IT Security Officer -Electrical Systems - LON-ES-ES 40u/w
Volgnummer: 117044
Publicatiedatum: 25-02-2026
Locatie: ARNHEM
Standplaats: ARNHEM
Duur: zsm - 30-09-2026
Optie tot verlenging: Ja
Reageren voor: 25-02-2026
Technical Specialist Cyber Security
Introduction At TenneT, we are working on the electricity grid of tomorrow. As a Technical Specialist Cyber Security, you play a crucial role in realizing a future-proof energy supply. From your specialism, you make a direct contribution to projects that keep the Netherlands going – today and tomorrow.
About TenneT and the unit: TenneT is growing fast to realize its strategic ambitions. We play a leading role in driving the energy transition. We are looking for a passionate Technical Specialist Cybersecurity with affinity for Physical Security at our location in Arnhem who will contribute to this and that might be you! The business unit Large Projects Offshore Netherlands (LON) connects, via innovative HVDC (high voltage direct current) platforms and converter stations, windfarms at the Northsea to the grid on the mainland. An enormous amount of renewable energy has to be connected within the next 10 years. Not only connections to the grid near the coast, but even deeper inland grid connection systems will be planned. Our challenge: Connecting up to 35GW of offshore wind energy in 2035 is a challenging task for TenneT as the designated Transmissing System Operator (both onshore and offshore) in the Netherlands. To meet this challenge TenneT has developed the 2GW-Program within LON. With cutting edge technology like 525kV HVDC TenneT is leading the offshore development. The department of Engineering & Services within LON provides the necessary technological expertise to the 2GW-Program and the various projects.
Your contribution to TenneT You will support our offshore projects with your OT / IACS technical cyber security and physical security expertise. In different regions in the Netherlands multiple grid connection systems will be build, together with our consortia.
Your main tasks and responsibilities are:
•
• Towards the offshore projects that have to operationalize and implement TenneT’s security requirements, and as interface towards internal stakeholders that develop and maintain these requirements.
• Operational security solutions that meet TenneT's requirements.
• Offshore projects for your discipline and validating them against TenneT’s requirements to ensure that security procedures are compliant with TenneT’s requirements through each project phase.
• Ensure TenneT’s security requirements are adhered to and implemented correctly.
• And aligning with internal stakeholders the improvements that are needed for this.
• Align with experts and teams within Offshore NL/GER and various other departments within TenneT and take into account lessons learned from other large projects.
• With your extensive technical cyber security knowledge and experience, you make an active contribution to a safe working environment for yourself, your colleagues and external contractors.
What do you bring?
•
• A relevant degree in cyber security or equivalent (BSc. degree or higher).
• At least 5 years+ of relevant work experience regarding security in mid to large sized projects OT / IACS environments.
• You have knowledge about and experience with security risk management, security architecture and engineering for OT / IACS Environments, industrial networking, IAM (e.g. Active Directory and Cisco ISE), security testing, assessment and reporting (e.g. Penetration Testing), and (physical) asset security.
• You know the relevant norms and standards and have preferably taken specialization courses in IEC 62443, GIAC regarding OT Security and NIS2. Additional courses regarding physical security (e.g. intrusion detection, camera, and access systems) are an advantage.
• You are meticulous in your reviews, while not losing the bigger picture.
• You have excellent communication and cooperation skills.
• You have a high degree of independence, initiative and assertiveness; no 'nine to five-mentality’.
• You are fluent in English, both verbally and in writing.
• Speaking Dutch is an advantage, but not mandatory.
Important:
•
• Knowledge of IEC 62443 is a must!
• I have to be an specialist in OT security.
• For this role is a AIVD-B screening mandatory!
• You need to be able to work 40 hours a week.
Practical information:
•
• VOG and AIVD-B screening must be received before a candidate can start;
• Upon commencement of employment, a Pre Employment Screening (PES) is carried out as standard;
• Location: Arnhem Rijnport, 3 days a week and Eemshaven 1x a month. 2 days a week hybride.
• Self-employed no? Unfortunately, the application does not lend itself to the hiring of a self-employed person;
• Option to extend is available yes, but unlikely?
