Senior Network Engineer

FIXX Energy is a battery manufacturer headquartered in Smyrna, Tennessee, operating one of the most established LFP battery production facilities in the United States. The site’s history traces back over a decade as a cornerstone of early U.S. EV battery manufacturing, representing a foundation of deep technical expertise and large-scale operational experience. Building on this heritage, FIXX Energy is evolving the platform into a modern, flexible manufacturing business serving the fast-growing energy storage market. The company is focused on delivering high-performance battery cells and solutions and modernizing the American grid—delivering resilient, intelligent power infrastructure that enables the next era of human connection, AI, and advanced manufacturing. By combining proven manufacturing capability with a forward-looking product and market strategy, FIXX Energy is positioned to be a key enabler of the electrified, resilient energy systems of the future. About the Role FIXX Energy is seeking a Sr. Network Engineer, who will serve as a key member of the IT team. This role will lead the design, implementation, and management of secure, scalable, and high-performance network infrastructure. This role requires deep expertise in information security, cybersecurity frameworks, next-generation firewalls (including Palo Alto), and hybrid environments spanning on-premises datacenters and Microsoft Azure cloud. The ideal candidate is will combine strong architectural vision with hands‑on operational excellence across LAN/WAN technologies. This position reports to Sr. IT Manager. Key Responsibilities Design, implement & maintain enterprise-wide cybersecurity architecture for IT and OT environments. Develop and maintain security standards, policies, and frameworks (aligned with NIST, ISO2001, IEC2643). Define secure network architecture for LAN, WAN, and Wi‑Fi across corporate and plant environments. IT Infrastructure Design, architect, and maintain enterprise‑grade LAN/WAN, datacenter, and cloud network infrastructure. Lead the deployment, configuration, and optimization of Palo Alto firewalls, including policy management, threat prevention, and VPN solutions. Develop and enforce network security strategies aligned with cybersecurity best practices and organizational policies. Implement and manage secure connectivity between on-premises datacenters and Microsoft Azure environments (hybrid networking, VPN gateways, ExpressRoute). Monitor network performance, availability, and security; proactively identify and resolve issues. Conduct risk assessments, vulnerability analysis, and security audits; recommend and implement remediation measures. Manage network segmentation, zero‑trust architecture principles, and secure access controls. Collaborate with cross‑functional teams to support application deployments, cloud migrations, and infrastructure upgrades. Maintain documentation for network architecture, configurations, and security policies. Provide mentorship and technical leadership to junior engineers and administrators. Maintain and enhance secure OT environments including MES, manufacturing systems, SCADA\u2f PLC networks. Maintain and secure network segmentation between IT and OT. Ensure minimal disruption to production while enforcing security controls. Align with industrial cybersecurity standards (IEC2643, NISTCSF). Implement and manage SIEM\u2f SOC solutions, Endpoint Detection & Response, Email and identity protection tools; lead incident response and threat mitigation efforts. Conduct risk assessments and security audits. Define and enforce cybersecurity policies and procedures. Support compliance with industry regulations and internal security standards. Work closely with IT infrastructure teams, system engineers, manufacturing/plant operations teams. Act as security subject matter expert (SME) for all projects. Support vendor risk assessments and partner engagement. Requirements Bachelor’s degree in Cybersecurity, Information Technology, or a related field. More than 5 years’ experience in cyber security. Strong experience in: IT+OT security environments Network security (LAN/WAN/VLAN/firewalls) Microsoft635 5 security ecosystem Hands‑on experience with: Firewall and network design Proven experience in a cybersecurity role, with a focus on incident response. Extensive knowledge of Microsoft635 5 Defender and other cybersecurity tools. Strong analytical, problem‑solving skills, excellent communication and collaboration abilities with both technical and non‑technical personnel. Knowledge of cybersecurity frameworks, regulations, and best practices. Ability to work in a fast‑paced and dynamic environment. Strong attention to detail and the ability to work under pressure. Ability to lead incident handling processes. Security risk language domains. Experience with SOC22, ISO27001, NIST and TISAX compliance. Knowledge of cybersecurity, engineering, ethical hacking tools and methods. Familiar with big data technologies, SQL, Python, analytic software packages and software engineering environments. A desire to constantly improve the company’s global security position. Nice to Have Industry certifications such as PCNSE, CISSP, CCNP/CCIE, Azure Network Engineer Associate. Experience with automation and scripting (PowerShell, Python). Familiarity with cloud security and DevSecOps practices. Experience with load balancers, IDS/IPS, and DDoS protection solutions. Travel Occasional domestic and international travel required. What We Offer We offer Comprehensive compensation packages including a competitive salary and a bonus. An inclusive work environment that fosters professional and personal development. Medical, Dental and Vision Insurance HSA and Flexible Spending Accounts 401(k) with company match Life Insurance (company paid and additional voluntary life available) Paid Vacation and 14 Paid Holidays Short term and long-term disability coverage (company paid) At FIXX Energy, we are committed to providing Equal Employment Opportunity (EEO) to all individuals. We participate in E-Verify and will provide the federal government with your Form I‑9 information to confirm that you are authorized to work in the U.S. Physical Requirements The physical demands described here are representative of those that must be met by an employee to successfully perform the essential functions of this job. Reasonable accommodation may be made to enable otherwise qualified individuals with disabilities to perform the essential job functions. Ability to sit for extended periods of time. Ability to read, write, speak, hear; stand; walk; use hands to finger, handle, or feel; reach and lift with hands and arms frequently throughout the day. Required to occasionally lift, push, pull and/or move up to 10 pounds and occasionally required to lift, push, pull and/or move up to 35 pounds. The individual must be able to perform all essential functions as appropriate in an office, on the plant floor, in meetings, and with employees, management, customers and suppliers. Candidate must perform the essential duties and responsibilities with or without reasonable accommodation efficiently and accurately, and without causing significant safety threat to self or others. The statements made herein are intended to describe the general nature and level of work being performed by employees assigned to this job classification. They are not intended to be construed as an exhaustive and inclusive list of all responsibilities, duties, and/or skills required of personnel so classified. Hiring is contingent upon successful completion of drug screen and background check. FIXX Energy, LLC is a drug‑free workplace. #J-18808-Ljbffr FIXX Energy