151 to 175 of 279 Java Jobs in London

weeks. Requirements: Strong experience with React and React Native Hands-on experience with native iOS (Swift/Objective-C) and Android (Kotlin/Java) development (or the desire to pick this up) Proven ability to build, deploy, and maintain mobile apps on the App Store and Google Play Solid understanding ...

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 ...

/financial services. Strong Payments and Ledger domain experience within UK Finance. Deep expertise in Streaming Data Technologies, including: Confluent Kafka Apache Flink Java ODS/MongoDB Proven experience with high-volume, low-latency payment systems. Excellent senior stakeholder management and communication skills. Experience working in a contractor/consulting ...

services (or vice versa). You will architect 'Tier 0' services that filter and protect content across Who You Are * Expertise: Deep knowledge of Java and Python . The Stack: Experience with Ray , Apache Beam/Scio , dbt , and BigQuery . Mindset: Comfortable leading in ambiguous problem spaces and delivering ...

PostgreSQL, MYSQL, or similar RDBMS Display & Visualization SLD creation, HMI development, real-time dashboards, operator displays, and reports Programming/Scripting C, C++, PERL, Java or equivalent for application interfacing and scripting Data Handling Real-time data acquisition, Historian integration, data replication, and logging Performance Tuning & Monitoring Query optimization, indexing ...

high-stakes environment What we’re looking for 2–5 years’ experience as a software engineer Strong fundamentals in algorithms & data structures Proficiency in Java, C++, Go, or similar (Go experience not required) Experience with distributed systems Interest in data analysis/statistics (regressions, data validation, basic ML) Relational database ...

geometry, BIM, parametric modelling, or animation. High proficiency in Rhino, Grasshopper, Revit, Dynamo, Microstation, CATIA/Digital Project, Generative Components. Programming skills: Python, C#, Java, Javascript, Processing, or VBA. Deep understanding of 3D workflows, geometry, and digital fabrication in the built environment. Strong communication, problem-solving, and team collaboration skills. ...

limited to Computer Science, Computer Engineering, and Electrical Engineering. - Understanding of data structures and algorithms. - Proficiency in one or more programming languages (e.g., JAVA, C++, Python, JS, HTML, JavaScript, GO) - Extensive experience in engineering roles specializing in operating system performance optimization, systems optimization, or related areas. Desirables: - Experience in developing ...

experience as a Backend Developer. In-depth knowledge of backend and server technologies. Hands-on experience with server-side programming languages such as C#, Java, or PHP (preference for .NET frameworks). Working knowledge of RESTful applications. Experience with Entity Framework Core . Familiarity with DTO patterns , dependency injection ...

Criteria: Candidates will be tested on algorithmic speed, coding velocity, systems engineering, concurrency, data structures and algorithms and debugging. Exclusions: High-level application developers (Java/Python) or vibecoders. ...

Reasoning, text-embedding-ada-002 Libraries & Tools numpy, pandas, scipy, scikit-learn, tensorflow, keras, nltk, matplotlib, seaborn, plotly Programming Languages Python, R, C++, C#, Java, Node.js, HTML, SQL Agentic AI OpenAI Agents SDK, Model Context Protocol (MCP), LangChain, LangGraph, Bedrock Agents, CrewAI, Helicone Rate:400GBP/day Inside IR35 Work ...

development. Solid understanding of core cybersecurity concepts: network security, cloud security, cryptography, and forensics. Familiarity with scripting or programming (Python, Bash, C/C++, Java). Knowledge of network protocols and common analysis techniques for Windows and/or Linux. Awareness of APTs and their TTPs, and experience interpreting threat ...

application support environment 2+ years’ experience working with Red Hat Linux (or other Unix variants), including scripting 2+ years’ experience supporting applications such as Java, .NET, Apache or IIS Desirable: Experience within the financial services or trading environment Knowledge of Windows Server Familiarity with ITIL frameworks Exposure to market data ...

when required. Must have flexibility/willingness to work on-call hours (both weekday and weekend). Ideally, some software development knowledge (SharePoint, Python, Java or Kotlin) as down the line there will be specifically related projects. Assist with writing of end user and IT documentation as required. Role-based ...

least 1 year of experience as a software engineer in paid full-time employment Knowledge and commercial experience with at least one of, Java, C# or Python Experience with at least one non-managed/manual-memory language , e.g. C, C++, Rust. At least one of the following : Exposure ...

