Vivek Kumar Sah
Lisbon
Summary
Full-stack mobile and web developer with 7+ years of experience building cross-platform applications for iOS, Android, and web. Specialized in React Native, Node.js, and cloud platforms with expertise in DevOps (CI/CD, Docker, GitHub Actions). Proven leadership as CTO, driving scalable product development, mentoring teams, and delivering innovative solutions in healthcare, fintech, and networking sectors.
Overview
8
8
years of professional experience
Work History
CTO- Tech Lead
Eight International
Lisbon
11.2024 - Current
- Led full-stack development of mobile & web apps with React Native, Nest.js, MongoDB.
- Defined scalable architecture, CI/CD pipelines, and zero-downtime deployment strategies.
- Mentored and managed a crossfunctional engineering team to deliver production-ready solutions.
Full-Stack Web/Mobile Developer /Tech lead
Future Edge Solutions
Lisbon
03.2023 - 10.2024
- Developed Wellbeing mental health app (React Native, Node.js, Firebase, GraphQL).
- Improved scalability, added new features, and ensured stability across iOS & Android.
- Created reusable components and performed extensive testing on multiple devices.
Full-Stack Developer
Pamafe-IT
Porto
04.2022 - 10.2022
- Built healthcare applications integrating HL7 and FHIR protocols.
- Developed Bem-me Ker (hospital system) and Wire-Co (back-office solution).
Full-Stack Mobile Developer
Red-IT
Lisbon
04.2021 - 04.2022
- Led mobile development for PIIP platform (React Native, Firebase).
- Delivered multiple cross-platform apps with scalable architecture.
Full-Stack Developer
Generis Farmacêutica S.A.
Amadora
03.2020 - 03.2021
- Developed hospital & pharma-related web/mobile solutions from scratch.
Full-Stack Developer
Digital Manager Guru
Santarém
09.2019 - 03.2020
- Integrated CRM systems into web platform improving operational efficiency.
- Built REST APIs and maintained existing projects with new features.
Full-Stack Developer
GBSN Research
Lisbon
04.2019 - 09.2019
- Developed analytical tools integrating social media APIs for advanced research.
- Built REST APIs enabling real-time data access.
Full-Stack Developer
GUI-Soft Officegest
Leiria
01.2018 - 03.2019
- Developed multiple web apps and IoT-based Wi-Fi Socket system.
- Integrated APIs and delivered scalable client-server solutions.
Education
Master's - healthcare information systems management
Polytechnic Institute of Leiria
09.2018
BBM(H) - Bachelor in Hospital Management
NSHM College of Management & Technology
01.2015
Skills
- TypeScript
- JavaScript
- Nodejs
- PHP
- Swift
- Java
- React
- Vuejs
- React Native
- Firebase
- WebRTC
- Android Studio
- Xcode
- Nestjs
- Expressjs
- GraphQL
- REST
- SocketIO
- Firebase Hosting
- Docker
- GitHub Actions
- Kubernetes
- MongoDB
- MySQL
- Redis
- Realm
- CI/CD Pipeline
- Play Store
- App Store
Languages
English
Portuguese
Hindi
Personal Information
Title: Senior Full-Stack & Mobile Developer
Publications
- Patient Safety and Vital Monitoring Interface, EPCGI Conference, 2017, Guimarães
- Rotary Club (Healthcare standard improvement), 2014, India
Timeline
CTO- Tech Lead
Eight International
11.2024 - Current
Full-Stack Web/Mobile Developer /Tech lead
Future Edge Solutions
03.2023 - 10.2024
Full-Stack Developer
Pamafe-IT
04.2022 - 10.2022
Full-Stack Mobile Developer
Red-IT
04.2021 - 04.2022
Full-Stack Developer
Generis Farmacêutica S.A.
03.2020 - 03.2021
Full-Stack Developer
Digital Manager Guru
09.2019 - 03.2020
Full-Stack Developer
GBSN Research
04.2019 - 09.2019
Full-Stack Developer
GUI-Soft Officegest
01.2018 - 03.2019
Master's - healthcare information systems management
Polytechnic Institute of Leiria
BBM(H) - Bachelor in Hospital Management
NSHM College of Management & Technology