OT Security Engineer

Enerjisa Üretim; Ataşehir; Hybrid; TRY 300,000 - 400,000; Full time

Job summary

A leading energy company is looking for a Security Engineer to join their team in Istanbul. In this role, you will develop and implement security architectures, perform risk assessments, and monitor for threats in OT environments. Ideal candidates have at least 8 years of experience, a degree in Computer Science, and strong skills in cybersecurity. The position offers a hybrid working model and numerous benefits including training opportunities, flexible benefits, and health services.

Benefits

Flexible Benefits

Hybrid Working Model

Child & Pet-Friendly Policies

Private Health and Life Insurance

Social Activity Clubs

Qualifications

• Minimum 8 years of professional experience in cybersecurity.
• Strong knowledge of ICS/OT networks, protocols, and Purdue Model concepts.
• Hands-on experience with OT security technologies.

Responsibilities

• Develop and implement security architectures aligned with best practices.
• Perform vulnerability management and risk assessments for OT systems.
• Monitor and detect anomalies and attacks using security solutions.

Skills

Cybersecurity analysis

OT/ICS security

Risk management

Team collaboration

Problem-solving

English proficiency

Education

Bachelor’s or Master’s degree in Computer Science

Tools

SIEM

IDS/IPS

Firewalls

Endpoint protection

Job description

We are looking for a Security Engineer to join our team in İstanbul Ataşehir Head Office.

At Enerjisa Üretim, nature and people are our true sources of energy. Every step we take moves us closer to a more sustainable future. As our operations expand across the globe, we continue to create value that goes beyond borders.

58% of our energy portfolio comes from renewable sources — and we’re already shaping tomorrow’s energy, starting today.

People are at the heart of everything we do. Our growth is driven by a deep commitment and enriched by the diverse voices that make us who we are.

We believe true transformation begins together.

Ready to be part of the change? Join us — because the future changes with us.

Key Responsibilities

• Develop and implement security architectures aligned with industry best practices and organizational objectives for OT/ICS environments,
• Perform vulnerability management, risk assessments, and threat modeling for OT systems and networks,
• Identify, assess, and prioritize security risks, and design mitigation strategies and solutions,
• Monitor and detect anomalies, intrusions, and attacks using SIEM, IDS/IPS, and OT security solutions (e.g., Claroty, Nozomi, etc),
• Design, implement, and maintain OT-specific security controls across industrial environments,
• Conduct Incident Response (IR) and Root Cause Analysis (RCA) within OT/ICS environments,
• Support & Execute penetration tests and red team engagements focused on OT systems,
• Ensure compliance with relevant security standards, regulations, and policies (IEC 62443, NIST, ISO 27001/27019, EPDK Cyber Security Maturity Model, etc.),
• Collaborate with IT, OT, and business teams to promote a culture of cybersecurity awareness across the organization,
• Coordinate and enforce security requirements with third-party vendors and system integrators,
• Stay informed of the latest threats, vulnerabilities, and security technologies relevant to OT/ICS security.

Qualifications

• Bachelor’s or Master’s degree in Computer Science, Cyber Security, or related disciplines,
• Minimum 8 years of professional experience in cyber security, with focus on OT security engineering and/or architecture,
• Strong knowledge of ICS/OT networks, protocols, and Purdue Model concepts,
• Proficiency in ICS risk management and security architecture design,
• Solid understanding of vulnerabilities (application/infrastructure within OT), testing techniques (manual & automated), and remediation methods,
• Hands-on experience with OT security technologies: firewalls, SIEM, IDS/IPS, endpoint protection, vulnerability management, and network segmentation,
• Proven ability to produce high-quality security documentation: reports, process designs, procedures, training materials,
• Proficiency in English is a must,
• Strong problem-solving skills, proactive and analytical mindset, motivated self-starter,
• Team-oriented with the ability to work collaboratively across IT, OT, and business stakeholders,
• GICSP, GRID, GPEN, CISSP, OSCP, IEC 62443 Cybersecurity certifications are a big plus.

What Awaits You at Enerjisa Üretim?

• Hybrid Working Model
• Master’s Degree Support
• Flexible Benefits (With our "Sana Göre" program, you can customize your benefits based on your individual needs and preferences)
• Child&Pet-Friendly Policies
• Collective&Special Leave Options
• Learning&Development Programs and LinkedIn Learning Membership
• Power MBA Development Program (In collaboration with Sabancı University Executive Development Unit – offering training opportunities in energy markets, generation technologies, data analytics, strategy, finance, and more)
• Social Activity Clubs (Sports, arts, travel, gastronomy)
• Healthy Living Services (Fitness trainers, dietitian support, and wellness programs)
• Parent Support Program (Includes support from nurses, dietitians, psychologists, and coaches from pregnancy through postpartum)
• Private Pension Plan (with company Contributions)
• Private Health and Life Insurance
• Sabancı Life Privileges (Exclusive offers in shopping, travel, technology, wellness, and more)

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