At a Glance
- Tasks: Manage and support Microsoft Exchange systems while ensuring security and performance.
- Company: Vitol, a leader in the energy sector with a diverse global team.
- Benefits: Competitive salary, inclusive culture, and opportunities for professional growth.
- Other info: Collaborative environment with a focus on innovation and career development.
- Why this job: Join a dynamic team and make a real impact on critical messaging systems.
- Qualifications: Deep expertise in Microsoft Exchange and enterprise messaging required.
The predicted salary is between 70000 - 90000 £ per year.
Vitol is a leader in the energy sector with a presence across the spectrum: from oil through to power, renewables and carbon. From 40 offices worldwide, we seek to add value across the energy supply chain, including deploying our scale and market understanding to help facilitate the energy transition. To date, we have committed over $2 billion of capital to renewable projects, and are identifying and developing low‑carbon opportunities around the world.
Our people are our business. Talent is precious to us and we create an environment in which individuals can reach their full potential, unhindered by hierarchy. Our team comprises more than 65 nationalities and we are committed to developing and sustaining a diverse work force.
We are seeking a highly experienced Senior Systems Engineer with deep expertise in Microsoft Exchange and Enterprise Messaging, to join our Global Core Systems Infrastructure team in London or Geneva. The role focuses primarily on the support, operation, design, and evolution of on‑premises Exchange, while also covering the design and assessment of Exchange Online, hybrid messaging, and broader core infrastructure services. You will be critical in ensuring the availability, security, and performance of business‑critical messaging systems, while contributing to the platform’s long‑term strategy and potential cloud transformation.
Key Responsibilities- Messaging (Primary Focus)
- With a global team, own and manage Microsoft Exchange (on‑premises) as a core business‑critical service.
- Supporting messaging and all related services.
- Administer and support Exchange Online and hybrid configurations, including mail flow, transport, and coexistence.
- Manage mailbox lifecycle, migrations, archiving, and retention policies.
- Design and maintain secure mail flow, including anti‑spam, anti‑phishing, and encryption controls.
- Troubleshoot complex messaging, transport, and client connectivity issues.
- Lead or contribute to Exchange modernisation and migration initiatives.
- Core Infrastructure (Secondary Scope)
- Support Active Directory and Entra ID (Azure AD), including hybrid identity and authentication.
- Administer Windows Server environments including DNS, DHCP, ADFS, Certificate Services.
- Manage and maintain VMware virtualisation platforms, including performance, capacity, and lifecycle.
- Support Microsoft 365 services including those related to messaging and collaboration.
- Contribute to high availability, backup, and disaster recovery designs.
- Platform & Operations
- Ensure availability, performance, and resilience of messaging and core infrastructure.
- Apply security best practices aligned with enterprise and regulatory requirements.
- Participate in incident management and complex troubleshooting across infrastructure domains.
- Maintain clear documentation, operational procedures, and system designs.
- Support audits, compliance, and risk assessments.
- Collaborate with global teams and stakeholders across regions.
- Leadership & Engineering Contribution
- Act as a subject matter expert (SME) for Exchange and messaging services.
- Provide technical leadership and mentoring to other engineers.
- Contribute to architecture, design decisions, and strategic roadmap planning.
- Drive improvements in automation, monitoring, and operational efficiency.
- Strong hands‑on experience with Microsoft Exchange Server (on‑premises), Exchange Online, and hybrid environments.
- Enterprise messaging architecture and mail flow design, including transport rules, connectors, and message hygiene.
- Mailbox migrations and coexistence strategies.
- Messaging security (anti‑spam, anti‑phishing, encryption).
- Experience with PowerShell and automation.
- Solid experience with Active Directory, Entra ID (Azure AD), Microsoft 365, and Windows Server administration.
- Good working knowledge of VMware / vSphere infrastructure.
- Understanding of identity, authentication, and security principles.
- Familiarity with backup, DR, and monitoring platforms.
- Experience leading Exchange → Exchange Online migrations.
- Exposure to large‑scale, globally distributed environments.
- Knowledge of mobile/messaging integration (e.g. Intune / mobile clients).
- Microsoft / M365 / VMware certifications.
- Reliable and structured, able to operate critical systems with ownership.
- Strong problem‑solver with a methodical troubleshooting approach.
