Senior Backend Engineer (PHP)

Reward Gateway, part of Edenred, is a global leader in benefits and employee engagement. We help businesses attract, engage, and retain top talent through strategic reward, recognition, and well-being solutions.

Guided by our shared missions - ‘Making the World a Better Place to Work’ and ‘Enriching Connections, For Good’ - we’re committed to transforming workplaces and improving people’s daily lives.

Our team embodies entrepreneurial spirit, innovation, and respect. We push boundaries, speak up, and stay human, fostering a culture where imagination thrives.

Wellbeing and benefits: We believe people perform at their best when they feel supported both professionally and personally. Our benefits have been designed around five core principles: Fairness, Choice, Balance, Wow and Easy. Benefits vary by country and location and are regularly reviewed to meet the needs of our people.

Find out more about our rewards, benefits and wellbeing offering here .

Location & Contract Type: This is a hybrid role that would require presence in our Sofia or Plovdiv office at least twice per week, as agreed.

What You’ll be Doing: • Interpret, define, and develop software solutions based on written requirements and technical specifications. • Identify opportunities for improvement in existing products and implement enhancements across the platform. • Troubleshoot, test, and maintain core applications and databases to ensure performance, reliability, and scalability. • Collaborate with QA to define acceptance criteria and assist with debugging and issue resolution. • Contribute to the creation and upkeep of comprehensive technical documentation. • Write clean, maintainable, and well-structured code that adheres to established coding standards and best practices. • Work effectively within globally distributed, cross-functional teams. • Participate in mentoring, coaching, and knowledge-sharing initiatives to support team development.

The Experience and Key Skills you will have: • Proven experience in backend web application development, with strong proficiency in PHP 8+ and MySQL. • Solid understanding of OOP principles, SOLID, and modern software engineering best practices. • Proven experience applying design patterns to build maintainable and scalable solutions. • Hands-on experience with Unit and Integration testing (e.g., PHPUnit, Pest). • Strong working knowledge of SQL, RESTful APIs, and GraphQL. • Ability to leverage AI‑assisted development tools to improve productivity, code quality, and documentation. • Excellent English communication skills and the ability to collaborate effectively within cross-functional, globally distributed teams. • Comfortable working in environments that follow strong Agile practices, including iterative development, continuous improvement, and close collaboration with product