LOCATION: Hanoi/HCMC

JOB DESCRIPTION 

We are looking for a Senior .NET Developer to join our team building the frontend/mobile side of a .NET MAUI-based HR
mobile solution for international clients. The ideal candidate is a senior C#/.NET developer with strong mobile development
experience (iOS/Android) and frontend development experience. The team works in an Agile/Scrum sprint model and
collaborates daily with colleagues in Australia.

• Design, develop, and maintain the mobile application (iOS & Android) frontend/UI layer
• Build responsive, high-quality UI screens and components following MVVM (or similar) patterns
• Diagnose and resolve platform-specific issues (e.g. iOS/Android release-build crashes, SSL/TLS certificate validation,
  native handlers)
• Integrate the mobile app with backend APIs provided by the backend team
• Optimize app performance, responsiveness, and cross-platform consistency (iOS & Android)
• Collaborate using Azure DevOps for work item tracking, CI/CD pipelines, and code reviews
• Communicate directly with international clients/stakeholders (primarily Australian colleagues) to clarify requirements
  and provide status updates
• Participate actively in Agile/Scrum ceremonies (sprint planning, daily stand-ups, sprint review, retrospective)
• Write clean, testable, well-documented code and participate in code/architecture reviews

REQUIRED SKILLS AND EXPERIENCE 

• Strong C#/.NET skills (5+ years of professional experience)
• +2 years of experience in mobile development, working with iOS and Android applications (native or cross-platform)
• Frontend development experience
• Solid understanding of software design patterns, debugging, and performance troubleshooting
• Experience consuming REST APIs, asynchronous programming (async/await), error handling, and network failure
  scenarios
• Familiarity with Git-based workflows and DevOps/CI-CD pipelines (Azure DevOps preferred)
• Experience working in Agile/Scrum sprint-based teams
• Fluent working proficiency in English (spoken and written) — daily collaboration with Australian colleagues

PREFERRED SKILLS

• Experience with .NET MAUI or Xamarin
• Has published app(s) on both the Apple App Store and Google Play (please share links/portfolio)
• Experience with .NET Core backend / Web API development
• Experience with Syncfusion or similar UI component libraries
• Prior experience working directly with overseas/Australian teams

BENEFITS 

• Salary: Up to 60M (Gross)
• Probation salary is 100% of official salary 
• 13th-month salary and annual performance review
• Bonus for special occasions each year (Labor Day, National Day, Solar New Year, Lunar New Year) 
• Project Bonus 
• IT Certificate allowance (AWS/Azure, OutSystems, Salesforce, PMP, Agile/Scrum) 
• Health Care Insurance 
• Social, health and unemployment Insurance following Government policy 
• Enjoy company summer trips and other team-building activities held monthly and quarterly 
• Work five days per week with flexible check-in time 
• Professional, creative and dynamic working environment

CONTACT

• Send CV to: [email protected]
• Hotline: +842466666100 (Recruitment Team)
• Facebook GEM Careers: https://www.facebook.com/tuyendungGEM
• LinkedIn GEM Careers: https://www.linkedin.com/company/gem-careers-hiring/