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Open to New Opportunities · Chennai, India

S. Kaarthikeyan

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End-to-end quality engineering for AI-powered banking security
from test strategy and Selenium automation to L2 production support.

0 + Years in QA
0 + Releases Delivered
0 + Bugs Found / Release
0 % Regression Speedup
SeleniumJavaTestNG PostmanSQL ServerBanking Security
S. Kaarthikeyan
Software Engineer · Rax-Tech International
01 — About

Turning complex systems into reliable software

Started as a Junior Tester at Rax-Tech International in December 2022. Earned a promotion to Software Engineer within a year for consistent quality delivery across 15+ production releases of AI-based banking security platforms.

3.6 years of expertise across the full STLC & SDLC — Functional, Regression, Integration, System, Smoke, Sanity & UAT Testing for Web & Desktop Applications. Proficient in Postman, Jmeter, SQL Database Testing, and Agile/Scrum ceremonies.

Built a Selenium WebDriver + Java + TestNG automation suite that cut regression time by 87% (8h → 1h) — integrated with CI/CD pipeline and directly accelerating release velocity.

🛡️ Banking Security 🤖 AI Testing ⚡ Test Automation 🔍 QA Champion
Company Rax-Tech International
Role Software Engineer
Domain Banking Security
Promoted ↑ Junior → SE (2023)
Location Chennai, India
Education B.Tech EEE — Vel Tech
02 — Skills

Tools & Expertise

Testing

16
Manual TestingFunctional TestingRegression Testing Integration TestingSystem TestingSmoke Testing Sanity TestingUATExploratory Testing Black Box TestingEnd-to-End Testing API TestingPerformance TestingDB Validation Test PlanningTest Case Design

Automation & Languages

6
Selenium WebDriver Java TestNG Maven SQL Git

Tools

9
Postman JMeter SQL Server IIS Wireshark Eclipse IDE Git

Domain

4
Banking SecurityAI Video Analytics Access ControlEnterprise Apps

Methodology

9
STLCSDLCDefect Life Cycle AgileScrumWaterfall Test StrategyRequirement AnalysisRTM

Platforms

5
Web Application TestingMobile App Testing Desktop App TestingCross-Browser TestingCross-Platform Testing

Test Management

5
Bug TrackingDefect ReportingRoot Cause Analysis Test ReportingTest Documentation

AI & Monitoring

5
Grafana Prometheus Claude (Anthropic) ChatGPT AI-assisted Development
03 — Experience

Where I've Worked

Rax-Tech International

Chennai, India
Dec 2022 – Present ↑ Promoted 2023
Software Engineer — Testing, Validation & Support
  • Promoted from Junior Tester to Software Engineer (2023) for consistent quality delivery across 15+ production releases of AI-based banking security platforms
  • Executed complete STLC & SDLC — Functional, Regression, Integration, System, Smoke, Sanity & UAT Testing for Web & Desktop Applications
  • Designed 200+ Test Cases per release cycle with full RTM; managed Defect Life Cycle from bug logging through Root Cause Analysis to closure
  • API Testing via Postman (REST endpoint validation) and SQL & Database Testing for data integrity and backend validation
  • Cross-Browser & Cross-Platform Testing across multiple environments for ATM surveillance and ERP systems
  • Led UAT sessions, provided L2 Production Support, and delivered client demos to banking institutions
  • Built Selenium WebDriver + Java + TestNG framework — 87% faster regression (8h → 1h); integrated with CI/CD pipeline
  • Participated in Agile/Scrum ceremonies — sprint planning, daily standups, retrospectives, and defect triage with cross-functional teams
SeleniumJavaTestNGMaven PostmanJMeterSQL ServerWireshark Git
04 — Projects

What I've Built & Tested

02
Automation 87% Faster

ACS — Access Control System

Manual & Integration Testing of OTP-based Multi-Factor Authentication for bank locker security. Built Selenium WebDriver + Java + TestNG framework — 87% reduction in regression time (8h → 1h); integrated with CI/CD pipeline.

SeleniumJavaTestNGMavenCI/CD
Bank Locker Security MFA Testing
03
Monitoring

CMMS — Central Monitoring

System & UAT Testing for real-time alert pipelines, device monitoring dashboards, and notification workflows ensuring 24/7 banking infrastructure reliability.

System TestingUATSQL ServerIntegration
24/7 Reliability Banking Infrastructure
04
Enterprise

ERP — Enterprise Resource Planning

Functional & Regression Testing across accounting, project management, and supply chain modules. Validated data integrity via SQL Database Testing and managed full defect lifecycle.

FunctionalRegressionUATSQL Server
Full ERP Suite SQL DB Testing
05 — Personal Projects

Built & Shipped on the Side

Products I've independently built and launched using AI-assisted development and vibe coding — live and in production.

01
In Development Vibe Coded

MimiCart – WhatsApp E-Commerce

No-code storefront builder for WhatsApp order management. Built and shipped using AI-assisted development with Claude and Lovable.

ClaudeLovableNo-CodeWhatsApp
E-Commerce Platform mimicart.shop ↗
02
Live Vibe Coded

KJMailDesk – Disposable Email

Privacy-first temporary email platform with real-time delivery, SEO optimisation, and ad monetisation. Built with AI-assisted development.

AI-assistedSEOPrivacyAd Monetisation
Email Service kjmaildesk.dev ↗
03
Live Vibe Coded

TrackInvo – Inventory & Billing

Inventory and billing management web app for small and medium-sized businesses. Currently under active development.

AI-assistedWeb AppSMB
Inventory Management trackinvo.netlify.app ↗
06 — Education

Academic Background

B.Tech — Electrical & Electronics Engineering

Vel Tech University, Chennai

2015 – 2021 CGPA 7.13 / 10

Software Testing — Manual & Automation

Besant Technologies · Professional Certification

Mar – Aug 2021
Manual TestingSeleniumJava
07 — Contact

Let's Work Together

Open to opportunities, collaborations, and interesting conversations.