Senior PHP Developer

About SINGU At SINGU, we’re redefining how the world’s most ambitious real estate companies run their operations. Our mission is to become Europe’s leading platform for managing warehouse, logistics, retail, and multi-site commercial real estate portfolios — empowering our Clients to protect revenue, boost efficiency, and unlock new value across every aspect of their business.   Our unified CAFM platform already powers the daily operations of over 250 million m² of real estate worldwide, supporting more than 500,000 professionals. Following our union with the UK’s Micad and Germany’s net-haus, we now help manage 100,000+ buildings across 35+ countries — and we’re just getting started.  Backed by a leading growth equity investor, we’re scaling rapidly and partnering with global leaders such as Prologis, ECE, CTP, Hillwood, Logicor, GLP, and Unibail-Rodamco-Westfield. As we continue to grow through strategic acquisitions and bold innovation, we stay true to our core values: adaptability, collaboration, and client focus.   If you’re ready to help build Europe’s leading platform for property operations — and make a tangible impact on how the real estate industry works — join SINGU and be part of this transformation. We're looking for a Senior PHP Developer to join the Technical Account Management team, responsible for delivering customizations and dedicated functionalities for large enterprise clients, often international. The team focuses on adapting existing modules or building custom solutions tailored to specific customer needs. A significant part of the work involves data imports and system integrations, where security, data correctness, and database performance are critical. This is a hybrid position based in Kraków – 2-3 days per week from the office. Tech Stack Backend: PHP (Phalcon framework)Database: PostgreSQL Architecture: REST APIs, data-heavy integrations Frontend: React What You'll Bring To The Team Must-haves: • Strong commercial experience in PHP backend development (5+ years) • Expert-level knowledge of relational databases, especially PostgreSQL – query optimization, indexing, execution plans • Proven experience in designing and implementing REST APIs • Experience building and maintaining data import pipelines and external system integrations • High attention to application security (secure coding practices, input validation, data protection) • Strong focus on performance and scalability, especially for database-heavy and high volume operations • Ability to take full ownership of delivered solutions – from design to deployment • Fluent English and Polish to ensure smooth communications with team colleagues and clients Nice-to-haves: • Familiarity with React • Experience with the Phalcon framework • Experience with PostgreSQL performance tuning • Knowledge of Docker and containerized development environments • Background in customization-heavy or enterprise systems • Experience working in a product-oriented organization What We Offer 💰Competitive Salary Range - Depending on your experience, we offer between 19'000 - 22'000 PLN net on a B2B contract, or between 15'770 – 18'260 PLN gross on Contract of Employment. 🤝 A fantastic, engaged, and experienced team – Collaborate with passionate people who love what they do. 🎯 An environment open to innovation – We embrace creativity and new ideas in a dynamic setting. 🏡 A family-like atmosphere with a "you" culture – in a company that values "we". 📚 Annual budget for training & education – Invest in yourself with a dedicated budget for learning & development—no need to take a day off, it’s included in your working hours!  🕘 Flexible working hours – Work the way that suits you best. 🩺 Private healthcare (including dental & vision care) – Your well-being is important to us. 📆 Extra day off for medical check-ups – Because your health comes first. 🌍 Annual team offsite – Spend time with the team in a beautiful location. 🍏 Top-notch Apple equipment – The best tools to do your best work. 🥐 Monthly themed breakfasts – Start your day with great food & company 🎁 Referral Program – Get rewarded for bringing great people on board.