provide regular reporting to the Head of Technology on application performance, risk status, and strategic progress. Skills Required Proficient in SQL, C#, Python, Java, HTML/CSS, and related development frameworks. Understanding of API integration, data modelling, and application performance tuning. Strong project management skills are essential for implementing ...

small team of engineers, supporting performance management and career growth. Essential Requirements: Experience leading teams of engineers in implementing data-intensive systems. Proficient in Java, Scala, or Python for software development. Experience with ETL/data-processing platforms (e.g., Informatica, Azure Databricks) and advanced SQL. Strong understanding of distributed data ...

Role: Our client is seeking a Senior Hands-on Java Developer to join a Tier-1 Global Financial Institution's Fixed Income team. This isn't a "business as usual" role-you will be a key architect in re-engineering a mission-critical trading platform, migrating legacy systems into … Focus: Electronic Trading, Messaging Channels, and Exchange Interfacing. Tech Culture: Modern engineering with AI-integrated workflows (GitLab Duo/CoPilot). Your Technical Arsenal Java Expert: Mastery of core Java, Spring Boot, and Spring Integration. Domain Specialist: Deep experience in Fixed Income (Treasuries, Corporate Bonds, Mortgages) and trading protocols like ...

Senior Java Engineer (Core Java) £100,000 - £130,000 Central London - Hybrid A high-growth, privately backed Enterprise SaaS company is seeking a Senior Core Java Engineer to join its London-based engineering team. The organisation builds large-scale, mission-critical platforms used by some of the most sophisticated technology … throughput distributed systems, solving complex engineering problems at scale within a collaborative, high-performing team. Key Responsibilities Design, build and maintain high-performance distributed Java services Contribute across design, development, testing, deployment and support Collaborate closely with other engineers to deliver customer-centric solutions Mentor and be mentored within ...

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 ...

accountable and sustainable cloud provider🌳 What they're looking for in a Lead Software Engineer: Tech agnostic but preferable experience working with Golang, Rust, Java and/or C/C++. In-depth knowledge of distributed systems, building solutions at scale where performance, reliability and availability are key considerations. Confident ...

Full Stack Engineer/Developer (Java AWS React) London/WFH to £80k Are you a Java technologist looking for an opportunity to be part of something big from the start? You could be progressing your career in an impactful role at a newly established Fintech start … About you: You have a good understanding of the Wealth management/Investment banking domain, comfortable having business logic type discussions You have strong Java, AWS and Kubernetes skills and also have a good appreciation of user interface/front end development using React or Tailwind CSS You have ...

years’ practical experience on a web-based application Proficient with English (both verbal and written) Proficient with any back-end programming languages (i.e. C#, Java, Python, C++, etc.) Outstanding knowledge of software and application design and architecture Highly analytical mindset, with an ability to see both big picture ...

essential for this role) Python within quant or data environments The client will also consider exceptional engineers from other OOP backgrounds such as C++ , Java , or Go Familiarity with UI technologies such as WinForms, WPF, Blazor Hybrid, and Blazor Web Leadership & Approach Experience working in front‐office or trading‐technology ...

/4HANA architecture, extensibility models, and clean-core principles. Expertise in API design, integration technologies, and cloud development (CAP, RAP, Node.js, Java). Knowledge of identity and access management (IAS/IPS, OAuth, XSUAA) and security best practices. Experience with CI/CD, Git, deployment automation, and cloud operations. Proven ...

experience. 5+ years of relevant professional experience. Proven ownership of delivering complex mobile solutions across multiple services or domains. Advanced proficiency in Kotlin/Java, Android SDK, and Android app architecture patterns. Experience designing scalable system and API interfaces, performing data modelling, and integrating external services. Preferred Qualifications: Expertise ...

pyramid and tools such as Vitest, Jest, React Native Testing Library, Maestro, Detox Nice to have: Experience with iOS (Objective-C, Swift) or Android (Java, Kotlin) native development. Experience with mobile release processes for the App Store and Play Store. Experience with performance optimisation and profiling in React Native. Familiarity ...

bring: Strong experience with Domain-Driven Design (DDD) and modern system decomposition Proven delivery of microservice-based architectures Deep hands-on experience with Java/Spring and React Experience improving engineering effectiveness through testing strategy and automation Exposure to cloud-native environments (AWS preferred) Confidence mentoring engineers and leading technical … discussions Comfort working with stakeholders in regulated environments Eligibility for UK Security Clearance (British citizenship required) Core technologies: Java/Spring React/JavaScript SQL/NoSQL databases Docker/Kubernetes AWS Playwright GitLab, Maven Nice to have: GovUK UI Framework Azure or GCP .NET Benefits Flexible working with core ...

