Onsite Client IT Engineer — Tech Support & Infra Lead

Onecom Ltd.; Chichester; Remote; GBP 45,000 - 65,000; Full time

Benefits offered by this job

Holidays 25d

Birthday day off

Pension 9%

Life assurance 4x

Awards program

Tech discounts

Company events

Training Academy

Mental health support

Wellbeing benefits

Gym discounts

Eye-care vouchers

Financial wellbeing

Job summary

Onecom Ltd. is seeking a Dedicated Engineer to be based at a client site in the UK. You will be the primary technical contact, handling day-to-day IT support, incidents, and infrastructure improvements. You will travel weekly to the client's London office, with travel time considered in hours and train expenses covered.

You will work closely with clients to build trusted relationships, manage IT operations, and ensure secure, available systems aligned with business needs.

Qualifications

• Proven troubleshooting and fault-finding across technologies.
• Experience supporting Microsoft 365, Windows 10/11, Active Directory, Hyper‑V, and Windows Server.
• Excellent customer service and communication skills with stakeholders at all levels.
• Strong organisational skills and ability to manage competing priorities.
• Proactive, solution-focused approach to problems.
• Ability to work independently in a fast-paced environment.
• Full UK Driving Licence.

Responsibilities

• Manage the client helpdesk and ticket queue, ensuring requests are logged, prioritised, and resolved within SLAs.
• Act as the first point of contact for client calls, emails, and technical support requests.
• Provide remote and onsite technical support, troubleshoot issues, and coordinate escalations.
• Support and maintain Microsoft technologies including M365, Windows Server, Exchange, SharePoint, SQL and Azure.
• Administer virtualization technologies including VMware and Hyper‑V.
• Support network infrastructure, connectivity, security solutions, telephony platforms, and remote access.
• Coordinate with third‑party vendors to resolve issues and support business applications.
• Manage and deliver small infrastructure and deployment projects; assist Project Engineers with larger initiatives.
• Maintain technical documentation, processes and procedures.
• Identify opportunities to improve IT services, infrastructure performance, security and customer experience.
• Support cybersecurity and compliance requirements through policies and controls.

Skills

Technical support

Troubleshooting

Customer service

Communication

Organisational skills

Independence

Attention to detail

Proactive problem solving

Education

CompTIA A+

MCP

MCSA

Vendor certifications

Tools

Microsoft 365

Windows Server

Active Directory

Hyper-V

VMware

Azure

Exchange

SharePoint

SQL Server

Citrix

Azure Virtual Desktop

VPN

Job description

Onecom Ltd. is seeking a Dedicated Engineer to be based at a client site in the UK. You will be the primary technical contact, handling day-to-day IT support, incidents, and infrastructure improvements. You will travel weekly to the client's London office, with travel time considered in hours and train expenses covered.

You will work closely with clients to build trusted relationships, manage IT operations, and ensure secure, available systems aligned with business needs.