Available to hire
Mobile Lead/Engineer driving high-impact cross-border remittance and real-time transaction systems using React Native, WebSockets, and robust CI/CD. Leads teams, mentors developers, and delivers cross-platform architectures that improve release cadence, stability, and UI consistency.
Experienced across iOS/Android with React Native, Expo, and native Swift/Objective-C plus Kotlin/Java. Builds scalable monorepos, performance-oriented backends (Node.js/GraphQL/REST), and resolves complex domain constraints such as release pipelines, banking security hurdles, and real-time event flows.
Skills
Experience Level
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
Language
Portuguese
Fluent
Spanish; Castilian
Fluent
English
Fluent
Work Experience
Lead Mobile Engineer - Contract at Remitly
April 1, 2025 - PresentSpearheaded architecture and delivery of a critical cross-border remittance feature impacting millions of global users and driving significant revenue growth. Architected and deployed a robust real-time transaction tracking system using React Native and WebSockets, reducing customer support inquiries about transfer status by 40%. Led a cross-functional squad of 8 engineers, established rigorous CI/CD pipelines and automated testing protocols to reduce release cycles from bi-weekly to on-demand, achieving 99.9% crash-free rate. Mentored senior developers and drove adoption of a unified design system across iOS and Android to improve UI consistency and development velocity.
Lead Mobile Engineer (Contract) at Remitly
April 1, 2025 - PresentSpearheaded architecture and delivery of a critical cross-border remittance feature impacting millions of users globally and driving significant revenue growth. Architected and deployed a robust real-time transaction tracking system using React Native and WebSockets, reducing customer support inquiries about transfer status by 40%. Led a cross-functional squad of 8 engineers, established rigorous CI/CD pipelines and automated testing to decrease release cycles from bi-weekly to on-demand, achieving a 99.9% crash-free rate. Mentored senior developers and drove adoption of a unified design system across iOS and Android, improving UI consistency and development velocity.
Lead Mobile Engineer - Contract at Kato
October 1, 2024 - PresentLed the redevelopment of existing native iOS and Android applications into a unified cross-platform architecture using React Native, Nx, and Expo. Designed and implemented a monorepo structure to enable code sharing of UI components and themes across multiple apps. Streamlined app scaffolding to accelerate feature delivery and onboarded React developers to the new stack through a comprehensive course.
Lead Mobile Engineer - Contract at Kato October
October 1, 2023 - April 1, 2025Led redevelopment of existing native iOS and Android applications into a unified cross-platform architecture leveraging React Native, Nx, and Expo. Designed and implemented a monorepo structure using Nx to enable code sharing across multiple applications, including UI components and themes. Streamlined app scaffolding to speed up feature and application development cycles. Facilitated onboarding of React developers to the new architecture by delivering a comprehensive course.
Lead Mobile Engineer (Contract) at Katoo
October 1, 2023 - April 1, 2025Led the re-development of existing native iOS and Android applications into a unified, cross-platform architecture leveraging React Native, Nx, and Expo. Designed and implemented a monorepo structure using Nx to enable code sharing, including UI components and themes across multiple applications. Streamlined app scaffolding to speed up development cycles for new features and applications, and supported onboarding of React developers into the new React Native, Nx, and Expo architecture through a comprehensive course.
Mobile Team Lead - Contract at Pynea
June 1, 2023 - October 1, 2024As Mobile Team Lead and first engineer hired, built a cross-functional team of five, established agile processes, and led the technical direction for mobile and backend systems. Architected the mobile apps (iOS/Android) in native Swift/Obj-C and Kotlin/Java, while maintaining and improving the React Native app. Designed a scalable Node.js backend to support real-time communication and data synchronization, including live events and video calls.
Mobile Team Lead - Contract at Pynea
June 1, 2022 - October 1, 2023First developer hire; built a cross-functional team of five engineers, established agile processes, and led technical direction for mobile and backend systems. Architected the entire iOS and Android mobile app using Swift/Objective-C and Kotlin/Java while maintaining an existing React Native application. Designed scalable Node.js backend infrastructure supporting real-time communication, live events, and video calls.
Mobile Team Lead (Contract) at Pynea
June 1, 2022 - October 1, 2023As the first developer hired, built a cross-functional team of five engineers, established agile processes, and led technical direction for mobile and backend systems. Architected the entire iOS and Android mobile app using Swift/Objective-C and Kotlin/Java while maintaining an existing React Native application. Designed scalable Node.js backend infrastructure supporting real-time communication, live events, and video calls.
Lead React Native Developer (Contract) at Net-A-Porter
February 1, 2021 - June 1, 2022Led the re-development of native iOS and Android apps into a single React Native app, maintaining distinct look and functionality via advanced theming and feature toggling. Successfully released the app globally, generating over £5 million in daily revenue.
Lead React Native Developer - Contract at Net-A-Porter
February 1, 2021 - June 1, 2023Led the redevelopment of native iOS and Android apps into a single React Native app. Resolved disparities in look and feel through theming and feature toggling, enabling one codebase to support two distinct experiences. The globally released app contributed to substantial revenue generation, with the platform reporting high daily revenue.
