24 of 24 Permanent Java Jobs in Northern Ireland

Full Stack Engineer

Hiring Organisation
Leap29
Location
Belfast, UK
Employment Type
Full-time
contributing to a range of backend services. What you'll be doing: Developing new services primarily in Python, while supporting existing applications written in Java and .NET. Working with Oracle SQL PL to maintain and enhance current services. Collaborating on infrastructure and DevOps tasks using AWS, Azure, SQL Server, Postgres ...

Automation Tester (Government)

Hiring Organisation
Stealth iT Consulting
Location
Belfast, UK
Employment Type
Full-time
Automation Tester - Remote - Government - £350.00 Per Day - Remote Key Responsibilities Design, develop, and maintain automated test frameworks using Java, Selenium, and Cucumber. Create and execute automated test scripts for functional, regression, and integration testing. Collaborate closely with developers, BAs, and product teams to understand requirements and ensure test coverage. Participate ...

Principal Software Engineer

Hiring Organisation
TopTek Talent
Location
Belfast, UK
Employment Type
Full-time
record of continuous experience in a Senior Staff, Principal or Architect capacity. Back-End Mastery: Extensive professional background working with the JVM ecosystem (specifically Java or Kotlin). Modern Web & Orchestration: Ideally you will have proficiency in JavaScript frameworks and experience with workflow engines. Cloud-Native Data: Solid experience architecting ...

Engineering Lead

Hiring Organisation
Anson McCade
Location
Belfast, Northern Ireland, United Kingdom
Looking For 8-10 years’ engineering experience; 2+ years in a leadership role Strong AWS, DevOps, and cloud-native experience Proficient in Java and Python Experience with agile delivery and SaaS products Understanding of AI, MLOps, and automation Strong communication and stakeholder skills Comfortable supporting US-based customers Nice ...

Engineering Team Lead

Hiring Organisation
Anson Mccade
Location
Belfast, County Antrim, Northern Ireland, United Kingdom
Employment Type
Permanent, Work From Home
Looking For 8-10 years' engineering experience; 2+ years in a leadership role Strong AWS, DevOps, and cloud-native experience Proficient in Java and Python Experience with agile delivery and SaaS products Understanding of AI, MLOps, and automation Strong communication and stakeholder skills Comfortable supporting US-based customers Nice ...

Technical Lead - Hybrid

Hiring Organisation
Aspire Personnel Ltd
Location
Belfast, County Antrim, Northern Ireland, United Kingdom
Employment Type
Full-Time
Salary
£70,000 - £105,000 per annum
brief in short: Tech Lead/Engineering Lead experience – leading pods of around 3–6 engineers Strong, recent hands-on coding in .NET, Java, or Python (not just oversight) Deep experience in cloud architecture and infrastructure , (AWS or Azure, Terraform, Kubernetes, CI/CD) Proven ability to re-architect ...

Software Engineer II - Frontend Focus | 70-80k £ yearly + bonuses

Hiring Organisation
itMatch
Location
Belfast, UK
Employment Type
Full-time
back again. Most of our engineers release code to production every few days and we have a daily release cycle. Our web stack includes: Java, React, TypeScript, GraphQL, Kubernetes, SQL and NoSQL databases, and runs on AWS. You don't need to have experience with everything listed ...

Senior Customer Success Engineer

Hiring Organisation
Veracode
Location
Belfast, UK
Employment Type
Full-time
DevOps, GitHub, Jenkins, etc.) Experience writing scripts with Python, Postman, etc. to automate tasks via security tool APIs (REST & GraphQL) Familiarity with how .NET, Java, JavaScript programs are compiled and packaged. Hands-on experience with application security solutions (Veracode, Synopsys, Checkmarx, Snyk, etc.) and cloud security solutions (Wiz, Palo Alto ...

Applications Engineer

Hiring Organisation
Reed
Location
Belfast, County Antrim, Northern Ireland, United Kingdom
Employment Type
Full-Time
Salary
£38,000 - £42,000 per annum, Inc benefits
Computer Science, Software Engineering, or a related field Proven experience in software development and application engineering Proficiency in programming languages such as Appscript, Java, Python, and JavaScript Strong analytical and problem-solving skills Ability to work autonomously with minimal supervision and collaborate effectively within a team Excellent communication and interpersonal ...

