Senior PHP Engineer

Hack The Box; Berlin; Hybrid; EUR 60,000 - 80,000; Full time

Benefits offered by this job

Private health care

Paid paternity leave

25 annual leave days

Free lunch & snacks at office

120€ Ticket Restaurant by Edenred

Dedicated budget for training and professional development

Full access to Hack The Box lab offerings

State-of-the-art equipment

Flexible working from home options

Annual childcare allowance

Access to on-site gym and group activities

Job summary

Hack The Box is looking for a Senior PHP Engineer to work on their platforms, enhancing features and tools using the Laravel PHP Framework. The role requires proven experience in Object Oriented Programming and an understanding of HTTP and unit testing frameworks. Benefits include private healthcare, paid paternity leave, and flexible working options. Applicants can work fully remote if not located in Greece, or hybrid if close to the Athens office, making it an exciting opportunity in a dynamic tech environment.

Qualifications

• Proven professional experience with Object Oriented Programming (OOP).
• Experience with Laravel, Symfony, Springboot or other MVC frameworks.
• Deep understanding of HTTP.
• Strong knowledge of relational databases.
• Experience with unit testing frameworks such as PHPUnit.
• Good understanding of SOLID principles and software design patterns.
• Self-starter able to work independently and in a team.

Responsibilities

• Develop new features and tools using the Laravel PHP Framework.
• Generate clean, safe, reusable and scalable PHP code.
• Create and maintain RESTful APIs.
• Contribute to architectural and software design decisions.
• Perform code reviews.
• Maintain the platform by reacting to issues and defects.

Skills

Object Oriented Programming (OOP)

Laravel

RESTful API

PHPUnit

Relational databases

SOLID principles

Analytical mind

Problem-solving

Cyber security mindset

Tools

PHP

Laravel

JIRA

SQL

Docker

GitHub

Job description

Senior PHP Engineer – Hack The Box

Work on one of our HTB platforms, HTB Business, responsible for upskilling organizations across the globe. In this role you will enhance the platform and develop new features.

Location & Work Mode

• Europe/Greece – Fully remote or hybrid (2 days in office, 3 days remote) or relocation support to Athens Tech Hub.
• Remote across Europe or fully remote from anywhere if not in Greece.
• If within 55 km of Athens office, hybrid model; beyond that, fully remote.

Relocation

• 10% relocation bonus on annual salary.
• 50% tax reduction on income as part of relocation.
• Support with accommodation during first few weeks.

Tools & Technologies

• PHP, Laravel
• JIRA, SQL, Docker, GitHub

Responsibilities

• Develop new features and tools using the Laravel PHP Framework.
• Generate clean, safe, reusable and scalable PHP code.
• Create and maintain RESTful APIs.
• Contribute to architectural and software design decisions.
• Contribute and maintain technical documentation and specifications.
• Perform code reviews.
• Maintain the platform by reacting to issues and defects raised.
• Collaborate with frontend developers using Vue.js to integrate user-facing elements with server-side logic.
• Stay up-to-date on emerging technologies.

Qualifications & Skills

• Proven professional experience with Object Oriented Programming (OOP).
• Experience with Laravel, Symfony, Springboot or other MVC frameworks.
• Experience with applications providing a RESTful API.
• Deep understanding of HTTP.
• Strong knowledge of relational databases.
• Experience with unit testing frameworks such as PHPUnit.
• Good understanding of SOLID principles and software design patterns.
• Analytical mind with problem‑solving aptitude.
• Self‑starter, ability to work independently and as part of a team.
• Cyber security‑mindful mindset is a strong plus.

Benefits

• Private health care.
• Paid paternity leave.
• 25 annual leave days.
• Free lunch & snacks at office.
• 120€ Ticket Restaurant by Edenred.
• Dedicated budget for training and professional development, participation in conferences.
• Full access to the Hack The Box lab offerings.
• State‑of‑the‑art equipment (Mac, iPhone, mobile plan).
• Flexible WFH (Hybrid Model) – Fully remote option if not an Attica resident.
• Annual childcare allowance to support daycare expenses for parents.
• Access to on‑site gym and group activities.

Equal Opportunity Employer

At Hack The Box, we are committed to fostering a diverse, inclusive, and equitable workplace. We believe that diversity enriches our performance, services, and the communities we serve. As such, we ensure that all job applications are considered solely based on merit, skills, and qualifications. We do not discriminate on grounds of race, color, religion, gender, gender identity or expression, sexual orientation, national origin, genetics, disability, age, or veteran status. We are dedicated to providing a fair and respectful work environment that reflects our values.