Onecom is the UK's leading business technology provider, shaping the way we work, connect, communicate and operate.
You will join a multi-award-winning company, with over 800 talented people committed to delivering great customer experiences driven by the Onecom Way; Think Kaizen, Be Respectful, Build Relationships, Make it Happen, Work Smart, Be Amazing.
As Service Desk Engineer, you'll be the first point of technical contact for our cloud voice and connectivity customers, helping to diagnose issues, implement changes, and ensure our customers receive an outstanding support experience.
Troubleshooting and resolving cloud telephony and connectivity issues.
Managing incidents and support tickets to ensure SLA commitments are met.
Providing regular updates to customers via phone, email, and support portals.
Raising and managing cases with third-party suppliers and partners.
Completing customer-requested changes on cloud voice platforms.
Supporting major incidents and providing technical updates where required.
Maintaining accurate ticket notes, customer records, and documentation.
Assisting with reporting, implementation activities, and project support tasks.
Collaborating closely with colleagues across Operations, Customer Experience, Product, and Sales teams.
Strong troubleshooting and problem-solving skills.
Excellent communication skills with the ability to explain technical concepts clearly.
Experience working within a technical support, telecoms, IT support, or service desk environment.
Working knowledge of cloud-based telephony solutions.
Understanding of networking concepts, including:
LAN and WAN technologies
Routing and switching
SIP and IP networking
Strong IT skills and attention to detail.
Ability to manage multiple priorities and work effectively under pressure.
A proactive, customer-focused mindset with a positive "can-do" attitude
Experience supporting:
Microsoft Teams Telephony
Mitel
Five9
VOX and Vox One
Knowledge of:
PSTN, xDSL, FTTx and Ethernet services
Routers, Access Points and ATAs
Experience using Salesforce within a technical support environment
๐ Holidays 25 days + bank holidays and buy/sell options
๐ Other Leave Birthday day off, 12 paid hours for flexible use, Volunteer day
๐ Lifestyle 9% combined pension contribution and 4x salary life assurance
๐ Rewards Quarterly and annual employee awards, discounts on tech
๐ Socials All-expenses-paid company events
๐ Development In-House Training Academy
๐ Wellbeing 24/7 access to mental health support, Calm App, discounted gym membership, free breakfast & fresh fruit, eye-care vouchers, financial wellbeing support
We believe that diverse teams bring a range of experiences and better ideas that fuel innovation. Thatโs why weโre committed to creating an environment where everyone feels valued, respected, and able to bring their authentic selves to work. We welcome applications from people of all backgrounds, experiences, identities, and perspectives.

Onecom is the UKโs leading business telecoms and cloud communications provider managing over a million services for 80,000+ business customers - delivering communication services and unified solutions across fixed-line voice, connectivity, and managed cloud.
Onecomโs customers include Farrow & Ball, Thwaites, Celtic Manor, Laithwaiteโs Wine, Yorkshire Building Society and 118 UK Ltd.
Recent awards include Five9 EMEA Innovation Partner of the Year Award, โBest Customer Service Awardโ at the Mobile News Awards; and it has been named Vodafone Strategic Partner of the Year for the last 13 consecutive years.