Senior .NET Developer (AWS, MuleSoft)

Top 3 reasons to join us

• International and professional working environment
• Competitive salary package
• Flexible working time from Monday to Friday

Job description

• Design and build robust, fault-tolerant, and scalable solutions using .NET Core, hosted in AWS, leveraging services such as Lambda, SQS, API Gateway, RDS, and SNS
• Collaborate with the Technical Lead to define and document architecture and technical specifications across multiple systems
• Implement API-driven integrations between enterprise systems (e.g. ERP, POS, OMS, ecommerce platforms)
• Contribute to internal frameworks, coding standards, design patterns, and DevOps automation
• Write high-quality, testable code, and develop unit, integration, and end-to-end tests with strong code coverage
• Work closely with QA and IT Ops to ensure solutions are production-ready, monitored, and observable
• Actively participate in Agile ceremonies, sprint planning, retrospectives, and technical knowledge-sharing
• Identify performance bottlenecks and proactively resolve issues before they affect business operations
• Contribute to our technical knowledge base and engineering playbooks to support consistent team development practices

Your skills and experience

• 6+ years of software engineering experience, with 2+ years in a senior or lead role
• At least 1-2 years experience with AWS, especially Lambda, SQS, SNS, CloudWatch, RDS, API Gateway is a plus. Experience with CI/CD pipelines and AWS, infrastructure as code (CDK, CloudFormation, or Terraform)
• Deep expertise in C# / .NET Core, including asynchronous programming, Web APIs, and background processing
• Experience building solutions for highly scalable event driven architectures
• Skilled in designing and implementing system integrations using REST APIs, message queues, and cloud-native services
• Strong TDD/BDD mindset, with experience writing automated unit and integration tests
• Proven experience delivering complex technical projects in multi-functional, distributed teams
• Excellent problem-solving, time management, and communication skills
• Familiarity with Agile delivery practices, GitLab, and Jira/Confluence

Nice to Have

• Background in retail, e-commerce, supply chain, or ERP platforms is desirable
• Ability to coach other developers on .NET and contribute to the growth of the wider team

Why you'll love working here

Working environment:

• Hybrid working model (company office and home office)
• Work-life balance
• Work in an open-minded, friendly, positive, transparent environment.

 Compensations

• Full salary during 2-month probation period
• Full contribution to social insurance after probation period
• 13th-month bonus

 Type of leaves

• 11 public holidays, 14 days of annual leave and extra 2 annual leave added for every 3 years of service
• 02 days of paid sick leave without doctor document requirement
• Other leave: Christmas, Paid Paternity

 Premium Healthcare:

• Premium private insurance and 24/7 Accident Insurance
• Premium Annual Health Check Up

Other benefits:

• Birthday, Family care (Wedding, Babycare, etc.), Inpatient treatment
• Milestone Anniversaries
• Financial support for professional training certificates
• TechTalks, Soft skills workshops
• English training class
• Wellness activities (i.e. yoga, badminton)
• Company trip, Year-end-party, Regular beer night out