26 to 50 of 135 Java Jobs in the City of London

both new and existing systems. Provide on‐call support as needed. Qualifications A minimum of 2+ years’ experience using at least one of Python, Java, and C++, and can work comfortably in multiple programming languages A track record of working directly with end customers, scoping and delivering production systems ...

research, backtesting or factor modelling; full stack familiarity (Flask, Django, FastAPI); SaaS build/deploy on cloud (Docker, AWS or similar); an understanding of Java; and experience in quantitative finance or with financial market data. Qualifications & Experience: Bachelor's or Master's in Computer Science, Data Science, IT, Electrical Engineering ...

Senior Java Engineer - Payments £60,000 TO 80,000 GBP Onsite WORKING Location: Central London, Greater London - United Kingdom Type: Permanent Senior Java Engineer - Payments UK Wide or Dublin | Remote First | Permanent We are currently recruiting for an experienced Senior Java Engineer to join a leading technology consultancy delivering large … banking stakeholders to build highly scalable, secure and resilient payment solutions. ICON IPF experience is essential for this position. The Role As a Senior Java Engineer, you will: Develop and deliver large-scale payment solutions using Java 11, Spring Boot and microservices . Work extensively with ICON IPF within complex ...

Role Overview TP ICAP are looking for a Senior Java Developer delivering low‐latency, highly available trading system components with deep expertise in Java, FIX connectivity, and distributed real‐time messaging. In this role, you will be responsible for designing, building, and optimising mission‐critical trading services across multiple asset … classes. Role Responsibilities Design and implement distributed, fault‐tolerant Java services for electronic trading environments Lead performance tuning, optimisation, and refactoring of low‐latency trading components Investigate and resolve production issues, ensuring system stability and high availability Collaborate with global teams, including Architecture, DevOps, and Product Mentor and guide engineers ...

operates reliably. This role balances hands-on delivery with architectural ownership. The ideal candidate has 7+ years of software engineering experience, with a strong Java/Spring Boot background and proficiency in designing cloud-native microservices. Competitive benefits and flexible working are offered. #J-18808-Ljbffr ...

/CD (experience with GitHub Actions and Jenkins would be ideal) Coding skills in Python, preferably with some exposure to JavaScript and Java A solid understanding of IT security principles Full existing UK work permission without time limit or the need for sponsorship This is a great opportunity to join ...

SAST/SCA tools such as Snyk, Veracode, Checkmarx or similar - Proficient in one or more of the following languages - Python, JavaScript, .NET or Java - Demonstrated experience with development tools including GitLab/GitHub, Datadog, Jira, Docker, and various IDEs Desirable Skills/Experience: - Experience with cloud services, particularly ...

concepts and applied experience Recent hands-on professional experience as a back-end software engineer Experience in coding in a recent version of the Java programming language Experience in designing and implementing effective tests (unit, component, integration, end-to-end, performance, etc.) Excellent written and verbal communication skills in English ...

strengthen architectural foresight.Work onsite in London.Minimum QualificationsBachelor's degree in Engineering, Computer Science, Mathematics, or a related technical field.3+ years of experience in Java programming and Spring Boot.Passionate about technology and continuous improvement, demonstrating exceptional coding proficiency, a commitment to clean and elegant code, and a keen interest in exploring ...

Java Developer (Market Data) – Java, SpringBoot, Pricing, Risk Systems, Market Data, Trading, Clearing, Post-Trade, Financial Services - London - Up to £850p.d Inside IR35 Via Umbrella My Client, a global Financial Services organisation based in the City are searching for a Senior Java Developer to join them on a contract basis. … engineering in which you will be responsible to design and develop systems to leverage and audit market/Reference data feeds. As a Senior Java Developer, you will undertake a mixture of server-side development in Java & SpringBoot, partnered with being a part of business facing initiatives to modernise ...

