senior systems developer jobs in Belfast

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Senior Test Systems Engineer

Thales UK Limited
Belfast

Manage the entire HR recruitment process, handle expatriate management, and support HR administrative functions and system enhancements. Ensure compliance with labor laws and facilitate staff Coordinator will manage projects, conduct data analysis on client benefits, prepare reports, and optimize processes within the team. Top Skills: ExcelPower BILocation: Belfast, United Kingdom Thales people...

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11 hours ago

Senior Control Systems Engineer

Vickerstock
Belfast

You will work with multidisciplinary teams - including mechanical, electrical, and production - to ensure control systems are robust, safe, and meet all regulatory and operational requirements.

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11 hours ago

Senior System Engineer (AI/ML)

Computappoint
Belfast

Senior System Engineer (AI/ML) | Permanent position - Location: Central London - Onsite: 5 days a week (South Kensington / Waterloo) - Salary: Up to £82,500 + Excellent Benefits - Available position: 2 positions Our client, an IT consulting and services provider, is seeking an experienced AI/ML Platform Engineer to support a transformative project within the UK education sector. You'll play a...

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7 hours ago

Senior Electronic Systems Engineer

Eclectic Recruitment Ltd
Belfast

A fantastic opportunity has arisen for a Senior Electronics Systems Engineer – Design Authority to join a specialist engineering team responsible for a safety-critical electronics subsystem supporting complex weapon system programmes. This role performs the duties of the Design Authority for a critical launch-related electronics system and reports into senior engineering leadership, holding...

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7 hours ago

Senior Backend Engineer – High-Scale Systems

Prism Digital
Belfast

You will be responsible for the entirety of the back end features of the products.

You will be in charge of building scalable backend services and awesome messaging queues.

You will be responsible for developing a Python-based back end platform that's handling 100,000+s of interactions daily.

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7 hours ago
Hybrid

Senior System Engineer

Advanced Resource Managers
Belfast

Senior Systems Engineering Consultant Bristol (Hybrid Working) Salary negotiable depending on experience Responsibilities: - Research and concept development of systems solutions. - Development and management of system requirements. - Development of abstract architectures to describe systems. - Design process engineering for hardware, software, and mixed technology systems. - Systems safety...

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7 hours ago
Hybrid

Senior Systems Engineer – Satellite Communications

Octagon
Belfast

Senior Systems Engineer – Satellite Communications Location: Hereford, Herefordshire (Hybrid – 3 days onsite) We’re partnered with a well-established UK engineering organisation operating at the forefront of satellite communications and RF systems. They are looking to appoint a Senior Systems Engineer to take ownership of complex products used in critical SatCom infrastructure worldwide. This...

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7 hours ago

Senior System Engineer

Astute People
Belfast

Competitive package with bonus, strong pension and flexible/remote options. Why you’ll love this role - High-impact consultancy work with progression - Work-life balance and technical development What you’ll be doing - Research and develop system concepts - Define/manage requirements and safety - Evaluate performance and integrity - Solve complex client problems What we want from you -...

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7 hours ago

Senior Engineer - Developer Experience (DevEx)

Complexio
Belfast

You will shape how our engineers build, test, release, and monitor software, ensuring frictionless workflows while keeping ownership of business logic, test quality, and development practices firmly with the product engineering teams.

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3 hours ago

Senior Business Development Manager – Fleet Mobility Solutions Provider

PIE Recruitment
Belfast

Senior Business Development Manager – Fleet Mobility Solutions Provider £50,000 basic - £55,000 basic + £25,000 OTE Uncapped + EV Company Car If you’re ready to make an impact, this is the role that puts you in the driving seat. A competitive package, a premium company car, and the chance to join a private equity-backed business on a rapid growth trajectory. Expect pace, ambition, and the kind...

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5 hours ago
Hybrid

Senior Economic Development

Red Personnel
Belfast

Senior Economic Development Officer – Sectors & Clusters Location: Hybrid – 1–2 days in the office, with regular community engagement Pay Rate: Circa £30 per hour PAYE / £38 per hour Umbrella Contract: Interim Assignment We’re looking for an experienced and enthusiastic Senior Economic Development Officer to help drive growth and innovation across key sectors in a forward-thinking local...

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7 hours ago
Hybrid

Senior Software Developer with a Backend Focus

Prighter
Belfast

About Prighter Prighter is a fast-growing LegalTech company building productised services and SaaS solutions for compliance with data protection as well as AI & digital governance regulations. With the mission to enable companies around the world to comply with regulatory requirements for their digital business, our services and SaaS solutions guide our global clients through the increasingly...

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3 hours ago

Senior Software Developer | Webigence and Spark Travel

Spark Travel
Belfast

🚀 About Webigence and Spark Travel Webigence has 25 years of experience crafting UX‑first, often highly complex software. Our engineers pair forward‑thinking agile practices with an obsession for intuitive design, shipping products that feel effortless even when the logic underneath is anything but. Alongside a handful of long‑standing third‑party clients, we’re scaling our own SaaS...

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5 hours ago
Hybrid

Applications Development Senior Programmer Analyst - Citi

Citi
Belfast

Job Description 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 Citi, you'll have the opportunity to grow your career, give back to your community and make a real impact. Job Overview About the Department Developer Engineering & Engineering Excellence Tech is a function...

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4 hours ago

Senior Development Manager

Piper Maddox
Belfast

Senior Development Manager - Onshore Wind, Solar, Battery Storage Salary & Package - up to £80,000 DOE + annual bonus, car allowance, healthcare Remote Working Piper Maddox are partnering with a leader the UK renewable energy industry to hire a key addition to their project development function in 2026. This company are an IPP with a demonstrable track record in successful development,...

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7 hours ago
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Senior Frontend Developer (Nextjs)

Homeflow
Belfast

You will be working in a fast-paced environment to develop new website themes and add new features in a complex Next. js-based codebase (including a CMS). This is a great opportunity for the right person to take on a challenging and broad role. Homeflow is operating on a fully remote basis but occasional travel will be required for our company meet ups (bi-annually at most in the UK).

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5 hours ago

Mid-level/Senior Developer

QWARE
Belfast

Department: Support Reports To: Application Software Support Manager Location: Remote Salary: £55k - £60k /yr (depending on experience) Contract Type: Permanent – Full Time Role Summary We're looking for an experienced full-stack .NET developer to join our team in a new and exciting role. This role will initially be supporting an array of clients, helping our support team to continue to...

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2 days ago
Remote

Senior Full-Stack Software Developer (React.js &

Cuva Health
Belfast

We're Cuva Health, a UK healthcare start-up on a mission to make access to treatments simpler, safer, and more convenient. Our digital platform is built with React.js & Nuxt.js, and we're looking for a Full-Stack Developer to help us complete our initial project, deliver new features, optimise performance, and scale our platform as we grow. What you'll do - Develop and extend our React.js &...

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58 minutes ago

Senior Business Development Manager

Astute People
Belfast

Up to £72,000 salary, car allowance, bonus, and a clear path for progression with two of the UK’s leading names in industrial services and hazardous waste management. This senior commercial role is ideal for someone ready to drive strategic growth across key sectors, including Civils, Demolition, and Utilities, while shaping long-term partnerships. Why you’ll love this role: - Competitive...

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7 hours ago
Hybrid

Senior Software Engineer - Java/Kotlin (Developer Enablement) - Vice President - Citi

Citi
Belfast

Job Description 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 Citi, you'll have the opportunity to grow your career, give back to your community and make a real impact. Job Overview We're looking for multiple talented engineers Server Side , to join one of our...

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4 hours ago
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