Hi, I'm Aditya Dwi Cahyono

Software Engineer in Test with 4+ years' experience delivering quality outcomes across web and mobile applications. Strong background in manual and automation testing, with exposure to performance and security testing across industries including E-Commerce, Retail, Logistics, Healthcare, Rental, and AI. Experienced in building scalable test frameworks, improving QA processes, and supporting CI/CD delivery. Proficient in 10+ testing tools such as Cypress, Selenium, WebdriverIO, Appium, Jest, Robot Framework, and Katalon Studio.

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Aditya Dwi Cahyono

Software Engineer in Test

Automation Expert

About Me

I'm a passionate Software Engineer in Test with extensive experience in both manual and automated testing. My expertise spans across multiple domains including E-Commerce, Retail, Logistics, Healthcare, Rental, and AI applications.

I specialize in implementing various automation frameworks from scratch, including Page Objects, Keyword Driven, Data Driven, and Hybrid frameworks. With hands-on experience in performance and security testing using JMeter, k6, and Postman, I ensure applications meet the highest quality standards.

Key Automation Projects:

  • Built Playwright automation framework from scratch for Mengantar Logistic, automating 150+ test cases
  • Implemented comprehensive testing for Contactless Check-In system at VOUCH using Playwright
  • Created automated test plans and frameworks for FEEDLOOP AI platform
  • Developed Cypress automation scripts for 100+ test cases at REFACTORY.ID
  • Set up CI/CD pipelines with GitHub Actions for automated testing on every PR

4+

Years Experience

30+

Projects Completed

30+

Automation Project

10+

Testing Tools

Work Experience

Senior QA Engineer

July 2025 – Now

Mengantar Logistic - Indonesia, Remote

  • Executed manual testing for core features (Create Order, Tracking, Pricing, Delivery Flow) covering 100+ test scenarios across the web.
  • Built a Playwright automation framework from zero and automated 150+ test cases, cutting regression time by 60%.
  • Set up CI/CD pipelines via GitHub Actions to run automated tests on every PR, improving release efficiency by 30%.
  • Integrated automation reporting into Jira, enabling faster defect visibility and improving team collaboration by 40%.
  • Reported 40–60 bugs per month, ensuring high defect visibility and faster root-cause resolution.

QA Engineer

Oct 2024 – July 2025

VOUCH - Singapore, Remote

  • Handled QA process for Contactless Check-In (CCI) Version 2 and 3 using Playwright
  • Managed deployment and on-site testing at 3-5 star hotels across Singapore
  • Conducted international payment testing across multiple gateways (2C2P, Adyen, RedDot, Fiserv, Stripe)
  • Collaborated with cross-functional teams to improve performance and resolve issues

QA Engineer

Oct 2023 – Oct 2024

FEEDLOOP AI - Bandung, Remote

  • Developed comprehensive test plans and 150+ test cases, increasing test coverage by 35%
  • Reduced customer support tickets by 30% and improved product quality by 25%
  • Identified 150+ bugs pre-release, leading to 30% drop in post-launch issues
  • Improved application load times by 25% through performance optimization

Coding Tutor

Feb 2024 – Present

KODLAND - Remote

  • Guided coding lessons for children aged 10-18 focusing on Python
  • Mentored 30+ students, improving assignment completion by 40%
  • Resolved code issues for 30+ students weekly, reducing errors by 40%

QA Engineer

Sep 2022 – Sep 2023

REFACTORY.ID

  • Planned and executed test plans for 40+ software releases with 100% coverage
  • Detected and documented 400+ software defects, reducing user issues by 35%
  • Initiated automation scripts for 100+ test cases using Cypress, improving efficiency by 45%
  • Created automation frameworks in Robot Framework and Katalon Studio

Technical Skills

Programming Languages

Python JavaScript TypeScript SQL Java Swift R Ruby C#

Automation Tools

Cypress Selenium Playwright WebdriverIO Appium Robot Framework Katalon Studio Jest Karate Framework Puppeteer

Databases

MySQL PostgreSQL Microsoft SQL Server MongoDB Google Cloud SQL

Performance Testing

JMeter k6 Postman

Tools & Platforms

Git GitHub Figma Jira TestRail DBeaver Slack CI/CD

Mobile Development

SwiftUI iOS Development

Portfolio Project

Education

Apple Developer Academy @ Infinite Learning

Feb - Dec 2024

Researcher and iOS Developer

Collaborated to conceptualize, design, and develop innovative iOS applications using Swift and SwiftUI. Completed all stages of app development lifecycle from ideation to deployment.

Islamic State University Maulana Malik Ibrahim Malang

Jul 2018 – Jul 2022

Bachelor of Mathematics, Major in Applied Mathematics

Comprehensive education in applied mathematics with focus on analytical and problem-solving skills applicable to software testing and quality assurance.

