Technical Lead Backend (.NET)

Job description

As part of our rapid growth, we are looking for an experienced Technical Lead Backend to lead the backend development team, drive technical excellence, and ensure the successful delivery of our enterprise-level B2B E-commerce platform. This role requires hands-on expertise in backend development, architecture design, and mentoring a team of engineers.

KEY RESPONSIBILITIES:

• Technical Leadership: Lead backend development efforts, ensuring best practices in coding, architecture, and system design.
• System Architecture & Scalability: Design and implement scalable, high-performance backend services.
• Development & Implementation: Develop, maintain, and optimize backend services using .NET Core.
• Database Management: Work with PostgreSQL and SQL databases to optimize performance and reliability.
• Search & Indexing: Implement and optimize ElasticSearch for efficient data retrieval.
• Cloud & Infrastructure: Deploy and manage applications on cloud platforms, utilizing Kubernetes (K8s) for orchestration.
• Code Review & Mentorship: Provide technical guidance, review code, and mentor junior engineers.
• Collaboration: Work closely with frontend, product, and DevOps teams to ensure seamless integration and deployment.
• Troubleshooting & Optimization: Identify bottlenecks, troubleshoot issues, and optimize backend services for performance and security.

Your skills and experience

Must-have:

• Minimum 8 years of experience in backend development, with at least 2 years as a Technical Lead.
• Proficiency in .NET Core, C#, ASP.NET MVC, Web API.
• Strong experience in OOP, design patterns, microservices architecture.
• Deep understanding of database design, SQL queries, and schema optimization.
• Hands-on experience with asynchronous programming, multi-threading, and inter-process communication.
• Experience with unit testing and test-driven development (TDD).
• Strong problem-solving and analytical skills.
• Ability to work in a fast-paced, agile environment.

Nice-to-have (Bonus Points):

• Experience with PostgreSQL and optimizing queries for high-performance applications.
• Experience with ElasticSearch for indexing and search functionalities.
• Hands-on experience with Kubernetes (K8s) for container orchestration.
• Knowledge of cloud platforms (AWS, Azure, or GCP).
• Familiarity with OAuth2, Docker, Linux environments.
• Experience working on high-scale, enterprise-level B2B E-commerce platforms.

Why you'll love working here

• Join a strong winning-spirit team of creating new business platforms for Vietnam and SEA.
• Human centricity environment, focusing on collaboration and success.
• Social insurance coverage upon signing your employment contract.
• Generous leave policy: 12 annual leave days plus all Vietnamese public holidays.
• 13th-month salary (applicable from the probationary period).
• Company-provided equipment.
• Well-stocked pantry: tea, coffee, snacks, microwave, etc.
• Engaging company activities: Company trips, team-building events, regular internal events (including live music performances!), and access to company-sponsored badminton courts.