Mobile App Jobs in Cardiff

1 to 25 of 63 Mobile App Jobs in Cardiff

Staff Mobile Engineer - React Native

Cardiff, South Glamorgan, United Kingdom
Hybrid / WFH Options
RVU Co UK
Party API Integrations. As well as a strong appreciation of A/B Testing, Monitoring and DevOps principles. Solid understanding of mobile app development principles, including UI/UX design, performance optimization/monitoring, capturing analytics and security best practices. A breadth of knowledge and experience with … native app development using all aspects of software development and familiarity with cross platform frameworks. Experience with React Native is a must for success in this role. Proficiency in the entire mobile app release process, including app store submission, version control, branch strategies and over … days per year "working from anywhere". A healthy learning and training budget. Electric vehicles scheme. Health insurance. Access to the Calm and Peppy app for physical and mental health. Regular events - from team socials to company-wide events with insightful external speakers, we want to make sure our More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Staff Mobile Engineer - React Native

Cardiff, Wales, United Kingdom
Hybrid / WFH Options
RVU Co UK
Party API Integrations. As well as a strong appreciation of A/B Testing, Monitoring and DevOps principles. Solid understanding of mobile app development principles, including UI/UX design, performance optimization/monitoring, capturing analytics and security best practices. A breadth of knowledge and experience with … native app development using all aspects of software development and familiarity with cross platform frameworks. Experience with React Native is a must for success in this role. Proficiency in the entire mobile app release process, including app store submission, version control, branch strategies and over … days per year “working from anywhere”. A healthy learning and training budget. Electric vehicles scheme. Health insurance. Access to the Calm and Peppy app for physical and mental health. Regular events - from team socials to company-wide events with insightful external speakers, we want to make sure our More ❯
Posted:

Senior Mobile Application Developer

Cardiff, Wales, United Kingdom
JR United Kingdom
and mobile communications, and actively investing in cutting-edge infrastructure, content, and technology companies. The company is seeking a Mobile App Developer to develop and optimize their customer-facing mobile application and web portal as part of their in-house system. Reporting to … the Head of Engineering, this role involves enhancing the app and web portal, which are currently 70% complete, to match the features of an existing SaaS solution. This is a hands-on role requiring extensive experience in delivering complex projects, especially in developing mobile applications for iOS … with Swift UI framework experience being essential. If you are an experienced Mobile App Specialist with a background in Android, iOS, and SwiftUI, and are eager to contribute to building and scaling a global technology start-up, we would love to hear from you! #J-18808-Ljbffr More ❯
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Quality Engineer – Mobile Apps (iOS/Android)

Cardiff, Wales, United Kingdom
JR United Kingdom
Social network you want to login/join with: Quality Engineer – Mobile Apps (iOS/Android), cardiff col-narrow-left Client: Halian Location: cardiff, United Kingdom Job Category: Other - EU work permit required: Yes col-narrow-right Job Views: 2 Posted: 06.06.2025 Expiry Date: 21.07.2025 col-wide Job … progressive, product-led organisation building modern mobile experiences. We are looking for a UK-based Quality Engineer with recent mobile app team experience , a strong understanding of modern engineering practices , and a coaching mindset. This is not a QA or testing-only role — we're … for a collaborative engineering leader who understands how to build quality into the development lifecycle. Key Requirements: Proven experience working in mobile app product teams (iOS/Android) within the last 2 years Strong understanding of CI/CD , Continuous Testing , and Shift Left/Right principles More ❯
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Mobile App Developer x 3 - Kotlin/|JetPack Compose - New Role (REFBJ6)

Cardiff, Wales, United Kingdom
RedRock Resourcing
user base. Strong proficiency in Android Kotlin coupled with a deep understanding of Android frameworks and APIs. Experience with engineering complex mobile app architectures, including data modelling, networking, caching, and synchronisation. Excellent problem-solving and debugging skills, with a passion for writing clean, efficient, and maintainable code. More ❯
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Full Stack Software Engineer

Cardiff, Wales, United Kingdom
Hybrid / WFH Options
JR United Kingdom
frontend team on API integration Assist with React Native development when needed Help implement and maintain frontend-backend interfaces Contribute to mobile app performance optimization Required Skills Strong experience with TypeScript and Node.js Proficiency in RESTful API development Experience with PostgreSQL or similar relational databases Understanding of … Knowledge of Prisma ORM Understanding of TypeBox or similar schema validation libraries Basic experience with React Native and Expo Familiarity with mobile app development concepts Experience with Vercel or similar deployment platforms Experience with automated testing What We Offer Opportunity to work on a modern, well-structured … environment Professional growth and learning opportunities Competitive salary and benefits package (equity participation) Super Reel Travel overview Users today have become accustomed to intuitive app interfaces that drive inspiration in any number of ways, TikTok is the prime example. Travel is a big legacy environment where customers are underwhelmed More ❯
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Mobile Application Developer