Certifications & Training

LambdaTest Software Testing Professional

LinkedIn Learning

LambdaTest Test Automation Professional

LinkedIn Learning

DevOps Professional Certificate

PagerDuty and LinkedIn

Software Testing Foundation Path

LinkedIn Learning

API Testing Path

LinkedIn Learning

Programming Foundations Path

LinkedIn Learning

Test Automation Path

LinkedIn Learning

Github Learning Path

LinkedIn Learning

DevOps Learning Path

LinkedIn Learning

Cloud Learning Path

LinkedIn Learning

Cloud Learning Tools Path

LinkedIn Learning

Jenkins Learning Path

LinkedIn Learning

JMeter Learning Path

LinkedIn Learning

Metrodata Camp: Business Analyst & Quality Assurance

Metrodata Camp

Google IT Automation with Python Professional

Coursera

Certified Blockchain Professional (CBP)

EC-COUNCIL

Certified Junior Office Operator (JOO)

BNSP

Data Scientist Training

Digitalent Scholarship KOMINFO

Testing Case Studies

E-Commerce Payment Gateway Testing

Automation
95% Test Coverage
150+ Test Cases
80% Time Reduced

Implemented comprehensive automated testing framework for multi-payment gateway system covering 5 different payment providers with end-to-end transaction flows.

Playwright TypeScript TestRail CI/CD

Key Outcomes:

  • Reduced testing time from 2 weeks to 2 days
  • Captured 45+ critical bugs before production
  • Achieved 95% test coverage across payment flows
  • Enabled daily regression testing

Healthcare App Performance Optimization

Performance
40% Load Time Improved
10K Concurrent Users
99.9% Uptime

Conducted comprehensive performance testing for healthcare superapp handling patient records, telemedicine, and appointment scheduling systems.

JMeter k6 Grafana Docker

Key Outcomes:

  • Improved app load time by 40%
  • Successfully handled 10K concurrent users
  • Identified and resolved 20+ performance bottlenecks
  • Reduced server response time by 60%

Hotel Booking App Mobile Testing

Mobile
50+ Device Coverage
100% Critical Path Coverage
30% Bug Reduction

Developed comprehensive mobile testing strategy for hotel booking application covering contactless check-in, payment processing, and room management features.

Appium BrowserStack Detox Fastlane

Key Outcomes:

  • Tested across 50+ device/OS combinations
  • Reduced crash rate by 30%
  • Implemented automated UI testing for critical flows
  • On-site testing at 15+ hotels in Singapore

Banking Application Security Testing

Security
100% OWASP Coverage
35+ Vulnerabilities Found
Zero Critical Issues

Conducted comprehensive security testing for banking system covering authentication, authorization, data encryption, and protection against common security vulnerabilities.

OWASP ZAP Burp Suite Postman SQL Injection Testing

Key Outcomes:

  • Identified and fixed 35+ security vulnerabilities
  • Implemented secure authentication mechanisms
  • Achieved 100% OWASP Top 10 coverage
  • Zero critical security issues in production
  • Passed all compliance and security audits

AI Platform ML Model Validation

AI/ML Testing
25 ML Models Tested
98% Prediction Accuracy
1M+ Data Points Validated

Created testing framework for AI/ML platform ensuring data quality, model accuracy, and performance across various machine learning algorithms.

Python TensorFlow MLflow Great Expectations

Key Outcomes:

  • Validated 25 ML models with 98% accuracy
  • Implemented automated data validation pipeline
  • Reduced model training errors by 45%
  • Established continuous model monitoring

Testimonials & Recommendations

LinkedIn Recommendations

View All Recommendations

Senior Engineering Manager

VOUCH, Singapore

"Aditya is an exceptional QA Engineer who brought immense value to our Contactless Check-In project. His expertise in Playwright automation and attention to detail helped us achieve 100% test coverage. He successfully managed on-site testing across multiple hotels in Singapore, ensuring our product met the highest quality standards."

2024 View on LinkedIn

Lead Developer

FEEDLOOP AI

"Working with Aditya was a game-changer for our AI platform. His comprehensive testing approach reduced our post-launch bugs by 30% and improved overall product quality significantly. He's not just a tester but a quality advocate who thinks from the user's perspective."

2023-2024 View on LinkedIn

Education Coordinator

KODLAND

"Aditya has been an outstanding coding tutor for our students. His ability to explain complex programming concepts and his patience with young learners is remarkable. He improved assignment completion rates by 40% and consistently receives excellent feedback from both students and parents."

2024-Present View on LinkedIn

Get In Touch

Let's Connect

I'm always open to discussing new opportunities, interesting projects, or just having a chat about quality assurance and testing.

adityadwic.career@gmail.com
+6289512343523
Riau Islands, Indonesia