Trading London Atrium EMEA is looking for several Senior Full-Stack Engineer with good experience of FX e-Trading (React/TypeScript + Java) to help architect and build a new FX e-trading platform from the ground up, working across the stack to deliver high-performance, resilient, and secure ...

Java Developer Join a high-impact Core Technology team at a leading hedge fund. About the Company This firm is a major player in the space, a multi-strategy hedge fund with a strong focus on systematic and quantitative trading. Founded by industry veterans, it combines deep financial expertise with … advanced software engineering to manage institutional capital globally. What You’ll Do Design and build high impact internal systems using Java Own projects end-to-end: from architecture to deployment Collaborate with analysts to solve real-world business problems Support and mentor junior team members on coding and data skills ...

well as very competitive salaries, our client offers an excellent working environment. Skills required: Proficient in several of the following: Python, C#, C++, Java Mathematical Modelling Mathematical skills, particularly a keen understanding of probabilities and statistics Analytic mindset Strong communication skills Accuracy and attention to detail Experience in data science ...

where the code you ship shows up in production fast and at scale. 💡 They’re looking for engineers who: Have strong OOP fundamentals ( Python, Java, Go, or Rust ) (core stack is C# , and they’ll support you getting up to speed) Enjoy breaking down complex systems and rebuilding them into ...

engineering leadership within trading, commodities, energy or capital markets. Proven experience running front-office application teams supporting live trading desks. Strong technical background in Java, React, APIs, real-time data and AWS. Experience delivering high-performance, low-latency trading platforms. Confident working directly with traders, quants and senior commercial stakeholders. ...

RESTful APIs and Webservices Confident communicator with the ability to explain technology to non-technical audiences Background in Software Engineering using C#, C++, Java would be a hugebonus ...

record leading multi-geography, multi-vendor technical collaborations. Deep understanding of cloud SaaS architectures and insurance/health-tech domains. Hands-on technical credibility (Java, Kafka, AWS) combined with executive presence and negotiation skills. Demonstrable expertise in tools/technologies for the design, development, build, testing and deployment of various ...

About the Role You will act as the security lead embedded within an application development delivery team, working across a complex hybrid environment including Java/React, J2EE microservices, RPG/JSP on z/OS, and API-driven architectures. Your mission: enable fast, secure delivery by uplifting application security ...

Machine Learning, including agent-based AI, RAG (Retrieval Augmented Generation), multi-agent systems and conversational agents. Strong programming skills in Python, Java or .NET. Experience with GenAI and LLMs (e.g. ChatGPT, Claude, Llama, OpenAI), including prompt engineering, fine tuning and advanced search. Familiarity with AI agent frameworks (e.g. Autogen ...

Lead Software Engineer – Java Microservices | London (1 day per week on-site) | £74,000 – £92,000 + Package We’re partnering with a leading UK bank to recruit a Lead Software Engineer with strong Java and microservices expertise. This is a hands-on role building high-performance, scalable software … building robust microservices that support high-traffic user experiences, serving thousands or millions of concurrent users. What We’re Looking For Proven experience developing Java microservices for high-traffic applications (retail, e-commerce, media, or streaming platforms). Hands-on experience with the full software lifecycle in agile environments ...

team within the Pricing and Risk area , where youll work on our low latency, high-frequency trading platform . You will use cutting-edge Java programming techniques so experience in this area is essential . As a Senior Developer, youll not only code but also take on key design responsibilities ...

months contract/Hyrbid/2 days in office London/750 per day Inside Ir 35 Senior Java Developer (VP) Role Overview We are seeking a Senior Java Developer with deep Electronic Trading expertise to join our E-Fixed Income (eFI) Development Team in London. The team builds … TransFICC connectivity within the eFI ecosystem Identify and eliminate performance bottlenecks through profiling, tuning, and architectural improvements Develop lock-free, allocation-free, performance-critical Java components Deliver high-quality software using Test-Driven Development and Domain-Driven Design Partner with Traders, Financial Engineers, and Business Analysts to translate trading requirements ...