UK business telecoms and cloud communications provider for 80,000+ SMEs
Onecom manages over a million telecom and cloud services across the UK mid-market, operating a hybrid stack of legacy telecom infrastructure (Asterisk, Kamailio) alongside modern cloud platforms (Google Cloud, AWS, Kubernetes). Support-heavy hiring (37% of active roles) and a project roster focused on CSAT/NPS and disconnection process efficiency signal a company scaling operational maturity rather than product innovation — typical of established telecom operators expanding managed service reach.
Notable leadership hires: Technical Support Lead
Onecom is the UK's largest independent business telecoms provider, serving 80,000+ customers across fixed-line voice, mobile, connectivity, and managed cloud services. The company operates unified communications solutions for mid-market businesses, managing over a million active services. Founded in 2002 and publicly listed, Onecom maintains headquarters in Fareham, Hampshire, with a 501–1,000-person team spanning support, engineering, operations, and sales functions. Recent strategic recognition includes Vodafone partner-of-the-year status and Five9 innovation partnership awards.
Onecom runs Angular, .NET, C#, and Java for application logic; PostgreSQL and SQL Server for databases; Elasticsearch and BigQuery for analytics; Kubernetes and Google Cloud Run for orchestration; and Asterisk/Kamailio for VoIP telephony infrastructure.
Headquartered in Fareham, Hampshire, UK. Active hiring in both the United Kingdom and India, with accelerating velocity across the last 30 days.
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