Back End Developer

• Position: BACKEND DEVELOPER (.NET/C# - Maltem AUS)
• Quantity: 02
• Type: Full-time
• Location: 5nd Floor, TTC Building, No.19 Duy Tan St., Dich Vong Hau Ward, Cau Giay Dist,. Hanoi Capital, Vietnam.
• Working location: Hanoi/HCMC/Danang

ABOUT US

• Astek is a global player in engineering and technology consulting, founded in France in 1988. Today, we are +7500 engineers across over 30 countries in the world.
• With expertise in many industrial and tertiary sectors, we support our international clients in the intelligent deployment of their products and services, and in the implementation of their digital transformation.
• Astek Vietnam is established in 2022 to increase group’s capability to support our clients’ operation around the globe, leveraging Vietnam talented engineers.
• More information about our group: https://astekgroup.fr/

JOB DESCRIPTION & REQUIREMENTS

Key responsibilities:

➤ .NET Modernization & Migration:

• Migrated legacy .NET Framework applications to .NET Core using AWS Porting Assistant for .NET
• Refactored codebases to align with modern architecture patterns and SOLID principles
• Improved performance and maintainability through separation of concerns, reduced dependencies, and dependency injection
• Ensured compatibility with Linux-based containers to enable seamless cross-platform deployments
• Switched database backend from SQL Server to PostgreSQL (pgsql) for improved performance, cost-efficiency, and cross-platform compatibility
• Integrated Apache Airflow DAGs to schedule and orchestrate .NET batch jobs, data sync processes, and background maintenance tasks

➤ AWS Experience :

• Built and deployed containerized applications using ECS Fargate, with image workflows managed via ECR and CodePipeline
• Designed SQS messaging systems (FIFO/Standard) with deduplication and dead-letter queue support
• Optimized infrastructure with IAM roles, CloudWatch monitoring, and auto-scaling configurations
• Utilized AWS SDKs and services to build reliable, scalable microservice-based applications

Relevant Work Experience:

• Fluency in English communication is A MUST
• Having experience in working .Net min 5 years
• Bachelor’s degree and above in Technology university, and other related fields
• Be opened minded, have the ability to learn fast and willing to do attitude
• Having experience in Business Intelligence is an advantage

BENEFITS

• Attractive salary: Nego. Performance based award.
• Young and dynamic working environment.
• Continuous development of hard and soft skills through work and professional
• training.
• Opportunity to approach newest technology trends.
• Salary reviews 1 times/year or on excellent performance
• Company’s labor policy completely pursuant to Vietnamese labor legislation plus other benefits offered by the company (Company trip, Holiday, etc.)