Experience level:
More than 5 years
Education level:
Languages:
Russian: Native
English: C1
Serbian: A1
Senior QA and Technical Support Engineer with 6+ years of experience in ensuring high-quality products, resolving complex technical issues, and enhancing user experiences for SaaS and e-commerce platforms. I’m passionate about combining technical precision with a user-focused mindset to create seamless, reliable solutions.
Along with my QA expertise, I bring strong UI/UX design skills, allowing me to approach problems from a functional and customer-first perspective. Whether improving feature designs or simplifying user scenarios, I strive to make every interaction better.
Driven by analytical thinking, creativity, and a desire to make a positive impact, I aim to build reliable products that not only meet high standards but also create meaningful experiences for users.
– Established the technical support department, creating workflows, documentation, and onboarding processes from scratch.
– Diagnosed database issues, compiled analytics, and implemented solutions to enhance CRM system operations.
– Conducted end-to-end testing of new features, providing detailed bug reports and usability recommendations.
– Assisted clients with API integrations, verifying DNS records, and resolving technical challenges.
– Optimized customer service processes, improving efficiency and reducing issue resolution time.
– Worked with IoT technology for smart metering and smart city solutions, ensuring seamless data transmission.
– Diagnosed connectivity issues between base stations and smart devices, troubleshooting data flow using SQL, Terminal, and TestRail.
– Used Linux tools for deep diagnostics and troubleshooting of network and device issues.
– Assisted in optimizing data processing pipelines for metering devices, improving system performance.
– Collaborated with developers to identify and resolve software errors, improving IoT device reliability.
– Managed client accounts and created technical reports using HeidiSQL and Zabbix for real-time monitoring.
– Provided technical support and manual testing for a cloud-based SaaS platform.
Investigated API integration issues using Postman, DevTools, and logs, assisting clients in debugging requests.
– Verified front-end and back-end data consistency, identifying and resolving mismatches.
– Conducted functional and exploratory testing, identifying usability issues and edge cases.
– Assisted in troubleshooting and optimizing JavaScript-based integrations for e-commerce clients.
– Supported integration processes using HTML, JavaScript, and Google Tag Manager (GTM).
– Conducted cross-platform manual testing (Litmus, BrowserStack, real devices) for UI elements and widgets.
– Developed and implemented new visual concepts for SaaS platform features, ensuring interface design consistency.
– Conducted UX research and user scenario analysis, improving usability for client-facing features.
– Led the redesign of a branch project’s website, aligning it with modern UX/UI standards and business goals.
– Investigated and resolved confusing user scenarios, reducing support tickets and enhancing user experience.
– Created assets such as offer cards, branding materials, and feature layouts, supporting product and marketing initiatives.
– Led end-to-end testing for a SaaS cloud marketing platform handling Big Data in e-commerce.
– Designed and executed API test cases for integrations, validating authentication, request-response structure, and error handling.
– Debugged client-side JavaScript integrations, troubleshooting REST API requests, OAuth authentication tokens, and backend data flow.
– Conducted manual and exploratory testing across multiple devices, ensuring software compatibility and performance.
– Created and maintained test case execution reports, tracked defects in Jira, and ensured regression suite maintenance for stable releases.
– Collaborated with cross-functional teams, including developers, product managers, and customer support, to enhance software reliability.
– Used Postman automation scripts to optimize API regression testing, reducing manual testing time by 30%.
– Managed cross-browser testing using BrowserStack and Litmus, ensuring UI consistency across different environments.
– Led a Chrome extension testing project, improving automated validation of client integrations.
– Provided mentorship to new team members, onboarding them in QA methodologies, test case design, and defect tracking.
– Testing & QA – Manual testing, functional testing, regression, exploratory testing, UI/UX validation, usability testing, smoke testing, cross-browser testing, mobile & responsive testing, performance testing.
– API & Integration Testing – REST & JSON/XML APIs, Postman, REST-assured, API contract testing, OAuth 2.0, JWT, API key authentication, automated API test scripts.
– Test Automation – Cypress, WebdriverIO, basic Selenium/Cypress knowledge, basic Python knowledge, JavaScript & Node.js-based testing, GitHub Actions, component testing, visual regression testing, automation strategy.
– Debugging & Troubleshooting – Chrome DevTools, browser console, network sniffers (Wireshark, tcpdump), log analysis, SQL query debugging, JavaScript and Node.js error tracing, Git Bash.
– CI/CD & Microservices – Automated testing pipelines, Docker-based testing environments, GitHub Actions, Git, test integration in CI/CD workflows, microservices testing strategies.
– Test Management & Documentation – TestRail, Jira, Confluence, test plan creation, traceability matrices, defect tracking, bug lifecycle management, test case execution, test reporting.
– Collaboration & Agile – Cross-functional teamwork with developers, designers, product managers, and customer success teams. Agile/Scrum methodologies, sprint testing cycles, proactive quality ownership.
– Tools & Technologies – Git, GitHub, Postman, Figma (QA/UI handoff), SQL, HTML/CSS, JSON, YAML, Terminal/Bash scripting, Node.js, Visual Studio Code.
– UX & Product Focus – UI/UX research, usability testing, customer-first approach to QA.