1 to 25 of 35 Contract Mobile App Jobs

Upwork Job Brief Mobile App Developer (React Native or Flutter) Project Overview We are looking for an experienced mobile app developer to build a new application from the ground up. The project involves end-to-end development, including frontend, backend, real-time features … should be comfortable taking a concept and turning it into a fully functional, production-ready app. Responsibilities Build a cross-platform mobile app using React Native or Flutter . Develop backend services using Firebase/Supabase/Node.js/AWS/GCP . Implement RESTful APIs , real ...

Upwork Job Brief Mobile App Developer (React Native or Flutter) Project Overview We are looking for an experienced mobile app developer to build a new application from the ground up. The project involves end-to-end development, including frontend, backend, real-time features ...

Security Architect - Mobile Applications Location: London | Hybrid Type: Contract We are looking for a Security Architect with strong Mobile Application experience to design and assure secure, scalable solutions across mobile, cloud, and enterprise environments. Key Responsibilities Lead security architecture and threat assessments to ensure … Essential Skills & Experience Proven experience as a Security Architect , with a strong focus on mobile security. Advanced knowledge of mobile app security, threat modelling, and secure architecture . Strong understanding of OWASP , NCSC guidance, and secure design patterns. Desirable Experience embedding security into the Mobile ...

About the team Our team isaccountable for security within the mobile channel. Weprovide a suite of mobile security components,that provides an all-round security posture in mobile appsincluding associated services (penetration testing, obfuscation, consultancy etc.). Our mission is tobuild a scalable, adaptable … posture using your hands-on experience. Develop and maintain pen-testing security tools, scripts, policies and procedures In depth knowledge of mobile app security standards (Android/iOS) Desirable knowledge & experience Familiarity with mobile development, DevSecOps tooling, testing and automation frameworks. Have deep knowledge ...

Mobile Security Engineer Work Location: Bristol (2days) Your Profile Essential Skills/Knowledge/Experience Experience of Mobile platform security, threat modelling and mitigation techniques Capable of conducting regular reviews of our mobile application security … posture using your hands-on experience Develop and maintain pen-testing security tools, scripts, policies and procedures In depth knowledge of mobile app security standards (Android/iOS) Desirable Skills/Knowledge/Experience Familiarity with mobile development, DevSecOps tooling, testing and automation frameworks Have ...

Location: Hybrid 2 days onsite, Edinburgh Outside IR35 BPSS Role Overview: As a React Native Developer, you will design and implement high-quality mobile applications tailored for the financial services sector. Your role will involve collaborating with cross-functional teams and ensuring optimal performance of our applications. … development and financial technology. Required Skills - Proven experience as a React Native Developer in financial services. - Proficiency in JavaScript and mobile app development best practises. - Experience with state management libraries (e.g., Redux, MobX). - Understanding of RESTful APIs and backend service integration. - Familiarity with mobile ...

About the Role Position: Mobile Security Engineer Location: Bristol/Leeds(hybrid) This role will be pivotal in building, delivering, and driving the security of mobile platform. The key aspect of this role is the design and delivery of a world-class security framework, including associated … posture using your hands-on experience. Develop and maintain pen-testing security tools, scripts, policies and procedures In depth knowledge of mobile app security standards (Android/iOS) Desirable knowledge & experience Experience with mobile development, DevSecOps tooling, testing and automation frameworks. Deep knowledge and experience ...

650pd OverviewWe are seeking an experienced Lead React Native Developer to take a senior leadership role across multiple development squads working on a mobile application focused on tracking stock market trading activity. Role Responsibilities Lead and oversee 3 development squads, each consisting of 46 developers plus a QA. … Experience Proven experience leading large teams or multiple development squads in a fast-paced environment. Strong expertise in React Native, including architecture, performance, and app optimisation. Background in mobile app delivery from concept through to production. Excellent communication, leadership, and stakeholder management skills. Experience working ...

Experience of Mobile platform security, threat modelling and mitigation techniques · Capable of conducting regular reviews of our mobile application security … posture using your hands-on experience. · Develop and maintain pen-testing security tools, scripts, policies and procedures · In depth knowledge of mobile app security standards (Android/ ...

Strategic Partnerships Development Manager Key Requirements (Non-Negotiable) Experience Level: 8-10 years in the Mobile App/Ad Tech industry. Must be a current IC (Level 5) and not have managed a team. Industry Expertise: Must have extensive, verifiable experience working directly with top-tier global … App Developers and App Publishers (e.g., in the same league as Ubisoft, Voodoo, Miniclip). Scope: Proven experience across both the Gaming and Non-Gaming verticals. Technical Focus (Monetization): Expert-level knowledge and implementation familiarity with AdMob is essential. Strong working knowledge of major mediation and ad platforms ...

comprehensive testing strategies for Android applications. * Identify, document, and track bugs and issues, ensuring timely resolution. * Collaborate with developers and product teams to improve app quality and user experience. * Conduct manual and automated testing to validate functionality, performance, and security. * Maintain detailed test documentation and reports. * Support continuous improvement … testing processes and tools. What you'll bring: * Proven experience in testing Android applications, with a strong understanding of mobile app quality assurance. * Familiarity with testing tools and automation frameworks. * Solid knowledge of software development lifecycle and Agile methodologies. * Excellent problem-solving skills and attention to detail. ...

cryptography frameworks in Go and JAVA Experience with SQL databases Experience and/or interest in application security and/or mobile app security Experience with cloud environments including DevOps functions and pipelines ...