Software Engineering Team Lead

Hiring Organisation
Anson Mccade
Location
Belfast, County Antrim, Northern Ireland, United Kingdom
Employment Type
Permanent
Salary
£90,000
including time as an Engineering Team Lead or senior technical lead Strong background in AWS, DevOps, cloud infrastructure and modern software architecture Proficiency in Java and Python Experience leading teams within SaaS, scale-up or high-growth environments Solid understanding of agile delivery and stakeholder management Exposure to AI, automation ...

Software Architect (Remote in UK)

Hiring Organisation
Orange Logic
Location
Belfast, UK
Employment Type
Full-time
years' practical experience on a web-based application Proficient with English (both verbal and written) Proficient with any back-end programming languages (i.e. C#, Java, Python, C++, etc.) Outstanding knowledge of software and application design and architecture Highly analytical mindset, with an ability to see both big picture ...

Palantir Consultant

Hiring Organisation
Staffworx
Location
Belfast, UK
Employment Type
Full-time
OSDK/APIs Actions and AIP/agentic features Proficiency in at least one general-purpose programming language commonly used with Foundry (e.g. Python, Java or similar) for data transformations, services and integrations. Solid understanding of core data engineering concepts: batch/stream processing basics, data modelling, data quality ...

Palantir Architect (Lead FDE)

Hiring Organisation
Staffworx
Location
Belfast, UK
Employment Type
Full-time
Ontology, Workshop, Code Repositories, OSDK, Actions, AIP/agentic features. Proficiency in at least one general-purpose programming language commonly used with Foundry (Python, Java or similar) for transformations, services, and integrations. Solid background in data engineering concepts: batch/stream processing, data modelling, data quality, and governance. Experience integrating ...

Full-Stack Java Engineer (Mid-to-Senior) - Remote First | Full-Time or 4-Day Equivalent

Hiring Organisation
PhixFlow
Location
Belfast, UK
Employment Type
Full-time
balance innovation with performance, security, and usability. Core Technical Skills Requested ● Proven experience working effectively within large, enterprise-scale codebases. ● Solid proficiency in Java (deep server-side development and platform architecture familiarity). ● Strong experience with JavaScript, TypeScript and React (front-end development, with an interest in UX/… PhixFlow platform. Technology Keywords & Interests Experience with, or a strong interest in, the following or similar technologies and concepts is highly valuable: ● Backend: Java, Spring, Hibernate, multi-threading/concurrency, Quarkus/Micronaut. ● Frontend: JavaScript, TypeScript, React, D3.js, SVG, CSS. ● Database: SQL (SQL Server, MySQL, Oracle), Data Modelling. ● Infrastructure: Cloud ...

Generative AI Engineer

Hiring Organisation
Avensys Consulting UK
Location
Belfast, UK
Employment Type
Full-time
Retrieval-Augmented Generation), and context-aware pipelines to ensure accuracy and relevance. Integrate AI models with enterprise systems, APIs, and data stores using Python, Java, or Node.js backends. Collaborate with architects to define scalable and secure AI service architectures. Experience in the following Implementing AI/ML pipelines for model ...

Dynamics 365 CE Technical Consultant

Hiring Organisation
Adapt 365
Location
Belfast, UK
Employment Type
Full-time
that's not just functional — but exceptional. What you'll bring: Dynamics 365 accreditations and deep CE knowledge. Strong coding skills (C#, ASP.Net, Python, Java, JSON). Experience with enterprise CRM systems and complex project delivery. Excellent customer engagement and stakeholder management skills. A passion for quality, collaboration, and continuous ...

