Senior Backend Engineer

About the Company

At South Geeks, we connect top LATAM engineering talent with innovative companies building impactful products worldwide. Our client is a financial technology company that provides secure payment and prepaid card solutions for public sector organizations.

Responsibilities

• Develop and maintain backend functionality in a PHP-based payment processing platform
• Contribute to the gradual migration of selected systems from PHP to Rust
• Troubleshoot production issues and perform data investigations
• Participate in weekly production releases and maintain stable deployment cycles
• Review code and collaborate with engineers to maintain code quality
• Support and evolve system observability through logging, monitoring, and debugging tools
• Work closely with the team to maintain complex payment workflows

Requirements

• Senior-level experience developing backend systems in PHP
• Strong experience with MySQL and relational database design
• Experience maintaining and evolving large, long-lived codebases
• Solid understanding of Unix/Linux environments
• Experience debugging production systems and investigating complex data issues
• Familiarity with automated testing practices
• Experience working with message queues, logging systems, or asynchronous processing
• Strong analytical skills and ability to learn complex domains

Preferred Qualifications

• Experience with Rust or interest in learning it
• Experience working with financial systems, payments, or fintech platforms
• Some JavaScript experience for occasional frontend tasks
• Experience using AI-assisted coding tools

Benefits

• Long-term projects
• 100% remote work
• Payment in USD
• Paid Time Off (PTO)
• Work-from-home & training reimbursement
• English lessons
• Technical training
• Career coaching