Operating System Engineer Jobs in Tennessee (NOW HIRING)

Location: Smyrna, TN | Onsite

About FIXX Energy

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

We are seeking an experienced Senior Systems Engineer / Microsoft Cloud Architect to design, implement, and manage enterprise IT infrastructure across Microsoft Azure and AWS environments. The ideal candidate will have strong expertise in cloud tenant setup, system security, virtualization, Active Directory/Entra ID, and Microsoft Exchange, along with a strategic mindset for building scalable and secure solutions.

Key Responsibilities

• Design, deploy, and manage Microsoft Azure and AWS environments, including new tenant setup and configuration
• Architect secure, scalable, and highly available cloud solutions
• Lead cloud migration efforts from on premises to Azure/AWS
• Configure and manage networking, storage, compute, and identity services in cloud environments
• Infrastructure & Systems Management
• Manage and support virtual server environments (on-prem and cloud-based)
• Administer and maintain Active Directory (AD) and Microsoft Entra ID (Azure AD)
• Ensure proper identity and access management (IAM) policies and governance
• Oversee and maintain Microsoft Exchange (Online and/or Hybrid environments)
• Security & Compliance
• Implement and maintain system security best practices across cloud and on-prem systems
• Monitor systems for vulnerabilities and coordinate patching and remediation
• Configure security tools such as Microsoft Defender, conditional access policies, and MFA
• Ensure compliance with corporate and regulatory security standards
• Operations & Support
• Provide tier-3 support for complex infrastructure and cloud-related issues
• Monitor system performance, availability, and capacity planning
• Automate routine tasks using PowerShell, scripting, or cloud-native tools
• Develop and maintain system documentation, architecture diagrams, and operational procedures

Requirements

• 5+ years of experience in Systems Engineering, Cloud Engineering, or Infrastructure roles
• Proven experience with:
• Microsoft Azure tenant setup and administration
• AWS account/tenant setup and core services
• Microsoft Exchange (Online and Hybrid environments)
• Virtualization technologies (Hyper-V, VMware, or cloud VMs)
• Strong understanding of:
• System security principles and best practices
• Identity and access management (IAM), MFA, RBAC
• Networking fundamentals (DNS, DHCP, VPN, VNet/VPC)
• Experience with infrastructure automation and scripting (PowerShell preferred)

Travel

Occasional domestic and international travel required.

What We Offer

Welcome to FIXX Energy, where you will have the opportunity to tackle the world's most fascinating challenges alongside exceptionally talented individuals who are driven to make a difference. We strive to ensure that our employees are well taken care of, enabling them to focus on their work and contribute to our collective mission.

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
• 401K 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.