Software Development Engineer in Test (SDET)

TL;DR

Software Development Engineer in Test (SDET) (VoIP): Design and maintain automated tests for Hosted PBX Voice Platform with an accent on protocol behaviour, network interactions, and system reliability under load. Focus on integrating tests into CI/CD pipelines, analysing failures with logs and traces, and validating VoIP call flows using AI-assisted tools.

Hybrid in Tbilisi, Georgia. All candidates must be located in Georgia (country).

Company

Leading provider of cloud communications and collaboration tech with a focus on Hosted PBX (HPBX) Voice Platform.

What you will do

• Design and maintain automated tests across API and end-to-end system layers.
• Integrate test suites into CI/CD pipelines like GitHub Actions and Jenkins.
• Analyse failures using logs, metrics, network traces (tcpdump, Wireshark, pcap).
• Validate VoIP call flows, signalling behaviour, and execute load/reliability tests.
• Collaborate with development teams to improve testability and system reliability.
• Work in Linux environments, track defects in Jira, and use AI tools for testing.

Requirements

• Must be located in Georgia (country).
• Strong programming in Python; C/C++ preferred.
• Experience with test automation frameworks (pytest or equivalent) and CI/CD systems.
• Strong Linux experience and IP networking fundamentals (TCP/UDP, routing, NAT).
• Hands-on with tcpdump, Wireshark, pcap analysis, API/system testing, SQL databases.
• Bachelor’s or Master’s in Computer Science or equivalent; experience in distributed systems.

Nice to have

• Experience with VoIP/SIP systems, PBX/UC features, voice quality analysis (MOS, jitter).
• Load/performance testing, observability tools (Grafana, Kibana), test reporting (Allure).
• Python asyncio module.

Culture & Benefits

• Fast-paced environment built on teamwork, transparency, and accountability.
• Promote from within; long-term employee tenure (10-20+ years).
• Focus on creating great cloud technology with great people.

Hiring process

• Stage 1: Applied.
• Stage 2: Review.
• Stage 3: Interview.
• Stage 4: Hired.