Software Engineer, Firmware

4 days ago

Budapest, Budapest, Hungary CUJO AI® Full time 60,000 - 120,000 per year

CUJO AI is a leader in artificial intelligence solutions for network service providers. We use
machine learning
and
real-world data
to develop
cybersecurity, device intelligence
, and
parental control solutions
that make internet connections safer for millions of homes.

ABOUT THE ROLE:
We are looking for an experienced
Software Engineer
with a background in native code Linux, network and kernel development to join our high performing fast growing engineering organization in
Budapest, Hungary
. As a firmware engineer at CUJO AI you will work in a team that builds home security solutions for operator home routers (CPE-devices), build test automation systems and ports the software to different Linux based router platforms.

IN THIS ROLE, YOU WILL:

  • Port CUJO AI's solutions on different Linux-based CPE platforms.
  • Build highly optimized software for Linux-based CPE devices.
  • Develop network security, parental control and network device intelligence solutions.
  • Build automation for functional, performance and resilience testing.
  • Assist with test lab infrastructure planning and implementation.

Requirements:

WHAT WE'RE LOOKING FOR:
Must Have:

  • Minimum 5 years of experience in native code Linux development.
  • Detailed knowledge of Linux operating systems architecture.
  • Knowledge of building C applications in Linux.
  • Excellent knowledge of IP-based protocols.
  • Linux network stack knowledge.
  • Knowledge of building POSIX-compliant shell scripts.
  • Proficiency in working with Git and its operations (commit, rebase, submodules).

Good to Have:

  • Knowledge of embedded Linux build systems: OpenWRT, Yocto.
  • Expertise in building firewalls or protocol clients.
  • Familiarity with developing software for embedded systems.
  • Proven track record of build solutions with high stability, performance, security, maintainability, and scalability.

Bonus:

  • Agile software development process experience.
  • Experience in systems monitoring, performance optimization, root cause analysis, and advanced troubleshooting.
  • Experience with CI/CD, TDD, and test automation frameworks.

WHAT WILL MAKE YOU STAND OUT:

  • Good written and verbal communication in English.
  • Ability to search for answers, learn quickly, and communicate effectively.
  • Skill in explaining complex topics in simple ways as well as providing reliable information.
  • A team player who takes pride in producing superior results while contributing to a high-caliber team.

WHY JOIN CUJO AI?

  • Flexible Work – Hybrid or fully remote options based on your location.
  • Team Gatherings – Annual company events and team activities.
  • Career Growth – Training bonuses for AWS certifications and other learning opportunities.
  • Performance Bonuses – Company-wide annual bonus program.
  • Referral Rewards – Earn up to €1,000 for referring new hires.

At
CUJO AI
, we value innovation, collaboration, and continuous improvement. Join us and work on technology that makes the internet safer


Apply by October 26, 2025
– but don't wait We'll hire as soon as we find the right person.

Apply via our recruitment portal. Questions? Email us

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