Lead Ruby Developer jobs in Belfast

Software Developer – Ruby on Rails Office | Hybrid | Remote (within ±2 hours of GMT) | Scaling sports-tech SaaS We're hiring experienced Ruby on Rails developers to work directly with our CTO, shaping the architecture, the culture, and the future of engineering at TeamFeePay. Every week, thousands o

Job Req Id 26953051 Location(s) Belfast, Northern Ireland, United Kingdom Job Type On-Site/Resident Posted May. 06, 2026 Discover your future at Citi Working at Citi is far more than just a job. A career with us means joining a team of more than 230,000 dedicated people from around the globe. At Cit

Areti Group | B Corp™

£85,000 - £85,000 /year

🚀 Tech Lead – Full Stack Developer | Up to £85k + Fully Expensed Travel I’m working on a fantastic opportunity for a hands-on Tech Lead to join a fast-growing, product-led tech environment delivering real impact at scale. This role is ideal for someone who still enjoys being in the code but also wa

Kura

A technology company in Belfast is seeking a Lead Mobile Developer to shape their mobile platform's direction. In this role, you'll lead the migration from Xamarin to Flutter and mentor a growing team. The ideal candidate has deep experience in mobile app development for both Android and iOS and a p

Jobs via eFinancialCareers

A major global financial services company is seeking an experienced Senior Python Developer. The role involves developing enterprise-scale applications using Python and FastAPI while collaborating with both onshore and offshore teams. Candidates should have over 5 years of hands-on experience, parti

Couch Heroes

Lead Gameplay Developer Location: Remote-first Type: Full-time Start: ASAP About Couch Heroes At Couch Heroes, we’re exploring new ground for the MMO genre. In a world where fantasy and ancient technology intertwine, players explore shattered realms, grapple across verticality, solve puzzles, and pu

Couch Heroes

Lead Full-Stack Developer Location: Remote-first Type: Full-time Start: ASAP About Couch Heroes At Couch Heroes, we’re exploring new ground for the MMO genre. In a world where fantasy and ancient technology intertwine, players explore shattered realms, grapple across verticality, solve puzzles, and

TeamFeePay

Software Developer – Ruby on Rails Office | Hybrid | Remote (within ±2 hours of GMT) | Scaling sports-tech SaaS We're hiring experienced Ruby on Rails developers to work directly with our CTO, shaping the architecture, the culture, and the future of engineering at TeamFeePay. Every week, thousands o

Trainee AI Programmer – No Experience Needed Future-proof your career in Artificial Intelligence – starting today. Looking for a career change? Currently employed but want something better? Or maybe you're between jobs and ready for a fresh start? ITOL Recruit's AI Traineeship is designed to get you

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Responsibilities Build and maintain integrated productivity metrics dashboards for AI tools Monitor AI tool usage and adoption across the organisation Create and deliver automated DPO (Developer Productivity Office) data feeds Analyse productivity trends and surface insights to support business deci

Anson McCade

Lead Software Engineer - Digital & Technology ConsultingA leading global innovation and transformation consultancy is looking for an experienced Lead Software Engineer to join its growing technology practice. This role suits someone who enjoys solving complex problems, leading engineering teams,

Job Description Junior AI Developer Programme – Job Support Included Complete online training designed to help you enter junior AI and developer roles. Study part-time, build coding and AI fundamentals, and receive structured job support to help you secure your first role. The Programme This 1

MCS Group

Company Overview MCS Group are delighted to be partnering with a well-established, profitable software company based in Northern Ireland is building cloud platforms used across regulated industries including animal health. Their products replace legacy systems with modern, scalable solutions and are

MCS Group

Company Overview MCS Group are delighted to be partnering with a well-established, profitable software company based in Northern Ireland is building cloud platforms used across regulated industries including animal health. Their products replace legacy systems with modern, scalable solutions and are

Citibank (Switzerland) AG

For additional information, please review .The Applications Development Technology Lead Analyst is a senior level position responsible for establishing and implementing new or revised application systems and programs in coordination with the Technology team. The overall objective of this role is to

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Company DescriptionVersion 1 has celebrated over 28 years in Technology Services and continues to be trusted by global brands to deliver solutions that drive customer success. Our expertise enables our customers to navigate the rapidly changing Digital-First world we live in. We foster strong partne

Datatech Analytics

Lead Developer (Full Stack, AI) UK, Remote-first | £65k We’re working with a growing, creative technology business building AI-led products that are already being used in real-world environments. This is an opportunity to join a small, collaborative team where your voice is heard, your work is visib

Citi

We are seeking a talented and passionate Lead Frontend Developer with deep expertise in ReactJS to spearhead the development of our cutting‐edge user interfaces. The ideal candidate will be a technical leader, responsible for guiding the frontend team, defining architectural patterns, and ensuring t

Data Intellect

An established industry player is seeking a skilled technical leader to drive innovative solutions in the financial sector. This role involves providing guidance on client projects, leading technical teams, and defining architectures that meet client needs. The ideal candidate will have extensive ex

Citibank (Switzerland) AG

A leading global financial institution in Belfast is seeking an Applications Development Technology Lead Analyst to lead application systems analysis and programming activities. This senior role requires mentoring junior staff, managing technical projects, and leading a development team. Candidates