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Your server's down at 3am. Your cloud bill doubled. Deploys are a Friday nightmare. I fix exactly this — fast, with a rollback plan for every change. Results from 49 completed projects (100% Job Success): - 99.9% uptime — real monitoring with Prometheus, Grafana, and structured alerting - 30-60% faster page loads — Nginx/Apache tuning, CDN, TLS hardening, HTTP/2 - 20-35% lower cloud costs — right-sizing, autoscaling, lifecycle policies, FinOps - Deploys in minutes — Docker, Kubernetes, GitOps (ArgoCD/Flux), GitHub Actions, GitLab CI What I do: - Infrastructure & Containers: Linux, Docker, Kubernetes, Helm, Terraform, Ansible - Cloud: AWS, GCP, Azure - CI/CD: GitHub Actions, GitLab CI, ArgoCD, blue-green/canary deploys - Monitoring: Prometheus, Grafana, OpenTelemetry, ELK/OpenSearch - Security: Vault, SBOM/SLSA, Zero Trust, WireGuard/OpenVPN - Scripting: Bash, Python, Go, PowerShell How I start: 1. Quick audit (30-60 min) — what's running, what's breaking, what costs money for no reason 2. Prioritized action plan — what to fix now, what can wait, rollback strategy for every change 3. Early wins in 48 hours — faster response, fewer alerts, lower bill, working backups I don't do "two weeks of discovery." I dig in, find the worst problems, fix them fast. Tell me what's hurting — I'll be straight about whether I can help and what it takes.

I am a QA Engineer with over 4 years of experience in manual testing, automation and quality assurance. I have worked with UI, API and design testing, created test cases in Gherkin, analyzed them through Jenkins and interacted with development teams and product owners. I use tools like Jenkins, Jira, Confluence, Zephyr, IDEA, Postman, Mailtrap, Miro, Figma, GCloud, Swagger. I help find critical bugs before release to ensure the product is stable and safe for users. I have experience in fast and accurate data entry, which saves the team time and reduces the risk of errors. I also perform transcription and annotation, ensuring high-quality processing of information for clients. My work combines attention to detail with a practical understanding of business goals, so I can be useful in both testing and data or content management tasks.

At Roobykon Software, I specialize in automating, scaling, and optimizing infrastructure and development workflows to help our clients achieve efficient, reliable software delivery. With over 10 years of hands-on experience as a Senior DevOps Specialist, I ensure robust integration and scalable operational environments for every project. Our team is dedicated to empowering companies to build and grow their marketplace businesses with cutting-edge DevOps solutions. 🏆 Area of expertise: • E-commerce (including multi-vendor marketplaces and product/service platforms) • FinTech (payment gateways, escrow systems, and custom financial solutions) • CRM Systems (tailored customer relationship management platforms) • Logistics (marketplaces for delivery, warehousing, and transportation) • Marketplace Development (B2B, B2C, peer-to-peer, product, service, and rental-based platforms using Sharetribe and custom-built solutions) • Travel and Tourism (booking platforms for accommodations, experiences, and tours) • Car Rent and Rental Websites (multi-vendor vehicle rental platforms) • Retail (multi-vendor e-commerce platforms, digital storefronts) • Construction and Real Estate (property listing marketplaces, contractor bidding platforms) • Aviation (charter services, private jet booking platforms) and boat rental (yacht, boats, jet ski) • Entertainment and Social Networking (event booking, ticketing, and social interaction platforms) • Marketing and Advertising (customized marketplaces for ad placements, influencer marketing platforms) • Insurance (platforms for comparing and purchasing insurance policies) • Industrial (B2B marketplaces for industrial goods and services) • Marketplaces for hospitality services, catering, and restaurant supplies • Mental Health and Healthcare (platforms for telemedicine, therapy services, healthcare provider listings) • Management (resource management platforms for HR, procurement, and project collaboration) Got an idea but unsure how to make it happen? We’ll provide tailored solutions to fit any budget and ensure everything is ready to go. With every project, we work as if it’s our own, always prioritizing your success. Buzzwords: Automation Continuous Integration Continuous Deployment (CI/CD) Infrastructure as Code (IaC) Microservices Orchestration Docker Kubernetes Monitoring Logging Containerization Scalability Load Balancing High Availability Disaster Recovery Fault Tolerance Infrastructure Automation Blue-Green Deployment Canary Deployment DevSecOps Secrets Management Immutable Infrastructure Jenkins Ansible Terraform GitOps Incident Management Rollback Auto-scaling EC2 S3 Lambda RDS Elastic Beanstalk CloudFormation ECS Fargate EKS Route 53 CloudWatch IAM SQS SNS CloudFront VPC Elastic Load Balancer (ELB) Redshift DynamoDB AWS Backup AWS CLI CloudTrail Security Groups DNS Management SSL Certificates Hosting Control Panel Domain Management Website Security cPanel Website Backup GoDaddy API Dynos Heroku Pipelines Add-ons Heroku Postgres Heroku Redis Heroku CLI Automated Deployments Buildpacks Git-based Deployments Jenkins CircleCI GitLab CI GitHub Actions Travis CI Pipeline Automation Continuous Testing Continuous Delivery Code Coverage Artifacts Rollbacks Webhooks Build Automation Docker Integration Deployment Automation Serverless Architecture Cloud Infrastructure Virtual Machines (VMs) Networking Configuration Load Balancers Storage Solutions Infrastructure Scaling VPC (Virtual Private Cloud) Network Security Monitoring Infrastructure as Code (IaC) Infrastructure Optimization Marketplace Development Multi-vendor Marketplace Sharetribe Go Sharetribe Flex Custom Marketplace Development Payment Gateway Integration Marketplace Scalability Sharetribe API Marketplace UX/UI Sharetribe Deployment MVC Architecture ActiveRecord Gem Bundler Action Cable RESTful APIs Convention over Configuration Rails Engines Active Job WebSocket Support Background Jobs TDD (Test-driven Development) Sharetribe Customization Sharetribe Expert Sharetribe Flex Sharetribe Go Sharetribe Expert Sharetribe Flex Developer Sharetribe Go Developer New Sharetribe

