Making the Web Work Together – Ready to Join?

The Compatibility Team at OnTheGoSystems helps the internet connect. We ensure that WPML, the world’s most popular WordPress multilingual plugin, plays nicely with thousands of other plugins and themes. It’s a unique mix of detective work, deep development, and product insight.

Why It Matters

There are over 60,000 WordPress plugins and thousands of themes out there. Most weren’t built with multilingual support in mind. But our clients need them to work flawlessly in every language. Compatibility is what makes WPML more than just a plugin — it turns it into a reliable tool for serious global businesses.

We’ve built solid processes for tracking, fixing, and communicating compatibility issues. Our team has already resolved thousands of cases, helping plugin authors support WPML and giving clients the multilingual experience they expect.

Our mission is to make multilingual WordPress effortless. That means:

  • Proactive compatibility instead of reactive fixes
  • Scalable testing pipelines to handle plugin updates faster
  • Close relationships with major theme and plugin developers
  • Tools and automation to cut response time and raise quality

WPML is already trusted by 250,000+ websites.
Compatibility is how we keep that trust — and grow it.

The Tech

We work with PHP, MySQL, JS, and WordPress internals daily. But that’s just the starting point.

We tackle problems like:

  • Analyzing plugin structures to determine what breaks multilingual functionality
  • Hooking into unfamiliar codebases without slowing performance
  • Building test cases for third-party plugins we don’t own
  • Creating smart internal tools to speed up debugging
  • Communicating clearly with external developers about what to fix and how

We also work closely with our automated test infrastructure, CI pipelines, and issue tracking systems.

The Team

We’re remote and global, with shared working hours so we can collaborate. We’re independent but aligned — each developer owns their work, asks questions, and improves the system as they go.

Compatibility engineers are not just bug fixers. They are product-minded developers who look for patterns, suggest improvements, and help define how multilingual compatibility should work across the ecosystem.

PHP
MySQL
JS
WordPress internals

How We Work

01

Daily syncs with clear priorities and blockers

02

Well-defined sprints with achievable goals

03

No “throw it over the wall” testing — we write code that works and test it ourselves

04

Transparency in issue tracking and communication

05

Collaboration across teams

We rely on good engineering practices, shared responsibility, and constant learning.

Sound Like You?

If you’re a developer who likes solving real problems, digging into unfamiliar systems, and making things work across the web — we’d love to hear from you.

Apply today