Sr. Cybersecurity Engineer

AESC is looking to add a Sr. Cybersecurity Engineer to our team in Murfreesboro, TN.

• Full-Time
• On-site

AESC is an exciting, newly created global organization committed to solving the challenges of a sustainable future and becoming the leading supplier of full-value-chain battery solutions. Our lithium-ion batteries can be found in nearly one million electric vehicles worldwide and have a stellar safety record of zero-critical issues. AESC US is leading the way in battery technology. We design and manufacture EV battery technology for various electric vehicles and equipment.

We are working hard towards unlocking the full potential of sustainable energy and climate change mitigation. We will continue to build upon our successes and expand into new markets and industries, producing innovative and competitive products and technologies that advance the goal of a zero-carbon emission future. AESC is headquartered in Japan and has battery manufacturing locations in Japan, UK, China, and the U.S.

Our mission is to solve the challenges for a sustainable future. Together, we can make a meaningful impact.

AESC is seeking a Senior Cybersecurity Architect to lead the design, implementation, and governance of cybersecurity across both Information Technology (IT) and Operational Technology (OT) environments.

This is a hands‑on architect‑level role responsible for securing enterprise infrastructure, manufacturing systems, and plant operations. The candidate will work onsite and closely with IT, engineering, and plant operations teams to establish a secure‑by‑design framework during and after the separation from AESC Global.

Design, implement & maintain enterprise‑wide cybersecurity architecture for IT and OT environments.

Develop and maintain security standards, policies, and frameworks (aligned with NIST, ISO 27001, IEC 62443). Define secure network architecture for LAN, WAN, and Wi‑Fi across corporate and plant environments.

IT Infrastructure:

• Microsoft 365 (Exchange, Teams, SharePoint, One Drive)
• Identity & Access Management (IAM)
• Conditional Access & Zero Trust architecture
• Oversee vulnerability management and patching programs

OT Security:

• Maintain and enhance secure OT environments including:
  • MES, Manufacturing systems
  • SCADA / 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 (IEC 62443, NIST CSF).

Implement and manage SIEM / SOC solutions, Endpoint Detection & Response (EDR), 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, network engineers, manufacturing/plant operations teams. Act as a security subject matter expert for all projects. Support vendor risk assessments and partner engagement.

• 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).
  • Microsoft 365 security ecosystem.
• Hands‑on experience with:
  • Firewall and network design.
  • Cloud security (Azure preferred).
• Proven experience in a cybersecurity role, with a focus on incident response.
• Extensive knowledge of Microsoft 365 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.
• Certified in one or more of the following: CRISC, CISA, CISM, CISSP, SANS GIAC Security Certifications, ITIL, ISO
  27001.
• Ability to work well in a demanding, dynamic environment, and meet overall…