Senior IT Systems Engineer - Hybrid (Atlanta, GA)

OneDigital; Atlanta (GA); Hybrid; USD 90,000 - 120,000; Full time

Job summary

OneDigital in Atlanta is seeking a Senior IT Engineer (Level 3) to provide advanced escalation and systems administration across the enterprise IT environment.

The role focuses on Windows endpoints/servers, AD/Azure, Microsoft 365, Intune/SCCM, and on-call support, with a hybrid in-office schedule 3–4 days per week.

You will mentor junior engineers and help improve support processes while maintaining secure, well-documented infrastructure.

Qualifications

• 5+ years of progressive hands-on IT support or systems administration experience.
• Experience with Windows OS administration (desktop/server) and enterprise networking fundamentals (TCP/IP, DNS, DHCP, VPN).
• Experience administering AD/Azure AD/Entra ID and Microsoft 365 in an enterprise environment.
• Experience with Intune and SCCM endpoint management.
• PowerShell scripting for automation and troubleshooting.
• Familiarity with ITIL-based ticketing and change management processes.
• Relevant certifications preferred (e.g., CompTIA Network+/Security+, Microsoft Certified: Modern Desktop Administrator, ITIL Foundation).

Responsibilities

• Serve as Level 3 escalation point for complex hardware, software, network, and application issues.
• Perform advanced root-cause analysis and troubleshooting across Windows endpoints, servers, and enterprise applications.
• Manage escalated tickets within established SLAs, ensuring timely communication with end users and stakeholders.
• Administer and support Active Directory, Azure AD/Entra ID, and Microsoft 365 for account, access, and identity issues.
• Support endpoint management platforms (Intune/SCCM) for imaging, patching, and configuration compliance.
• Troubleshoot network connectivity issues including LAN/WAN, VPN, and Wi‑Fi across office and remote locations.
• Document recurring issues and root causes, and build knowledge base articles to improve first-contact resolution at L1/L2.
• Participate in an on-call rotation for after-hours critical incident support as needed.

Skills

Windows OS administration

Enterprise networking fundamentals

Active Directory / Azure AD / Entra ID

Microsoft 365 administration

PowerShell scripting

ITIL ticketing & change management

Mentoring junior engineers

Strong communication skills

Education

Bachelor’s Degree in Information Technology, Computer Science, or related field

Tools

Intune

SCCM

Microsoft 365 Admin Center

Job description

Summary

No other company in our industry is supercharging the way they work and serve their clients like OneDigital. Fresh thinking has always been the core of OneDigital’s vision and growth strategy. It’s how we stand out in our industry, it’s how we stay competitive and resilient in a changing world. Most importantly, our innovative approach is helping more people do their best work and live their best lives. Innovation fuels our employee experience by making it easier to do your best work anytime, anywhere and from any device. And our tech-based products for clients are a game changer in our industry. If you thrive on change and innovation, OneDigital is the career choice for you.

Our Newest Opportunity

The Senior IT Engineer (Level 3) is an experienced technical resource providing advanced, escalated support and systems administration across the enterprise IT environment. This role serves as a Tier 3 point of escalation for complex issues spanning endpoints, servers, networking, identity, and cloud collaboration platforms—resolving issues that fall outside the scope of Level 1 and Level 2 support.

This position is based in the Atlanta, GA area and follows a hybrid schedule, working in-office 3–4 days per week. The Senior IT Engineer partners closely with the broader IT Support, Infrastructure, and Security teams to maintain a stable, secure, and well‑documented technology environment, while mentoring junior engineers and helping to continuously improve support processes.

Essential Duties And Responsibilities

Technical Support & Troubleshooting

• Serve as the Level 3 (L3) escalation point for complex hardware, software, network, and application issues that L1/L2 support cannot resolve.
• Perform advanced root-cause analysis and troubleshooting across Windows endpoints, servers, and enterprise applications.
• Manage and resolve escalated tickets within established SLAs, ensuring timely communication with end users and stakeholders.
• Administer and support Active Directory, Azure AD/Entra ID, and Microsoft 365 for account, access, and identity issues.
• Support endpoint management platforms (Intune/SCCM) for imaging, patching, and configuration compliance.
• Troubleshoot network connectivity issues including LAN/WAN, VPN, and Wi‑Fi across office and remote locations.
• Document recurring issues and root causes, and build knowledge base articles to improve first-contact resolution at L1/L2.
• Participate in an on-call rotation for after-hours critical incident support as needed.

Systems Administration & Infrastructure Support

• Administer and maintain servers, virtual environments, and core infrastructure supporting daily business operations.
• Support enterprise applications, file/print services, and backup and disaster recovery processes.
• Assist with the planning and execution of system upgrades, patch cycles, and infrastructure projects.
• Develop and maintain PowerShell scripts to automate routine administrative and remediation tasks.
• Maintain accurate technical documentation, including network diagrams, configuration standards, and runbooks.
• Monitor system health and performance, proactively identifying and addressing potential issues.

