Job Title: Senior Backend Engineer (PHP)

Company Name: Southgeeks

Job Url: https://jobs.ashbyhq.com/southgeeks/74b66bbe-604d-45d4-b107-b5e22434d818?utm_source=jobright&jr_id=69b885293b74eb1e2c865ee8

Job Description: About the role
We’re looking for a Senior Backend Engineer (PHP) to help maintain and evolve a mission-critical payments platform operating at the intersection of government systems and prepaid card processing.

This role focuses heavily on backend development within a mature PHP-based platform that processes complex financial workflows. You will work with a long-lived codebase, contribute to weekly production releases, troubleshoot issues across distributed systems, and gradually help migrate portions of the system toward a Rust-based architecture.

The environment requires engineers who enjoy understanding complex domains, improving legacy systems, and building reliable infrastructure for systems that must operate with high observability and recoverability.

What you need to succeed in this role
Senior-level experience developing backend systems in PHP, ideally within a LAMP-based architecture.

Strong experience working with MySQL and relational database design.

Experience maintaining and evolving large, long-lived codebases.

Solid understanding of Unix/Linux environments and server-based application development.

Experience debugging production systems and investigating complex data or processing issues.

Familiarity with automated testing practices and maintaining large test suites.

Experience working with message queues, logging systems, or asynchronous processing.

Ability to work independently while collaborating through code reviews and technical discussions.

Strong analytical skills and ability to learn complex technical and business domains.