Industrial Control Systems Security Engineer in Sioux Falls

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Job DescriptionJob DescriptionJoin Our Team as an Industrial Control Systems Security Engineer!

Are you driven to protect critical infrastructure and make a real impact in the world of industrial cybersecurity? Do you enjoy solving complex problems and building solutions that keep operations safe and resilient? If so, we’d love to meet you.

As an ICS Security Engineer at Direct Companies, you’ll play a key role in helping clients secure their industrial environments. From identifying threats and analyzing risks to developing practical security programs, you’ll work across teams to improve visibility, reduce vulnerabilities, and support long-term safety and reliability.

About Direct Companies in Sioux Falls

Direct Companies is a growing leader in automation, IT, and fabrication services, dedicated to helping clients succeed through custom-built solutions. Headquartered in Sioux Falls, we pride ourselves on building a culture of collaboration, creativity, and continuous learning.

Our people-first mindset fuels everything we do—and we're looking for someone who shares that drive to innovate and elevate.

What We're Looking for in a Candidate:

• Bachelor’s degree in cybersecurity, engineering, or related field .

• Experience with industrial control systems, protocols, and architectures (e.g., Purdue Model).

• Familiarity with OT security frameworks like IEC 62443 and NIST 800-82.

• Strong ability to analyze technical risks and develop practical solutions.

• Clear communicator who can translate technical details into business impacts.

• Ability to work across teams and collaborate with engineering, operations, and leadership.

• A passion for protecting critical infrastructure and continuous improvement.

Key Responsibilities:

• Monitor industrial networks and identify assets, threats, and anomalies.

• Build visibility into ICS environments using passive tools and communication mapping.

• Analyze network architecture and recommend segmentation improvements.

• Translate findings into risk-based recommendations and OT security programs.

• Guide teams on remediation planning and priority actions.

• Collaborate with clients and internal teams to align security efforts with business goals.

• Support sales with technical insights and solution design during proposals.

Key Performance Indicators (KPIs):

• Quality and clarity of visibility and detection outcomes.

• Success of security program adoption and improvement initiatives.

• Effectiveness of risk communication across stakeholders.

• Contribution to technical accuracy and value in client engagements.

General Benefits Offering:

At Direct Companies, we believe great work deserves great rewards. Our team members enjoy:

• Competitive compensation

• Health, dental, and vision insurance

• 401(k) with company match

• Paid time off (PTO) and holidays

• Life and insurance

• Career growth and professional development

Why Join Us?

This role is perfect for someone who’s passionate about protecting what matters—people, operations, and infrastructure. You’ll join a talented team and have the opportunity to shape how industrial security is done right.

If you’re ready to secure the future—we’d love to hear from you.

Apply Today!

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