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 ...

field of Software Engineering Proficient with Object Oriented Programming concepts with a strong understanding of Data Structures, Algorithms, and Computer Science fundamentals Experience with Java/Scala (JVM) and Spring along with a good grasp of OO design with strong design patterns knowledge. Experience with cloud-computing platforms such ...

DNAnexus Experience in scientific workflow languages for genomic pipelines (e.g. Nextflow) Skills and Knowledge Essential Ability to use scripting languages such as Python, Java and Bash. Ability to trouble shoot and independently solve problems. Experience with creating, querying and maintaining databases. Demonstrable broad level understanding of molecular biology and human ...

growth-oriented. Nice to Haves (but not required!): Experience in regulated industries such as financial services or energy. Experience writing code (e.g. Python, Java or TypeScript), building data pipelines (ETL), configuring systems, or developing custom applications or AI/ML workflows. A marker that showcases hard work, resilience and dedication ...

Back End Java Developer with experience within the iGaming and Gambling sector looking for a new and exciting challenge? BENEFITS : up to £95k depending on experience, fully remote, excellent benefits package You will be joining a rapidly expanding company within the iGaming sector, who are committed to providing top-tier … brands within our market, blending sports betting and online casino entertainment on a cutting-edge, custom-built platform. You will be a skilled Senior Java Backend Developer who is a self-motivated professional with a strong track record and a passion for excellence. You'll play a key role ...

platforms, and applying strong DevOps, TDD, and modern engineering practice throughout. Key Responsibilities Develop new services using Python while supporting existing components written in Java and .NET Work with Oracle PL/SQL to support legacy and operational systems Engineer solutions across cloud and infrastructure environments including AWS, Azure, Linux … engineers, designers, and product teams to deliver secure, scalable, user-centred services Required Technical Skills Strong experience building digital services with Python Familiarity with Java and .NET for supporting existing systems Skilled in Oracle PL/SQL Experience with AWS and Azure Knowledge of GitHub, Azure DevOps, Docker, Kubernetes ...

Responsibilities Backend Development: Develop and maintain backend services, with Python as the preferred language for new systems. Provide support for services built in Java and .NET, ensuring seamless integration and continued reliability. Enhance and maintain existing solutions using Oracle SQL PL. Database & Data Services: Work with relational databases including Oracle … culture of knowledge sharing and continuous improvement. What We're Looking For Strong experience developing backend services with Python, plus working knowledge of Java and/or .NET. Proficiency in SQL and experience with Oracle PL/SQL or similar technologies. Hands-on experience with cloud platforms (AWS, Azure), containerisation ...

counter derivatives in support of trading, research, valuation and independent price verification. Asset class coverage includes foreign exchange, interest rate and equity derivatives. As Java/Clojure developer working within OTC Derivatives Data you'll be working closely with our product and data specialists across all asset classes, extending … Looking For: Basic Required Qualifications: Degree in computer science or numerate discipline, or equivalent background 3+ years of experience working on distributed Java platforms and Web Platforms Comfortable working with both UNIX/Linux and Windows environments Good understanding of agile software development methodology Thorough understanding of fundamental software engineering ...

design, build, and deliver customer-facing features across our greenfield platform. You’ll work end-to-end—crafting TypeScript frontends and robust Java back-ends—while learning from experienced engineers and contributing to a modern, scalable architecture . This is a hands-on role with plenty of opportunity to develop … mentorship, learning, and engineering excellence. Key Responsibilities Feature Delivery: Collaborate with senior engineers to deliver new features from design to production. Back-End Engineering (Java): Build APIs and microservices using Java (Spring Boot, Micronaut, or Quarkus), with guidance on best practices for performance and reliability. Front-End Engineering (TypeScript – Nuxt ...

Java Developer/Software Engineer (Java AWS Kafka) London/WFH to £90k Are you a bright, ambitious Java technologist who enjoys building systems from scratch? You could be progressing your career at a global, prime broker that is replacing the legacy infrastructure used across capital markets with ...