• Interviews:1 round, maximum 2;
Additional information:
•
• Suppliers of candidates should be aware of the applicable laws and regulations in the field of employment conditions and the (TenneT) collective labor agreement. This commitment falls within scale 8 of the TenneT collective labor agreement;
• We would like to receive the personal motivation and CV in English;
Screening:
•
• Pre-employment screening: If the candidate is allowed to start with the client, a pre-employment screening will take place. We will then send you the necessary documents. Your candidate may only start after completing the pre-employment screening. The VOG application is part of the screening from Magnit, the VOG must be received before the candidate can start;
• The candidate has proof of identity (a passport or identity card), which is valid at intake and on the start date of the candidate's contract and can be submitted for verification.
Availability:
•
• It is important that the candidate is available for the entire requested period in the application;
• When offering a candidate, we assume that you agree with the terms and conditions of this specific client. If you are not familiar with these conditions, you can request them from the responsible consultant.
• IMPORTANT! Fill in all candidate details correctly. In the event of incomplete/incorrect offers, there is a risk that the candidate cannot be offered and will therefore be rejected.
Together we ensure a stable and sustainable energy grid. Netherlands – together with you.
Functie-eisen:
A relevant degree in cyber security or equivalent (BSc. degree or higher).
At least 5 years+ of relevant work experience regarding security in mid to large sized projects OT / IACS environments.
Knowledge of IEC 62443 is a must!
I have to be an specialist in OT security.
For this role is a AIVD-B screening mandatory!
You need to be able to work 40 hours a week.
VOG and AIVD-B screening must be received before a candidate can start;
Upon commencement of employment, a Pre Employment Screening (PES) is carried out as standard;
The candidate has proof of identity (a passport or identity card), which is valid at intake and on the start date of the candidate's contract and can be submitted for verification.
Wensen:
You know the relevant norms and standards and have preferably taken specialization courses in IEC 62443, GIAC regarding OT Security and NIS2.
Additional courses regarding physical security (e.g. intrusion detection, camera, and access systems) are an advantage.
Speaking Dutch is an advantage, but not mandatory. Solliciteer nu!
Duur: zsm - 30-09-2026
Optie tot verlenging: Ja
Reageren voor: 25-02-2026
Technical Specialist Cyber Security
Introduction At TenneT, we are working on the electricity grid of tomorrow. As a Technical Specialist Cyber Security, you play a crucial role in realizing a future-proof energy supply. From your specialism, you make a direct contribution to projects that keep the Netherlands going – today and tomorrow.
About TenneT and the unit: TenneT is growing fast to realize its strategic ambitions. We play a leading role in driving the energy transition. We are looking for a passionate Technical Specialist Cybersecurity with affinity for Physical Security at our location in Arnhem who will contribute to this and that might be you! The business unit Large Projects Offshore Netherlands (LON) connects, via innovative HVDC (high voltage direct current) platforms and converter stations, windfarms at the Northsea to the grid on the mainland. An enormous amount of renewable energy has to be connected within the next 10 years. Not only connections to the grid near the coast, but even deeper inland grid connection systems will be planned. Our challenge: Connecting up to 35GW of offshore wind energy in 2035 is a challenging task for TenneT as the designated Transmissing System Operator (both onshore and offshore) in the Netherlands. To meet this challenge TenneT has developed the 2GW-Program within LON. With cutting edge technology like 525kV HVDC TenneT is leading the offshore development. The department of Engineering & Services within LON provides the necessary technological expertise to the 2GW-Program and the various projects.
Your contribution to TenneT You will support our offshore projects with your OT / IACS technical cyber security and physical security expertise. In different regions in the Netherlands multiple grid connection systems will be build, together with our consortia.
Your main tasks and responsibilities are:
•
• Towards the offshore projects that have to operationalize and implement TenneT’s security requirements, and as interface towards internal stakeholders that develop and maintain these requirements.
• Operational security solutions that meet TenneT's requirements.
• Offshore projects for your discipline and validating them against TenneT’s requirements to ensure that security procedures are compliant with TenneT’s requirements through each project phase.
