Sahan Dulanjaya

QA Automation Engineer

Freelancer

API Tester

ISTQB Certified

Web3 Enthusiast

Sahan Dulanjaya

QA Automation Engineer

Freelancer

API Tester

ISTQB Certified

Web3 Enthusiast

About Me

Quality. Precision. Trust.

I'm a dedicated QA Automation Engineer with 1.5+ years of experience in both manual and automated testing, ensuring seamless, bug-free user experiences across web and mobile applications. I specialize in creating reliable test automation frameworks using Selenium, Playwright, TestNG, and Java, while also handling API testing with tools like Postman and managing workflows with JIRA.

Beyond QA, I’m deeply interested in the crypto and Web3 space, exploring how blockchain technology shapes the future of decentralized systems.

As a Freelancer, I've contributed to numerous projects across different industries. In the crypto and Web3 space, I’ve built and delivered over 10 websites for blockchain-based projects and collaborated with multiple crypto teams to support their launches, creating content for social media, managing marketing campaigns, and QA processes. This has given me unique insight into the fast-paced world of decentralized technologies.

I’m always open to learning, collaborating, and tackling new challenges that push the boundaries of quality and innovation.

  • Work: Open to Full-Time Roles
  • Freelance: Available
  • Focus Areas: QA Automation, Web Testing, Web3
  • Location: Colombo, Sri Lanka
My Services
Test Automation Development

I design and implement robust test automation frameworks using tools like Selenium, Playwright, and TestNG, ensuring scalable, maintainable, and fast test execution across web and API layers.

Manual & Exploratory Testing

Thorough testing beyond scripts and covering functional, UI, and regression testing to catch edge cases and unexpected behaviors. Ideal for early-stage projects or fast iteration cycles.

QA Strategy & Consulting

I help teams build effective QA workflows from scratch, test planning, bug reporting, release validation, and integration into CI/CD pipelines for smoother, safer deployments.

Web Design & Development (Crypto/Niche Projects)

From landing pages to full marketing websites, I’ve built 10+ websites for crypto and Web3 projects custom-built to match branding, showcase utility, and support token launches.

Tools & Technologies
Tools
  • Selenium, Playwright, TestNG
  • Postman, JIRA, Git
  • Jenkins, Maven, GitHub Actions
  • Java, JavaScript, GitHub Actions
Technologies
  • REST API Testing, JSON, XML
  • Java, JavaScript
  • Continuous Integration / Deployment (CI/CD)
  • Agile & Scrum methodologies
Testimonials
Fun Facts
3AM Peak Creativity Time
1 000 Cups Of Coffee Consumed
Resume
Experience
QA Engineer
August 2024 - July 2025
QA Engineer
AK NINE Solutions (Pvt) Ltd

Performed comprehensive manual and automated testing across web applications, utilizing Selenium and Playwright for UI automation and Postman for API validation. Developed and maintained test scripts, enhanced test coverage, and ensured product quality through functional and regression testing. Worked closely with cross-functional teams to verify requirements, identify defects, and support continuous delivery in agile environments.

Associate QA Engineer
February 2024 - July 2024
Associate QA Engineer
AK NINE Solutions (Pvt) Ltd

Conducted comprehensive manual and automated testing across web and mobile platforms, ensuring feature stability and performance. Built and maintained Selenium test suites, executed API testing with Postman, and led regression cycles for major releases. Collaborated closely with developers, product owners, and DevOps teams to refine requirements, triage bugs, and integrate testing into CI/CD pipelines, contributing to high product quality in agile sprints.

Quality Assurance Engineer Intern
June 2023 – December 2023
Quality Assurance Engineer Intern
eBEYONDS (Pvt) Ltd

Conducted end-to-end manual and automated testing across e-commerce, payment, education, and cloud platforms. Developed Selenium scripts, authored detailed test cases, and performed API, stress, and load testing using Postman and JMeter. Identified and reported defects using JIRA, collaborated with developers for quick resolution, and ensured secure, scalable, and user-friendly systems through functional, regression, and performance testing in agile environments.

Education and Certifications
January 2025
ISTQB Certified Tester – Foundation Level certification (CTFL v4.0)
International Software Testing Qualifications Board (ISTQB)
Certificate
2021 - 2024
BSc (Hons) in Information Technology
Sri Lanka Institute of Information Technology (SLIIT)
2020
Certificate in Java Application Development (Java SE)
University of Colombo School of Computing
2020
Advanced Level (A/L) Certificate
CWW Kannangara Central College
Publications
June 2025
FireWatch: LoRa-based Wildfire Detection and Alert System
This publication introduces a real-time wildfire detection and communication system that integrates LoRa-based ad hoc networks with blockchain technology to enhance firefighting coordination. The system leverages secure, long-range communication, thermal drone imagery, and machine learning to enable early wildfire prediction. Presented at the International Conference on Advances in Technology and Computing (ICATC 2024) at the University of Kelaniya and published by IEEE, the research offers a scalable and sustainable approach to wildfire management in Sri Lanka. More details can be found at firewatchlk.org .
See Publication
Skills
Overall
  • Quality Assurance & Testing
  • Test Automation (Selenium, Playwright)
  • Defect Management & Reporting (JIRA, Bug Tracking)
  • Version Control & Collaboration (Git, GitHub)
Languages
  • Java
  • JavaScript
Checklist
  • Problem Solving
    90%
  • Collaboration
    80%
  • Adaptability
    90%
  • Critical thinking
    95%
Knowledge
  • Creative thinking
  • Problem-solving
  • Practical thinking
  • Teamwork
  • Excellent decision-making
  • Advertising services include
  • Communication
  • Adaptability
Freelance Projects
Get in Touch
  • Email: sahandulanjaya02@gmail.com
  • Phone: +94 70 231 0660
Contact Form