OT Network Engineer (operational technology)

Market Advanced Manufacturing 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 engineering and securing high criticality automation systems excite you? Are you interested in taking your career in engineering and securing industrial control systems to the next level with one of the largest technology and engineering firms in the world? As a OT network engineer in our OT practice, you will work at the forefront of contemporary industrial systems to plan, design and secure these systems from beginning through deployment. Jacobs designs and builds the world’s infrastructure and you’ll play a key role delivering high-uptime, highly secure networks that enable business operations. As an OT network engineer , you will be responsible for overall leadership in designing, implementing, and maintaining the operational technology (OT) network infrastructure for our clients. Your 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 understanding of network telecommunications, firewalls, Windows environments, 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. Responsibilities In this role, you will be responsible for overall management of design, implementation, and maintenance of the operational technology (OT) network infrastructure. As an OT Network 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 designs, installs and maintains networking and infrastructure in support of control systems 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 best practices are being followed and provided recommendations to comply with applicable cybersecurity framework for industrial environment controls Requirements 5+ years of networking technology knowledge (TCP/IP, routing & switching) 5+ years of engineering-related support of OT environments, industrial control systems (DCS/PLC), or SCADA Experience working with firewalls, routers, switches and wireless communication technology Experience working with servers, virtualization platforms, Active Directory, DNS, and Domain Controllers Cisco CCNA, CCNP, Fortinet NSE-4, JNCIA or equivalent network certification Familiarity with IEC-62443, NIST 800-53 and 800-82 or other industrial cybersecurity standards is a plus. Knowledge of the Purdue Enterprise Reference Architecture Preferred Experience with IIoT and edge computing Travel Expect 15-20% travel to client sites Posted Salary Range: Minimum 130,000.00 Posted Salary Range: Upper 160,000.00 The base salary range for this position is $130,000.00 to $160,000.00. Within the range, individual pay is determined by work location and additional factors, including job-related skills, experience, and relevant education or training. Our health and welfare benefits are designed to invest in you, and in the things you care about. Your health. Your well-being. Your security. Your future. Employees have access to medical, dental, vision, and basic life insurance, a 401(k) plan, paid time off, and the ability to purchase company stock at a discount. Eligible employees may also enroll in a deferred compensation plan or the Executive Deferral Plan. And certain roles may be eligible for additional rewards, including merit increases, performance discretionary bonus, and stock. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability or protected veteran status. Job posted on November 19, 2025. This position will be open for at least 3 days. 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. Your application experience is important to us, and we’re keen to adapt to make every interaction even better. If you require further support or reasonable adjustments with regards to the recruitment process (for example, you require the application form in a different format), please contact the team via . #J-18808-Ljbffr Jacobs