Senior Java Software Engineer

Hiring Organisation
Orbis Group
Location
Belfast, UK
Employment Type
Full-time
Senior Java Engineer – Actuarial Data Squad – Outside IR35 - Contract We're looking for a Senior Java Engineer to join a high-profile project focused on backend systems that automate complex financial and actuarial processes. This is a hands-on role delivering backend solutions under tight deadlines in a highly regulated … environment. Key Responsibilities: Develop backend systems and APIs in Java, using the Spring ecosystem Work with AWS and infrastructure-as-code tools such as Terraform or Helm Design and implement scalable, production-ready systems for complex financial processes Collaborate with business and technical stakeholders to align solutions with operational needs ...

Principal Software Engineer (DevOps)

Hiring Organisation
Oracle
Location
Belfast, UK
Employment Type
Full-time
networking data path and kernel-level networking (e.g., XDP, eBPF, dpdk, iptables, nftables) for traffic processing, filtering, and observability. Proficiency in one or more: Java/Python/C Rust/Go (strong preference for Java for control-plane/services). Deep systems design expertise: concurrency, memory management, performance ...

Senior Software Engineer

Hiring Organisation
Oracle
Location
Belfast, UK
Employment Type
Full-time
qualifications 6+ years building production backend systems (at least 3 years in high-scale or low-latency environments). Proficiency in one or more: Java/Python/C Rust/Go Strong preference for Java for control-plane/services. Strong systems design skills: concurrency, memory management, performance tuning ...

Senior Principal Offensive Security Engineer

Hiring Organisation
Oracle
Location
Belfast, UK
Employment Type
Full-time
code audits to reveal subtle security vulnerabilities Writing new tools such as fuzzers in languages such as C/C++, Python, Ruby, Go or Java, Tearing apart an undocumented file format or network protocol Coming up with novel techniques to solve unique and interesting security problems Review new services, including … skills Intermediate knowledge of Linux OS Internals Advanced knowledge of one programming language and ability to read two high level programming language such as Java Preferred Qualifications Undergraduate or Graduate degree in Electrical Engineering, Computer Science, or another related field or equivalent work experience. Hands-on experience developing services ...

Backend Engineer, Contract | Python (Django), Java and Rust | Fully Remote / EU-Based | Rate £550-650pd, Outside IR35 | 12-months Contract Length

Hiring Organisation
Owen Thomas | Pending B CorpTM
Location
Belfast, UK
Employment Type
Full-time
Backend Engineer, Contract | Python (Django), Java and Rust | Fully Remote/EU-Based | Rate £550-650pd, Outside IR35 | 12-months Contract Length Opportunity: We're supporting a fast-moving client at huge global scale, that is in need of a Senior Backend Contractor with deep experience across Python, Django … some Java and Rust. This is a high-impact freelance role within a tech-driven established team - building scalable systems in a modern backend environment and implementing AI work. What You'll Be Doing as a Backend Engineer, Contract | Python (Django), Java and Rust | Fully Remote/EU-Based | Rate ...

Senior Manager, DDOS Engineering and Development

Hiring Organisation
Oracle
Location
Belfast, UK
Employment Type
Full-time
DevOps at scale: CI/CD, automated testing, rollout/rollback, config management, and IaC (e.g., Terraform). Proficiency with one or more: Java, Go, Python, C++, or Rust; strong preference for Java for control-plane/services. Demonstrated leadership in incident management, resilience engineering, observability, and operational maturity. Excellent ...

Quantitative Analyst - Sportsbook Research & Development

Hiring Organisation
Hard Rock Digital
Location
Belfast, UK
Employment Type
Full-time
will: Collaborate with our Data Science and Product teams, translating complex Sportsbook subject matter to help understand business requirements; Use programming languages such as Java or Python to create, enhance and refine our technical tools and solutions; Document and maintain your work to a high standard, for both technical … motivated individuals with a mix of sports betting knowledge and technical acumen. Coding capability in at least one (preferably more) of SQL, Python or Java is extremely desirable for the role, as is knowledge of the US sports betting market. You will be analytical, mathematically minded and detail orientated, with ...

Software Engineer

Hiring Organisation
LanceSoft UK
Location
Belfast, UK
Employment Type
Full-time
Job Description: As an OS Frameworks Engineer, you will contribute to building innovative hardware and software that profoundly redefine how people work, play, and connect. What we create today has the potential to become the ...