Principal PHP Developer (f/m/x)

Permanent employee, Full-time · Hamburg (Hybrid)

Your tasks

As a Principal PHP Developer (f/m/x), you would extend our PHP backend systems and APIs, building, enhancing, and extending our backend API according to current stability, performance, scalability, security, and maintainability standards. You will directly work with marketing and other stakeholders to integrate new partner APIs and tracking systems into our user backend. You can also contribute by implementing new features to our Javascript/HTML tools and services.

  • Lead architecture improvements and modernization of our core PHP API and backend systems powering our games

  • Drive initiatives to enhance the stability, performance, and scalability of our PHP platform and live game systems

  • Promote and implement security, testing, and development best practices

  • Contribute high-quality, maintainable PHP code using a wide range of technologies like Composer, Sentry, Sonar, PHPUnit, Github, Docker, MySQL, Memcache, Redis, Jenkins, Grafana, Kibana, Nexus, and Nginx.

  • Take ownership of important tech KPIs that ensure a smooth gameplay experience.

  • Shape the technical vision and roadmap for our PHP backend.

  • Partner with Marketing, Product, and Game Design to align technical work to business goals

  • Lead integration of new APIs, payment systems, and data tracking

  • Spearhead projects to modernize and professionalize our PHP architecture

  • Mentor and guide developers on your team, instilling best practices

Your profile
  • 7+ years of professional experience in PHP development

  • Deep expertise in PHP 7/8, unit testing, composer, PSRs, and modern PHP frameworks

  • You have worked on multi-server, high-load PHP applications

  • Experience leading complex, high-traffic PHP applications and APIs

  • Passion for writing clean, well-structured, maintainable code using design patterns appropriately

  • Ability to implement and promote best practices for reliability, performance, scalability, security

  • Excellent analytical and problem-solving skills

  • Strong leadership skills; able to influence and mentor teammates

  • Ability to understand business needs and translate them into technical requirements

  • You are fluent in technical and business English; German language skills are a plus

  • You have experience with agile methodologies like Kanban, Scrum

  • You are enthusiastic about games and enjoy working in an interdisciplinary team

  • You are interested in learning outside of the box and also taking over full-stack development tasks

What we offer

Inclusive Culture 

At Bytro, we actively champion diversity, inclusion, and empowerment through our actions and culture. We ensure an environment of equal opportunities for all, celebrating a community where people of all ages, genders, abilities, and orientations are welcomed and valued. Our commitment to diversity is reflected in our team, which includes colleagues from over 30 different countries, fostering a richly multicultural and international workplace.

Office Life

Enjoy flexible work hours for a great work-life balance. We believe in hybrid work: work from our fully equipped office in St. Pauli with home office option. Our office offers you a variety of snacks and beverages and for an affordable commute we subsidize your HVV ticket.
We love dogs - you do too? Bring your furry friend to the office. Just make sure to speak to the other dog parents first to ensure they all get along and there are not too many in each office at the same time. 

Career Growth

Passion drives our work, and we offer tailored growth opportunities for everyone. Our Bytro Career Path offers a structured career model to support your professional goals. In addition, we offer a variety of training and access to professional learning platforms as well as language courses.

More than just colleagues

Work hard, play hard: We genuinely like each other and enjoy spending time together. May it be during After-Work Drinks where we gather to unwind or during Board Game Nights which can get competitive but are always fun - regular events small or big are a huge part of our culture.
About us

“Connect and Challenge Players. Anytime. Anywhere.”

At Bytro, our mission is to develop high-quality strategy games that are accessible to players worldwide. Game development, for us, is a promise of fun and entertainment – it’s what drives us every day.

As a proud member of the Swedish Stillfront Group, we create grand strategy games enjoyed by over 50 million registered players across 150 countries in 13 languages. Our office, located in Hamburg’s iconic St. Pauli district, offers a breathtaking 360° view of the harbor and the Elbe River, with convenient access to public transportation.

Our team is diverse and international, fostering a culture of open communication and flat hierarchies. We support the autonomous work of our agile teams, ensuring each employee contributes meaningfully to our success. We believe in efficient work and collective achievement.

Discover more about Bytro and watch our latest company video:

To enhance our great team we are looking for you!
Your application
Thank you for considering a career at Bytro. Please fill out the following form. In case you are experiencing problems with the document upload, mail your documents to
Uploading document. Please wait.
Please add all mandatory information with a * to send your application.