Production Assets: Craft infographics, logos, and other design elements that enhance our digital presence. User Interface Design: Create captivating interfaces for web and mobile applications, making the mundane exciting. Digital Design System: Collaborate to scale and refine our digital design system, ensuring consistency and quality. Storytelling Mastery: Leverage ...

Production Assets: Craft infographics, logos, and other design elements that enhance our digital presence. User Interface Design: Create captivating interfaces for web and mobile applications, making the mundane exciting. Digital Design System: Collaborate to scale and refine our digital design system, ensuring consistency and quality. Storytelling Mastery: Leverage ...

Digital policies. This Senior role will lead direct to consumer digital journeys. This is a very delivery focussed role on Mobile App & Web, within the insurance world - People who have the experience will take top priority, due to the request from the client. The role: Serving … overall customer experience. Skills and experience we're looking for: Demonstrable experience in digital product delivery and leadership across both web and app platforms, whilst also setting up best in class digital teams and improving ways of working, output and outcomes over time Delivery of a portfolio of platforms ...

Keyresponsibilities: Lead the end-to-end design process for web and mobile applications. Define and maintain design standards, guidelines, and best practices. Mentor and guide UI/UX designers within the team. Conduct user research, usability testing, and analyze feedback to inform design decisions. Develop wireframes, prototypes … years in UI/UX design, with at least 2 years in lead designer role. Proven portfolio showcasing design projects for web and mobile platforms. Strong proficiency in HTML5, CSS3, JavaScript, and frameworks like React or Angular. Experience with RESTful APIs and MuleSoft integration. Knowledge of UX principles ...

leading recruitment marketplaces, our products power millions of job searches every day. From our flagship Reed.co.uk website to our award-winning mobile app, we help people find fulfilling work,and help businesses discover great talent. About the role Our Product Management team is laser-focused on delivering ...

Keyresponsibilities: Lead the end-to-end design process for web and mobile applications. Define and maintain design standards, guidelines, and best practices. Mentor and guide UI/UX designers within the team. Conduct user research, usability testing, and analyze feedback to inform design decisions click apply for full ...

ensuring the brand's premium essence is reflected across all digital touchpoints. Role & Responsibilities: Design elegant and user-friendly interfaces for our website, mobile apps, and marketing materials Collaborate with branding and marketing teams to develop cohesive visual concepts Create responsive, scalable designs that captivate and convert Maintain ...

working closely with the Digital team on internal website development across the CMS to ensure quality, usability, and performance of our web and mobile applications. * Involvement in functional, regression, UAT, exploratory, accessibility and integration testing. * Review and contribute to test documentation and test plans with management. * Write ...

. Carry out hardware break/fix repairs , including device strip down, diagnostics, component replacement, and rebuilds. Manage tickets using a mobile app - collect parts, attend site, complete repairs, and return parts the following day. Deliver efficient and professional onsite technical support to business users. Collaborate with ...

contract 6+ Months Hybrid model, 3 days onsite per week 2 days remote About the team Our team isaccountable for security within the mobile channel. Weprovide a suite of mobile security components,that provides an all-round security posture in mobile appsincluding associated services … penetration testing, obfuscation, consultancy etc.). Our mission is tobuild a scalable, adaptable, and proactive approach to securing LBGs mobile apps, enabling mobile engineers across the bank to operate with confidence and agility in an ever-evolving threat landscape. Were passionate about our shared passion ...

across D365, including requirements gathering, solution design, testing, UAT, and user enablement. Drive the development and rollout of: Customer Portals New Field Service mobile application for engineers Engineer route tracking and live resident-facing map Improved reporting from Work Orders including wider D365 data integration The D365 Functional ...

Senior Mobile Backend Developer (Java/Kotlin, AWS, Microservices) Contract Manchester | Hybrid We are hiring a Senior Mobile Backend Developer to work on high-scale, cloud-native platforms supporting mobile applications in a regulated environment. This is a hands-on backend role focused … standards, best practices, and technical quality. Key Responsibilities Design and build scalable backend services using Java or Kotlin and Spring Boot Develop secure, mobile-facing APIs using OAuth 2.0 and modern authentication patterns Work with microservices and event-driven architectures Deploy and support services in AWS/cloud ...

Splunk, Xcode, Android studio, SauceLab UI development or support experience Experience in two (or more) of the following: CSS, AJAX, ReactJS, GraphQL, AngularJS, Mobile application development o Reading and debugging Java and JavaScript code (Writing JavaScripts will be beneficial) Troubleshooting experience using browser developer tools Advance knowledge … components in cloud/web applications and experience in Application Support. Mobile application support experience will be bonus. Scripting languages: JavaScript, Python, Perl, Unix Shell, Windows Shell) Good experience with relational databases (e.g. MySQL, Oracle). Good experience writing or debugging Object Oriented code (Java preferred, other relevant ...