Cardiff, Wales, United Kingdom
JR United Kingdom
mobile experiences. They’re now looking to hire a Senior Mobile Engineer to take ownership of their mobile app and play a key role in shaping the future of their mobile product. ? About the Role You’ll lead the development of … a high-performance React Native app used by a large and growing user base. This role offers a high level of autonomy and the chance to work across the full development lifecycle — from concept to release. ? What You’ll Be Doing Leading React Native development for iOS and Android … TypeScript , GraphQL , Expo , React Query Working closely with backend engineers, product managers, and designers to deliver intuitive, responsive mobile features Continuously improving app performance and reliability Implementing best practices around testing, automation, and CI/CD pipelines What They’re Looking For Proven experience building and maintaining More ❯
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Principal Frontend Engineer (Equity Only) 2%

Cardiff, Wales, United Kingdom
JR United Kingdom
required: Yes col-narrow-right Job Views: 4 Posted: 31.05.2025 Expiry Date: 15.07.2025 col-wide Job Description: About Luupli Luupli is a social media app that has equity, diversity, and equality at its heart. We believe that social media can be a force for good, and we are committed … platform that maximizes the value that creators and businesses can gain from it, while making a positive impact on society and the planet. Our app is still in development, but we are excited about the possibilities it presents. Our team is made up of passionate and dedicated individuals who … focus on React Native. Strong leadership and management skills, with a track record of leading and motivating development teams. Experience with mobile app performance optimization, debugging, and troubleshooting. Proficiency in version control systems (e.g., Git) and agile development methodologies. Excellent communication and interpersonal skills, with the ability More ❯
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React Native Engineer

Cardiff, Wales, United Kingdom
Hybrid / WFH Options
JR United Kingdom
Social network you want to login/join with: Are you a React Native Engineer looking to work on impactful mobile products with real-world applications? Do you want to join a fast-growing tech company that's transforming a traditionally offline industry? My client is looking for … a skilled React Native Engineer to help build and scale mobile applications that serve thousands of users daily. This is an opportunity to contribute to a high-performance engineering team focused on creating seamless, reliable, and scalable solutions that make a tangible difference. What You'll Be Doing … What We’re Looking For: 4+ years of professional experience working with React Native Experience integrating RESTful APIs and working with mobile app architectures (MVC, MVVM, etc.) Familiarity with native development (iOS and Android) and bridging when necessary Proficiency with tools like Redux, React Navigation, and mobile More ❯
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Founding CTO / Technical Co-Founder (Consumer AI Startup)

Cardiff, Wales, United Kingdom
JR United Kingdom
consumer AI startup with a bold mission: to put an AI teammate in every pocket. Our vision is to build a mobile app that combines advanced LLM reasoning (orchestration layer) with deep API/MCP integrations to automate end-to-end workflows and tasks. We’re at … and deploying AI products, particularly with large language models (LLMs). Full-Stack Development for Consumer Applications: Proficiency in mobile and web app development. Rapid Prototyping & Iteration: Ability to build and iterate MVPs quickly, leveraging AI coding to 10x productivity. Bonus: Prior work at leading tech companies More ❯
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Mid Level React Native Developer

Cardiff, Wales, United Kingdom
Hybrid / WFH Options
JR United Kingdom
Remote - MUST be based in the UK - Outside IR35 - Around £350? Job Description: You will be responsible for developing and maintaining high-quality mobile applications using React Native. You'll collaborate with cross-functional teams to deliver modern, performant software solutions that meet our clients' needs. This is … contribute to meaningful projects while working remotely with a distributed team. Requirements: ● Strong React Native experience with a deep understanding of mobile app development ● Familiarity with Redux or other state management libraries ● Experience working with RESTful APIs ● Comfortable working in remote, collaborative environments ● Excellent communication and time … management skills Preferred Qualifications: ● Familiarity with mobile CI/CD pipelines and app store deployment #J-18808-Ljbffr More ❯
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Lead Software Engineer

