Job Description & How to Apply Below
Cyber Security Engineer (Mid-Level)
About Threye
Threye is a deep-tech startup working in the defense and simulation space, building high-fidelity systems using game engines, geospatial data, and secure infrastructure. Much of our stack is hosted on-premise due to the sensitive nature of our work, with controlled exposure to external networks.
Role Overview
We are looking for a Cyber Security Engineer (3–6 years’ experience) who can take ownership of securing a hybrid environment that is primarily on-premise , with selective external exposure.
This is not a purely policy/compliance role — you will be expected to design, implement, and operate real security systems , working closely with infrastructure, networking, and development teams.
Key Responsibilities
Infrastructure & Network Security
Secure and manage on-premise infrastructure (servers, firewalls, internal services)
Configure and monitor firewalls, VPNs, and network segmentation
Design secure access controls for internal tools (Git, project management, storage, etc.)
Harden Linux/Windows systems and enforce baseline configurations
Threat Detection & Monitoring
Deploy and manage SIEM / EDR solutions (e.g., Wazuh, OSSEC, etc.)
Monitor logs, detect anomalies, and respond to incidents
Reduce noise and improve signal quality in alerts (tuning rules, filtering)
Application & Dev Security
Work with dev teams to secure APIs and external endpoints
Conduct vulnerability assessments and basic penetration testing
Review authentication, authorization, and secrets management practices
Endpoint & Identity Security
Manage endpoint security (laptops, workstations)
Implement device control, patching, and MDM (if applicable)
Strengthen identity systems (SSO, MFA, role-based access)
Incident Response
Investigate security events and lead response actions
Build incident response playbooks
Perform root cause analysis and recommend fixes
Compliance & Best Practices
Implement security practices aligned with defense sector expectations
Maintain documentation for audits and internal processes
Balance security with usability in a fast-moving startup environment
Required Skills & Experience
3–6 years in cybersecurity / network security / system security roles
Strong understanding of:
Networking fundamentals (TCP/IP, routing, firewalls, VPNs)
Linux systems and basic Windows administration
Hands-on experience with:
Firewalls (Fortinet, pf Sense, etc.)
SIEM/log monitoring tools (Wazuh, ELK, Splunk, etc.)
Vulnerability scanning tools
Familiarity with:
On-premise deployments and air-gapped environments
Identity and access management (IAM, RBAC, MFA)
Basic scripting (Python/Bash) for automation
What We’re Looking For
Someone who actually builds and fixes systems , not just audits them
Strong problem-solving mindset — able to deal with imperfect, evolving infra
Ability to work in a low-trust, high-sensitivity environment
Comfortable making trade-offs between security and productivity
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