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For Companies At a Glance
- Tasks: Support and operate core identity and infrastructure platforms like Active Directory and Microsoft 365.
- Company: Wellington Management, a leading investment management firm with a collaborative culture.
- Benefits: Competitive salary, flexible remote work, and opportunities for professional growth.
- Why this job: Join a dynamic team and make a real impact on critical technology platforms.
- Qualifications: Experience with Active Directory, Windows Server, VMware, and Microsoft 365 is essential.
- Other info: Work in a vibrant environment with strong career advancement opportunities.
The predicted salary is between 60000 - 80000 £ per year.
About Us
Wellington Management offers comprehensive investment management capabilities that span nearly all segments of the global capital markets. Our investment solutions, tailored to the unique return and risk objectives of institutional clients in more than 60 countries, draw on a robust body of proprietary research and a collaborative culture that encourages independent thought and healthy debate. As a private partnership, we believe our ownership structure fosters a long‑term view that aligns our perspectives with those of our clients.
About the Role
Wellington Management is seeking a Senior Directory, M365 & Server Administrator to support and operate the firm’s core identity, collaboration, and Windows infrastructure platforms, including Active Directory, Microsoft 365, Windows Server, and VMware. This is a domain admin level role designed to provide deep technical support and operational continuity for these critical services outside of US business hours, while remaining fully embedded with US based engineering and operations teams. The role will be based in London to ensure meaningful daily overlap with US teams and to enable close collaboration, shared ownership, and consistent engineering standards—rather than operating as a detached regional support function.
THE OPPORTUNITY
This role exists to strengthen the resilience, stability, and responsiveness of Wellington’s core identity and infrastructure platforms. You will work closely with senior engineers and architects across two closely aligned domains:
- Active Directory, Windows Server, and VMware
- Microsoft 365 operations, engineering, and architecture
Rather than being siloed, this role is intended to be deeply embedded in these teams—sharing responsibility for operational health, incident response, and continuous improvement of platforms that are critical to the firm. This is an excellent opportunity for a senior engineer who enjoys hands on technical ownership, complex troubleshooting, and working across identity, server, virtualization, and cloud collaboration technologies.
RESPONSIBILITIES
Core Platform Operations & Engineering- Provide senior level operational support for:
- Active Directory (on prem and hybrid)
- Windows Server platforms
- VMware virtualization environments
- Microsoft 365 (identity, collaboration, and core services)
- Support and maintain Active Directory forests, domains, trusts, and replication.
- Troubleshoot complex AD issues including authentication failures, GPO processing, DNS dependencies, and hybrid identity scenarios.
- Support identity integrations with Microsoft Entra ID and downstream systems.
- Provide operational support for Microsoft 365 services, including identity related components and tenant configuration.
- Partner with M365 engineering and architecture teams to support changes, deployments, and incident response.
- Assist with troubleshooting cross platform issues spanning on prem AD, Entra ID, and M365 services.
- Support Windows Server operating systems and associated services.
- Assist with VMware platform operations, troubleshooting VM level and host level issues as required.
- Work closely with platform owners to maintain consistent standards and operational hygiene.
- Act as a senior escalation point during non US hours for incidents affecting directory, server, virtualization, or M365 platforms.
- Perform deep technical troubleshooting and root cause analysis.
- Contribute to post incident reviews and drive corrective and preventative actions.
- Work closely with US based engineers to ensure seamless handover, shared context, and consistent decision making.
- Participate in team rituals, operational reviews, and engineering discussions to remain aligned and embedded.
- Contribute to shared documentation, runbooks, and operational standards.
- Identify recurring issues, operational gaps, or manual processes and propose improvements.
- Support automation, standardization, and modernization efforts across AD, server, and M365 platforms.
- Maintain accurate documentation for configurations, procedures, and operational knowledge.
- Strong hands on experience administering Active Directory in a complex enterprise environment.
- Solid experience with Windows Server platforms.
- Working experience supporting VMware environments.
- Experience operating and supporting Microsoft 365 in an enterprise context.
- Proven ability to troubleshoot complex, cross platform issues involving identity, servers, virtualization, and cloud services.
- Comfortable operating with elevated privileges (domain admin level) in a controlled, audited environment.
