Sentar is proud to be an employee-owned company, fostering a culture of empowerment, collaboration, and innovation. Sentar is dedicated to developing the critical talent that the connected world demands to create solutions to address the convergence of cybersecurity, intelligence, analytics, and systems engineering. We invite you to join the team where you can build, innovate, and secure your career. Sentar is seeking a Senior Network Engineer III in Butlerville, Indiana! This position is dependent on contract award Role Description: Lead all planning, development, implementation, problem resolution, and ongoing administration of MACC-TTE enterprise networks per PWS Section 3.9. Serve as the technical authority and subject matter expert for all network system policy and architecture planning decisions at MuTC. Provide recommendations on proposed Network Systems Engineering changes, upgrades, and capability expansions, with full technical justification for Government review. Define and maintain network technology roadmaps and strategies for the MuTC infrastructure, aligned with DoD and INNG modernization priorities. Design and maintain network segmentation, access control policies, and IA compliance configurations across all classified and unclassified range segments. Design and support wireless network infrastructure including cellular range systems, 802.11x networks, and EW-adjacent spectrum domains in coordination with the Cellular/RF Engineer. Ensure DISN and DoD node connectivity requirements are met and maintained throughout the period of performance. Develop and maintain all required network architecture documentation, system diagrams, configuration baselines, and change records per CDRL requirements. Coordinate with the Systems Administrator/Engineer on infrastructure integration activities and provide senior-level technical oversight of all network-related tasks. Qualifications: Clearance Level: TS/SCI Education: A Bachelor's degree in Network Engineering, Cybersecurity, Computer Science, Electrical Engineering, or a closely related technical discipline is required. In lieu of a degree, a minimum of fifteen (15) years of directly applicable senior network engineering experience in DoD classified environments, with demonstrated cyber range or testbed network architecture experience, may be substituted. Certifications: One or more of the following: Cisco Certified Network Professional (CCNP) - Enterprise or Security Cisco Certified Internetwork Expert (CCIE) DoDM 8140.03 IAT Level III (CASP+, CISSP) Certified Information Systems Security Professional (CISSP) CompTIA Network+ or Security+ Juniper Networks Certified Professional (JNCIP) Experience: Minimum ten (10) years of professional experience in network engineering, with at least five (5) years in cyber range, computer testbed, or C5ISR range environments. DoDM 8140.03 IAT Level II baseline certification at time of proposal submission. Expert-level proficiency in enterprise network design and configuration including routing protocols (BGP, OSPF, EIGRP), switching, firewall policy, DNS, VPNs, VLANs, and QoS. Demonstrated experience providing enterprise network engineering and architecture support for distributed DoD test range or training range facilities with multiple classified and unclassified network segments. Demonstrated experience with wireless infrastructure design and implementation including IEEE 802.11x standards and 2G/3G/4G/5G cellular technologies in a DoD or range environment. Experience with DoD network nodes and architectures including JIOR, DISN connectivity requirements, and applicable DISA STIGs. Demonstrated experience developing network architecture documentation, technology roadmaps, and network system policy guidance for senior Government review. Experience integrating EW and spectrum management considerations into enterprise network designs for multi-domain training environments. Benefits at Sentar: Our unique employee ownership model attracts top talent, giving employees the freedom to take initiative and drive meaningful improvements. In addition to cultivating a thriving and inclusive work environment, Sentar offers an extensive benefits package designed to support the well-being of employees and their families. Employee ownership is the foundation of our culture, promoting participation, teamwork, and accountability while ensuring long-term financial security and a commitment to excellence. Voluntary Medical, Dental, Vision, with Flexible Spending Plan options Voluntary Life, Critical Illness, Accident, and Long Term Care insurance options Group Term Life, Short-Term and Long-Term Disability is provided by Sentar to all qualifying employees Generous 401(k) match Competitive PTO plan that graduates quickly with years of service Other leave programs; holiday schedule along with bereavement, maternity, jury and military duty Tuition reimbursement Professional development reimbursement Recognition and Awards programs If you are not ready to apply for this position, submit your resume here to join our talent community. We'll keep you updated occasionally on new job opportunities. Sentar is an Affirmative Action and Equal Opportunity Employer M/F/Vets/Persons with Disabilities Our culture is one of inclusivity and support. Sentar is proudly an Equal Opportunity and VEVRAA Federal Contractor Employer M/F/Vets/Persons with Disabilities. Follow these links to learn more about your rights: EEO Is the Law Poster; EEO Is Law Supplement; and Pay Transparency. We want you to build your career at Sentar, so if you are an individual with a disability and require a reasonable workplace accommodation applying for a job or at any point in the employment process, contact the Recruiting Manager at recruiting@sentar.com. Please indicate the specifics of the assistance needed. Thank you for considering Sentar in your employment search. Build, Innovate, Secure Your Career at Sentar.