Full Stack Engineer (Remote: Vietnam)

Alongside partners with organizations to drive digital transformation and build high-performing tech teams.
We're building a real-time facility navigation and asset-tracking platform for industrial and logistics sites - GPS/BLE-based positioning, live forklift and asset overlays, zone/dwell analytics, and a driver-facing mobile app, backed by a distributed-systems (actor-model) backend.
The Role
We're looking for a Fullstack Engineer with a strong frontend focus to join the development of a real-time, data-driven platform.
Most of your work will focus on the React Native driver app, Mapbox GL JS features and the web-based admin portal, while also contributing to C#/.NET backend services when needed.
You'll work on interactive, real-time experiences involving live location, sensor and asset data, with a strong focus on performance and usability.
Responsibilities: Frontend (Primary)
Build and maintain the React Native driver app: QR onboarding/consent flows, GPS/BLE data display
Implement Mapbox GL JS features: live position overlays, zone/dwell visualization, realtime map layers
Own frontend performance and reliability for realtime, sensor-driven UI
Responsibilities: Backend (Secondary)
Build and maintain RESTful APIs and backend services in C#/.NET
Support GPS/BLE positioning data ingestion pipelines
Support telemetry ingestion and zone/dwell analytics processing
Work within an actor-model distributed backend (built on Microsoft Orleans) designed by the tech lead
Requirements
2-5 years of professional software development experience;
Strong experience with React and/or React Native, with solid knowledge of modern frontend development practices;
Experience building interactive, data-driven user interfaces;
Experience with Mapbox GL JS or other mapping/geospatial technologies such as Leaflet or Google Maps is highly valued;
Experience consuming and integrating REST APIs;
Comfortable working with real-time data, such as WebSockets, live updates, telemetry or similar;
Some professional experience with C#/.NET, or a strong willingness to work with it as part of a fullstack role;
Strong written and spoken English for daily collaboration with a distributed team
Nice to Have
Familiarity with distributed systems / actor-model concepts (e.g., Orleans, Akka)
Experience with BLE positioning or beacon technology
Background in industrial, logistics, or IoT/telemetry domains
Security-conscious development practices (authentication, PII handling
Benefits
Remote work (Vietnam-based)
Estimated project duration: 19 weeks
Full-time schedule: 8 hours per day, with mandatory availability for at least 4 hours
Freelance / Service Agreement
Hourly Rate: 12$-16$