Software Development Engineer in Test (SDET)

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 GREAT PEOPLE and create SUCCESS TOGETHER? 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!

Intermedia is seeking an experienced Software Development Engineer in Test (SDET) to ensure the quality and reliability of our Hosted PBX (HPBX) Voice Platform.
 This role focuses on automated testing of real-time VoIP systems, with emphasis on protocol behaviour, network interactions, and system reliability under load. You will contribute to test design, CI/CD integration, and troubleshooting of issues across distributed components, using both traditional and AI-assisted approaches.

·       Design and maintain automated tests across API and end-to-end system layers

·       Integrate test suites into CI/CD pipelines (e.g. GitHub Actions, Jenkins)

·       Analyse failures using logs, metrics, and network traces (tcpdump, Wireshark, pcap)

·       Validate VoIP call flows and signalling behaviour

·       Execute load and reliability tests; define and monitor quality metrics

·       Apply appropriate testing strategies (functional, integration, system-level) to ensure coverage and reliability

·       Use AI-assisted tools to improve test coverage and failure analysis

·       Collaborate with development teams to improve testability and system reliability

·       Work across multiple areas with minimal supervision and clear ownership of deliverables

·       Work in Linux environments to deploy, configure, and debug systems

·       Track and manage defects using Jira

·       Strong programming experience in Python

·       Experience with C/C++ preferred

·       Experience with test automation frameworks (e.g. pytest or equivalent)

·       Experience with CI/CD systems (e.g. GitHub Actions, Jenkins)

·       Strong Linux experience

·       Solid understanding of IP networking fundamentals (TCP/UDP, routing, NAT)

·       Hands-on experience with tcpdump, Wireshark, and pcap analysis

·       Experience testing and troubleshooting network-intensive systems

·       Experience with API and system-level testing

·       Ability to debug issues using logs, metrics, and traces

·       Experience with SQL databases

·       Practical use of AI tools for development or testing workflows

·       Strong understanding of the software development lifecycle and quality engineering practices

·       Professional experience in complex or distributed systems

·       Ability to clearly communicate technical issues and debugging findings

·       Ability to prioritise work based on impact and system behaviour

·       Bachelor’s or Master’s degree in Computer Science (or equivalent)