Senior Back-end Engineer - PHP, Node.js

Accountabilities

• Design, develop, test, and ship high-quality backend solutions that are scalable, reliable, maintainable, and aligned with product goals.


• Work primarily with PHP or Node.js while developing the flexibility and expertise to contribute across both backend ecosystems.


• Design and improve high-load architectures using distributed systems principles, Domain-Driven Design, CQRS, and modern software engineering practices.


• Collaborate closely with Product Managers, stakeholders, and fellow engineers to translate business requirements into effective technical solutions.


• Take end-to-end ownership of technical initiatives, from solution design and prioritization through implementation, testing, deployment, and continuous improvement.


• Identify technical debt, performance bottlenecks, bugs, and opportunities for platform improvements, prioritizing work according to business and user impact.


• Contribute to engineering quality through code reviews, refactoring, unit testing, pair programming, and continuous integration and deployment.


• Troubleshoot complex issues, optimize application performance, and help maintain reliable production systems.


• Participate in knowledge-sharing sessions, technical discussions, and mentoring opportunities while continuously improving engineering practices.


• Use AI-assisted development tools and LLMs effectively for architectural exploration, implementation, testing, debugging, documentation, and code quality.

Requirements

• 5+ years of professional backend software development experience with strong proficiency in PHP or Node.js and a willingness to learn and work with the other technology.


• Strong experience designing and developing high-load systems, distributed architectures, Domain-Driven Design (DDD), and CQRS.


• Solid understanding of software engineering principles and best practices, including SOLID, Test-Driven Development (TDD), CI/CD, and Agile methodologies.


• Hands-on experience with backend technologies such as PHP 8.1+, Symfony, Laravel, Yii2, Doctrine, or comparable frameworks and libraries.


• Experience working with databases and infrastructure technologies such as MySQL, PostgreSQL, MongoDB, Redis, AWS, Kubernetes, and Docker.


• Strong debugging, testing, performance optimization, and problem-solving skills.


• Product-minded approach, with the ability to prioritize technical work according to business value and user impact rather than technical preference alone.


• Strong sense of ownership, initiative, and accountability, with the ability to work independently in a fast-changing environment.


• Good spoken and written English communication skills.


• Practical experience using LLMs and coding assistants such as Claude or GitHub Copilot to improve development workflows is expected.


• Strong collaboration skills and willingness to contribute through code reviews, pair programming, knowledge sharing, and cross-functional teamwork.

• Fully remote work within eligible EMEA locations, with the option to work from a modern office environment where available.


• Flexible working hours, allowing you to structure your day around your work and personal commitments.


• Private health insurance.


• Two additional paid days off dedicated to mental or physical wellbeing.


• One additional paid day off for your birthday or another personal celebration of your choice.


• Access to internal and external learning and professional development opportunities.


• Mentorship, technical meetups, hackathons, and knowledge-sharing initiatives.


• Healthy lunch provided when working from the office.


• Employee merchandise opportunities and discounts.


• Team-building activities, company events, and social gatherings.


• Opportunity to work within a global, inclusive, and ambitious engineering organization focused on delivering meaningful commerce solutions.

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