android developer kotlin jobs in Northern Ireland

A cybersecurity scale-up is seeking an experienced Senior Android Engineer to design and build a production Android application. This is a hands-on senior role focused on architecture and engineering standards. Responsibilities include developing Android features using Kotlin and modern APIs, optimizing performance, and collaborating with cross-functional teams. The position offers a competitive...

You must speak, write and be able to understand fluent English. - Deep knowledge and regular usage of Firebase suite, especially Firestore. - Strong proficiency in TypeScript and modern JavaScript (ES6+).

You must enjoy constantly learning and researching to improve your level of expertise.

We're looking for multiple talented engineers Server Side, to join one of our high-impact teams inside Citi's CTO organisation. You'll sit within Developer Enablement, a group focused on innovation, developer platforms and internal tools used across the bank, where we experiment and ship fast, like a startup inside a global bank. Our mission is to save our engineers tens of minutes per day,...

Senior Software Engineer - Java/Kotlin (Developer Enablement) - Vice President - Citi Discover your future at Citi: We are a global bank with more than 230,000 employees and are looking for talented engineers to join our Developer Enablement team within the CTO organization. The goal is to create tools and platforms that save tens of minutes for engineers each day, delivering significant value to...

A global financial institution is seeking talented Server-Side Engineers in Belfast. You'll engage in high-impact projects within the CTO organization, focusing on developer platforms and internal tools. This role involves building innovative solutions using Kotlin or Java and databases like PostgreSQL and MongoDB, while working in an agile team that values collaboration and engineering...

We're the #1 symptom tracker on iOS and Android and looking for a senior react native developer to help continue our growth 🚀 📌 The basics - React Native developer (5y+ experience) - £70,000 base salary - Make a genuine difference to the lives of people with health conditions - Work with a lovely bunch of people - Fully remote, full-time position - Based in the UK or EU If this sounds like...

You will work closely with Senior, Staff and Principal Engineers across Belfast and the wider global engineering organisation, contributing to large scale distributed systems while acting as a technical authority within the team. This role offers a strong mix of hands-on development, architectural decision making and mentorship.

Senior Rust Engineer UK, fully remote (Must be based in the UK now) Sadly no sponsorship possible Up to £95K Skills: Rust | Backend Systems | gRPC | Postgres | Integrations I’m partnering with an early-stage, product-led startupbuilding a platform for transport operations - frankly, one of the most complex, real-time environments in the world. The team are already profit making with runway...

The world of work is changing forever - not just where it happens, but how and why. People want flexibility, meaning, and connection. At Kadence, we're building the operating system for hybrid work, helping organisations coordinate people, places, and projects so everyone can do their best work, wherever they are. Our mission is to help every organisation unlock the full potential of its people...

Back-End Engineer (Go) Application Deadline: 27 February 2026 Department: Technology Employment Type: Full Time Location: Belfast Reporting To: Daniel Kelly Description Imagine catching criminals before they strike—that's exactly what Napier's AI-powered platform does By analysing transactions and customers in real time, Napier AI's technology empowers financial institutions to spot...

About KX KX software powers the time-aware data-driven decisions that enable fast-moving companies to outpace competitors, realizing the full potential of their AI investments. The KX platform delivers transformational value by addressing data challenges related to completeness, timeliness and efficiency, ensuring companies understand change over time and can achieve faster, more accurate...

You will play a key role in developing high-performance, secure software that powers card and mobile payment solutions. Key Responsibilities Design and build applications supporting traditional card payments and modern mobile wallets (e.g., Chip & PIN, Apple Pay, Google/Android Pay, Samsung Pay).

You will be responsible for building and maintaining RESTful APIs and developing AI-enabled tooling. The ideal candidate has strong server-side engineering skills along with experience in microservices and CI/CD practices. Benefits include generous leave policies and performance bonuses, providing a robust work environment.

Description Napier AI's AI‐powered platform detects financial crime in real time, analysing transactions and customer data to spot suspicious activity such as money laundering. The Role: Back‐End Engineer (Scala) The Scala Engineer is a key member of our core Engineering team, building a powerful, flexible financial crime detection engine used by top Financial Institutions...

About the Company MCS Group are delighted to be working EXCLUSIVELY with a fast-growing cybersecurity scale-up specialising in modern mobile security and device protection. Their platform helps organisations keep employee devices safe by identifying vulnerabilities, risky settings, outdated software, and potential indicators of compromise - then guiding users through simple steps to fix...

A leading financial services company in Belfast is seeking talented engineers to join their Developer Enablement team. In this role, you will work on greenfield projects aimed at improving SDLC processes, leveraging your server-side engineering skills in Kotlin or Java. You'll collaborate with diverse teams to deliver robust backend solutions that enhance the daily experience of engineers across...

You will work closely with Senior, Staff and Principal Engineers across Belfast and the wider global engineering organisation, contributing to large scale distributed systems while acting as a technical authority within the team. This role offers a strong mix of hands-on development, architectural decision making and mentorship.

Back-End Engineer (Java) Application Deadline: 30 January 2026 Department: Technology Employment Type: Full Time Location: Belfast Reporting To: Stephen McKeown Imagine catching criminals before they strike—that's exactly what Napier's AI-powered platform does! By analysing transactions and customers in real time, Napier AI's technology empowers financial institutions to spot suspicious...

You will work closely with Senior, Staff and Principal Engineers across Belfast and the wider global engineering organisation, contributing to large scale distributed systems while acting as a technical authority within the team. This role offers a strong mix of hands-on development, architectural decision making and mentorship.

You will work closely with Senior, Staff and Principal Engineers across Belfast and the wider global engineering organisation, contributing to large scale distributed systems while acting as a technical authority within the team. This role offers a strong mix of hands-on development, architectural decision making and mentorship.