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Sr OT Network Engineer

Remote, USA Full-time Posted 2026-06-17

At Jacobs, we're challenging today to reinvent tomorrow by solving the world's most critical problems for thriving cities, resilient environments, mission-critical outcomes, operational advancement, scientific discovery and cutting-edge manufacturing, turning abstract ideas into realities that transform the world for good. Your impact Are you passionate about cybersecurity? Does configuring and securing high criticality industrial networks excite you? Are you interested in taking your networking engineering career to the next level with one of the largest technology and engineering firms in the world? As a Senior Network Engineer with Jacobs, you will work at the forefront of contemporary industrial network design and cybersecurity. Jacobs design and builds the world’s infrastructure and you’ll play a key role delivering high-uptime, highly secure networks that enable business operations. As a Sr Network Engineer, you will be responsible for overall leadership in designing, implementing, and maintaining the operational technology (OT) network infrastructure at one of our industrial sites. Your senior role will be critical in ensuring the reliability, security, and performance of our OT systems. You will partner with Jacobs Industrial Control Systems (ICS) teams to deliver communication networks that are optimized for reliable automation and business operations. In this role, you will also design scalable and reliable network infrastructure in greenfield and brownfield environments. You’ll leverage your understanding of network telecommunications, firewall, Windows OS, and TCP/IP protocols to engineer robust and secure networks of varying sizes and complexity. From resolving interoperability issues across platforms, to supporting the acquisition of hardware, you’ll put your hardware and software talents to good use at Jacobs. Are you ready to build a career in network engineering at the cutting edge of OT network design and engineering? At Jacobs, we are building a more connected and sustainable world. Come join us as we engineer and secure networks at the heart of today’s global infrastructure. LOCATION Remote in the United States or Hybrid option if you live close enough to a Jacobs office

Responsibilities

In this role, you will be responsible for overall management of design, implementation, and maintenance of the operational technology (OT) network infrastructure. As a Senior Engineer, this includes selecting and configuring network hardware and software, such as switches, routers, firewalls, and industrial protocols. You will be responsible for network security and providing monitoring and troubleshooting of performance issues and for resolving network-related problems to minimize downtime.

  • This position sets up and maintains networking and control infrastructure in accordance with company standards and works with OT Network Management to provide solutions for maintenance and operations. This includes but is not limited to Process Control Infrastructure and Third Party Vendor Packages
  • Create and maintain detailed network diagrams of the manufacturing industrial infrastructure, network, server, cabling, rack level, and logical architecture including procedures and plans to support current and future projects.
  • Procure equipment per project requirements
  • Travel to project sites to provide support of ICS networks, manage and maintain converged platforms, virtualization, networks, security platforms and various other OT/IoT technologies
  • Review of network architectures and determining if good practices are being followed and provided recommendations to comply with applicable cybersecurity framework for industrial environment controls

We value collaboration and believe that in-person interactions are crucial for both our culture and client delivery. We empower employees with our hybrid working policy, allowing them to split their work week between Jacobs offices/projects and remote locations enabling them to deliver their best work. Here's what you'll need

  • 5+ years of experience on Industrial control systems (DCS/PLC)
  • 5+ years of networking technology knowledge (TCP/IP, routing, or switching)
  • Experience working with firewalls and wireless communication technology
  • Experience working with virtualization platforms, Active Directory, DNS, and Domain Controller
  • Familiarity with IEC-62443 or other industrial cybersecurity standards is a plus.
  • Cisco CCNA, Fortinet NSE-4, JNCIA or equivalent network certification (proof of certification required)
  • 5+ years of PLC/SCADA and/or DCS network
  • Familiarity with IEC-62443 or other industrial cybersecurity standards is a plus.
  • Knowledge of the Purdue Enterprise Reference Architecture

Preferred

  • Experience with IIoT and edge computing

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