Senior PHP Application Engineer

Sourceability® is a global digital distributor of electronic components transforming how modern businesses bring products to market. With innovation, quality and logistics as the backbone of the company, Sourceability's cutting‑edge products and services expedite the procurement process across a wide range of industries, including communications/cellular, consumer electronics, and auto manufacturing.

Sourceability is building a new Global Engineering Organization (GEO) to strengthen internal software delivery, improve production ownership, and build long‑term engineering capability inside the company.

We are looking for a Senior PHP Application Engineer to help maintain, stabilize, improve, and modernize Sourceability's PHP‑based applications and integrations. This role is important for keeping existing business‑critical systems reliable while GEO builds stronger long‑term engineering ownership and delivery discipline. This role will work hybrid from our Singapore office.

This is not only a greenfield development role. The right candidate must be comfortable working with existing and legacy PHP codebases, understanding current behavior, fixing production defects, improving maintainability, cleaning up integrations, and making safe changes without disrupting business operations.

The Senior PHP Application Engineer will work closely with Product / Delivery Managers, Product Group Team Leads / Architects, QA, Dev Ops, DBA, Infrastructure, and business stakeholders to support stable delivery and reduce production risk.

This role is hybrid from our Austin, TX office.

• Maintain, stabilize, and improve existing PHP applications, backend services, and integrations that support Sourceability business operations.
• Diagnose and resolve production defects, application issues, performance problems, data inconsistencies, and integration failures.
• Develop new features and enhancements when needed, while keeping changes safe, maintainable, and aligned with business priorities.
• Read, understand, and improve legacy PHP code without creating unnecessary rewrites or production disruption.
• Refactor problematic areas of the codebase where practical to improve maintainability, reliability, security, and testability.
• Build and maintain integrations between PHP applications, internal systems, third‑party platforms, APIs, ERP systems, and data stores.
• Partner with Product / Delivery Managers to clarify requirements, acceptance criteria, defects, enhancement requests, and business impact.
• Partner with Product Group Team Leads / Architects to align implementation decisions with technical direction, modernization plans, and engineering standards.
• Work with QA to improve test coverage, regression validation, defect reproduction, and release readiness for PHP applications.
• Work with Dev Ops, DBA, Infrastructure, and Security teams to troubleshoot deployment issues, environment problems, database performance concerns, and operational risks.
• Participate in code reviews and help raise code quality, documentation discipline, and maintainability across PHP systems.
• Document existing behavior, integrations, known risks, support procedures, and technical decisions where documentation is missing or outdated.
• Support L3 technical escalation for PHP applications and contribute to root cause analysis after production incidents.
• Identify technical debt, fragile integrations, single points of failure, and modernization opportunities, then propose practical remediation steps.
• Mentor less experienced engineers when needed and share knowledge about application behavior, codebase structure, and safe change practices.

• 5+ years of professional PHP application development experience.
• Strong hands‑on experience with PHP, including experience with existing or legacy PHP applications.
• Experience with modern PHP practices and at least one major framework such as Laravel, Symfony, or similar, while also being comfortable with non-framework or older application code.
• Strong understanding of relational databases, SQL, data modeling, query optimization, and application-level data access patterns.
• Experience building,…