Senior System Engineer – M365

Wanstor Limited; Greater London; On-site; GBP 65,000 - 90,000; Full time

Benefits offered by this job

24 days annual leave

Lunch & learn sessions

5 paid development days

2 volunteer days

Team social events

Job summary

Wanstor Limited is seeking a Senior System Engineer (internal title: Senior Technical Consultant) to deliver infrastructure, cloud and modern workplace projects for a diverse client base in a Hybrid environment.

You will design secure IT solutions, build trusted client relationships and mentor junior engineers while leading complex initiatives across Microsoft 365, Azure and hybrid infrastructures.

Qualifications

• Hands-on experience with Microsoft 365, Azure, Entra ID, Intune, Defender, AD and Exchange Online.
• Strong networking knowledge: LAN/WAN, VPN, Firewall, Switching, Routing and Wireless.
• Ability to perform root cause analysis and research across diverse data sources.
• Excellent communication, mentoring and leadership capabilities.

Responsibilities

• Deliver infrastructure, cloud and modern workplace projects for diverse customers.
• Design and implement secure, scalable IT solutions aligned with business objectives.
• Build trusted relationships with clients, acting as a strategic technical advisor.
• Mentor Service Desk engineers and support continual improvement across environments.
• Lead cloud adoption and infrastructure modernisation including Microsoft 365 and Hybrid environments.
• Manage major incidents and change requests through to resolution.
• Collaborate with Professional Services, Service Delivery and Account Management to deliver outcomes.

Skills

Microsoft 365

Azure

Entra ID

Intune

Microsoft Defender

Active Directory

Exchange Online

Networking basics

Job description

Senior Project Engineer - Microsoft 365

Department: Senior Engineering

Employment Type: Permanent - Full Time

Location: Hybrid

Description

At Wanstor, we've been delivering award-winning IT solutions for over 22 years, and we're proud to continue growing year after year. Today, our team is over 200 strong, supporting organisations across a wide range of industries with managed services, cloud, cyber security, networking, infrastructure and modern workplace solutions.

We're passionate about helping our customers get the very best from technology, building long-term partnerships and delivering exceptional service. If you're looking for a role where you can work with a variety of customers, influence technical strategy and continue developing your career alongside a talented team, you'll feel right at home here.

We're looking for a Senior System Engineer (internal title: Senior Technical Consultant) to become one of our trusted technical advisors. This is a varied role combining project delivery, technical consultancy, customer relationship management and technical leadership. You'll work closely with IT and business leaders, helping customers modernise their environments, solve complex technical challenges and get maximum value from their technology investments.

As one of our senior technical specialists, you'll also act as the highest level of technical escalation for the Service Desk, mentor junior engineers and play an important role in driving continual improvement across our customers' environments.

What You'll Do

• Deliver infrastructure, cloud and modern workplace projects across a diverse customer base.
• Design and implement secure, scalable IT solutions that align with customers' business objectives.
• Build trusted relationships with customers, becoming a strategic technical advisor rather than simply a support engineer.
• Proactively review customer environments, identifying opportunities to improve performance, resilience, security and user experience.
• Lead cloud adoption and infrastructure modernisation projects, including Microsoft 365, Azure and hybrid environments.
• Ensure customer environments remain secure and aligned with Cyber Essentials best practices.
• Act as the final technical escalation point for complex infrastructure and support issues.
• Take ownership of major technical incidents and change requests through to successful completion.
• Mentor and support Service Desk engineers, helping to develop the wider technical capability of the business.
• Work collaboratively across Professional Services, Service Delivery and Account Management to deliver outstanding customer outcomes.

What You'll Need

• Extensive hands-on experience across Microsoft technologies, including: Microsoft 365, Azure, Entra ID, Intune, Microsoft Defender, Active Directory, Exchange Online
• Strong experience working with: Windows Server, Hyper‑V, VMware, SQL, AWS, Hybrid infrastructure environments and Backup and Disaster Recovery Solutions.
• Good understanding of networking technologies: LAN/WAN, VPN, Firewall, Switching and Routing, Wireless networking, Co‑location and Hybrid environments
• Experience of diagnostic information gathering and analytical thinking, the ability to understand the architecture of operations and undertake root cause analysis.
• The ability to undertake research consulting a range of data sources and critical thinking skills to provide detailed and accurate analysis.
• An understanding of current security concepts and frameworks relating to cyber essentials and ISO2701
• Accurate and effective communication using a variety of techniques including verbal and written work.

What You'll Love

Generous Time Off: Enjoy 24 days of annual leave, increasing by 1 day each year up to 28 days, plus Bank Holidays.
Continuous Learning: Participate in regular lunch and learn sessions with both internal and external speakers.
Personal Development: Take advantage of 5 paid days annually to pursue new skills or knowledge.
Volunteer Opportunities: Contribute to your community with 2 paid volunteer days each year.
Team Spirit: Join a friendly team and engage in various social events organised throughout the year.