Mentorship & Process Improvement

• Mentor and provide technical guidance to Level 1 and Level 2 support engineers.
• Recommend and help implement process improvements to reduce ticket volume and improve overall support quality.
• Partner with cross-functional IT teams (Security, Infrastructure, Applications) on projects and escalations.
• Contribute to the evaluation and rollout of new tools and technologies that improve the end-user and IT support experience.

Qualifications, Skills And Requirements

• Considerable, hands-on experience (typically 5+ years) in IT support, systems administration, or a related technical role, with demonstrated ability to independently resolve complex, escalated issues.
• Strong working knowledge of Windows OS administration (desktop and server) and enterprise networking fundamentals (TCP/IP, DNS, DHCP, VPN).
• Experience administering Active Directory, Azure AD/Entra ID, and Microsoft 365 in an enterprise environment.
• Experience with endpoint management tools such as Microsoft Intune and/or SCCM.
• Working knowledge of PowerShell scripting for automation and troubleshooting.
• Familiarity with ITIL-based ticketing and change management processes.
• Relevant certifications preferred (e.g., CompTIA Network+/Security+, Microsoft Certified: Modern Desktop Administrator, ITIL Foundation).
• Strong analytical and problem-solving skills with the ability to prioritize and manage multiple escalations simultaneously.
• Excellent verbal and written communication skills, with the ability to explain technical issues to non-technical users.
• Demonstrated ability to mentor and support the professional development of junior team members.
• Ability to work independently and collaboratively within a fast‑paced, team‑oriented environment.

Education, Training And Experience

• Bachelor’s Degree (BS) in Information Technology, Computer Science, or a related field required.
• 5–7+ years of progressive, hands‑on experience in IT support, systems administration, or a related technical role.
• Demonstrated hands‑on experience with:
• Active Directory and Azure AD / Entra ID
• Microsoft 365 administration
• Endpoint management (Microsoft Intune and/or SCCM)
• Windows OS administration (Workstation & Server)
• Enterprise networking fundamentals (IP, DNS, VPN, WAN/LAN)
• PowerShell scripting and automation

Your base pay is dependent upon your skills, education, qualifications, professional experience, and location. In addition to base pay, some roles are eligible for variable compensation, commission, and/or annual bonus based on your individual performance and/or the company’s performance. We also offer eligible employees health, wellbeing, retirement, and other financial benefits, paid time off, overtime pay for non‑exempt employees, and robust learning and development programs. You will receive reimbursement of job-related expenses per the company policy and may receive employee perks and discounts.

To learn more, visit: www.onedigital.com/careers

OneDigital is an equal opportunity employer. Not only as a matter of standard, but to honor and celebrate our differences. We believe that the power of ONE starts with you. We are committed to cultivating and preserving a culture that celebrates diversity, insists on equity and inclusion, and connects us. Ensuring our people feel seen, valued, respected, and supported is fundamental to our core values and business goals.

OneDigital provides equal employment opportunities to all employees and applicants for employment regardless of their: veteran status, uniformed servicemember status, race, color, religion, sex, sexual orientation, gender identity, age (40 and over), pregnancy (including childbirth, lactation and related medical conditions), national origin or ancestry, citizenship or immigration status, physical or mental disability, genetic information (including testing and characteristics) or any other category protected by federal, state or local law (collectively, “protected characteristics”). A copy of the Federal EEO poster is linked here.

Pursuant To Local Fair Chance Ordinances, We Will Consider Qualified Applications With Arrest Or Conviction Records For Employment. For Applicable Candidates, The Following Ordinances Are Linked Here To Inform You Of Your Rights As An Applicant

City and County of San Francsico

City of Los Angeles

County of Los Angeles

Employment decisions shall comply with all other applicable federal, state and city/county laws prohibiting discrimination in employment. OneDigital complies with all criminal history inquiry [or ‘ban the box’] laws in California, Connecticut, Colorado, Hawaii, Illinois, Maine, Maryland, Massachusetts, Minnesota, New Mexico, Oregon, Rhode Island, Vermont and Washington.

In short, we believe in hiring the most qualified applicant for the position, regardless of background.

If you have questions about our hiring policies and practices, we would be happy to discuss upon receiving your application. We hope to welcome you to OneDigital and look forward to hearing from you.

OneDigital understands the immense responsibility and opportunities provided by Artificial Intelligence. We utilize advanced Artificial Intelligence [AI] technologies to enhance our recruitment process. This includes using AI to filter candidates based on their qualifications and to rediscover potential candidates from our existing applicant pool. Our AI systems help us efficiently identify the best fit for our open positions, ensuring a streamlined and effective hiring experience. However, AI does not replace the humans in our process. If you have concerns about our use of AI, you may opt out where laws allow.

Thank you for your interest in joining the OneDigital team!