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Software Engineer Northern Ireland | Full-time | Permanent We're partnering with a high-growth digital asset firm operating at the intersection of institutional finance and crypto markets - a company that has weathered multiple market cycles, built credibility in a volatile industry, and continues to establish long-term partnerships across trading, risk, and treasury. This is a business where engineering is core to survival, not an afterthought. They are now looking for a Software Engineer who wants to work on meaningful, production-grade systems in a fast-moving but disciplined engineering culture. The Opportunity This role sits at the heart of a technology function responsible for building enterprise-grade systems that directly support trading desks, operational teams, and risk functions. The software you build will underpin real financial decision-making, where reliability, precision, and robustness are essential. You'll contribute to system architecture, data flow design, and the hands-on implementation of tools, reporting pipelines, and operational services. This is not a feature-factory environment - engineers here are encouraged to challenge assumptions, rethink approaches, and drive continuous improvement across the stack. You'll work closely with front-office stakeholders and senior leaders, gaining real visibility into how technology influences strategy in a sophisticated financial landscape. What You'll Be Doing Designing and building enterprise-level software systems used across trading, operations, and risk Developing internal tools, reporting capabilities, and data feeds that improve transparency and decision-making Owning software quality, efficiency, performance, and operational resilience Contributing to cross-company engineering initiatives as the organisation scales Partnering with senior stakeholders to ensure systems remain reliable, well-maintained, and fit for purpose What We're Looking For 2+ years of commercial software engineering experience (Java preferred; C++ also considered) Solid grounding in computer science or related technical discipline Bachelor's or postgraduate degree from a well-regarded university Experience building systems where reliability and quality are critical AWS experience or certification is a strong advantage A thoughtful engineering approach focused on clarity, quality, and maintainability The Environment You'll join a close-knit, high-trust engineering team where good ideas are heard, impact is visible, and substance matters more than ceremony. Engineers are empowered to shape how systems evolve, not simply execute decisions made elsewhere. The company is committed to long-term career development, offering opportunities to deepen technical skills, broaden domain knowledge, and influence architectural decisions as the organisation grows. Flexible working is supported, and the culture is collaborative, informal, and focused on high-quality outcomes. For more information or to discuss this role confidentially, feel free to reach out to Ryan Quinn directly on LinkedIn. These positions tend to move quickly - early interest is encouraged even if you're exploring multiple opportunities. Skills: Java Microservices AWS Benefits: Bonus

Staff Software Engineer (Java) The Opportunity Our client is a US-based software provider serving major Academic and Sporting organisations - institutions where technology underpins daily operations at massive scale. Their systems demand absolute correctness, long-term reliability, and architectures that evolve gracefully over time. This is a remote-first environment with a Belfast engineering hub available for meetups, collaboration, and team events. They are now seeking a Staff Software Engineer to act as a senior technical leader across a core product area. This is a high-impact role with a deep backend focus, centred around Java-based distributed systems. You will influence architecture across multiple teams, remove delivery blockers, guide large-scale technical decisions, and embed enduring engineering standards. Success in this role is measured not by volume of output, but by long-lasting architectural clarity, improved system health, sustainable engineering practices, and stronger cross-team alignment. You'll report to an Engineering Manager and work closely with senior stakeholders across the organisation. What You Will Do Operate as a Staff-level technical leader across a complex, multi-service product ecosystem Shape backend architecture and system-level designs across Java and Spring-based services Lead high-impact engineering initiatives focused on scalability, performance, and operational resilience Act as a trusted authority for complex technical decisions and domain-wide challenges Partner with Product to translate workflows and requirements into robust distributed systems Collaborate with Platform, DevOps, and Reliability functions to strengthen observability and operational maturity Reduce legacy complexity by addressing architectural gaps, bottlenecks, and technical debt Raise engineering standards through pairing, design reviews, technical documentation, and knowledge sharing What You Will Bring Must-haves 10+ years of professional software engineering experience Deep expertise in Java and the Spring ecosystem Strong backend engineering background with solid experience in relational databases (ideally PostgreSQL) Experience navigating complex or legacy domains where architecture is continuously evolving Demonstrated ability to influence technical direction across teams or product areas Ownership mindset across design, implementation, and operational support Comfortable collaborating across Product, Platform, SRE, Support, and Engineering leadership Excellent communication skills, able to build trust and alignment Pragmatic decision-maker balancing speed, quality, and long-term system health Nice-to-haves Experience with Angular or modern JavaScript frameworks Background working with data-heavy systems, analytics, or performance-critical workloads Familiarity with AWS, DevOps tooling, or SRE practices Exposure to regulated, compliance-driven, or operationally complex products Who Thrives in This Role You're a Staff Engineer who leads through influence, not authority - someone who can dive into complex systems, ask the hard questions, and emerge with a clearer, healthier architecture. You enjoy operating in ambiguity, especially in mature or post-acquisition environments where systems require thoughtful, incremental evolution. You care deeply about sustainability, reliability, and building platforms that will still make sense years from now. You balance humility with high standards, think beyond immediate delivery, and take pride in designing systems that are scalable, maintainable, and genuinely impactful for end users. Why Work With OCHO? OCHO represents the largest portfolio of technology roles of any tech recruitment firm in Northern Ireland. If this particular opportunity isn't quite the right fit, I'm always happy to grab a coffee and talk through the Northern Ireland tech landscape and opportunities in 2026. For more information or a confidential discussion, feel free to reach out to Ryan Quinn directly on LinkedIn. Skills: Java Microservices AWS Event-driven Benefits: Work From Home Bonus