Cardiff, Wales, United Kingdom
Hybrid / WFH Options
Mentmore
Products, Senior Tech Lead, and stakeholders to prioritise product features and ensure successful technical delivery. Design, develop, and maintain high-quality web and mobile applications using C# .NET, React, Azure, Git, and .NET MAUI. Continuously look for ways to improve the reliability, simplicity, and maintainability of systems - including … Technical Stack Experience Full-stack development with C# .NET, React, Git, and CI/CD pipelines Experience with .NET MAUI for mobile app development is a plus Strong background in relational databases, particularly PostgreSQL More ❯
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Senior Dotnet Developer

Cardiff, Wales, United Kingdom
Hybrid / WFH Options
JR United Kingdom
help shape that direction and cut your teeth into some exciting and pivotal problems. The stack is currently a React Native mobile app (currently being rewritten), with a .Net microservice architecture (monolith + services). Key Responsibilities: Service Creation: Drive the development of robust, scalable services that More ❯
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Mobile Engineer

Cardiff, Wales, United Kingdom
Hybrid / WFH Options
JR United Kingdom
AWS We’re partnered with a growing Series B company that is revolutionising the beauty industry. With the launch of their mobile app, they are now looking for a Senior iOS Engineer to join their team. Their personalised platform allows consumers to shop for the best beauty … products, and since launching the app, 25% of their members have engaged with it. They are now looking to grow and scale. As a Senior iOS Engineer, you will play a key role in shaping the future of their mobile presence, ensuring it meets customer needs. You … will develop new features to transform the app and the beauty industry. The role involves expanding their Swift application, integrating APIs, and leveraging AWS services alongside modern e-commerce platforms. You will work closely with cross-functional teams to ensure the app provides excellent service within the evolving More ❯
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Senior Android Developer x 2/3 - New! (REFGJ6)

Cardiff, Wales, United Kingdom
RedRock Resourcing
and deep understanding of Android frameworks and APIs. Strong experience with CI/CD & frequent release cadence. Experience with engineering complex mobile app architectures, including data modelling, networking, caching, and synchronisation. Excellent problem-solving and debugging skills, with a passion for writing clean, efficient, and maintainable code. … code reviews, ensuring adherence to best practices, code standards, and design principles. Continuously work with backend, frontend, and leadership teams to enhance the Android App Design. Excellent opportunity to join a leading organisation during a period of growth and change. Please send CV for full job description and an More ❯
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Senior Android Engineer

Cardiff, Wales, United Kingdom
JR United Kingdom
Social network you want to login/join with: An exciting chance for a Senior Android Engineer to join a high-performing mobile team that's constantly iterating, improving, and delivering features that actually get used. If you enjoy working in a fast-paced product environment where you … get on with the job - this is a standout contract. You'll be building high-impact features for a large-scale mobile app used by millions, helping shape everything from UX decisions to architectural design. You'll work end-to-end: planning, prototyping, implementing and releasing, all … and the speed at which good ideas make it into production. Advanced Kotlin skills and deep knowledge of Android SDK Proven experience shipping mobile features at scale Strong understanding of modern Android architecture and design patterns Experience in performance optimisation and scalable UI Confident working in fast-moving More ❯
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Channel Sales Manager - Corporate & Insurer - HealthTech

Cardiff, Wales, United Kingdom
Hybrid / WFH Options
JR United Kingdom
About SiSU Health UK A pioneering health technology company revolutionising preventative healthcare with cutting-edge digital solutions. Their self-service health stations and integrated app deliver instant health assessments and personalised insights, empowering individuals to proactively manage their health. The technology is deployed nationwide, with health stations in healthcare … UK and are looking for a purpose driven environment please apply now! Recent Milestones Over 5 million Health Checks completed globally Mobile app highly rated on app stores Accelerated revenue growth in recent years Large-scale workplace programme with the Department of Health & Social Care The More ❯
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Senior iOS Security Software Developer, Fraud

Cardiff, Wales, United Kingdom
JR United Kingdom
Posted: 06.06.2025 Expiry Date: 21.07.2025 Job Description: Who we are looking for A Senior Security Software Developer, who will lead the company's mobile security initiatives, architecting resilient defenses and mentoring teams to outsmart today’s advanced threats. Within the fraud site defense team, you will be a … leader in our security operations on our iOS platform. You will confront sophisticated hackers and reverse engineers, and shape the evolution of our mobile security landscape. Your role involves architecting cutting-edge anti-tamper and anti-cheat measures across our iOS native and companion apps, ensuring data integrity … in reverse engineering; ARM assembly knowledge is a plus. Skills in C/C++ for native security, and Swift for secure mobile app development. Experience in designing and evolving anti-tamper and defense systems. Leadership skills in security engineering teams, promoting best practices. Understanding of encryption, secure More ❯
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QA Tester

