Senior/Middle PHP Developer

Who are we?

Flying Bisons is a leading Digital Consulting & Delivery company based in the heart of Europe, Warsaw. Our mission is to help our clients to Unleash Digital Potential™. We discover, define, design, and develop world-class digital products that drive business results for our clients, shaping digital experiences for millions of people around the world.

We stand out due to our end-to-end process that allows us to approach each and every challenge with confidence that we can deliver the best results. Our expertise includes Research, Digital Strategy, Branding, Content (Written, Photos, Videos), Product Design, Web & Mobile Development, Data Analytics & AI.

Join our 120-people team to co-create industry-defining products and heart-racing experiences for the biggest brands (Mercedes AMG, IKEA, KFC, eObuwie, Żabka, Sanofi, Zain) and disruptive startups (like Booksy, Nethone, Telemedi, or DevSkiller)!

We are looking for an experienced Mid or Senior Developer to join our team in building a modern API for an eCommerce platform. You will be responsible for designing, developing, and maintaining high-quality backend services using Symfony and PHP, with a strong focus on modular service architecture and seamless API integration. The solution must be scalable and capable of handling high traffic.

Your Role & Responsibilities:

• Develop RESTful APIs services
• Design services following the principles of bounded contexts
• Develop high-level solutions using hexagonal architecture within a modular-monolith structure
• Create and maintain API documentation
• Quality check (Code Review)
• Optimize applications for performance and scalability
• Cooperation with the QA, Frontend, UI&UX teams
• Taking care of application security, from design to implementation
• Write automated tests to ensure the reliability and quality

Your Profile & Skills Required:

• You have 4+ years of experience in web development
• You have proven expertise in developing RESTful APIs
• You can optimize services for performance and scalability
• You possess a strong understanding of business needs and technical solutions
• You have knowledge of databases (e.g., MongoDB, PostgreSQL)
• You have experience with message queues (e.g., AMQP, SQS)
• You’re adept at implementing and using cache systems
• You know PHP and the Symfony framework thoroughly
• You’re skilled in PHPUnit
• You can create clear, effective documentation using Swagger and OpenAPI
• You have practical experience with Docker and containerization
• You’re comfortable with static analysis tools for code quality
• You apply architectural principles like SOLID, KISS, DRY, and other best practices
• You have a solid understanding of Unix systems
• Good command of English (B2+) and Polish

Nice to have:

• Familiarity with cloud platforms (GCP)
• Domain-Driven Design and CQRS
• CI / CD experience
• OneTrust, Synerise integrations

What do we offer?

🤝 B2B contract

💰 11 000 - 20 000 PLN NET + VAT

🌍 Flexible work mode (100% remote, office or mix)

💚 7-hours working day (+1 hour break)

⛱ 24 days (+national holidays) of paid leave

🍀 Private healthcare (Enel-Med)

⚽ Co-financing for a Multisport card

🏢 Possibility to work from our modern office (WeWork Mennica Legacy Tower)

🇬🇧 English and Arabic lessons

👨‍💻 Apple equipment (MacBook)

👨‍🎓 Regular Knowledge Sharing meetups & workshops

📚 Access to our educational library

🎉 Team meetups and parties