3,465+ Cloud Native Java Backend Engineer Jobs in Belfast, UK — Local Employers Hiring June 2026

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Cloud Native Java Backend Engineer

Response Informatics is looking for a Software Engineer in Belfast for a 6-month contract with a possibility of full-time employment based on performance. You will be responsible for building and enhancing backend services in a cloud-modernization project for a large-scale email security platform. The ...

Java Backend Engineer Cloud Native & Scalable Systems

A technology company in Northern Ireland is seeking a passionate Backend Engineer to join their engineering group. The ideal candidate will have at least 3 years of experience in Java development and be capable of delivering robust backend solutions. Responsibilities include architecting backend services and sup ...

Senior Backend Engineer (Go/Java) Remote & Cloud Native

Ocho People is seeking a Senior Backend Engineer (Go/Java) to join their innovative team in Northern Ireland. In this fully remote role, you'll design and maintain high-performance backend services that drive improvements in architecture and reliability. Ideal candidates will have over 10 years of expe ...

Java Backend Engineer Cloud & Distributed Systems

Job DescriptionMy client, a global technology company specialising in secure communications and enterprise software solutions, is hiring a Backend Software Engineer to join an established engineering team based in Belfast. This is an exciting opportunity to work on business-critical backend ...

Java Backend Engineer Cloud & Distributed Systems

Job Description My client, a global technology company specialising in secure communications and enterprise software solutions, is hiring a Backend Software Engineer to join an established engineering team based in Belfast. This is an exciting opportunity to work on business-critical backend systems, delivering ...

Senior Java Backend Engineer Cloud Security

Join an innovative startup in the cloud security sector as a Java/Golang Engineer, where you'll develop groundbreaking products and tackle complex engineering challenges. With a dynamic and collaborative work environment, this is your chance to be part of a rapidly growing company that values creativity and inno ...

Principal Java Engineer: Cloud Native Architect (Hybrid)

Principal Java Engineer - Belfast (Hybrid) We're hiring a Principal Java Engineer for one of the most interesting product engineering teams in Belfast. This is a genuine principal‑level role - not a senior engineer with a better title. You'll be setting technical direction, owning architecture dec ...

Java Backend Engineer — Cloud, CI/CD & Modernisation

Enso Recruitment is seeking a backend developer for a key role in Belfast, focusing on designing and maintaining critical Java backend services for enterprise platforms. This position involves collaboration with engineering teams, participating in initiatives for backend modernization, cloud technologi ...

Cloud Backend Engineer (Golang/Java) – Hybrid AWS

Upwind Security, Inc. is seeking an experienced Software Engineer to join their Backend Engineering team. This role involves solving complex engineering challenges and continuously improving solutions while working with all major cloud providers (AWS, GCP, Azure). The position operates on a hybrid mode ...

Hybrid Backend Engineer — Cloud Security (Golang/Java)

Upwind Security, Inc. in Belfast is seeking an experienced Software Engineer to join our Backend Engineering team. The role involves tackling complex engineering challenges, focusing on the lifecycle of short-life projects using cutting-edge technologies such as Golang, Java, Kubernetes, and Docker. You'll co ...

Backend Engineer (Golang/Java) – Hybrid Cloud Platform

A Cloud Security Platform provider based in Belfast is seeking a Backend Engineer with experience in Golang and Java to manage short-life projects from design to deployment. You'll collaborate with other teams, conduct performance analyses, and focus on cloud platforms like AWS and GCP. This hybrid role requires ...

Cybersecurity Backend Engineer (Java/JS/Python) Cloud

MCS Group is seeking multiple Software Engineers to support a global technology organization's Cyber Security Engineering teams in Belfast. This opportunity involves designing and developing scalable backend services, APIs, and cloud-native applications in a collaborative environment. Candidates should have 3+ y ...

Software Engineer, Java Backend

About the job Software Engineer, Java Backend Job Description: Location: On-site, Hybrid. Start date: As soon as possible. Languages: Fluent in English. Join the Mineo Team Were Hiring! At Mineo, we are creating the future of recruitment with an innovative ...

Senior Backend Developer ( Go/Java)

Senior Backend Engineer (Go / Java) - Exciting NEW Exclusive OchoX FDI - Remote first company Salary circa £100k bonus benefits Please note candidates should reside in Northern Ireland to be eligible to apply. About the Company: Our client is a fast-growing SaaS organisation. Their AI powered technology helps F ...

Senior Backend Engineer Remote UK, API First Cloud Native

Ocho is seeking a Senior Software Engineer with a strong background in Node.js to work remotely from anywhere in the UK. This role involves building and maintaining scalable server-side systems that support high-traffic digital commerce experiences, with a focus on API design, integrations, and data pipelines ...

Senior Backend Developer ( Go/Java)

Senior Backend Engineer (Go / Java) - Exciting NEW Exclusive OchoX FDI - Remote first company Salary circa £100k+ bonus + benefits Please note candidates should reside in Northern Ireland to be eligible to apply. About the Company: ...

