Application Support Engineer (L3)

TL;DR

Application Support Engineer (L3): Investigating and resolving complex production incidents for distributed applications with an accent on root cause analysis, system stability, and cross-functional collaboration. Focus on debugging Node.js/TypeScript services, optimizing SQL queries, and ensuring high service availability within a microservices architecture.

Location: Must be based in El Salvador, Mexico, or Colombia

Company

hirify.global is an AI-native organization that designs, builds, and scales meaningful, AI-powered solutions to drive business impact.

What you will do

• Investigate and resolve complex production incidents across distributed applications and microservices.
• Perform structured Root Cause Analysis (RCA) and document findings, corrective actions, and preventive recommendations.
• Debug backend services using Node.js and TypeScript, implementing code fixes when necessary.
• Validate production fixes through API testing, SQL validation, and regression verification.
• Monitor production environments to proactively identify risks before they impact business operations.
• Collaborate with Development, QA, and Infrastructure teams to coordinate incident resolution.

Requirements

• Must be based in El Salvador, Mexico, or Colombia
• 4+ years of experience in Application Support, Production Support, or Software Engineering
• Advanced proficiency in Node.js, TypeScript, REST APIs, and SQL
• Experience troubleshooting distributed applications and performing Root Cause Analysis
• Familiarity with Azure DevOps, Azure services, and CI/CD processes
• English proficiency: B2+ or higher

Nice to have

• Experience using browser developer tools to troubleshoot frontend issues

Culture & Benefits

• High-performance culture focused on empowerment, collaboration, and transparency
• Opportunity to work with modern AI-native technologies
• Emphasis on continuous learning and professional growth
• Collaborative environment with strong, supportive teams