Senior Systems Administrator - Madison, WI
21 hours ago
Job description
Be the backbone of Realta Fusion's internal technology. The Senior Systems Administrator owns and scales the company's IT infrastructure, ensuring our team can work securely, efficiently, and without friction as we grow. This role blends hands-on technical execution with process-building in a fast-moving startup environment.
Realta Fusion is a rapidly growing start-up developing compact magnetic mirror fusion energy systems to address the biggest challenge of our time – tackling global climate change while ensuring a sufficient energy supply for at least ten billion people on (and off) earth. We are building a team with diverse talents dedicated to making fusion energy a real solution to humanity's most pressing problem.
Responsibilities
End-User Systems & IT Support (30%)
- In collaboration with managed service provider, configure, deploy, and maintain laptops (Mac, Windows) and peripherals for new hires and existing employees.
- Provide day-to-day IT support and troubleshooting for in-office and remote employees.
- Manage user accounts, access controls, and device lifecycle management.
- Provide off-hours support as needed.
Identity, Licensing & Security Training (25%)
- Own and administer Microsoft 365 licensing, user provisioning, and permissions.
- Manage company-wide cybersecurity awareness and training platform.
- Enforce security best practices, endpoint protection, and compliance with internal policies.
Network, Cloud & VPN Infrastructure (25%)
- Own and maintain office network infrastructure, including firewalls, Wi-Fi, and VPN connectivity.
- Administer and troubleshoot VPN and network components hosted in our cloud environment.
- Partner with engineering, science, and operations teams to ensure secure and reliable connectivity.
- Collaborate with dev/ops managed service provider to support our cloud environment.
IT Processes, Documentation & Scaling (20%)
- Design, document, and continuously improve internal IT processes and policies.
- Establish onboarding/offboarding workflows and asset tracking.
- Serve as a key contributor to long-term IT strategy as the company scales.
Required Qualifications
- 7+ years of experience in systems administration or IT infrastructure roles.
- Hands-on experience managing Microsoft 365 environments and endpoint devices (Mac, Windows).
- Strong knowledge of networking fundamentals, VPNs, and cloud-based infrastructure (AWS preferred).
- Proven ability to troubleshoot a wide range of hardware, software, and network issues.
- Experience building and documenting IT processes in a growing organization.
- Familiarity with cybersecurity frameworks/certifications (i.e. NIST-CSF, ISO).
Preferred
- Experience supporting start-up or high-growth environments.
- AWS certifications or equivalent cloud experience.
- Experience with identity and device management tools (e.g., Intune, MDM solutions, JAMF).
- Familiarity in supporting Linux systems.
Compensation & Benefits
What we are working on is hard… and hugely important. Realta Fusion is assembling a talented team bound together by a passion to solve humanity's biggest challenge with first-of-a-kind technology. Additionally, Realta offers:
- Competitive compensation package, including equity stock options.
- Comprehensive benefits including health, dental, and vision insurance, plus a retirement savings plan.
- Flexible paid time off (PTO) to support work-life balance.
- Work and live in Madison, Wisconsin — one of America's most livable and vibrant cities.
We value diversity as a critical factor in innovation and believe a diverse team is necessary to solve the toughest problems. We aim to create an inclusive environment that unleashes the full creativity of our team members from a wide variety of backgrounds and experiences. We provide equal employment opportunities to all individuals based on merit and without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, veteran status, or any other protected status under applicable laws.
Similar jobs
We are seeking a team-oriented problem-solver to join our Infrastructure Team as a Systems Administrator. The position will build solutions, implement new software and hardware, provide training and mentoring, troubleshoot and remediate anomalies. · Perform server and system admi ...
1 month ago
+Job summary · CapB es una empresa líder en soluciones IT y servicios gestionados. Buscamos consultores para trabajar con nosotros en base salarial o contrato. · Requisitos:Experiencia previa en sistemas administrativos. · ...
1 week ago
We are seeking a team-oriented problem-solver to join our Infrastructure Team as a Systems Administrator. The Systems Administrator will provide expertise in design, administration, maintenance and support of the infrastructure systems and processes Quartz relies on to provide wo ...
1 week ago
· This senior-level IT infrastructure position manages DATCP's mission-critical server cloud identity digital workforce platforms providing technical leadership and ensuring system reliability security posture regulatory compliance readiness performance optimization continuity o ...
1 month ago
We seek a team-oriented problem-solver to join our Infrastructure Team as a Systems Administrator. The role will build solutions, implement new software and hardware, provide training and mentoring, troubleshoot and remediate anomalies. · ...
1 month ago
The Systems Administrator will be responsible for all associated duties related to the design, installation, and maintenance of all bank systems. · ...
1 month ago
The Department of Agriculture works to protect and promote Wisconsin's agricultural industries and consumers. The job is a senior-level IT infrastructure position in the Division of Management Services responsible for designing and administering DATCP's mission-critical server pl ...
1 month ago
If you enjoy solving complex challenges in a collaborative environment that celebrates each person's ideas, experience and creativity this might be the opportunity for you. Flad is a national architectural firm with ten offices looking to hire an experienced Systems Administrator ...
1 month ago
We need consultants who can work with us on salaried or contract basis to provide industry standard benefits. · ...
1 week ago
The position will work with the team and the functional business groups within Department of Corrections (DOC), Bureau of Technology Management (BTM), and other state agencies to ensure the availability of the agency's server environment... · Strong Leadership and Facilitation Sk ...
1 month ago
+ Job summary: We are looking for an experienced Systems Administrator to work in our Madison, WI office. + · + Responsibilities:Manage Windows system administration. · Assist in configuring MDT, WSUS, GPO and PDQ workstation processes. · ...
2 days ago
This role oversees the technical management of laboratory systems supporting daily operations in a regulated environment. · ...
2 days ago
This position provides a chance to grow in a global leader on IT Solutions and Managed Services company. · ...
1 week ago
We are seeking a Broadcast Systems Administrator (IS Technical Services Specialist) for our Core Engineering team at the Educational Communications Board (ECB). The selected candidate will serve as administrator for all of ECB's broadcast-related IT systems and infrastructure. · ...
2 weeks ago
The Senior Systems Administrator owns and scales the company's IT infrastructure. · ...
2 days ago
This position is responsible for the planning, · installation and administration of technical resources for · the enterprise server infrastructure.Windows Server Administration · X Windows patching and patch management tools · Group Policy Object (GPO) – configuration and adminis ...
2 weeks ago
The position will work with the team and the functional business groups within Department of Corrections (DOC), Bureau of Technology Management (BTM), and other state agencies to ensure the availability of the agency's server environment, · The individual will have expertise in a ...
1 month ago
We are looking for an experienced Systems Administrator to work in our Madison office. The role will architect, configure and oversee Flad's Windows server infrastructure and escalations from the service desk. · Minimum five years of relevant System Administration functions requi ...
1 month ago
We are looking for an experienced Systems Administrator to join our team at Flad Architects in Madison WI. · ...
1 month ago
The position will work with the team and the functional business groups within Department of Corrections (DOC), Bureau of Technology Management (BTM), and other state agencies to ensure the availability of the agency's server environment is maintained at the highest levels. · ...
1 month ago