Java Software Engineer Core Java Jobs in UK

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Full Stack Software Engineer

Overview Our professional services client is currently supporting a large cloud transformation initiative for a multinational FS organization. This is an enterprise-wide cloud-based programme and there is scope for more business units to consume the cloud services which are being implemented. ...

Java Lead Kubernetes Cloud Native Trading Platform

JPMorgan Chase & Co. is seeking a Software Engineer in London to enhance and migrate the trade processing platform to a cloud-native architecture. As part of an Agile team in Investment Banking, you'll execute software solutions, develop high-quality production code, and be involved in critical technology soluti ...

Senior Staff Software Engineer Onboarding Platform

Indeed, Inc. seeks a skilled software engineer in Greater London to drive the design and operation of scalable software systems. The ideal candidate will have extensive experience in software design, team mentorship, and technical decision-making. A Bachelor’s degree in a relevant field with substantial experien ...

Senior Software Engineer, Hardware Integrated Systems

Expleo is seeking a Senior Software Engineer in Bristol to join a specialist team developing next-generation Air Defence Systems. This role involves creating robust software solutions across the entire product lifecycle, working closely with electronics and hardware teams to deliver high-quality outputs. ...

Senior Software Engineer, Hardware Integrated Systems

Expleo is seeking a Senior Software Engineer in Bristol to join a specialist team developing next-generation Air Defence Systems. This role involves creating robust software solutions across the entire product lifecycle, working closely with electronics and hardware teams to deliver high-quality outputs. ...

Senior Staff Software Engineer Onboarding Platform

Indeed, Inc. seeks a skilled software engineer in Greater London to drive the design and operation of scalable software systems. The ideal candidate will have extensive experience in software design, team mentorship, and technical decision-making. A Bachelor’s degree in a relevant field with substantial experien ...

Java Lead Kubernetes Cloud Native Trading Platform

JPMorgan Chase & Co. is seeking a Software Engineer in London to enhance and migrate the trade processing platform to a cloud-native architecture. As part of an Agile team in Investment Banking, you'll execute software solutions, develop high-quality production code, and be involved in critical technology soluti ...

Secret Cleared Principal Software Engineer (MILSATCOM)

A leading defense contractor is seeking a Principal Software Engineer to join their team in the United Kingdom. This role involves designing, engineering, and developing software prototypes as part of a multi-disciplinary team. The ideal candidate should have over 7 years of software development experience, stro ...

Senior Software Engineer Hybrid, AI Driven Fintech

A financial technology company in the United Kingdom is seeking a Senior Software Engineer to design, develop, and maintain high-quality software solutions. The role involves collaborating with cross-functional teams, engaging in automated testing, and contributing to product releases. Candidates should have a B ...

Senior Software Engineer

Are you a Senior Software Engineer looking for an interesting job opportunity? Our client, TKMS ATLAS UK, are seeking a Senior Software Engineer with skills in Java to work on the development of marine-based autonomous systems. This job will be based out of TKMS ATLAS UK's headquarters in Winfrith, Do ...

Senior Software Engineer

Are you a Senior Software Engineer looking for an interesting job opportunity? Our client, TKMS ATLAS UK, are seeking a Senior Software Engineer with skills in Java to work on the development of marine-based autonomous systems. This job will be based out of TKMS ATLAS UK's headquarters in Winfrith, Do ...

Senior C/C++ Developer (with Java experience) in Birmingham Version 1

Senior C/C++ Developer (with Java experience) Birmingham, United Kingdom Tech stack React Windows Java TypeScript C JavaScript Requirements Development on a Windows environment. Prior softwar ...

Principal Software Engineer — Scale & Cloud (Remote UK)

A leading technology recruitment agency is seeking a remote-first Principal Engineer for a key role with a client known for their high-performance software solutions. The ideal candidate will have over 10 years of software engineering experience, expertise in C# or Java, and a solid grasp of cloud technologies. ...

QA Engineer Fintech Selenium Java in London Quant Capital

Job Opportunity Details My client is based in Central London, and this role offers a hybrid approach - 1 day a week in the office, potentially 4 days per month in bulk. Skills Required QA Java Engineer Java Developer React.JS Growth JavaScript C ...

Senior Software Engineer – PriceFX Implementation

About Client: Our Client is a premier global software products and services firm that specializes in providing innovative solutions and services for data-driven enterprises. Our focus is to empower businesses to achieve their digital transformation goals and maximize their business impact through the effectiv ...

Senior Software Engineer – PriceFX Implementation

About Client: Our Client is a premier global software products and services firm that specializes in providing innovative solutions and services for data-driven enterprises. Our focus is to empower businesses to achieve their digital transformation goals and maximize their business impact through the effectiv ...

Software Engineer

We are seeking a high‑velocity Full Stack Developer to join our engineering team in a fast‑paced startup environment. This role is designed for a self‑starting engineer who can deliver end‑to‑end solutions independently with minimal technical guidance. Role and Responsibilities Inde ...