• Ensure TenneT’s security requirements are adhered to and implemented correctly.
• And aligning with internal stakeholders the improvements that are needed for this.
• Align with experts and teams within Offshore NL/GER and various other departments within TenneT and take into account lessons learned from other large projects.
• With your extensive technical cyber security knowledge and experience, you make an active contribution to a safe working environment for yourself, your colleagues and external contractors.
What do you bring?
•
• A relevant degree in cyber security or equivalent (BSc. degree or higher).
• At least 5 years+ of relevant work experience regarding security in mid to large sized projects OT / IACS environments.
• You have knowledge about and experience with security risk management, security architecture and engineering for OT / IACS Environments, industrial networking, IAM (e.g. Active Directory and Cisco ISE), security testing, assessment and reporting (e.g. Penetration Testing), and (physical) asset security.
• You know the relevant norms and standards and have preferably taken specialization courses in IEC 62443, GIAC regarding OT Security and NIS2. Additional courses regarding physical security (e.g. intrusion detection, camera, and access systems) are an advantage.
• You are meticulous in your reviews, while not losing the bigger picture.
• You have excellent communication and cooperation skills.
• You have a high degree of independence, initiative and assertiveness; no 'nine to five-mentality’.
• You are fluent in English, both verbally and in writing.
• Speaking Dutch is an advantage, but not mandatory.
Important:
•
• Knowledge of IEC 62443 is a must!
• I have to be an specialist in OT security.
• For this role is a AIVD-B screening mandatory!
• You need to be able to work 40 hours a week.
Practical information:
•
• VOG and AIVD-B screening must be received before a candidate can start;
• Upon commencement of employment, a Pre Employment Screening (PES) is carried out as standard;
• Location: Arnhem Rijnport, 3 days a week and Eemshaven 1x a month. 2 days a week hybride.
• Self-employed no? Unfortunately, the application does not lend itself to the hiring of a self-employed person;
• Option to extend is available yes, but unlikely?
• Interviews:1 round, maximum 2;
Additional information:
•
• Suppliers of candidates should be aware of the applicable laws and regulations in the field of employment conditions and the (TenneT) collective labor agreement. This commitment falls within scale 8 of the TenneT collective labor agreement;
• We would like to receive the personal motivation and CV in English;
Screening:
•
• Pre-employment screening: If the candidate is allowed to start with the client, a pre-employment screening will take place. We will then send you the necessary documents. Your candidate may only start after completing the pre-employment screening. The VOG application is part of the screening from Magnit, the VOG must be received before the candidate can start;
• The candidate has proof of identity (a passport or identity card), which is valid at intake and on the start date of the candidate's contract and can be submitted for verification.
Availability:
•
• It is important that the candidate is available for the entire requested period in the application;
• When offering a candidate, we assume that you agree with the terms and conditions of this specific client. If you are not familiar with these conditions, you can request them from the responsible consultant.
• IMPORTANT! Fill in all candidate details correctly. In the event of incomplete/incorrect offers, there is a risk that the candidate cannot be offered and will therefore be rejected.
Together we ensure a stable and sustainable energy grid. Netherlands – together with you.
Functie-eisen:
A relevant degree in cyber security or equivalent (BSc. degree or higher).
At least 5 years+ of relevant work experience regarding security in mid to large sized projects OT / IACS environments.
Knowledge of IEC 62443 is a must!
I have to be an specialist in OT security.
For this role is a AIVD-B screening mandatory!
You need to be able to work 40 hours a week.
VOG and AIVD-B screening must be received before a candidate can start;
Upon commencement of employment, a Pre Employment Screening (PES) is carried out as standard;
The candidate has proof of identity (a passport or identity card), which is valid at intake and on the start date of the candidate's contract and can be submitted for verification.
Wensen:
You know the relevant norms and standards and have preferably taken specialization courses in IEC 62443, GIAC regarding OT Security and NIS2.
Additional courses regarding physical security (e.g. intrusion detection, camera, and access systems) are an advantage.
Speaking Dutch is an advantage, but not mandatory. Solliciteer nu!