Are you a Principal Java Engineer who enjoys solving complex technical challenges and shaping the architecture of large-scale systems? Do you thrive in environments where you can influence technical direction, mentor talented engineers, and build robust cloud-native applications? My client is seeking a Principal Java Engineer to join their growing engineering team. This is an opportunity to play a key role in designing and delivering high-performance, scalable systems while working with modern cloud technologies. The Role As a Principal Engineer, you will act as a technical leader within the engineering organisation. You will be responsible for designing and delivering scalable backend systems, guiding architectural decisions, and supporting engineering teams to deliver high-quality software. Working closely with product, architecture, and engineering teams, you will help shape the technical roadmap while ensuring solutions are secure, scalable, and maintainable. Responsibilities Lead the design and development of scalable, high-performance Java applications Provide technical leadership and mentorship across engineering teams Define and influence system architecture and engineering best practices Design and build cloud-native solutions using AWS Collaborate with cross-functional teams to translate business requirements into technical solutions Drive improvements in performance, scalability, and reliability across systems Contribute to strategic technology decisions and long-term platform evolution Requirements Extensive experience developing applications using Java in enterprise environments Strong experience designing distributed systems and scalable backend architectures Proven experience building and deploying solutions on AWS Strong understanding of microservices architecture and modern software design principles Experience working with RESTful APIs and event-driven systems Ability to mentor and guide engineers across multiple teams Excellent problem-solving and communication skills Location Candidates must be based in Northern Ireland and have the right to work in the UK. This role offers the opportunity to work on impactful systems, collaborate with highly skilled engineers, and influence technical direction at a senior level. If you have any further questions on the role, please feel free to reach out to Brendan McCrory directly. Benefits: Work From Home