Senior Cloud Backend Engineer

Instil Software Ltd is seeking experienced Senior Software Engineers to design and build backend services with modern cloud platforms. Ideal candidates will have a strong grasp of C#, TypeScript, or Java and enjoy contributing to system architecture and mentoring junior engineers. The position offers flexibil ...

Senior Cloud Backend Engineer

Instil Software Ltd is seeking experienced Senior Software Engineers to design and build backend services with modern cloud platforms. Ideal candidates will have a strong grasp of C#, TypeScript, or Java and enjoy contributing to system architecture and mentoring junior engineers. The position offers flexibil ...

Backend Java Developer

Qualifications Experience with Java NIO components like Channels Buffers and Selectors is expected Expert knowledge of FIX protocol Market Connectivity and Low latency programming is a must Very strong in Java and Spring Boot based application development Experience with m ...

Software Engineer

MPA are partnering with an elite Canadian tech firm expanding into Belfast to hire a hands-on Software Engineer to build and scale enterprise-grade cloud, API, and data systems. This role is ideal for engineers who thrive on solving complex, production-scale challenges, from streaming pipel ...

Backend Software Engineer

Backend Software Engineer Belfast (Hybrid - 3 days in office) | Full-time At a Glance Role: Backend Software Engineer Location: Belfast - Hybrid (3 days in office) Employment Type: </ ...

Java Backend Engineer – Fintech Payments & Microservices

Mifinity in Belfast is seeking a backend developer to work on payment processing engines and merchant integration services. The role involves developing efficient Java code and ensuring scalability of applications. Ideal candidates have a minimum of 3 years’ experience in Java enterprise software, with ...

Backend Engineer, Developer Enablement (Java/Kotlin)

A global financial services firm in Belfast is seeking a server side engineer to join its Chief Technology Office. This role emphasizes driving solutions within projects like SDLC Automation and Release on Demand, enhancing productivity for 30k engineers. The ideal candidate will write quality code in Kotlin or ...

Low Latency Java Backend Engineer – Trading

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. Messag ...

Senior Java Backend Engineer Remote Microservices

An innovative AI-driven recruitment company in the UK seeks a Software Engineer specializing in Java Backend. This position involves designing and operating scalable microservices while collaborating with a dynamic, global team. Candidates should hold an MSc in Computer Science and have over 3 years of software ...

Hybrid AWS Backend Engineer Golang/Java

A leading security technology company in Northern Ireland seeks a Backend Engineer to manage project lifecycles from design to deployment. The successful candidate will have at least 1 year of experience in Golang or Java, alongside knowledge of cloud platforms such as AWS or Azure. This role offers a hybrid wor ...

Java Backend Engineer (Junior) – Flexible, Belfast

hackajob is assisting EY in finding a Junior Java Engineer in Belfast. In this role, you will be responsible for backend development, ensuring quality code, and collaborating closely with the product team. A Bachelor's degree and minimum 2 years of experience in software development are required. Enjoy ...

Java Software Engineer

Duration: 6 months, post which the probability to convert to FTE based on performance Your Day-to-Day As a Software Engineer, you will: Build and enhance backend services while contributing to the cloud‑modernization of our large‑scale, containerized and distributed ...

Principal Java Developer

Principal Java Engineer - Microservices / Event-Driven Architecture At a Glance Principal-level Java engineering role at a high-growth scaleup Event-driven microservices architecture - leading legacy monolith decomposition Flexible / hybrid working Salary: 75-85k Architecture ownership, mentorship, and real engi ...

Experienced Backend Java Developers

Citi Belfast are hiring for Experienced Backend Java Developers with a skillset ranging from Assistant Vice President to Senior Vice President responsible for contributing to a variety of development activities. The overall objective of these roles is to assist/lead in applications systems development, analys ...

Experienced Backend Java Developers

**_Engineer the future of global finance. At Citi, our Tech team doesn’t just support finance – we are helping to redefine it. Every day, $5 trillion crosses through our network. We do business in 180+ countries operating at a scale few can match. From deploying advanced AI to helping shape global markets, we bu ...

Experienced Backend Java Developers

Overview Engineer the future of global finance. At Citi, our Tech team doesn’t just support finance – we are helping to redefine it. Every day, $5 trillion crosses through our network. We do business in 180+ countries operating at a scale few can match. From deploying advanced AI to helping shape ...

Experienced Backend Java Developers

Overview Engineer the future of global finance. At Citi, our Tech team doesn’t just support finance – we are helping to redefine it. Every day, $5 trillion crosses through our network. We do business in 180+ countries operating at a scale few can match. From deploying advanced AI to helping shape ...

Experienced Backend Java Developers

## Experienced Backend Java DevelopersApplyremote type: Hybridlocations: Belfast United Kingdomtime type: Full timeposted on: Posted Todayjob requisition id: ***Engineer the future of global finance. At Citi, our Tech team doesn’t just support finance – we are helping to redefine it. Every day, $5 tri ...

