Senior Security Engineer

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 a Senior Security Engineer to join our team in Lithuania.

The core focus of this role is to help identify gaps in the CUJO AI Security Platform and provide a path to remediation through research, investigation, and proof of concept (POC) development.

The compensation package is from 3000 EUR to 5000 EUR (gross), depending on your experience.

In This Role, You Will:

• Identify gaps in the CUJO AI Security Platform and drive remediation through research, investigation, and proof-of-concept development.
• Design and build rapid prototypes, honeypots, and research infrastructure to analyze emerging threats and attack campaigns.
• Develop situational intelligence briefs, attack analysis tools, and detection rules in collaboration with machine learning and security teams.
• Enhance security testing strategies and contribute research content to public venues.
• Monitor threats and attack patterns using SIEM tools, supporting continuous improvement of the platform’s detection and response capabilities.

What We’re Looking For:

• Proficiency in one or more scripting languages.
• Experience in developing research infrastructure and tools in Python.
• Low-level understanding of security principles, theories and attacks.
• Ability to work autonomously in a less structured start-up type environment.
• Ability to efficiently collaborate with cross-functional teams.
• Strong team player with a can-do attitude and a drive to take ownership and initiative.
• Security Operations (SOC) and hands on experience with Incident Response (IR) is a plus.

What Will Make You Stand Out:

• Bachelors/Masters/PhD in Computer Science/Engineering/Security with the Tactics, Techniques, and Procedures (TTPs) of malicious actors.
• 10+ years expertise in real attack scenarios including phishing and spam campaigns, vulnerability exploitation, and botnets.
• Ability to research, author, and present technical security concepts.

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 May 31, 2025 – but don’t wait! We’ll hire as soon as we find the right person.

📩 Apply via our recruitment portal. Questions? Email us at [email protected].