Senior React Native Developer (Contract) at Zopa Bank
July 1, 2020 - January 1, 2021Developed new features and upskilled React developers into React Native via custom sessions and pair programming. Overcame strict banking security hurdles by writing features from scratch to minimize external dependencies.
Senior React Native Developer - Contract at Zopa Bank
July 1, 2020 - January 1, 2021Developed new features on top of the existing app and upskilled React developers into React Native. Implemented secure development practices with limited external npm modules, building features from scratch and guiding the team through build processes and native integration via pair programming.
Lead Android Developer (Contract) at Telia Sverige
February 1, 2020 - June 1, 2020Optimized Telia Play streaming app native architecture and implemented GraphQL for dynamic rendering. Refactored player code, serving ~1 million monthly active users across Nordic countries.
Lead Android Developer - Contract at Telia Play
February 1, 2020 - June 1, 2020Redeveloped Telia Play's streaming app native architecture. Enabled dynamic rendering of components based on incoming data via GraphQL, and refactored native player code for improved performance and maintainability across Nordic markets.
Lead Android Developer - Contract at Telia Sverige
February 1, 2020 - June 1, 2020Led the redevelopment of Telia Play streaming app's native architecture. Enabled dynamic rendering of components via GraphQL and refactored the native player code for improved performance and maintainability across the mobile app.
Lead Android / React Native Developer at GenFlow
July 1, 2019 - January 1, 2020Created a white-label fitness/e-commerce app using TypeScript, React Native, Apollo GraphQL, and Stripe.
Lead Android / React Native Developer - Contract at GenFlow
July 1, 2019 - January 1, 2020Created a boilerplate fitness/e-commerce app to be white-labeled. Built three core sections (fitness/activity tracker, community/chat, and e-commerce) with TypeScript, React Native, Pusher ChatKit, Stripe for payments, and Apollo GraphQL for APIs.
Senior Full-Stack Developer at BlockEx
April 1, 2018 - June 1, 2019Led front-end development of a crypto trading platform using React Native, Redux, and SockJS.
Senior Full-Stack Developer - Contract at BlockEx (Crypto Fintech)
April 1, 2018 - June 1, 2019Led front-end development of a greenfield cryptocurrency trading platform mobile app using TypeScript, React Native, Redux, and SockJS for real-time data.
Lead UI / Front-end Developer - Contract at Flipper Ltd
September 1, 2017 - April 1, 2018Directed UI/front-end development, delivering polished front-end features and interfaces to meet product goals.
Senior UI / Front-end Developer - Contract at GiveSmart
April 1, 2017 - September 1, 2017Developed UI/front-end components and features, aligning with user experience and performance goals for the product.
Front-end Consultant at Wex Europe
February 1, 2017 - April 1, 2017Provided front-end consulting to accelerate project delivery and improve UI/UX quality.
Lead UI Developer at Flippert Ltd
January 1, 2017 - January 1, 2018Front-End Consultant / Lead UI Developer at Wex Europe
January 1, 2017 - December 1, 2017Senior UI Dev at GiveSmart
January 1, 2017 - December 1, 2017Lead UI Developer at Flippr Ltd
January 1, 2017 - January 1, 2018Lead UI / Front-end Developer – Contract at Maersk Line
September 1, 2016 - February 1, 2017Led UI/front-end development for Maersk Line, delivering scalable front-end solutions within a contract arrangement.
Lead UI Developer at Maersk Line
January 1, 2016 - January 1, 2017Lead UI / Front-end Developer - Contract at Intermedia PLC
March 1, 2015 - September 1, 2016Led front-end development efforts, delivering user-centric UI components and interfaces under contract.
Lead UI Developer at Intermedia PLC
January 1, 2015 - January 1, 2016Intermediate PLC / Front-End Developer at Intermedia PLC
January 1, 2015 - January 1, 2016Front-end Developer - Permanent at Multicom Products Ltd
August 1, 2012 - March 1, 2015Developed front-end interfaces and web applications, contributing to product delivery and maintenance.
Front-End Developer (Multicom Products) at Multicom Products
January 1, 2012 - January 1, 2015Junior Web Designer and Front-end Developer at Lime Media Limited
September 1, 2009 - August 1, 2012Expanded front-end skills, designing web interfaces and contributing to early-stage product development.
Education
IGCSEs (9 subjects, A*-B) at International School of The Algarve
January 1, 2006 - January 1, 2009JavaScript Course at DotPeak Web School
January 1, 2009 - January 1, 2010IGCSEs at International School of The Algarve
January 1, 2006 - January 1, 2009JavaScript Course (HTML / CSS) at DotPeak Web School
January 1, 2009 - January 1, 2010Web development courses at DotPeak Web School
January 1, 2009 - January 1, 2010IGCSEs at The School of the Algarve
January 1, 2006 - January 1, 2009HTML/CSS at DotPeak Web School
January 1, 2009 - January 1, 2010IGCSE at SchooI of The Algarve
January 1, 2006 - January 1, 2009Qualifications
Industry Experience
Media & Entertainment, Software & Internet, Financial Services, Telecommunications, Retail, Professional Services
Skills
Experience Level
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
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