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OT/ ICS Security Professional (Cyber Security)

Company Description

Are you experienced in security aspects of Operational Technology or Industrial Control Systems environments and technologies? Are you looking to develop your skills and be at the forefront of cybersecurity?

We are looking to strengthen our growing Cyber team with OT/ICS Security Professionals whose focus would be on Industrial Control Systems and Operational Technology. The seniority we're after can range from Senior Consultant to Manager level determined by your knowledge and experience.

In addition to these focus areas, there are opportunities to work across other cybersecurity domains, allowing you to broaden your skills and experience. We welcome applications from candidates at the Senior Consultant to Manager level, with seniority determined by your knowledge and experience.

About us

Our Cyber team enables leading organizations across various industries to confidently pursue their growth, innovation, and performance objectives by effectively managing cyber risks. We offer advisory, implementation, and operational services that combine business, risk, and technology expertise to help clients enhance their cyber risk programs, evolving from reactive approaches to forward-looking risk management. Join our international, multidisciplinary Cyber team, comprised of individuals recognized as top talent in their respective fields.

You can read more about our services within Cyber team at Deloitte here 

Job Description

Your role

You will play a key role in helping clients navigate the complex and constantly evolving landscape of operational technology (OT) and industrial control systems (ICS) cyber threats, vulnerabilities, and regulatory requirements. Your responsibilities will include advising clients on OT/ICS cybersecurity strategies, implementing robust security controls tailored to critical infrastructure environments, ensuring compliance with industry standards such as NIST, IEC 62443, and sector-specific regulations, and assisting clients in strengthening their overall OT/ICS security posture while maintaining operational continuity.

You won't be working alone as you will collaborate with both our global and local teams of cyber professionals, bringing a balanced mix of technical, legal, and business expertise to support you.

As an experienced Cyber professional, you will contribute to client engagements, build trusted relationships with clients, collaborate with teams to understand client needs and develop tailored solutions, help enhance our service offerings, and create innovative approaches to meet growing demand in an international environment.

As part of our Cyber team, your role may include:

  • Contributing to, or leading client projects by developing and implementing cybersecurity solutions and controls tailored to address our clients' challenges
  • Solving hands-on technical OT security challenges concerning the security of operational technology and industrial environments
  • Assessing and advising our clients both technically and procedurally on improvements within the area of OT security. This can include e.g. advising on the implementation of technical security solutions for clients, performing OT security site assessments and/or technical OT security tests
  • Building and nurturing long-term relationships with stakeholders and clients by collaborating closely to understand their business needs and ensuring all engagements meet the highest quality standards
  • Supporting proposal development, including responding to RFPs and contributing to business development activities related to potential projects and engagements

Why Deloitte?

🟢Deloitte employs 35,000+ dedicated cyber practitioners worldwide. We serve the biggest and most innovative companies across the globe as well as locally in Finland - solving complex problems, achieving remarkable goals, and making meaningful progress. We refer to ourselves as cyber leaders, strategists, advisors, hackers, and specialists.

🟢Create your own growth and development path based on your background and desired career goals with the help of your career coach. As the undisputed leader in professional services, Deloitte is where you'll find unrivaled opportunities to:

  • Contribute to the latest thought-leadership and industry research relating to cyber security
  • Participate, grow and develop in other cyber security projects to realize your full potential

🟢 At Deloitte, we value every individual and prioritise feedback and coaching at all stages of your career. Our career development opportunities help you build the skills and capabilities you need to succeed and progress in your career

🟢 We have a flat hierarchy that is built around the strengths of our deloittees. We make a positive impact on each other, our clients, and society through our significant client projects

🟢 We work with a hybrid working model and aim to offer flexibility to our employees. We value face-to-face collaboration and learning at our modern office in Ruoholahti, while also providing opportunities for remote work

Qualifications

To succeed in this role

To succeed in this role, you will need curiosity, an open mind, and client-focused mindset. Our clients face complicated challenges, so the ability to quickly learn new concepts and efficiently source relevant information from our Finnish resources or our global network is essential

To thrive in this role and within our team, we have outlined key attributes and requirements that ideal candidates should possess. While you don't need to meet every criterion, having most of these will greatly support your success:

  • Several years of cyber security experience with subject-matter expertise specifically in OT/ICS security, broader than purely network security focused experience
  • Knowledge and experience of operational technology standards and frameworks (e.g. IEC62443 series, NIST 800-82)
  • You enjoy challenges and are eager to solve complex client problems and preferably already have experience acting in a consultative role in cyber consulting. Having experience also from the client perspective, especially from working with or at manufacturing/industrial organization is always beneficial, but not required
  • Ability to make complex analysis and communicate it in a concise and clear manner, appropriately tailored to people from a very wide range of cultures, technical backgrounds and seniorities
  • You get satisfaction from helping organizations whilst forming and maintaining long-term business partnerships/relationships requiring effective interpersonal skills
  • You have completed some relevant cyber certifications or the ambition to complete them (CISSP, CISM, Security+, SSCP, GICSP, GRID, ISA62443 to name a few)
  • Relevant educational background (e.g., M.Sc. (Tech.), or Bachelor of Engineering)
  • Fluency in English and in Finnish, both oral and written
  • You are required to be currently located in Finland and possess a valid residence permit. We are currently not considering candidates requiring relocation

Additional Information

We look forward to receiving your application!

🕒 When: Apply latest by Sunday 1st of March, please note that we are ready to start interviews already during the application period
👉 How: Please submit your application through our recruitment system. Be sure to include your CV and cover letter. In your cover letter, please tell us what interests you about the role and what kind of colleague you would be
📞 Questions about the role: If you have any questions about the position, team or Deloitte as an employer, Mika Nortunen will be happy to answer. You can reach Mika (0505450452) on Tuesday 17.2. between 10-12 or Thursday 26.2. between 14-16
📩 Questions about the recruitment process: You can read more about us and our recruitment process on our website. If you did not find the answer you were looking for, please contact our recruitment team at [email protected]
💚 Get to know Deloitte: Look into our everyday life and discover more about us on LinkedIn, TikTok, Instagram, and Facebook
🎯Not quite your role? Don't hesitate to leave an open application on our website, you might be a perfect fit for another open role in our cyber team!

Together makes progress

At Deloitte, we value diverse skills, perspectives, and experiences, as they enable us to effectively solve complex challenges for our clients. We encourage you to apply for the position if you believe your skills can contribute to our team's success.

You will have the opportunity to work alongside over 450,000 colleagues globally and nearly 900 colleagues in Finland across Audit & Assurance, Tax & Legal, and Consulting services. At Deloitte, it's all about people, each with something special to offer. We collaborate closely with one another and with our clients, making great things happen. That's how we create real change.

Deloitte is where you'll find unlimited opportunities to succeed and realise your full potential, together.

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OT/ ICS Security Professional (Cyber Security)

Helsinki
Hybrid work, Full time, Permanent

Published on 09.02.2026

Company Personnel: 
500 - 999 henkilöä
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