Backend Developer

Job Description:Core Java & Frameworks: Strong Core Java and Spring Boot application development; experience with Java NIO (Channels, Buffers, Selectors) is expected.Low-Latency & Trading Systems: Expert knowledge of FIX protocol, Market Connectivity, and low-latency programming.M ...

Software Engineer: Build Scalable, Secure Energy Software

bp in Sunbury-on-Thames is seeking a Software Engineer to grow its digital capabilities. In this exciting role, you will develop and implement reliable software solutions while working collaboratively with your team and stakeholders. Required skills include experience with Agile practices, proficiency in program ...

Senior Software Engineer — FinTech Payments & Banking Integrations

A leading fintech company in Greater London is looking for a Software Engineer to drive the development of payment technologies. In this role, you'll integrate new bank APIs and work on a variety of challenges in crypto and fintech. Ideal candidates should have a strong knowledge of Java and enterprise software, ...

Senior Software Engineer, Unified Platform Global Markets

A leading trading firm in the UK is seeking a Senior Software Engineer to join their Unified Platform organization. This role involves developing tools for data acquisition, storage, and visualization, while collaborating closely with analysts and traders. The ideal candidate will have 2-3 years of software deve ...

Senior Software Engineer IAM Platform & Delivery

A global leader in information and analytics is seeking a Senior Software Engineer to design scalable and high-performance systems. This role involves complex technical challenges and mentoring junior team members within a dynamic IAM squad. The ideal candidate should possess over 4 years of software engineering ...

Senior Software Engineer FinTech Trading Systems (London)

SoCode Limited is seeking a Contract Senior Software Engineer (Java or Python) in London for a 6-month role with potential extension. You will develop and support P&L, accounting, and returns-calculation applications while collaborating with financial professionals. Ideal candidates will have 8+ years of experie ...

Senior GenAI Platform Engineer

A global information provider is seeking a Senior Software Engineer II to drive architectural decisions and develop generative AI services. The ideal candidate should have over 5 years of software engineering experience, deep expertise in Python or Java, and strong experience with Kubernetes. Responsible for des ...

PKI & Identity Security Software Engineer

A leading recruitment agency is seeking a talented software engineer to develop high-volume PKI solutions in an agile environment. The ideal candidate will have experience with Go, Java, C++, or Python, and possess knowledge of full-stack applications, REST APIs, and DevOps principles. Strong communication skill ...

Graduate Software Engineer: Real Work, Mentorship, Growth

A tech-driven insurtech company in Greater London is seeking a Graduate Software Engineer to join their product team. You will be involved in building real software from day one, collaborating with engineers and designers, and gaining mentorship and experience in a diverse tech stack including Java and React/Nex ...

Senior Fullstack Engineer Flexible, Bonus Eligible

Legal & General is seeking a Senior Software Engineer to join a high-performing engineering team in Greater London. This role entails building robust, scalable software solutions using Java/JVM technologies, coaching team members, and contributing to improving engineering practices. The ideal candidate will poss ...

Senior Full Stack Engineer — AI Driven, TS/Vue, AWS

A financial services company located in Manchester is seeking an experienced Senior Software Engineer. You'll work in collaborative teams, utilizing AWS and technologies like Typescript and Java, to lead feature delivery and mentor peers. The role encourages innovation and perspectives on modern coding practices ...

Senior Android Engineer Kotlin, Scale & Impact

A leading food delivery service in Greater London is seeking a Software Engineer to enhance their technology infrastructure. The role involves improving code structure and architecture, as well as leading projects in a collaborative environment. Ideal candidates will have over 3 years of experience in Android de ...

Senior AEM Engineer (Hybrid) — Build Digital Experiences

Nuffield Health is seeking a Senior Software Engineer with expertise in Adobe Experience Manager (AEM) to enhance our digital services. The role involves full-stack development and collaborating with cross-functional teams in a hybrid working environment. The ideal candidate will have strong skills in AEM 6.x, J ...

DV‑Cleared Senior Software Engineer — Secure Systems

A prominent UK security agency seeks a Senior Software Engineer to tackle mission-critical challenges in Cheltenham. You'll design, develop, and maintain software solutions using languages like Java, Python, and more. The job includes mentoring and working with cross-functional teams while engaging with various ...

Senior Backend Infra Engineer Scalable Systems

A leading software company in Greater London is searching for a Software Engineer to develop scalable and reliable infrastructure systems. You will be engaged in diverse tasks such as building a search ecosystem, contributing to open-source libraries, and crafting distributed systems. The position demands over 6 ...

Senior Software Engineer – Full Stack & Scalable Systems

GOOGLE is looking for a Software Engineer in Greater London to develop next-generation technologies that impact billions of users. You'll participate in design reviews, review code for best practices, and work on full-stack development using languages like Java, Python, and JavaScript. A Bachelor’s degree or equ ...

Senior Software Engineer — Space Systems (Hybrid, ESOP)

A technology firm is looking for a Senior Software Engineer to join their team in Tipton, UK. The position involves software development for space communication systems and requires an active Secret clearance. Candidates should have a BS in Computer Science and 3-6 years of development experience, with skills in ...

