The Full Stack Developer is an essential role within the Development team, supporting the Company’s system development, providing constant improvements. This role will develop and grow our Onecloud application, which is a key application for our customers, delivering self-serve capabilities and analytics.
Proven experience as a Full Stack Developer or similar role with 5 years+ experience.
Experience with Agile / Scrum software development methodologies.
Proficiency in ASP.NET Zero, Angular, HTML/CSS, JavaScript, and XML for front-end development.
Strong knowledge of .NET framework and proficiency in C# for back-end development.
Experience with databases including Google BigQuery, Microsoft SQL Server, and Postgres, for data storage and manipulation.
Ability to integrate applications with caching solutions like Redis and search engines like Elasticsearch for optimized performance.
Experience in deploying and managing applications on Google Kubernetes, Cloud Run, and Cloud Functions for scalable and reliable deployment.
Proven experience in UI/UX design, creating intuitive user interfaces and experiences.
Proficiency in Continuous Integration/Continuous Deployment (CI/CD) pipelines for automating software delivery processes.
Excellent problem-solving skills and ability to troubleshoot issues across the full stack.
Strong communication skills and ability to collaborate effectively with cross-functional teams.
Participating in weekly refinement and planning meetings
Working in a small, dynamic, team
Assisting with project planning, estimating development efforts, and ensuring that deadlines are met.
Help with continuous improvement within the development team by introducing new tools, processes, and methodologies to increase productivity and quality.
Designing and leading core development concepts
Engaging with Business Analysts and Operations teams to understand requirements for development
Providing regular updates on progress of development work streams and releases.
Out of hours product releases.
Benefits:
Holidays 18 days annual leave, + 6 public holidays
Other Leave 7 days casual leave, 7 days sick leave
Development In-House Training Academy
Wellbeing Mental Health support
Onecom is the UK’s leading business communications and cloud solutions partner, trusted by over 80,000 businesses to stay connected and thrive. From household names like Farrow & Ball, Yorkshire Building Society, and Laithwaite’s Wine, to innovative SMEs and public sector organisations, we deliver technology that powers success.
We work with global leaders like Vodafone, Samsung, Apple, and Zoom, and our award-winning team is shaping the future of business connectivity.
We are committed to equity, diversity, and inclusion, and we encourage candidates to complete our equality monitoring form as part of the application process. Responses are anonymous and help inform our future initiatives.

Onecom is the UK’s 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.
Onecom’s customers include Farrow & Ball, Thwaites, Celtic Manor, Laithwaite’s Wine, Yorkshire Building Society and 118 UK Ltd.
Recent awards include Five9 EMEA Innovation Partner of the Year Award, ‘Best Customer Service Award’ at the Mobile News Awards; and it has been named Vodafone Strategic Partner of the Year for the last 13 consecutive years.