Denys Oleksiienko QA Manual & Automation

open to work

Основная информация

Идентификатор

71473459

Домен

denysoleksiienko

Верификация

Нет

Огонёк

Нет

Товары

Отключены

Главная вики-страница

Нет данных или скрыто

Тип

Публичная страница

Тематика

Веб-студия

Главная секция

Отсутствует

Вконтакте

https://vk.com/denysoleksiienko

Описание

I am a QA Engineer with 12+ years of experience in manual & automation testing within the gambling industry 🎲 (casino platforms 🎰, live games 🎥, sports betting 🏆, and AdTech 💵). My goal is not just to find bugs 🐞, but to detect critical vulnerabilities that impact gameplay 🎮, payments 💳, and user experience 🎯. I have successfully tested dozens of high-load gaming platforms ⚡, ensuring their stability, security 🔒, payment systems 💰, bonus mechanics 🎁, and RTP accuracy. Over the past five years, I have conducted 5000+ UX audits 📊, helping businesses improve product usability 🚀 and customer retention. 🔥 Key Achievements: ✅ Automated 40% of regression testing ⚙️, reducing testing time by 50% using Cypress (UI + API) & Python (Pytest) 🤖. ✅ Detected & reported critical payment 💳 security vulnerabilities, preventing significant financial losses 💰. ✅ Enhanced RTP validation & fraud detection mechanisms 🛡️, ensuring fair play across multiple online casinos. ✅ Optimized UX/UI 🔍 audits, increasing conversion rates 🚀 and reducing churn for digital platforms 🎮 Core Skills: 🎰 Gambling & Casino QA – Functional, regression, API testing, cross-browser & cross-device testing. 🤖 Test Automation – Cypress, Pytest, JavaScript, Python, CI/CD (Jenkins, GitHub Actions). 💳 Payments & Security Testing – Fraud detection, bonus abuse prevention, RTP validation 📊 UX/UI Analysis – Heuristic evaluations, usability audits, A/B testing strategies ⚡ High-Load Testing – Experience with Ad Networks, real-time bidding, and microservices testing 🛠️ Tools & Technologies: 🔍 Testing & Debugging: Charles Proxy | Postman | Cypress | Pytest | Selenium ... 📊 Analytics & Monitoring: Google Analytics | Screaming Frog | Grafana ... 💾 Databases & Queues: MySQL | MongoDB | RabbitMQ | Redis ... 🛠️ DevOps & Cloud: Docker | Kubernetes | AWS | GCP ... 💡 I believe that QA is more than testing – it’s about ensuring seamless user experience, business security 🔒, and platform scalability 🚀. I am always open to new challenges 🎯 and eager to bring my expertise to the next ambitious gaming project 🚀 Work Experience : 🔹Freelance QA Manual Tester & UX Researcher 📈 (2016 – 2025) • Completed 5000+ UX audits improving product usability • Provided conversion optimization strategies for digital platforms 🔹 Enjoy Gaming 😇 – QA Automation / Manual QA (Oct 2023 – Dec 2024) 📌 Gambling (Live Casino, Slots, Roulette) • Automated 40% of regression tests, reducing testing time by 50% • Developed API automation for bet validation, win calculations, bonus mechanics • Implemented real-time monitoring to prevent downtime and revenue loss 🔹 Innovation Group Ukraine – QA Automation / Manual QA (Jun 2022 – Aug 2023) 📌 Ad-Network & High-Load Systems • Developed and maintained automated tests (Python, Cypress) • Improved CI/CD pipelines, integrating automated testing into releases • Conducted security testing, preventing fraud and data leaks 🔹AdBless – Manual QA | Chrome & Mobile App Testing (2016 – 2022) 📌 Ad-Network, Gambling Apps, Chrome Extensions & Mobile Apps • Conducted manual testing of Chrome extensions, ensuring cross-browser compatibility • Performed mobile app testing (Android/iOS), verifying functionality & UI/UX consistency • Executed ad network testing, validating banner placement, tracking, and integration • Optimized A/B testing strategie