android developer kotlin jobs in Cardiff

Excellent opportunity to join a growing and award winning SaaS organisation headquartered in Belfast. My client have won various awards for innovation and support. Due to demand they have a new opportunity for a talented Android developer to join the team situated all over Ireland North and South. On offer - Salary £60k - £70k - D.O.E - Remote working options - Work from any where in Ireland -...

Overview AUDITSU is developing a proprietary automation system to explore and analyse mobile applications at scale. We’re looking for an engineer who understands the internals of Android automation frameworks and enjoys solving problems that don’t yet have established answers. This is a 60-day R&D contract with defined outcomes, full technical autonomy, and scope for continued...

You will integrate solutions with new hardware platforms optimise the Android OS graphics stack, benchmark systems against competitors to ensure the best possible graphics on the market. This is a fantastic opportunity to shape the future of mobile graphics and contribute to the next generation of mobile devices, while working with state-of-the-art technology.

App Developer (6-Month Contract) Location: hybrid - 1-2 times onsite a month for meetings in Birmingham. Start Date: January/ February Contract Duration: 6 Months (Outside IR35) About the Role: On behalf of our client, we are seeking a talented App Developer to design and build a fully functional e-commerce mobile application for our client retail business. The app will be available for...

You will be instrumental in the end-to-end development, maintenance, and optimization of our core mobile applications, ensuring seamless functionality and native-like performance across iOS and Android. This role demands a strong focus on maintaining code health and enhancing existing native modules to push the boundaries of our products.

Job Title: Senior Mobile Engineer / Architect (iOS / Android) Location: Remote – UK Salary: £130,000 - £150,000 The Company This isn’t your typical mobile app startup. The company is redefining what’s possible in real-time interaction and remote collaboration, powering zero-download, enterprise-grade screen sharing and co-browsing used by some of the biggest brands in the world. Their...

You will be a champion of Object-Oriented programming and software engineering principles

You will be a Senior level App Developer to join an in-house team to help develop and launch two exciting new products that will form a key part of the company proprietary event technology suite. Working closely with the CTO, following clear technical requirements along with an experienced Developer and the Head of department to bring both apps to life, from initial build to live deployment.

🚀 Mobile Developer 📍 Location: Remote, must be based in the UK (occasional office visits in Exeter) 🔒 Security Clearance: Must be SC Clearable Are you a skilled Mobile Developer with a passion for building high-quality apps using Flutter? Do you have hands-on experience with Android or iOS platforms and a desire to work on impactful solutions? If so, we’d love to hear from you. Join our...

Full Stack Developer Location: Remote UK (first week on site at Altrincham office, WA14 5UW, travel and accommodation covered) Hours: Full-time, Mon-Fri, 9:00-17:00 Start Date: February 2026 Salary: £45-50k Due to ongoing expansion and internal progression, we’re now looking for a Full Stack Developer to join our wider Web and DevOps team. You’ll work on high-impact, modernisation projects,...

A leading FinTech innovator is shaping the future of financial markets - across traditional finance and crypto - with cutting-edge trade surveillance technology. Their mission is to protect investors, enhance transparency, and ensure compliance in some of the world's most dynamic markets. Trusted by regulators and institutions worldwide, their systems monitor over a trillion events every single...

Mobile Tech Lead Up to £95k Fully remote working (UK) Would you like the opportunity to work as a MobileTech Lead for a leading travel organisation, where you will be responsible for architecting and delivering a brand-new post-booking mobile app. You’ll be both architect and hands-on developer, setting the foundations, leading the technical direction, and ensuring fast, high-quality delivery...

GDM Coding - Freelance (20 to 40 hours a week) Job Description: Responsibilities: - Model Quality Assessment: Evaluate the quality of AI model responses that include code, machine learning, AI, identifying errors, inefficiencies, and non-compliance with established standards. - Code Annotation and Labeling: Accurately generate, annotate and label code snippets, algorithms, and technical...

You will be hands-on with POCs and rapid prototypes.

Job Title: Expert Rater (AI/ML Code Evaluation) Location: UK Locations/No of Open Roles: UK Duration: 1 year, remote Work Mode: Standard local working hours (flexible part-time options) Job Description: Responsibilities: Model Quality Assessment: Evaluate the quality of AI model responses that include code, machine learning, AI, identifying errors, inefficiencies, and non-compliance with...

You will work on large-scale batch processing pipelines while also contributing to APIs and sometimes UIs, ensuring our products remain reliable, efficient, and impactful. The role requires strong problem ownership, and clear communication across teams like other Engineering teams, Product, and Solution Consulting.

Description We are seeking a Mobile Application Developer to design, build, and maintain our iOS and Android apps. Working closely with web and backend developers, product managers, and designers, you will contribute to new product features while improving our existing mobile platforms. The successful candidate will be detail-oriented, collaborative, and passionate about delivering seamless user...

Mobile QA Tester (Spanish-Speaking) Remote (UK-Based) 6 Month Contract A great opportunity for an experienced Mobile QA Tester fluent in English and Spanish (es-ES) to join a leading edtech company as they continue to deliver new features and updates across their English and Spanish mobile apps. The Mobile QA Tester will focus on testing across both iOS and Android versions, ensuring...

Android Developer – SaaS / Field Service Platform Salary: £60,000–£70,000 Location: Ireland or UK (preferably NI or Leeds area) Work pattern: Fully flexible hybrid (remote-friendly) Our client is a multi-award-winning SaaS company that has built one of the UK and Ireland’s leading mobile workforce management platforms. Their software enables field-based teams in construction, facilities...

You will work on frontend, backend, or full-stack features and collaborate with product managers, designers, and DevOps engineers to deliver functionality for both web and mobile experiences. While mobile development is not a core requirement, exposure to iOS or Android is considered a strong plus.