Sr. System Engineer

Job Description Description & Requirements

Position:
Sr. Systems  Architect

Location:

Smyrna, TN | Onsite

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.

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 , and Microsoft Exchange, along with a strategic mindset for building scalable and secure solutions.

• Cloud Architecture & Deployment
• 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  (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 Power Shell, scripting, or cloud-native tools
• Develop and maintain system documentation, architecture diagrams, and operational procedures

• 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
• Active Directory (AD), Microsoft Entra  (Azure AD)
• 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 (Power Shell preferred)

Occasional domestic and international travel required.

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.

• 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…