Full Stack Developer (.NET + ReactJS + Flutter)

Helius Technologies

Singapore

Remote

SGD 120,000 - 180,000

Full time

2 days ago

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Job summary

Helius Technologies Pte Ltd in Singapore invites a versatile Full Stack Developer to join our engineering team. You will build, scale, and maintain cross‑platform applications spanning mobile, web, backend APIs, and enterprise integrations.

You should be a hands‑on troubleshooter, capable of addressing issues across the full stack, and you will leverage AI-assisted tools like GitHub Copilot to accelerate delivery of enterprise solutions.

Qualifications

Mobile Flutter/Dart development experience.
Web frontend with ReactJS, HTML5/CSS3.
Backend with .NET/C# and RESTful APIs.
SQL Server and Oracle databases expertise.
Git and GitHub Copilot usage.

Responsibilities

Build cross‑platform mobile and web apps across stack.
Design and maintain high-performance backend services and APIs.
Develop data integration and enterprise system connections.
Troubleshoot end‑to‑end across frontend, backend, and DB.
Collaborate with Product, UX/UI, and QA teams.

Skills

Mobile Development (Flutter/Dart)

Web Frontend (ReactJS)

Backend Engineering (.NET/C#)

Databases (MS SQL Server, Oracle)

AI Tooling & GitHub Copilot

Problem Solving

Git/Git workflows

Tools

Git

GitHub Copilot

Job description

Full Stack Developer (.NET, ReactJS, Flutter)

Job Title: Full Stack Developer

Role Level: Mid–Senior Level

Domain: Enterprise Application Development

Location: Singapore / Remote

Role Overview

We are seeking a versatile, hands-on Full Stack Developer to join our engineering team. In this role, you will build, scale, and maintain applications across mobile, web, backend APIs, enterprise system integrations, and relational databases.

You should be a true end-to-end troubleshooter who is comfortable investigating and resolving issues across every layer of the software stack. You will also leverage modern AI-assisted tools like GitHub Copilot to accelerate development, improve code quality, and deliver reliable enterprise solutions.

Key Responsibilities

Mobile & Web Development: Develop, enhance, and support cross-platform mobile applications using Flutter / Dart and responsive web applications using ReactJS.

Backend Services & APIs: Design, build, and maintain high-performance backend services and RESTful APIs using .NET / C#.

Database & Integrations: Write complex SQL queries, stored procedures, and data access layers on Microsoft SQL Server and/or Oracle; build and maintain robust enterprise system and API integrations.

Full-Stack Troubleshooting: Perform end-to-end root-cause analysis and debugging across frontend, backend, integration, and database layers.

Code Quality & Best Practices: Write maintainable, reusable, clean, and testable code while participating actively in peer code reviews, testing, and technical architectural discussions.

AI-Assisted Engineering: Utilize GitHub Copilot or similar AI-assisted development tools to speed up coding, refactoring, and debugging workflows.

Cross-Functional Collaboration: Partner closely with Product Managers, UX/UI Designers, QA Engineers, and cross-functional teams to translate business requirements into technical solutions.