- Clear communicator across technical and business stakeholders.
- Comfortable working in a global, fast‑paced environment.
- Team player with a professional, service‑oriented mindset.
Senior Messaging & Core Infrastructure Engineer (Exchange and Messaging Specialist) employer: Vitol
At Vitol, we pride ourselves on being a dynamic and inclusive employer that values talent and fosters personal growth. Our London and Geneva offices offer a collaborative work culture where innovation thrives, and employees are empowered to take ownership of their roles. With a commitment to sustainability and a diverse workforce, we provide unique opportunities for professional development in the rapidly evolving energy sector.
StudySmarter Expert Advice🤫
We think this is how you could land Senior Messaging & Core Infrastructure Engineer (Exchange and Messaging Specialist)
✨Get Involved with Industry Events
The energy and utilities sector is always buzzing with events, trade shows, and networking opportunities. We should hit up conferences and exhibitions like Energy UK or Utility Week Live—these are prime spots to mingle with industry professionals and even snag some insider info on job openings!
✨Join Energy-focused Online Communities
Let's tap into online platforms and forums like LinkedIn groups or Reddit communities specifically for energy and utilities. Not only can we showcase our knowledge, but we can also stay updated on company announcements or job leads from people already in the know.
✨Consider Industry Certifications
Pushing ahead with certifications like the NEBOSH National Certificate in Occupational Safety and Health (if you’re into safety) can give us a leg up in this competitive field. It not only builds our credibility but also shows employers that we’re serious about our career in energy and utilities.
✨Apply ThroughVitol's Website
Don’t forget to apply directly through Vitol's website for the full-time Senior Messaging & Core Infrastructure Engineer (Exchange and Messaging Specialist) role. Many companies prioritise candidates who show initiative by going straight to the source. Make sure we tailor our application to highlight our passion for the energy sector!
We think you need these skills to ace Senior Messaging & Core Infrastructure Engineer (Exchange and Messaging Specialist)
Some tips for your application 🫡
Show Off Your Energy Knowledge:When crafting your CV and cover letter, make sure you highlight any knowledge or experience related to the energy-utilities sector. Whether it’s coursework, internships, or projects that showcase your understanding of energy management, sustainability, or regulatory frameworks, we want to see that passion and expertise shine through.
Quantify Your Achievements:In our field, numbers speak volumes! Don’t just tell us about your previous roles; quantify your achievements where possible. For instance, mention how you improved energy efficiency by a percentage or contributed to cost savings. This makes your application more compelling and shows us just how impactful you can be.
Tailor Your Cover Letter:Your cover letter is your chance to connect personally with us at Vitol. Tailor it to reflect how your values align with our mission in the energy sector. Share why you're excited about this specific role and how you envision contributing to our goals.
Demonstrate Your Team Spirit:Collaboration is key in the energy-utilities industry. In your application, emphasise any team projects or experiences where you worked effectively with others, especially on sustainability initiatives or technical projects. We're looking for someone who can mesh well with our team!
How to prepare for a job interview at Vitol
✨Show Your Passion for Renewable Energy
In the energy-utilities sector, it’s vital to demonstrate your enthusiasm for sustainable practices and innovations. Share experiences where you've worked on or studied renewable energy projects, whether that’s through coursework, past internships, or personal initiatives. Let us see how your passion aligns with the ethos of Vitol.
✨Brush Up on Industry Regulations
Being familiar with industry standards and regulations is crucial in energy-utilities interviews. Make sure to know the basics of relevant policies and frameworks, like the Energy Act or environmental legislation. This will not only show you’ve done your homework but will also prepare you for potential technical questions about compliance during your interview.
✨Highlight Teamwork and Project Management Skills
Most roles in the energy sector involve collaboration with diverse teams. Be ready to discuss examples where you’ve successfully worked in teams or led projects, especially those involving energy initiatives. This is particularly important for a full-time position, as employers want to see you bring a collaborative spirit to Vitol.
✨Prepare for Technical Assessments
Expect some technical questions or even practical assessments during your interview, especially about energy efficiency methodologies or basic engineering principles relevant to the role. It’s a good idea to brush up on key concepts and be prepared to explain them clearly, as this will demonstrate your technical proficiency and readiness to jump into your new role.
