Cybersecurity Senior Python Developer

At the end of this thrilling journey, you'll become a proud member of Hack The Box, with the ultimate mission to help redefine cybersecurity expertise. Get ready for an exciting adventure into the world of cybersecurity!
✨The core mission of the Senior Python Engineer:
The Senior Software Engineer will be the newest addition to the software & data engineering team, working on the latest HTB products, They will be responsible for writing the back end code and executing the roadmap of the platform. They will also have the opportunity to build projects from scratch, while maintaining the existing product. It is expected to follow the best practices in software development, while familiarizing with HTB practices.
Fully Remote / Hybrid (2 days in the office, 3 days remote, plus one month of work from anywhere) - If only in Greece: When hiring in Greece, we’re open to candidates from all locations. Those based within 55 km of our Athens office will follow a hybrid work model. For candidates located beyond that radius, a fully remote arrangement is available.
The Software Engineer will join our software & data engineering team, the driving force behind Hack. You'll collaborate closely with AI Engineers, Data Engineers, and cross-functional partners across SRE and Product.
Our wider AI organization spans Analytics, Data Engineering, and AI teams, and has already delivered industry-first innovations, including the cybersecurity sector's first MCP server and our AI Range platform for training autonomous agents.
The Research & Development organization, encompassing Analytics, Data Engineering, and specialized development teams, is a leader in innovation. Our contributions include industry firsts, such as the cybersecurity sector's initial MCP server and our specialized platform, designed for advanced technical training.
Python, Django, FastAPI, RESTful, Kafka, PostgreSQL, Elasticsearch, Kubernetes, Terraform

The adventures that await you after becoming Senior Python Engineer at Hack The Box:
Lead greenfield projects, designing and building backend systems from scratch with scalability and reliability in mind
Own backend architecture and technical design, making informed decisions to support long-term growth and stability
Develop and maintain REST APIs using modern frameworks like Django, FastAPI, or similar, and manage data storage and retrieval across multiple systems
Implement and maintain CI/CD pipelines, participate in system monitoring, performance tuning, production support, and contribute to internal documentation and knowledge sharing
Skills, knowledge, and experience points required to unlock the role of Senior Python Engineer at Hack The Box:

• 5+ years of professional software engineering experience, with a strong focus on backend systems and production ownership
• Strong proficiency in Python with hands-on experience building services using FastAPI

~ Bonus points:
Experience in high-growth or startup environments

• You'll have the exhilarating opportunity to contribute to a product that is highly appreciated by users and the cybersecurity community at large.
• Just wait until you see our global meet-ups!

The gems you’ll be enjoying as Senior Python Engineer:

• Private health care
• 120€ Ticket Restaurant by Edenred
• Dedicated budget for training and professional development, participation in conferences
• Flexible WFH (Hybrid Model) - Fully Remote is also an option if you're not an Attica resident
• Annual childcare allowance to support daycare expenses for parents

~ Note after Benefits:
Our benefits package is designed to provide strong support to our team, but it may vary depending on location and type of employment (e.g., The Quest of Becoming Hack The Box’s Senior Python Engineer:
Part of the assignment is discussing it with the hiring team in a debriefing session, in order to walk the team through your thinking process.
Join us in this epic adventure of cybersecurity at Hack The Box!
Whether or not you consider yourself a gamer, we value what makes you unique and want to know more about you. This job post provides just a glimpse of the incredible gamified experience our business and consumer customers enjoy through our platforms. Hack The Box (HTB) is the cybersecurity upskilling and talent development platform trusted by individuals, enterprises, and government agencies to sharpen offensive and defensive capabilities. Powered by a vibrant global community and hands‑on, real‑world training, HTB helps security teams practice like attackers, validate skills continuously, and move faster against emerging threats. Furthermore, Hack The Box’s Greek entity has been listed by the Great Place to Work Institute in the Top 5 of Best Workplaces for three consecutive years (4nd, 2nd, 3rd)
On the European level, the Greek entity has been listed as Best Workplace in Europe for three consecutive years
Take a sneak peek at how it is to be part of HTB and our 2023 Global Retreat . We believe that diversity enriches our performance, services, and the communities we serve. We are dedicated to providing a fair and respectful work environment that reflects our values.