Senior Backend Engineer

Senior Backend Engineer (Java / Go) Candidates must be based in NI. All applications not based in NI will be disregarded. Do you enjoy building high-performance backend systems in Java or Go? Our client is looking for a Senior Backend Engineer to join a growing engineering team working on ...

Contract Java Engineers

Contract Senior Java Engineer Overview Ocho is partnering with a global technology organisation to hire a Contract Senior Java Engineer to join a high-performing engineering team working on large-scale enterprise platforms within a real-time data environment. This is an opportun ...

Low Latency Java Backend Engineer | Spring Boot

Net2Source (N2S) is seeking an experienced Java developer in Belfast, Northern Ireland, with strong expertise in Spring Boot and microservices. The ideal candidate will have extensive experience with low-latency programming, RDBMS concepts, and CI/CD tools in a financial services environment. A bachelo ...

Senior Backend Java Engineer – Hybrid, Global Finance

Citibank (Switzerland) AG in Belfast is looking for Experienced Backend Java Developers to join their Tech team. You will play a key role in developing applications that support global finance, delivering solutions that impact economies and innovation. The position offers a hybrid working model, compet ...

Junior Java Engineer — Flexible Backend & Digital Solutions

EY is seeking a Junior Java Engineer to join their Digital Engineering team in Belfast. The role involves designing and delivering backend solutions, coding new developments, ensuring code quality, collaborating with product teams, and managing live incidents. Applicants should have a Bachelor's degree in a rela ...

Staff Java Backend Engineer APIs & Banking Tech

Java Script Works is seeking a Staff Software Engineer specializing in Java backend development, based in Belfast, United Kingdom. The ideal candidate must have expertise in Core Java, JEE technologies, and API Development, with knowledge in Banking or similar sectors. This full-time role offers a comp ...

Latency Driven Backend Engineer (Java, Microservices, FIX)

Net2Source (N2S) is seeking a skilled candidate to join their team in Belfast. The role focuses on technical requirements primarily in the financial services domain, requiring strong expertise in Java and Spring Boot. The ideal candidate will excel in analytical and communication skills, with proven experienc ...

Senior Java Backend Engineer — Cybersecurity, Hybrid Belfast

Enably is looking for a Senior Java Software Engineer to join a Belfast-based cybersecurity company. This hybrid role requires 3 days a week in the office, focusing on backend systems and software quality. The successful candidate will contribute to technical direction and help maintain high code stand ...

Senior Backend Engineer (Node.js / TypeScript, Remote)

Senior Backend Engineer | Node.js / TypeScript | Remote First Senior backend engineering role within a modern cloud-native consultancy Build scalable APIs, microservices, and distributed systems using Node.js & TypeScript Remote-first with access to Belfast & London co-working hubs Salary up to £75k EMI share o ...

Senior Cloud Backend Engineer – Build Scalable Systems

Instil is seeking experienced Senior Software Engineers to design and build backend services using C#, TypeScript, or Java. This role emphasizes cloud-native application development across AWS, Azure, or GCP while fostering a strong engineering culture. Ideal candidates will have a solid background in ...

Senior Cloud Backend Engineer – Build Scalable Systems

Instil is seeking experienced Senior Software Engineers to design and build backend services using C#, TypeScript, or Java. This role emphasizes cloud-native application development across AWS, Azure, or GCP while fostering a strong engineering culture. Ideal candidates will have a solid background in ...

Senior Software Engineer Java

Senior Software Engineer Java Belfast | Hybrid | Permanent At a Glance Senior backend role on a collaborative, globally distributed engineering team Core services work powering a high-scale content platform Microservices-focused with real modernisation scope Hybrid working from Belfast Salary: £60,000 Who You'll ...

Lead Backend Engineer (Node.js / TypeScript /Remote)

Lead Backend Engineer | Node.js / TypeScript | Remote First Lead backend engineering across modern cloud-native platforms Own technical direction, architecture, and engineering standards Remote-first with Belfast & London co-working hubs Salary up to £95k EMI share options Exclusive opportunity through Ocho Peo ...

Principal Java Developer

Principal Java Engineer - Microservices / Event-Driven ArchitectureAt a GlancePrincipal-level Java engineering role at a high-growth scaleup Event-driven microservices architecture - leading legacy monolith decomposition Flexible / hybrid working Salary: 75-85 ...

Principal Software Engineer

Principal Java Engineer - Belfast (Hybrid) We're hiring a Principal Java Engineer for one of the most interesting product engineering teams in Belfast. This is a genuine principal‑level role - not a senior engineer with a better title. You'll be setting technical direction, owning architecture dec ...

Backend Software Engineer AWS

Backend Developer AWS | Belfast (Hybrid 3 Days) Location: BelfastType: Full-time About the Opportunity: This is an opportunity to join a high-performing backend engineering team working on a modern cloud security platform. The environment ...

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