- Strong communication skills and ability to work closely with geographically distributed teams.
- Experience supporting hybrid identity environments (AD + Entra ID).
- Exposure to enterprise scale M365 engineering or operations.
- Experience working in regulated or security sensitive environments.
- Scripting or automation experience (PowerShell preferred).
Not sure you meet 100% of our qualifications? That’s ok. If you believe that you could excel in this role, we encourage you to apply and welcome a chance to review your background. We are dedicated to building and maintaining a diversified workforce and considering a broad array of candidates with a variety of skill, workplace experiences, and backgrounds. As an equal opportunity employer, Wellington Management ensures that all qualified applicants will receive equal consideration for employment without regard to race, color, sex, sexual orientation, gender identity, gender expression, religion, creed, national origin, age, ancestry, disability (physical or mental), medical condition, citizenship, marital status, pregnancy, veteran or military status, genetic information or any other characteristic protected by applicable law.
If you are a candidate with a disability, or are assisting a candidate with a disability, and require an accommodation to apply for one of our jobs, please email us at GMWTalentOperations@wellington.com.
We believe that in person interactions inspire and energize our community and are essential to our culture. In support of this commitment, our employees work from our offices 4 days a week with flexibility to work remotely 1 day a week. We believe that this approach ultimately supports our mission to deliver investment excellence to our clients and their beneficiaries over the long term.
Senior Systems Engineer employer: Wellington Management
Contact Detail:
Wellington Management Recruiting Team
StudySmarter Expert Advice 🤫
We think this is how you could land Senior Systems Engineer
✨Tip Number 1
Network like a pro! Reach out to current employees at Wellington Management on LinkedIn. A friendly chat can give you insider info and maybe even a referral, which can really boost your chances.
✨Tip Number 2
Prepare for the interview by diving deep into their tech stack. Brush up on Active Directory, Windows Server, and Microsoft 365. Show them you know your stuff and are ready to tackle those complex issues head-on!
✨Tip Number 3
Don’t just talk about your skills—show them! Bring examples of past projects or challenges you've overcome that relate to the role. This will help you stand out and demonstrate your hands-on experience.
✨Tip Number 4
Apply through our website! It’s the best way to ensure your application gets seen. Plus, it shows you're genuinely interested in being part of the Wellington team. Let’s get you that job!
We think you need these skills to ace Senior Systems Engineer
Some tips for your application 🫡
Tailor Your CV: Make sure your CV is tailored to the Senior Systems Engineer role. Highlight your experience with Active Directory, Windows Server, and Microsoft 365, as these are key areas for us. Use specific examples that showcase your skills and achievements.
Craft a Compelling Cover Letter: Your cover letter is your chance to shine! Share why you're excited about this role at Wellington Management and how your background aligns with our needs. Be genuine and let your personality come through—this helps us get to know you better.
Showcase Your Problem-Solving Skills: In your application, don’t forget to mention instances where you've tackled complex issues, especially in cross-platform environments. We love candidates who can demonstrate their troubleshooting prowess and innovative thinking!
Apply Through Our Website: We encourage you to apply directly through our website. It’s the best way for us to receive your application and ensures you’re considered for the role. Plus, it makes the process smoother for everyone involved!
How to prepare for a job interview at Wellington Management
✨Know Your Tech Inside Out
Make sure you brush up on your knowledge of Active Directory, Windows Server, VMware, and Microsoft 365. Be ready to discuss specific scenarios where you've tackled complex issues in these areas. The more you can demonstrate your hands-on experience, the better!
✨Showcase Your Problem-Solving Skills
Prepare to share examples of how you've approached troubleshooting in past roles. Think about incidents where you had to perform deep technical analysis or root cause investigations. This will highlight your ability to handle the responsibilities of the role effectively.
✨Emphasise Collaboration
Since this role involves working closely with US-based teams, be ready to discuss your experience in collaborative environments. Share examples of how you've successfully communicated and worked with geographically distributed teams to achieve common goals.
✨Continuous Improvement Mindset
Wellington Management values innovation and improvement. Come prepared with ideas on how you could enhance operational processes or automate tasks within the platforms you'll be managing. This shows you're proactive and committed to excellence.