Backend Software Engineers (Golang / Java) Hybrid Roles | Cloud Security | Northern Ireland We're proud to be working exclusively with a high-growth cloud security company that established its Northern Ireland engineering hub less than two years ago. Since launching locally, the team has grown to 30 engineers and is now entering a major scale-up phase following a $250 million investment secured in January. As part of ambitious growth plans through 2026 and beyond, we're hiring multiple Backend Software Engineers (Golang / Java) to join their expanding backend engineering group. The Opportunity In this role, you'll work on technically complex, real-world problems every day building new, innovative capabilities while continuously improving and scaling existing systems. You'll operate in a modern, cloud-native environment and have genuine ownership over what you deliver, from early architectural design through to deployment, monitoring, and long-term optimisation in production. The platform integrates deeply with AWS, GCP, and Azure, and makes heavy use of technologies such as: Golang Java Kubernetes Docker eBPF Distributed systems at scale This is not a "ticket factory" role it's an engineering-first environment where you'll solve meaningful problems that directly impact global customers. The Role As a Backend Software Engineer, you'll: Own services end to end: design, build, deploy, monitor, and iterate Contribute to technical and architectural decisions Perform reliability and performance analysis on Golang / Java-based systems Conduct high-quality design and code reviews Work closely with Product, Frontend, and DevOps teams to deliver best-in-class features Contribute to capacity planning and SLO definition Continuously improve scalability, performance, and reliability You'll be building and enhancing data-intensive systems that operate in highly dynamic production environments. About the Company This is a modern cloud security startup operating at runtime to protect customer infrastructure using deep system visibility and contextual data. Unlike traditional tools, the platform leverages runtime insights and eBPF-powered sensors to identify and prioritise real risks enabling customers to detect threats, reduce risk exposure, and respond automatically at scale. Despite being under two years old locally, the business is already: Well-funded Commercially proven Scaling globally Backed by serious investment It's a rare opportunity to join early - but with strong financial backing and clear product-market fit. Tech Stack You'll work with a genuinely modern stack, including: Cloud: AWS, GCP, Azure Core: Golang, Java Platform: Kubernetes, Docker, eBPF Data & Messaging: Neo4j, Elasticsearch, Redis, TimescaleDB, RabbitMQ Architecture: Microservices, distributed systems What We're Looking For Degree in Computer Science, Software Engineering, or similar 1-3+ years commercial backend engineering experience Strong experience with Golang and/or Java (other languages welcome) Hands-on experience with cloud platforms (AWS, GCP, Azure) Experience building data-intensive or distributed systems Experience with CI/CD pipelines Familiarity with microservices architectures Strong analytical thinking and ownership mindset Nice to have: Experience writing or working with eBPF Strong understanding of Linux internals, networking, or filesystems What It's Like to Work Here This is a high-trust, collaborative engineering culture. The Site Lead describes the team "like a band - everyone plays their part." You'll work alongside some of the strongest engineers in the local market, in an environment where: Engineers own problems, not just tasks Technical excellence is valued People genuinely enjoy what they do There's ambition - but also balance Salary & Package Base salary up to £150k,Equity,Private healthcare,Flexible / hybrid working High-autonomy engineering culture This is a chance to make a real impact during a period of record growth, while working on meaningful, technically challenging problems in one of the most exciting areas of modern software engineering. Interested? Apply via the link or contact Phil Gamble directly for an informal, confidential chat via LinkedIn or WhatsApp. Phil has over 21 years' experience delivering senior and specialist tech hires across the UK, Ireland, and the US, and is happy to advise on whether this role - or the wider market - is right for you. Skills: JAVA golang AWS Kubernetes Azure

A leading tech firm in Northern Ireland is looking for a DevOps Engineer to enhance their cloud platform.The successful candidate will create middleware, promote collaboration, and participate in architectural discussions.This role blends remote and in-office work, focusing on service resilience and

The System Architect defines and delivers the shared technical and architectural vision for the Agile Release Train (ART). Partnering with Product Managers and the Release Train Engineer (RTE), the System Architect guides feature teams, builds the architectural runway, and aligns solutions with Ente

Senior Fire Engineer Location: Belfast Type: Permanent, Full-Time Visa Sponsorship: Skilled Worker sponsorship available (subject to eligibility) A leading fire engineering consultancy is seeking a Senior Fire Engineer to join its expanding Belfast office. This is a strategic hire offering genuine technical influence, project ownership and a defined pathway toward Principal / Associate level. This role is suited to an experienced fire engineering professional with a minimum of 10 years’ consultancy experience, operating at Senior or Principal level on complex, multi-sector projects. The Role You will lead the delivery of performance-based fire engineering solutions across commercial, residential, healthcare, education and mixed-use developments. You will manage projects from concept through to completion, taking technical ownership and acting as a key point of contact for clients and design teams. Key responsibilities include: Development and review of fire strategies across multiple sectors Leading performance-based design solutions Advanced fire modelling (CFD, evacuation modelling, smoke control analysis) Liaising directly with clients, architects, contractors and approving authorities Leading and attending technical design meetings Reviewing architectural drawings and advising on compliance Producing detailed technical reports Mentoring and supporting junior engineers Requirements Minimum 10 years’ experience within a fire engineering consultancy Degree qualified in Fire Engineering or related discipline Strong knowledge of UK and/or Irish Building Regulations Extensive experience with modelling software (e.g. FDS, Pathfinder or similar) Proven experience leading projects and managing client relationships Strong commercial awareness and ability to manage deadlines Chartered status (CEng) or working towards chartership is highly desirable. Visa Sponsorship Skilled Worker visa sponsorship is available for suitably qualified candidates, subject to meeting UK Home Office eligibility requirements. This is an opportunity to join a technically respected consultancy with a strong reputation and growing footprint in Belfast. The role offers high-level project exposure, leadership responsibility and long-term progression within a stable, design-led environment