Senior PHP Engineer

Hack The Box is the leading cyber readiness platform for the agentic era, battle-testing and upskilling both humans and AI agents to enhance organizational cyber resilience. Trusted by the Fortune 500, government agencies, and MSSPs, the platform delivers threat-informed learning paths consisting of real-world scenarios in gamified labs and live-fire simulations that build and validate offensive and defensive cyber capabilities. With a loyal community of more than 4 million members and 800+ enterprise customers, Hack The Box empowers teams and intelligent systems alike to strengthen cyber defenses and reduce breach risk effectively. Delivering continuous learning alongside industry-recognized certifications and certificate programs aligned with major workforce frameworks such as ENISA ECSF and NIST NICE, Hack The Box demonstrates external validation through recognized accreditation and role-based qualification recognition, including its ANAB-accredited HTB Defense Operations Analyst (DOA) certificate program and HTB CPTS, accepted for FedRAMP 3PAO penetration tester personnel. Rapidly growing its international footprint and reach, Hack The Box is headquartered in the UK, with additional offices in the US, Australia, and Greece. 🎉 Exciting News: We’re incredibly proud to share that our headquarters in the UK, along with our entities in Greece and the US, have been certified as a Great Place to Work for 4 consecutive years (2023 - 2026). In addition, our Greek entity has been recognized among the Best Workplaces in Greece (4th, 2nd, 3rd) and Europe (7th, 10th, 73rd) during this period — a testament to our strong culture and commitment to creating an exceptional employee experience! Meet the humans behind the screens | Working @ Hack The Box Department: R&D Industry: Information Technology and Services Employment type: Full-time Experience: Mid-Senior level Remote role listed by employer.