
Department: Development & Engineering
Employment Type: Full Time
Location: Bristol, United Kingdom
Reporting To: Paul Hillyard
Are you looking for a company where YOUR VOICE is heard? Where you can MAKE A DIFFERENCE? Do you THRIVE in a FAST-PACED work environment? Do you wake every morning EXCITED to work with GREATPEOPLE and create SUCCESSTOGETHER? Then Intermedia is the place for you.
Intermedia has established itself as a leading provider of cloud communications and collaboration tech that allows companies to connect better. We have a strong track record of growth, profitability, and creating an environment where everyone matters. Everyone. While we are fast-paced and admittedly a bit intense, we promise that you won’t be bored. You will find Intermedia is a place where you can indulge your passion for creating and supporting great cloud technology. What’s more, we always look to promote from within and have many employees who have been with us 10, 15, and 20+ years!
Culture at Intermedia is built on teamwork and transparency. We hold each other accountable and always have each other’s back!
Are you ready to make your mark?
Intermedia are looking for a Senior Developer with hands-on experience with IP phone integrations to lead development work on our IP phone configuration server. The role will require a detailed understanding of SIP telephony, IP phone configuration mechanisms, and features. The ideal candidate will also understand server technologies and combines both development and testing expertise with strong analytical and problem-solving skills. Excellent communications skills both written and verbal are essential as the role will require regular interaction with Product Owners, and Development/QA leads. Primary Responsibilities:• Analyze phone configuration documentation and create integration specifications for Intermedia's Call Server requirements.• Implement and validate changes to support new and updated phone models.• Create and maintain technical configuration guides for internal development, QA and support teams.• Implement analytics and usage metrics and perform profiling and performance optimization of the phone provisioning server.•Maintain high-quality, maintainable code following OOP principles.
• Advanced server-side development in Java 8 or greater.• Strong Linux server development experience (Nginx, Tomcat).• Strong understanding of IP Security principles including certificates and TLS.• Solid understanding of network programming (sockets, TCP/UDP).• Experience using Wireshark or tcpdump for network analysis.• Experience with SQL e.g. MySQL / Percona
Desirable Skills:
•Familiarity with Python for scripting or test automation.• Development tools JIRA, GitHub & CI / CD pipelines•Exposure to Data Analytics tools or experience using Grafana for monitoring, metrics visualization, and performance insights.
We hire, promote, and compensate employees based on their ability to perform their job responsibilities, without regard to race, color, creed, religion, sex, gender, marital status, national origin, ancestry, age, citizenship, physical or mental disability, sexual orientation, or any other basis protected by applicable law (collectively referred to in our Code of Conduct as “Protected Classes”). We do not tolerate employment discrimination in the workplace, and we are committed to making reasonable accommodations for identified disabilities or other limitations as required by all applicable laws. We are an equal opportunity employer and value diversity at our company. We do not discriminate on the basis of race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status.

Intermedia is the cloud communications company that helps over 150,000 businesses connect better, from wherever, through our AI-powered platform that includes voice, video conferencing, chat, SMS, contact center, business email and productivity, file sharing and backup, security, archiving, and more. We strive to eliminate the need for multiple communications service providers with a seamlessly integrated portfolio of intelligent communications and collaboration solutions, including our flagship product, Intermedia Unite®, all delivered through one highly reliable and secure platform. With month-to-month contract options, one monthly bill, one intuitive point of administrative control, and certified by J.D. Power for excellence in technical support eight times, Intermedia is committed to providing enterprise-grade products to businesses of all sizes through a simple, Worry-Free Experience.
As a partner-first company, Intermedia goes to work for over 7,500 channel partners by providing a comprehensive set of programs, resources, and support to help them grow their revenue and maximize their success. Programs include our Customer Ownership Reseller (CORE™) model – which enables partners to resell, package, and manage Intermedia's solutions as if they were their own, while benefiting from highly attractive economic terms and maintaining ownership of their customer relationships – as well as agent models.
Recent Awards:
• J.D. Power Certified Assisted Technical Support Program – 2024, 2023, 2021, 2020, 2019, 2018, 2017, 2016
• PCMag Editor’s Choice – Intermedia Unite
• US News & World Report - Best Business Phone System - Intermedia Unite
• CRN - 5-Star Partner Program - 2025, 2024, 2023, 2022
• CRN’s Cloud Computing Product of the Year - 2024, 2023, 2022, 2021 – Intermedia Unite