Lead Full Stack Engineer (L2/L3 Support)

Job Title: Lead Full Stack Engineer
Location: Bogotá, Hybrid (2 to 3 days going to office)
Type of Contract: Full-Time | Contractor
Salary Range: Market Rates
Language Requirements: Advanced English (C1+)

We are seeking a skilled Lead Full Stack Engineer with deep expertise in ASP.NET, React, and Microsoft Azure to join our growing team. You will play a key role in leading enterprise application development while ensuring production stability and performance. Your work will directly impact system reliability, scalability, and the success of critical retail platforms.

Key Responsibilities

• Own and maintain critical production systems, ensuring high availability and performance
• Provide L3/L4 support, resolve incidents, and conduct root cause analysis (RCA) with permanent fixes
• Develop and maintain backend (ASP.NET C# / .NET Core) and frontend (React) applications
• Write clean, scalable, and testable code while enforcing coding standards through code reviews
• Optimize SQL Server queries, indexing, and overall database performance
• Lead architecture discussions and guide technical decision-making across teams
• Collaborate with DevOps, Product, and Infrastructure teams to improve CI/CD pipelines and system observability

Must-Have Qualifications

• 7+ years of experience in full-stack software development
• Strong expertise in ASP.NET C# (.NET Core) and modern React frameworks
• Advanced experience with SQL Server, including performance tuning and query optimization
• Proven experience supporting production systems, including incident management and stability improvements
• Hands-on experience with Microsoft Azure cloud environments
• Strong understanding of RESTful APIs, microservices architecture, and authentication/authorization
• Experience with CI/CD pipelines (Azure DevOps or similar) and advanced debugging skills

Preferred Qualifications

• Experience with Angular
• Exposure to Snowflake or data warehousing solutions
• Background in retail or enterprise-scale systems
• Experience with data-driven architectures or AI-powered solutions
• Experience working with distributed or global teams

This opportunity is ideal for a highly accountable engineer who thrives in a hands-on leadership role, balancing technical execution with strategic thinking while mentoring teams and driving operational excellence.