Filipe Mendes
Madeira, Portugal
MSc in Engineering Physics with experience building web and mobile products.
Background across healthcare, banking and independent software development.
Experience
Product Development
Independent
Dec 2025 - Present
Designed, built and shipped software products independently, covering product design, implementation, testing and release.
- Launched Arc Timer, a React Native workout application for iOS and Android, developed end-to-end from concept to store submission.
- Built filipemendes.dev, a responsive portfolio platform showcasing projects, documentation and technical content.
Stack: React Native · Next.js · TypeScript · TanStack Query · Jest
Frontend Engineer
ACIN group
Oct 2023 - Jul 2025
Contributed to the migration of a healthcare management platform from server-rendered PHP to React, introducing API-driven workflows and supporting the transition to a modern frontend architecture.
- Built React interfaces for healthcare administration, patient management and medication workflows.
- Integrated GraphQL APIs supporting form-driven workflows, validation and paginated data interfaces.
- Developed reusable form patterns and layout primitives for large, mobile-constrained workflows.
- Ported legacy PHP screens to React while maintaining parallel old and new interfaces.
Stack: React · TypeScript · GraphQL · Styled Components · Playwright
Mobile Developer
Nearsoft
Jan 2023 - Sep 2023
Worked on mobile banking applications from initial development to release, covering core financial workflows under production constraints.
- Built React Native interfaces across account management, transfers, payments and debit card features.
- Integrated REST APIs supporting authentication, request mapping, pagination and error handling.
- Improved application modularity through shared components and reusable screen patterns.
- Participated in App Store and Google Play release processes.
Stack: React Native · TypeScript · REST APIs · Postman
Software Engineer
INOV
Mar 2021 - Feb 2022
Worked on applied computer vision research for infrared-based object detection and classification in surveillance systems.
- Built an infrared-based detection system for identifying people, vehicles and deer.
- Trained and evaluated models using TensorFlow and supported deployment into a C# inference application using OpenCV.
Stack: Python · TensorFlow · CUDA · OpenCV · Computer Vision
Projects
Designed and built a production-level mobile application covering the full workout lifecycle from setup to execution and tracking.
- Cross-platform mobile architecture with React Native and Expo Router enabling fast iteration and consistent behavior.
- State-based timer system with a 1Hz update cycle ensuring predictable execution under runtime constraints.
- UI-thread animations with React Reanimated avoiding JavaScript thread blocking.
Stack: React Native · Expo Router · React Reanimated · TypeScript · TanStack Query · Jest
Designed and built a portfolio platform for presenting projects, documentation and a developer profile.
- Next.js App Router architecture with server-rendered pages for landing, project and documentation flows.
- Motion-driven UI using Framer Motion for layout transitions and content sequencing across the platform.
- Multi-surface structure combining projects, documentation and profile content within a single application.
Stack: Next.js · TypeScript · App Router · CSS Modules
Education
MSc in Engineering Physics
Instituto Superior Técnico - Universidade Lisboa
2015 — 2021
Skills
- FrontendReact · React Native · Next.js · TypeScript · JavaScript · HTML · CSS
- State ManagementRedux · Zustand · TanStack Query
- Data & APIsGraphQL · REST APIs · Postman
- TestingPlaywright · Jest
- UI & AnimationStyled Components · Framer Motion · React Reanimated
- ToolsGit · Figma · Cursor · Codex
Languages
- PortugueseNative
- EnglishC1
Filipe Mendes
Madeira, Portugal
MSc in Engineering Physics with experience building web and mobile products.
Background across healthcare, banking and independent software development.
Experience
Product Development
Independent
Dec 2025 - Present
Designed, built and shipped software products independently, covering product design, implementation, testing and release.
- Launched Arc Timer, a React Native workout application for iOS and Android, developed end-to-end from concept to store submission.
- Built filipemendes.dev, a responsive portfolio platform showcasing projects, documentation and technical content.
Stack: React Native · Next.js · TypeScript · TanStack Query · Jest
Frontend Engineer
ACIN group
Oct 2023 - Jul 2025
Contributed to the migration of a healthcare management platform from server-rendered PHP to React, introducing API-driven workflows and supporting the transition to a modern frontend architecture.
- Built React interfaces for healthcare administration, patient management and medication workflows.
- Integrated GraphQL APIs supporting form-driven workflows, validation and paginated data interfaces.
- Developed reusable form patterns and layout primitives for large, mobile-constrained workflows.
- Ported legacy PHP screens to React while maintaining parallel old and new interfaces.
Stack: React · TypeScript · GraphQL · Styled Components · Playwright
Mobile Developer
Nearsoft
Jan 2023 - Sep 2023
Worked on mobile banking applications from initial development to release, covering core financial workflows under production constraints.
- Built React Native interfaces across account management, transfers, payments and debit card features.
- Integrated REST APIs supporting authentication, request mapping, pagination and error handling.
- Improved application modularity through shared components and reusable screen patterns.
- Participated in App Store and Google Play release processes.
Stack: React Native · TypeScript · REST APIs · Postman
Software Engineer
INOV
Mar 2021 - Feb 2022
Worked on applied computer vision research for infrared-based object detection and classification in surveillance systems.
- Built an infrared-based detection system for identifying people, vehicles and deer.
- Trained and evaluated models using TensorFlow and supported deployment into a C# inference application using OpenCV.
Stack: Python · TensorFlow · CUDA · OpenCV · Computer Vision
Projects
Designed and built a production-level mobile application covering the full workout lifecycle from setup to execution and tracking.
- Cross-platform mobile architecture with React Native and Expo Router enabling fast iteration and consistent behavior.
- State-based timer system with a 1Hz update cycle ensuring predictable execution under runtime constraints.
- UI-thread animations with React Reanimated avoiding JavaScript thread blocking.
Stack: React Native · Expo Router · React Reanimated · TypeScript · TanStack Query · Jest
Designed and built a portfolio platform for presenting projects, documentation and a developer profile.
- Next.js App Router architecture with server-rendered pages for landing, project and documentation flows.
- Motion-driven UI using Framer Motion for layout transitions and content sequencing across the platform.
- Multi-surface structure combining projects, documentation and profile content within a single application.
Stack: Next.js · TypeScript · App Router · CSS Modules
Education
MSc in Engineering Physics
Instituto Superior Técnico - Universidade Lisboa
2015 — 2021
Skills
- FrontendReact · React Native · Next.js · TypeScript · JavaScript · HTML · CSS
- State ManagementRedux · Zustand · TanStack Query
- Data & APIsGraphQL · REST APIs · Postman
- TestingPlaywright · Jest
- UI & AnimationStyled Components · Framer Motion · React Reanimated
- ToolsGit · Figma · Cursor · Codex
Languages
- PortugueseNative
- EnglishC1