Sasini De Silva

Associate QA Engineer

Sasini
De Silva

Manual & automation testing specialist — building quality-first software with precision, purpose, and a passion for reliability.

📍 Galle, Sri Lanka  ·  ISTQB Certified

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Sasini De Silva

About Me

Quality is a
mindset

I'm Sasini De Silva, a detail-oriented Associate Software QA Engineer with hands-on experience across manual testing, automation, API testing, and defect tracking.

I specialise in designing test strategies that catch real problems before they reach users — from writing test plans and executing test cases to building Selenium-based automation frameworks and conducting performance testing with JMeter.

Emailsasiniyasarad1998@gmail.com
Phone+94 757 015 007
LocationGalle, Sri Lanka
LinkedInlinkedin.com/in/sasinidesilva
ISTQB Certified Tester — Foundation Level (CTFL)

Expertise

Skills & Technologies

Testing Competencies

Manual Testing95%
API Testing (Postman)90%
Regression Testing92%
Database Testing (SQL)88%
Load Testing (JMeter)82%
Cross-Browser Testing90%

Automation

Selenium WebDriver88%
Selenium IDE85%
Test Planning & Design92%
Defect Tracking (Jira)93%
Agile / Scrum90%
CI/CD Integration75%

Languages & Development

Java82%
Python75%
JavaScript70%
SQL / MySQL85%
PHP / HTML / CSS68%
MongoDB65%

Tools & Platforms

Selenium WebDriver Selenium IDE Postman Apache JMeter Jira MySQL MongoDB Git Agile Scrum SDLC / STLC Chrome DevTools ISTQB CTFL

Career

Work Experience

From intern to associate engineer — I've grown through diverse industries including fintech, iGaming, Web3, and enterprise software, always prioritising quality and continuous improvement.

BSc (Hons) in Information Technology
Sri Lanka Institute of Information Technology (SLIIT)
2020 – 2024
ISTQB Certified Tester — CTFL

Aug 2024 — Present

Associate Software QA Engineer

BotCalm (Pvt) Ltd

  • Manual & automation testing using Selenium WebDriver on web and mobile apps in QA and UAT environments.
  • Designed and maintained detailed Test Plans, Test Cases, and Test Scenarios — integration, system, regression, smoke, and load testing.
  • API testing with Postman; database validation using SQL queries.
  • Conducted load testing with Apache JMeter, improving system response time by 25% under peak traffic.
  • Delivered KT sessions and mentored junior team members.
  • Collaborated with DevOps for smooth go-live deployments.
SeleniumPostmanJMeterJiraSQLAgile

Jan 2024 — Apr 2024

Intern Software QA Engineer

Arimac Lanka

  • Manual and automated testing using Selenium — including API, database, and cross-browser testing.
  • Executed and documented test cases; supported regression and smoke testing across multiple environments.
SeleniumAPI TestingCross-Browser

May 2022 — Jun 2023

Intern Software QA Engineer

Ceylon Dazzling Dev Holding (Pvt) Ltd

  • Assisted in manual testing of web applications — executing and documenting test cases, defect re-testing, and supporting regression testing.
  • Gained hands-on experience in SDLC processes, defect tracking, and test case management.
Manual TestingDefect TrackingSDLC

Portfolio

Featured Projects

01

Automation · Load · API

iGaming Platform (USA)

Executed manual and automation testing for a real-money gaming platform supporting 5,000+ concurrent users. Conducted API, load, regression, and smoke testing, and provided UAT support — ensuring system stability under peak traffic and seamless user experience. Ongoing.

SeleniumJMeterPostmanJiraUAT
02

Security · Blockchain · API

Web3 Crypto Wallet

Performed manual and automation testing for crypto wallet applications focused on security, blockchain transactions, and API validations. Designed Test Plans and Test Cases, maintained Test Reports, and ensured reliability and compliance of cryptocurrency operations.

SeleniumPostmanAPI TestingSecurity
03

Full-Cycle QA

Hotel Management System

Full QA cycle including manual and automation testing with API and database validation. Created test plans, test cases, and reports; executed regression and smoke testing to ensure functional accuracy across all modules.

SeleniumSQLPostmanRegression
04

Manual & Automation

Student Management System

End-to-end quality assurance — manual and automation testing, API and database validation, regression and smoke testing. Prepared comprehensive test plans and detailed QA reports throughout the project lifecycle.

SeleniumMySQLAPI TestingSmoke

Get In Touch

Let's Connect

Looking for a dedicated QA engineer? Want to discuss a project or just talk quality? I'd love to hear from you.

✉
sasiniyasarad1998@gmail.com
✆
+94 757 015 007
in
linkedin.com/in/sasinidesilva
⊕
Galle, Sri Lanka