19 of 19 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 ...

Software Architect

Hiring Organisation
Ocho
Location
Lisburn, Co. Antrim, UK
Employment Type
Full-time
automation Excellent mentoring, coaching and stakeholder communication skills Comfortable leading large engineering groups Technical Stack .NET/C#, Web Forms, .NET Core, REST APIs Java and Python for proofs of concept Azure or AWS, Kubernetes, Docker SQL Server, Postgres, performance engineering and caching Event-driven systems, messaging and distributed architectures ...

Software Architect

Hiring Organisation
Ocho
Location
Belfast, Northern Ireland, United Kingdom
automation Excellent mentoring, coaching and stakeholder communication skills Comfortable leading large engineering groups Technical Stack .NET/C#, Web Forms, .NET Core, REST APIs Java and Python for proofs of concept Azure or AWS, Kubernetes, Docker SQL Server, Postgres, performance engineering and caching Event-driven systems, messaging and distributed architectures ...

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 ...

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 ...

Integration Specialist

Hiring Organisation
Harrington Starr
Location
Belfast, UK
Employment Type
Full-time
degree (preferably in Computer Science, Engineering, or a technical field) Nice to Have Experience in FinTech, trading, or capital markets Familiarity with C# or Java Experience with PowerShell or basic server administration Background in a startup or scale-up environment Previous client-facing technical experience Why Join ...

Lead Decision Intelligence Consultant (Palantir)

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 ...

Senior Fullstack Engineer (Remote First)

Hiring Organisation
MCS Group | Your Specialist Recruitment Consultancy
Location
Lisburn, Co. Antrim, UK
Employment Type
Full-time
automating delivery to production Using AI-assisted tools to boost productivity and innovation Participating in code reviews and mentoring other engineers Tech environment: Java, Spring Boot, React, Python, Kubernetes, Terraform, Jenkins, AWS, SQL About you: experience in software development (SaaS or cloud environments) Strong skills in Java and modern JavaScript ...

Senior Fullstack Engineer (Remote First)

Hiring Organisation
MCS Group | Your Specialist Recruitment Consultancy
Location
Belfast, Northern Ireland, United Kingdom
automating delivery to production Using AI-assisted tools to boost productivity and innovation Participating in code reviews and mentoring other engineers Tech environment: Java, Spring Boot, React, Python, Kubernetes, Terraform, Jenkins, AWS, SQL About you: experience in software development (SaaS or cloud environments) Strong skills in Java and modern JavaScript ...

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 ...

Technical Leader

Location
Belfast, County Antrim, United Kingdom
Technical Lead - Belfast Belfast Hybrid Up to £95,000 Join a dynamic digital consultancy as a Technical Lead in Belfast . Bring your JavaScript, Java, C#, or .NET expertise to projects that combine hands-on coding with client-facing consulting . Perks of the role: Lead and mentor high-perfor... ...

Technical Leader

Hiring Organisation
Anson Mccade
Location
Belfast, County Antrim, Northern Ireland, United Kingdom
Employment Type
Permanent, Work From Home
Technical Lead - Belfast Belfast | Hybrid Up to £95,000 Join a dynamic digital consultancy as a Technical Lead in Belfast . Bring your JavaScript, Java, C#, or .NET expertise to projects that combine hands-on coding with client-facing consulting . Perks of the role: Lead and mentor high-performing ...

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 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 ...

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 ...