Cardiff, Wales, United Kingdom
Hybrid / WFH Options
JR United Kingdom
a full-time, permanent basis. In this crucial role, you’ll take ownership of the quality assurance process across a range of websites, mobile applications, and digital services, ensuring every project not only meets client expectations but makes a tangible difference in people’s lives. You’ll be … assumptions, ask questions, and embrace change Familiarity with accessibility standards and inclusive design is a plus Nice to Have! Experience with mobile app testing (iOS & Android) Understanding of digital tools such as CMSs, CRMs, chatbots, donation platforms What It’s Like to Work Here: At Reason Digital … social impact Choose your own high-spec Mac or PC setup Access to training, conferences, and career development support Perkbox benefits including free mobile insurance, high street discounts, and more Eye care vouchers, cycle to work scheme, and interest groups (yoga, walking, Agile, etc.) Free tea & coffee, summer More ❯
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iOS Engineer

Cardiff, South Glamorgan, United Kingdom
Hybrid / WFH Options
Starling Bank
are looking for people who want to work on building the tooling that is used by our engineers on a daily basis. Our mobile engineers work in cross-functional feature teams arranged across broader engineering groups. You are empowered to make the decisions necessary for the platform and … quality standards. We are looking for iOS engineers to work on these apps who: Want to work on a feature rich mobile app with millions of customers; Can produce robust, well tested code that will give our customers the reliability that they need; Care about the product More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

iOS Engineer

Cardiff, Wales, United Kingdom
Hybrid / WFH Options
Starling Bank
are looking for people who want to work on building the tooling that is used by our engineers on a daily basis. Our mobile engineers work in cross-functional feature teams arranged across broader engineering groups. You are empowered to make the decisions necessary for the platform and … quality standards. We are looking for iOS engineers to work on these apps who: Want to work on a feature rich mobile app with millions of customers; Can produce robust, well tested code that will give our customers the reliability that they need; Care about the product More ❯
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Android Developer – Remote (must be UK based) – £38k

Cardiff, Wales, United Kingdom
Hybrid / WFH Options
JR United Kingdom
work within the UK. They also offer flexible hours and holidays to accommodate work-life balance. 1-2 years of Android Mobile App Development experience Experience in fast-paced environments Proficiency in Kotlin, Jetpack Compose, and MVI Unit Testing/TDD experience is a plus If you More ❯
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R&D Engineer - C++

Cardiff, Wales, United Kingdom
JR United Kingdom
programming (C++, Python, or Matlab). Excellent problem-solving and critical thinking skills. Background in engineering software development. Experience with MySQL, AWS, or mobile application development is a bonus! Competitive salary (£30K-£40K) plus pension. 33 days' annual leave including bank holidays. Health cash plan and employee share More ❯
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Temp to Perm Senior Integrated Designer Role - Branding / Communications / Finance agency - Ful[...]

Cardiff, Wales, United Kingdom
Hybrid / WFH Options
JR United Kingdom
Designer, you'll collaborate with the Creative Team, Project Managers, Programmers to conceptualise and develop: - User-centric websites - Through-the-line advertising campaigns - Mobile applications - Digital banners - Print related material Requirements: - Designer with a minimum of 5 years of agency experience - Skilled in translating complex briefs into visually More ❯
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Spatial Experience Designer

Cardiff, Wales, United Kingdom
Hybrid / WFH Options
JR United Kingdom
Opportunity We are looking for a product-minded creative to join our production team. You’ll be at the forefront of designing our mobile AR experiences, ensuring they are not only visually compelling but make total sense to the people using them. Your role is about spatial storytelling … to shaping client-facing mock-ups and visuals at early concept stages. Key Responsibilities: Design spatial storyboards and interaction flows for location-based mobile AR experiences Use Figma and Miro to communicate user experience logic and product vision Create early visual mock-ups to support pitches and proposals … have... 5+ years of experience in product design, UX/UI, or digital experience roles ideally within AR, VR, 3D, or mobile app environments A degree in Digital Media, Interaction Design, Product Design, Interactive Digital Media, Human-Computer Interaction, or a related field A strong grasp of More ❯
Posted:
Mobile App
Cardiff
25th Percentile
£65,000
Median
£70,000
75th Percentile
£75,000