Jefferies in London seeks a technically oriented engineer to join the Equity technology team, focusing on developing and maintaining the Equity Swaps platform for front and middle office users across time zones. You will collaborate ...

team in London. This role involves delivering innovative cloud-native solutions and ensuring high-quality software throughout its lifecycle. The ideal candidate has strong Java skills, a solid understanding of distributed systems, and a commitment to security and reliability. Collaborate in a diverse team to shape the future of digital ...

tasks related to data tracking, collection, ingestion, quality monitoring and alerting. Experience 5+ years data analysis experience developing applications including Scala/Java and/or Python. Experience managing batching and/or streaming data pipelines and infrastructure using technologies such as GCP, Dataflow/Apache Beam, Dataproc, Spark/ ...

issue resolution and platform optimization. Skills, Experience & Expertise Proven experience designing, developing, and deploying AEM solutions as a Cloud Service . Strong knowledge of Java, JSP, Sling, OSGi, and Sightly/HTL . Experience with Adobe Assets, Adobe Marketo , and familiarity with Adobe Analytics and Adobe Target (advantageous). Strong ...

scaling) of new and existing systems. 1+years of experience as a mentor, tech lead or leading an engineering team. Strong coding skills in Go, Java, or equivalent. Experience designing, building, and operating high-scale observability or infrastructure systems. Bachelor's degree in Computer Science or equivalent. Life at Palantir ...

preferred in fields such as Computer Science, Mathematics, Software Engineering, Physics, and Data Science. Proficiency with one or more programming languages, such as Python, Java, C++, TypeScript/JavaScript, or similar. Must be graduating in 2026 or before. To apply, please submit the following: An updated resume/CV – please ...

support the full trade lifecycle Contribute to a culture of innovation, transparency, and continuous learning Qualifications 3+ years of software engineering experience in Go, Java, C++, C#, or Python B.S. or M.S. in Computer Science, related field, or equivalent experience Experience working with complex backend systems Strong problem-solving skills ...

Java Developer (London, Hybrid) Location: London UK Working Mode: 3 days on site in City of London IR35 Categorisation: Inside Rate: £600 per day We're looking for a Java Developer to join our client (Investment Banking) in a hybrid working model (London, 3 days per week). You will … office processing Provide technical expertise and recommendations for enhancements of existing applications and evaluation of new initiatives Develop clean, secure, and efficient code in Java and Python and work with scripting tools such as PowerShell or Bash Conduct code reviews, unit testing, and participate in application architecture discussions Ensure compliance ...

Atyeti in London is seeking a Senior Azure Cloud Architect to lead migration and modernization of enterprise Java applications from on-prem to Microsoft Azure. You will define landing zones, governance, and design secure, scalable Azure architectures, while modernizing applications from monoliths to microservices where applicable. This role requires strong ...

technology company in London is seeking a Software Engineer to design and maintain backend services for crypto trading. This role requires expertise in Go, Java, C++, C#, or Python, and offers a hybrid work environment. Ideal candidates will have problem-solving skills and a proactive mindset, along with a degree ...

skills and experience are required for this role: Technically minded. Comfortable both as architect and hands-on developer. Strong and experienced C++ developer. Capable Java developer with coding experience in the workplace. Strong hands-on experience with multi-threading, and real-time systems. Using SQL, preferably MS SQL Server. Experience ...

Level Accelerator programme with a linked job role is perfect for those who have 1.5+ years of experience in Software or Data Engineering (Python), Java or JavaScript and are looking to progress their career and move into a Mid-Level technical role with a new and exciting opportunity with ...

essential. Essential Technical Skills: Proficiency across a range of web and software development technologies, including: HTML CSS (including frameworks like SCSS) JavaScript PHP Java Key Development Concepts & Tools : REST APIs SQL (for database management) MVC Architecture Mobile Development Search Engine Optimisation (SEO) Desirable: Python and AI Application ...

architecture. Working knowledge of product and/or project management and Software development Life Cycle (SDLC). General knowledge of technical reference architectures in Java, .NET, SQL and SOA required. General knowledge of experience with influencing people in a matrixed organization. Thorough knowledge of experience in multiple technologies and architectures. ...

McGregor Boyall seeks an Associate-level eTrading Strategist/Developer for its Global Markets technology group in London. The role focuses on designing and developing algorithmic trading strategies and electronic trading platforms across global fixed ...