core java developer jobs in Berkshire

You will develop and consolidate systems, write software, guide a team of developers, and take ownership of several critical platforms.

You will work closely with senior stakeholders including the CTO, COO, Head of Operations, and Project Management.

Lead Software Engineer (Java) – London / Hybrid Are you a Lead Backend Engineer with a strong background in Java and modern backend architecture? In this senior technical leadership role, you will set the technical vision, influence system design, and guide teams in delivering secure, scalable, and high-performing services. While remaining hands-on for key projects, you will focus on mentoring...

You will work closely with traders, quants, financial engineers, and technology partners, contributing directly to the performance, resilience, and evolution of a mission-critical e-trading platform. What You’ll Be Doing - Design, build, and enhance a robust, ultra-low latency Fixed Income electronic trading platform

3 days Onsite per week from London Office. Required skills and qualifications: Extensive experience in kdb+/q, including the design of large kdb+ systems. Strong understanding of computer science fundamentals and modern software development practices. Experience with development in a Unix and/or Linux environment. Core Java development experience is often required. Experience with...

Senior Java Swing Developer – About the Role We’re looking for a Java Swing Developer to join a team working on a high-performance desktop trading platform. Working on a mission-critical system that supports FX Cash, deposits, futures, swaps, and more. The platform is rich in functionality, handles heavy loads with low latency, and underpins key trading and sales workflows. You’ll help...

You will be an exceptional C++ developer responsible for the optimization of core high performance trading systems. The role is built on low latency infrastructure and will require you to have exceptional modern C++ knowledge.

You will be working with the front office at all levels to ensure that the requirements, design and build are conducted accurately and efficiently. The most important responsibility, however is applying your etrading platform experience to a high quality development environment.

Java Developer | London/Hybrid | £100,000 - £140,000 | Java 21 | Microservices | TDD | AWS | PostgreSQL | Kubernetes | Fintech | Digital Banking Looking to join a company who are making waves within the fintech space? Want to work with the latest Java technology? I am supporting a rapidly growing fintech scaleup who are PE backed by the same investors who backed the likes of Coinbase and...

Back End Developer / SRE (Java JVM) London / WFH to £110k Are you a Back End Developer / SRE with a strong knowledge of Java and JVM internals? You could be progressing your career in an impactful role at a global Fintech that has been consistently voted as one of the UKs top employers. What's in it for you: - Salary to £110k + Bonus - Pension, Private Medical Care, Life Assurance - Option to...

You will design and scale Java 21 microservices on Google Cloud Platform, processing millions of daily transactions. This role offers the chance to influence architecture while delivering high-throughput digital receipts and messaging solutions that redefine the retail experience.

About the job Senior Java Developer - £65 K Our client is recognised internationally for its expertise in the archiving and digital preservation of valuable data across a range of industry sectors including life sciences, heritage and higher education. They are seeking a talented and self‑motivated Senior Java Developer to join an Agile development team based in their Reading...

You will act as a technical subject matter expert in IMS with a strong analytical approach to troubleshooting, root cause analysis (RCA), and end-to-end (E2E) testing. The role involves defining and executing comprehensive test strategies, supporting client and application validation, and working closely with R&D, customers, and third parties to ensure high-quality IMS solutions.

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 and financial services environments globally. This is an...

Overview Job Description: We are searching for an experienced Digital Professional with experience across Supply and SAP to join the Pet Nutrition Europe (PNE) Digital team to lead the delivery of the transformation of our Digital Core (Supply, Commercial, R&D, Sustainability and Finance) while also driving Run & Growth agenda of the 40 countries across Pet Nutrition Europe. The role reports to...

Job Title: Java Developer (Electronic Trading Platform - FIC) Contract Type: Outside IR35 Location: London Day Rate: Up to £950 per day Flexible Hybrid working: 1-2 days a week in London City offices Client: Prestigious Investment Bank Industry: Investment Banking Duration: 12 months +. Also open to contract to permanent conversions Overview: We are seeking an experienced Java Developer...

You will be encouraged to evangelise and prototype new technologies and approaches to help shape the evolving architecture. The successful candidate must be: - Experienced in Core Java

Java Software Engineer A leading trading firm in London is growing its engineering team and is looking for a high-performance Java Engineer to help build ultra-low-latency systems used directly on live trading desks. What You’ll Be Doing - Designing and building low-latency Java systems used in electronic trading - Developing highly concurrent, multithreaded applications - Optimising...

You will also collaborate with the Platform, Support and DevEx teams on the wider technical strategy, reporting to the Director of Engineering in an influential role.

You will act as a technical subject matter expert in IMS with a strong analytical approach to troubleshooting, root cause analysis (RCA), and end-to-end (E2E) testing. The role involves defining and executing comprehensive test strategies, supporting client and application validation, and working closely with R&D, customers, and third parties to ensure high-quality IMS solutions.

You will design and implement cloud-scale software components, guide team members, and ensure high-quality deliverables. Candidates should have over 5 years’ experience in software solutions, proficiency in Java and microservices, and familiarity with Agile methodologies. This position offers a competitive salary of £65 K.