Senior Software Engineer (.Net)

freeC's Client

We are looking for 2 experienced engineers to join a US-based team responsible for Store Onboarding the process of bringing new stores into a live production system.

This role is not typical software development. The work is focused on data operations, accuracy, and system configuration rather than building customer-facing features.

What You Will Do

• Lead Store Onboarding: Manage the end-to-end process of bringing new stores into the live production environment using direct database manipulation and configuration.
• Data Orchestration: Perform complex data imports, migrations, and schema configurations while ensuring 100% accuracy.
• Infrastructure as Code (IaC): Architect and maintain AWS resources (ECS, Lambda, RDS, VPC) using Terraform or AWS CDK. You will write the scripts, not just run them.
• CI/CD & Automation: Design and optimize GitHub Actions pipelines for .NET applications, including automated testing and rollback triggers.
• System Monitoring: Build and maintain Grafana/Prometheus dashboards to monitor CPU, error rates, and system health.
• Internal Tooling: Occasionally develop and enhance internal .NET tools to automate the onboarding pipeline and reduce manual operations.
• Collaboration: Act as a key bridge to the US-based team, taking full ownership of tasks and providing technical insights during Scrum ceremonies.

Technical Requirements

• Cloud Expertise (Must-have): Hands-on experience deploying and maintaining Microservices on AWS (ECS or Lambda). Deep understanding of Load Balancers, Task Definitions, and Auto-scaling.
• IaC Mastery: Proficient in Terraform or AWS CDK (ability to write infrastructure scripts from scratch).
• Advanced SQL: Strong skills in PostgreSQL or SQL Server. You should be comfortable with complex JOINS, index optimization, and migration tools (e.g., EF Core).
• Messaging & Event Streaming: Experience with Kafka or similar (Pub/Sub, Topic design, Consumer groups, and failure handling).
• Containerization: Expert knowledge of Docker (writing Dockerfiles, managing images, and multi-stage builds).
• CI/CD: Proven experience setting up GitHub Actions for .NET environments.
• Observability: Experience setting up alerts and dashboards in Grafana or Prometheus.
• Architecture: Deep understanding of Microservices vs. Monolith, OAuth2, and JWT-based authentication.

Qualifications & Soft Skills

• Experience: 8+ years in Software Engineering with a proven track record in international environments (specifically working with US or EU clients).
• Communication: Fluent English communication (Min. B2 level) capable of discussing complex technical architectures with US stakeholders.
• Mindset: A "Data-First" mentality. You enjoy the precision required for production data operations and value accuracy over "fast-and-break" coding.
• Ownership: Ability to work independently in a remote/distributed team and take full responsibility for the production environment.
• Commitment: We are looking for a long-term partner who wants to grow with the project.

• Working time: 4 days (Monday to Thursday) x 10-hour (6:30 PM - 5:00 AM Eastern)/ 6:30 - 17:00 (Vietnam time) with 30-minute lunch break
• Fully remote working
• Type of employment: Contractor
• NET salary (PIT will be covered by the company)
• Direct collaboration with a US-based engineering team.
• Your work ensures the successful growth of the business as every new store goes through your pipeline.
• Modern Stack: Work with the latest in AWS, IaC, and Event-driven architecture.
• Stability: A long-term project with a focus on quality and operational excellence rather than frantic feature deadlines.