Senior Security Engineer – R&D, Secure Systems Engineering

Nortal

. Lead security engineering activities for complex systems, platforms, and R&D project components .

Posted 9/17/2026full-timeRemote • EstoniaSeniorWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates extensive hands-on experience in Cyber Security and Secure Systems Engineering, with a strong focus on designing and implementing security controls across complex systems and cloud environments. Proficient in threat modeling, security risk analysis, and providing technical guidance to engineering teams.

Highest-signal resume keywords

Cyber SecuritySecurity Controls ImplementationThreat ModelingVulnerability ManagementCloud Security

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

Security ArchitecturePenetration TestingSecurity Risk AnalysisSystem HardeningTechnical Security Design

Soft Skills

Technical GuidanceMentoring

Tools & Technologies

DevSecOpsPKICryptographyVirtualizationContainers

Certifications & Qualifications

CISSPOSCPGIAC

Industry Keywords

Network SecurityInfrastructure SecurityOperating System SecurityApplication SecurityData Security

Tech Stack

Tools & technologies

CloudCyber SecurityDistributed Systems

About the role

Key responsibilities & impact

Lead security engineering activities for complex systems, platforms, and R&D project components
Translate security architecture, requirements, and threat models into implementable technical controls
Design and implement security mechanisms across networks, operating systems, applications, and cloud environments
Perform threat modelling, security risk analysis, hardening, and penetration testing
Review system designs and configurations from a security perspective
Lead resolution of complex security findings and support root-cause analysis
Provide technical guidance and mentoring to engineers
Author and co-author technical security content for R&D deliverables and reports
Deliver implemented and validated security controls and configurations
Produce threat models, assessments, validation reports, technical security designs, hardening documentation, security architectures, and R&D deliverable sections

Requirements

What you’ll need

Extensive hands-on experience in cyber security or secure systems engineering
Strong knowledge of network, infrastructure, operating-system, application, and data security
Experience designing and implementing security controls in complex or distributed systems
Practical experience with security testing, vulnerability management, and hardening
Understanding of cloud, virtualisation, containers, DevSecOps, PKI, and cryptography
Experience leading technical security workstreams or mentoring engineers
Willingness to complete a government security clearance process
CISSP, OSCP, GIAC, or cloud security certifications are a plus

Benefits

Comp & perks

Flexible package for health insurance
Sports initiatives
Flexible working hours
Choice to work from the office or remotely within Estonia
Support for constant improvement and knowledge sharing
Good humor and value-driven workplace culture