Headline

QA Lead | 11 Years Telecom Domain | API · SIP · Diameter · SS7 · Billing | Playwright · Robot Framework · JMeter

About

Telecom QA specialist with 11 years of end-to-end testing experience at Plintron, a global MVNO enabler operating across 55+ countries. I have tested mission-critical telecom systems across the full stack — from API gateways and billing engines to protocol-level testing on SIP, Diameter, and SS7. My work spans products that handle real-time charging, voice media, SMS routing, and third-party top-up transactions at scale. I bring both the technical depth to design test strategies for complex protocol systems and the leadership to drive quality across releases. What I test: • API gateway testing (REST/XML/JSON) — ETU Electronic Top-Up platform • SIP protocol testing — IVR, voicemail, pre-call announcements, VVMS (Plintron PowerMedia) • Diameter protocol — SCap, Ro interface, calls & SMS (SCG application) • SS7 protocol — SCPNG application using MGTS tool • OCS core billing — RRBs, calls, and SMS (core charging system) How I test: • Automation: Playwright, Robot Framework • Performance: JMeter, SIPp, Seagull scenarios • Manual, protocol-level, API, and load testing • Auto deployment pipelines and CI-aware testing 11 years in one telecom platform means I don’t just find bugs — I understand the system well enough to prevent them. How I work: I automate what can be automated (Playwright, Robot Framework, MGTS), load-test what needs to perform under pressure (JMeter, SIPp, Seagull), and flag risk before it becomes a defect. I’ve cut regression cycle time by 40% and reduced deployment validation effort by 60% through pipeline automation. 📍 Chennai | Open to Onsite · Hybrid · Remote

Location

Chennai

Work experience

Lead Tester at Plintron, Jan 2023 - Present · 3 yrs 7 mos, Greater Chennai Area, Lead Tester — Plintron Jan 2024 – Present | Chennai, India • Lead QA for multiple telecom products on a global MVNO platform, owning test strategy, execution, and release sign-off • Drive automation using Playwright and Robot Framework; conduct performance testing with JMeter and SIPp/Seagull scenarios • Test SCG (Diameter protocol) — SCap and Ro interface validation for calls and SMS charging flows • Oversee SCPNG (SS7 protocol) testing using MGTS tool for signalling validation • Manage auto-deployment testing pipelines and coordinate cross-functional release readiness

Senior Test Engineer at Plintron, Jan 2020 - Present · 6 yrs 7 mos, India, Led testing of ETU (Electronic Top-Up) — an API gateway platform handling third-party top-up transactions via REST, XML, and JSON interfaces • Tested Plintron PowerMedia (SIP protocol) — validated IVR flows, voicemail deposition & retrieval, pre-call announcements, and VVMS for mobile • Executed OCS core billing system tests covering RRBs, voice calls, and SMS charging scenarios • Introduced load testing practices using JMeter, validating system behavior under peak telecom traffic

Test Engineer at Plintron, Mar 2015 - Present · 11 yrs 5 mos, Greater Chennai Area, Executed functional and protocol-level test cases across telecom products including billing and media systems • Gained hands-on exposure to XML and JSON API testing through ETU gateway platform • Built domain expertise in MVNO architecture, telecom signalling, and end-to-end service validation • Supported regression, smoke, and sanity testing cycles across product releases

Education

Bachelor of Engineering - BE, Computer Science, Jeppiaar Engineering College

Bachelor's Degree, Computational Science, invalid562524