Senior Software Engineer – Hybrid Finance Tech (Markets Ops)

Citigroup Inc. is seeking a Senior Software Engineer in Belfast. You will help redefine global finance by building robust software solutions in a dynamic team environment focused on integration and automation. Ideal candidates have strong programming skills primarily in Java, React, and Python, along with experi ...

FinTech Senior Software Engineer & Tech Lead

Ports North is seeking a Senior Software Engineer located in London to lead a development team in creating a market-leading OTC derivatives solution. You will drive Agile processes and manage the product backlog while mentoring team members. The ideal candidate will bring over 10 years of software engi ...

Backend Engineer Crypto Trading Platform (Go)

Talos, based in London, is seeking a Software Engineer to build high-performance backend systems for crypto trading. You will work on various components including order routing and risk systems, ensuring performance and security in a fast-paced environment. Candidates should have over 3 years of software enginee ...

Software Engineer Media Streaming & Scalable Platforms

BBC Studios in London is seeking a Software Engineer to join their Media Services team. In this role, you will design and maintain software that powers audio and video experiences for millions. The position requires proficiency in Java and a bachelor’s degree in Computer Science. Expected salary ranges from £43, ...

Trading Connectivity Backend Engineer

A leading technology firm in the digital asset market is seeking a Software Engineer to join their Trading Connectivity team in London. In this role, you will design and maintain high-performance backend systems that connect with various liquidity providers. The ideal candidate has 1-3 years of experience in sof ...

FinTech Senior Software Engineer & Tech Lead

Ports North is seeking a Senior Software Engineer located in London to lead a development team in creating a market-leading OTC derivatives solution. You will drive Agile processes and manage the product backlog while mentoring team members. The ideal candidate will bring over 10 years of software engi ...

Engineering Lead: Architecting Scalable Systems

JPMorgan Chase & Co. is seeking an experienced software engineer in Greater London. The role involves leading system design and development using Java or Python, driving technical improvements, and mentoring junior engineers. Candidates should possess hands-on experience in software development, a deep understan ...

Engineering Lead: Architecting Scalable Systems

JPMorgan Chase & Co. is seeking an experienced software engineer in Greater London. The role involves leading system design and development using Java or Python, driving technical improvements, and mentoring junior engineers. Candidates should possess hands-on experience in software development, a deep understan ...

Senior AEM Engineer (Hybrid) — Build Digital Experiences

Nuffield Health is seeking a Senior Software Engineer with expertise in Adobe Experience Manager (AEM) to enhance our digital services. The role involves full-stack development and collaborating with cross-functional teams in a hybrid working environment. The ideal candidate will have strong skills in AEM 6.x, J ...

Senior Software Engineer – Full Stack & Scalable Systems

GOOGLE is looking for a Software Engineer in Greater London to develop next-generation technologies that impact billions of users. You'll participate in design reviews, review code for best practices, and work on full-stack development using languages like Java, Python, and JavaScript. A Bachelor’s degree or equ ...

Web & Emerging Modalities Engineer — Full Stack Innovator

Amazon is looking for a Software Development Engineer for the Prime Video team in London. You will work on innovative customer experiences and lead projects using full-stack web technologies and AWS. Ideal candidates have experience in professional software development, proficiency in Java, C++, or C#, and are e ...

Trade Tech Software Engineer — Real Time Distributed Systems

G-Research in Greater London is seeking a Software Engineer to join their Trade Technology team. You will design and develop robust trading platforms, ensuring they are efficient and reliable. Ideal candidates should have a strong background in software engineering, proficiency in languages like Java or C++, and ...

Senior Fullstack Engineer Flexible, Bonus Eligible

Legal & General is seeking a Senior Software Engineer to join a high-performing engineering team in Greater London. This role entails building robust, scalable software solutions using Java/JVM technologies, coaching team members, and contributing to improving engineering practices. The ideal candidate will poss ...

Senior Software Engineer, Unified Platform Global Markets

A diversified trading firm in Greater London is seeking a Senior Software Engineer to join their Unified Platform team. The role involves developing software solutions for data acquisition and visualization while collaborating closely with internal users. Candidates should have strong experience in Java or Pytho ...

Senior Software Engineer IAM Platform & Delivery

A global leader in information and analytics is seeking a Senior Software Engineer to design scalable and high-performance systems. This role involves complex technical challenges and mentoring junior team members within a dynamic IAM squad. The ideal candidate should possess over 4 years of software engineering ...

Senior Software Engineer — FinTech Payments & Banking Integrations

A leading fintech company in Greater London is looking for a Software Engineer to drive the development of payment technologies. In this role, you'll integrate new bank APIs and work on a variety of challenges in crypto and fintech. Ideal candidates should have a strong knowledge of Java and enterprise software, ...

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    Java Software Engineer Core Java Jobs in United Kingdom Job Search Guide, Trends and Insights