Docker, Helm, Kong Api Gateway, Redis, Postgres, Jenkins, AWS EC2, EFS, RDS, Elastic Cache, VPC, Route 53, S3, Prometheus, Grafana, Alertmanager, docker-compose, helm, git, ELK, Kubernetes, Locust, Jmeter, istio, HA-proxy, MongoDB, Load-testing, CI/CD, GCP.

Hi everybody, I'm Oleh – your go-to Manual/Automation QA Engineer, I am here to minimize the number of bugs and improve the quality of your products. Why Choose Me? - 3+ years testing Web applications. - 2+ years testing Mobile applications. - 5+ years creating different test documentation such as Test Cases, Bug reports, Test Plan, Checklist, etc. - Over 10 Physical devices Android/iOS/Windows/MacOS. to date, I have been able to improve more than 30 websites/mobile applications that have received satisfied users. I have worked in various sectors, including: 💰 Financial Services 🏥 Healthcare / MedTech 🚚 E-commerce 📊 SaaS 📚 Education ❤️ Social and Dating Apps ...and the list goes on! 🚀 This journey has armed me with priceless insights into market trends, startup concepts, and thriving in highly competitive environments. Why Clients Choose Me as Their 5-star 🌟 QA Engenieers: ▪️ Create detailed test documentation. ▪️ Keen eye on details. ▪️ Excellent knowledge testing methodologies. ▪️ My communication skills are a symphony of strength. ▪️ I put client satisfaction at the heart of every project. ▪️ Honesty and transparency. ...and that's just the beginning! 🚀 Ready to improve your product so that the end user is satisfied? Let's chat! 🤝 ___________________________________________________ Related keywords: Web testing, Mobile testing, Postman, API testing, Swagger, Automation testing, Cypress, Selenium, Playwriter, Regression testing, Smoke testing, Test cases, Test Plan, Check List, Function testing, non-function testing, Stress testing, Test case Design, End-To-End testing, Bug reports, Software testing

I build test automation that actually works in real projects, from writing Playwright tests to scaling them into stable E2E systems. I’m a Senior / Lead QA Automation Engineer with 7+ years of hands-on experience in UI and API automation. I write and maintain test suites, but also help teams structure QA, stabilize pipelines, and make testing a reliable part of delivery instead of a bottleneck. As a QA Lead, I’ve guided QA direction on projects, mentored engineers, and helped shape automation strategy from the ground up to production-ready coverage. I work closely with developers, PMs, and stakeholders, so I can both implement automation and take ownership of quality when needed. Most often, clients come to me, when automation doesn’t scale: regression takes too long, tests are unstable, or QA ownership is unclear. In those cases, I focus on making testing practical, maintainable, and aligned with real user behavior. Core stack: - Automation: TypeScript, JavaScript, Playwright, Cypress, Selenium, Webdriver, Appium, Cucumber, API testing - CI/CD & Infrastructure: Jenkins, AWS, Docker, GitHub Actions, GitHub, Bitbucket, GitLab - Data: MySQL, PostgreSQL, GraphQL I also have experience testing AI-driven features, including output validation, edge case handling, and ensuring consistent behavior across different inputs. I actively use AI-assisted tools like Cursor, Claude Code to speed up test development, debugging, and refactoring in real workflows. If you need someone who can write reliable automation, scale it when needed, and take ownership of QA - I’m ready to help.