OT Security Architect - Renewables

Denmark; Esbjerg; Hybrid; DKK 900,000 - 1,200,000; Full time

Job summary

Semco Maritime in Denmark is seeking an experienced OT Security Architect to lead security efforts on large-scale EPC substation projects within the Renewables division. You will take the architectural lead and coordinate a six‑person OT Security Team, with offices in Esbjerg or Copenhagen.

The role requires hands-on knowledge of IEC 62443, ISO 27001 and NIS, plus auditing and compliance capabilities. Travel will be 10–30 days per year as projects span onshore and offshore environments.

Qualifications

• Minimum 5 years of OT security experience.
• Tech Lead mentality and ability to drive large projects.
• Strong stakeholder management and communication skills.
• Fluent English and experience in complex engineering projects.

Responsibilities

• Contribute to OT/Cyber security architecture based on IEC 62443, ISO 27001, and NIS.
• Define products and standards for OT security and infrastructure.
• Lead audits and compliance activities (ISO 27001, regulatory frameworks).
• Review requirements and input to tender packages.
• Coordinate FAT/SAT/SIT activities and ensure system delivery.

Skills

OT Security

Technical leadership

Communication skills

Stakeholder management

Team leadership

English fluency

Job description

Are you an experienced and motivated OT Security Architect and do you want to leave your mark on the global energy industry? If so, we want to hear from you!

Your position

In your new position as OT Security Architect in the Renewables division, you will be a valuable member of the OT Security Team, whose mission is to ensure excellent OT security deliveries on large-scale EPC substation projects. You will have the chance to take the architectural lead and help shape a collaborative team culture built on expertise and knowledge-sharing. Above all, your work will make a real difference to the global energy sector.

Your place of work will be at one of our offices in either Esbjerg or Copenhagen. The position is full-time, and you can expect to travel 10–30 days per year.

“Every day, we help enable the green energy transition by building secure, resilient OT solutions that ensure renewable energy assets operate safely and reliably.” - OT Security Architect & Team Lead, Reza Sarafrazjoo.

In our Renewables division, we have major EPC projects in the pipeline for both short- and long-term operations. As an OT Security Architect, you will take the architectural lead and support all OT Security areas across the EPC substation projects.

Your tasks will include but are not limited to:

• Contributing to the implementation of industry-accepted good practice and required Cyber/OT Security architecture at solution level, typically based on standards such as IEC 62443, ISO 27001, and NIS
• Helping define products and standards relevant to OT Security and infrastructure
• Hands‑on experience with cybersecurity audits and compliance frameworks, including ISO 27001, Critical Infrastructure regulations, and IEC 62443
• Reviewing requirements/ITT packages and providing input to tenders consisting of calculations, solutions, descriptions, clarifications, and reservations
• Taking on an advisory or active role in infrastructure, identity access management, or logging/event‑based activities
• Being responsible for planning, coordinating, and executing FAT, SAT, and SIT activities to ensure successful system delivery and integration
• Implementing customer‑specific Cyber/OT Security requirements in substation design for multiple systems and subsystems, such as SCADA, low‑voltage, HVAC, Auxiliary Control and Monitoring System, etc.

Crucial to this position is your ability to take ownership of project deliverables and coordinate OT Security deadlines with internal and external stakeholders. You should thrive in a leading role where your skills, collaboration, and structured approach help ensure that requirements are met.

You are a team player who enjoys leading projects and working with stakeholders to align on timing, scope, and objectives. You know when technical expertise should be brought in to support delivery. To us, this means that you have a structured and solution‑oriented approach, the ability to influence stakeholders, and the dedication to see tasks through to completion.

You will be part of a team of six colleagues that values quality, attention to detail, and a flexible working environment. We are sociable, helpful, and open to input, and we work in a dedicated, structured, and execution‑focused way while respecting the agility that is a natural part of our core tasks. We want the same from you.

To succeed in this position, we imagine that you have:

• A minimum of 5 years of relevant experience in OT Security from a similar position
• A Tech Lead mentality – we are not seeking an extreme subject matter expert, but a well‑rounded colleague who can work through heavily structured large projects involving many stakeholders
• The ability to know when additional technical specialists or resources are needed to complete a project
• Excellent communication skills and fluency in English
• Experience working in complex engineering projects, as well as project and stakeholder management, is an advantage

If you have any questions, you are more than welcome to contact OT Security Architect & Team Lead, Reza Sarafrazjoo [phone].

We offer you the chance to change what really matters. To deliver intelligent and hands‑on answers to global questions togetherwith the most dedicated thinkers and doers in the energy industry.

At land and at sea – where we care for and trust each other. And where your dedication will impact our projects, partnerships, and people.

The best thing about working here is that I still after many years in the company feel that my job is evolving – it never gets boring.

Play your role in the global energy sector. With us.

Looking for a workplace where you can make real change? A meaningful job where you have the freedom, trust, and responsibilities to play an important role and not just be a small fish in a big shoal?

Well, at Semco Maritime, we wear many hats (and helmets), covering all kinds of aspects and phases of innovative offshore energy projects around the world. Both within the conventional energy sector and the renewable energy industry — and within various professional disciplines such as project management, engineering, design, fabrication, installation, service, and maintenance of offshore assets.

Change. With us.

Step into the change

We want to be the partner that shapes the energy transition — not just follows it. We challenge the status quo and put our hearts and minds into how a fossil‑free future actually gets built. Together with world‑leading partners, at sea and on land.

Join a culture of curiosity

With more than 40 years of experience, we never stop being curious. We stay open to new thinking and especially value input from the people closest to the work. You'll find room to take initiative, share ideas and shape how we work.

Grow your expertise

This is a place where you develop — professionally and personally. Our specialists are true experts in their fields, and you'll be surrounded by people who lift each other and help you become even better at what you do.

Your well‑being is our success

We put people first — our colleagues and our partners. Safety, trust and a healthy balance between structure and freedom are at the core of how we work, so you can feel safe, heard and like an important part of the team.

Come on board!

Our goal is to make you a success in your new job. Below, you can see our recruitment process from when you apply, to the evaluation

Whether you are a recent graduate or an experienced professional

...we offer you ample room to grow.

As a leading company with a global presence, we provide numerous opportunities for advancement, allowing you to transform your initial position into your next.

And the next. And the …

It is a strange feeling to be the NEW guy - but my colleagues in the HSEQ department have all been very welcoming – and they seem to value my background and experience.

of Semco Maritime's employees have rated us on Jobindex