Principal Software Engineer developing scalable backend systems for Walmart's Digital Out of Home platform. Leading architecture, mentoring engineers, and guiding technical direction across thousands of retail locations.
About the role
- Staff Software Engineer developing backend solutions within the AI team at Hack The Box. Contributions impact the development of innovative AI-driven cybersecurity products.
Responsibilities
- Design, develop, maintain, and evolve backend services for Range, including ownership of existing systems and delivery of new features
- 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, and manage data storage and retrieval across multiple systems
- Collaborate closely with Product Managers to translate product requirements into well-designed technical solutions, and act as the go-to person for platform integrations
- Implement and maintain CI/CD pipelines, participate in system monitoring, performance tuning, production support, and contribute to internal documentation and knowledge sharing
Requirements
- 5+ years of professional software engineering experience, with a strong focus on backend systems and production ownership
- Strong proficiency in Python and/or Elixir, with hands-on experience building services using FastAPI and/or Phoenix
- Proven experience designing and operating backend systems, including REST APIs, PostgreSQL, Elasticsearch, and event-driven architectures (Kafka or similar)
- Deep understanding of backend architecture, scalability, and distributed systems, with the ability to design systems end-to-end
- Production experience with CI/CD and cloud-native infrastructure, including Kubernetes and Terraform
- Bonus points:
- Experience with ClickHouse
- Familiarity with MCP
- Exposure to AI and related technologies
- Experience in high-growth or startup environments
Benefits
- Private health care
- Paid paternity leave
- 25 annual leave days
- Free lunch & snacks at the office
- Access to on-site gym and a variety of group activities including Cross Training, Pilates, Boxing and Climbing
- 120€ Ticket Restaurant by Edenred
- Dedicated budget for training and professional development, participation in conferences
- Full access to the Hack The Box lab offerings; so you can learn how to hack 😉
- State-of-the-art equipment (mac, iPhone, and mobile plan)
- 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
Job title
Job type
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Degree requirement
Tech skills
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JA
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