Edward Osei Nyarko

Edward Osei-Nyarko LinkedIn: https://www.linkedin.com/in/edward-osei-nyarko-5789b3118/ ​ GitHub: https://github.com/nana-yaw Professional Summary Technical support–oriented engineer with a strong foundation in backend development, QA, automated testing, and troubleshooting for a large-scale SaaS property management platform. Experienced in diagnosing complex issues across frontend, backend, and API layers; building automation tools; improving user onboarding; and writing clear technical documentation. Skilled at collaborating with engineering, product, and support teams to enhance user experience and product quality. Now focused on transitioning into non-coding technical roles such as Technical Support Engineer, Support Ops, or Technical Solutions. Core Skills ●​ ●​ ●​ ●​ ●​ ●​ ●​ ●​ ●​ Technical Support & Troubleshooting API Debugging (Symfony, REST, GraphQL) Backend Development (PHP, Node.js, TypeScript, SQL) QA Testing (PHPUnit, Cypress E2E) SaaS Product Support Workflow Automation Documentation & Knowledge Base Writing Customer Communication & Problem Solving Remote Collaboration (Slack, Notion, GitHub) Key Achievements ●​ Designed and deployed a full interactive onboarding tour using driver.js, improving new‑user guidance and reducing support load. ●​ Built and maintained Cypress E2E automation, significantly increasing test coverage and stability of critical workflows. ●​ Automated complex authentication flows (session tokens, role assumptions), reducing the time required to set up test environments. ●​ Improved QA velocity by creating internal debugging utilities and reusable testing patterns. ●​ Helped uncover numerous workflow issues by deeply analyzing system behavior across backend, UI, and GraphQL layers. ●​ Strengthened cross‑team collaboration by documenting testing procedures, edge cases, and system behaviors. Professional Experience Backend Developer RentPost (Remote)​ July 10, 2023 – Present ​ - Developed backend features for a large-scale property management SaaS platform. ​ - Implemented API logic, data operations, authentication workflows, and system integrations. ​ - Worked closely with Product and Engineering teams to ship backend functionality and resolve system-level issues. ​ - Supported architectural improvements and helped diagnose performance bottlenecks. QA Engineer (GraphQL & Backend Testing) RentPost (Remote)​ Transitioned into QA role ​ - Wrote and maintained unit tests and integration tests for backend services. ​ - Tested complex GraphQL operations, including authentication flows and role-based mutations such as assumeRole(id: $id). ​ - Performed deep-dive debugging across backend and database layers to validate system behavior. ​ - Logged detailed bugs, edge cases, and workflow inconsistencies to support engineering decisions. ​ - Created documentation outlining testing patterns, known issues, and reproducible test steps. Cypress Automation Engineer RentPost (Remote)​ Progressed into UI automation responsibilities ​ - Designed, built, and maintained Cypress E2E test suites for the RentPost web application. ​ - Automated session handling, token storage, and dynamic role-selection workflows. ​ - Implemented driver.js to build an interactive onboarding tour guide, improving new-user adoption and support clarity. ​ - Created internal tooling to streamline debugging and test setup. ​ - Collaborated with Support, Product, and Engineering teams to identify trends, validate user issues, and optimize product workflows.