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I bring over 10 years of versatile experience in software development, with roles spanning QA engineering, Salesforce administration, WordPress development, project management, and customer support. This diverse background has given me a well-rounded understanding of software development processes and customer-centric solutions. Driven by a passion for building impactful software, I recently completed a rigorous JavaScript-focused Software Development Bootcamp to transition from QA to a full-stack development role. I enjoy building robust, maintainable applications, collaborating with teams, and delivering high-quality experiences.…I bring over 10 years of versatile experience in software development, with roles spanning QA engineering, Salesforce administration, WordPress development, project management, and customer support. This diverse background has given me a well-rounded understanding of software development processes and customer-centric solutions. Driven by a passion for building impactful software, I recently completed a rigorous JavaScript-focused Software Development Bootcamp to transition from QA to a full-stack development role. I enjoy building robust, maintainable applications, collaborating with teams, and delivering high-quality experiences.

Serhii Derkach

QA Engineer, Full Stack Developer, Web Developer, +2

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I bring over 10 years of versatile experience in software development, with roles spanning QA engineering, Salesforce administration, WordPress development, project management, and customer support. This diverse background has given me a well-rounded understanding of software development processes and customer-centric solutions. Driven by a passion for building impactful software, I recently completed a rigorous JavaScript-focused Software Development Bootcamp to transition from QA to a full-stack development role. I enjoy building robust, maintainable applications, collaborating with teams, and delivering high-quality experiences.…I bring over 10 years of versatile experience in software development, with roles spanning QA engineering, Salesforce administration, WordPress development, project management, and customer support. This diverse background has given me a well-rounded understanding of software development processes and customer-centric solutions. Driven by a passion for building impactful software, I recently completed a rigorous JavaScript-focused Software Development Bootcamp to transition from QA to a full-stack development role. I enjoy building robust, maintainable applications, collaborating with teams, and delivering high-quality experiences.

Available to hire

I bring over 10 years of versatile experience in software development, with roles spanning QA engineering, Salesforce administration, WordPress development, project management, and customer support. This diverse background has given me a well-rounded understanding of software development processes and customer-centric solutions.

Driven by a passion for building impactful software, I recently completed a rigorous JavaScript-focused Software Development Bootcamp to transition from QA to a full-stack development role. I enjoy building robust, maintainable applications, collaborating with teams, and delivering high-quality experiences.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Intermediate

Language

English

Fluent

Ukrainian

Advanced

Work Experience

Full-Stack JavaScript Developer at Freelance

April 1, 2025 - October 6, 2025

Designed and built full-stack web applications using React on the frontend, Node.js/Express on the backend, and PostgreSQL for data management. Practiced test-driven development, responsive design, and accessibility best practices; handled deployment, Git versioning, and client communication; delivered clean code, performance, and usability.

Full-Stack JavaScript Developer at Freelance

April 1, 2025 - October 6, 2025

Designed and built full-stack web applications using modern JavaScript technologies. Projects commonly employed React for the frontend, Node.js with Express on the backend, and PostgreSQL for data management. Applied test-driven development, responsive design, and accessibility best practices to ensure robust, user-friendly experiences. Responsible for deployment, version control with Git, and client communications—managing projects end-to-end with a focus on clean code, performance, and usability.

Senior QA Engineer at Roku Ukraine

October 1, 2023 - October 6, 2025

Performed functional testing of Salesforce-based projects and internal web applications, including API integration and end-to-end testing. Administered and optimized Salesforce orgs by managing user roles, security settings, and profile configurations to improve system efficiency and support bi-weekly deployments.

Senior QA Engineer at Roku Ukraine

October 1, 2023 - October 6, 2025

Performed functional testing of Salesforce-based projects and internal web applications, including API integration and end-to-end testing. Administered and optimized Salesforce org, managing user roles, security settings, and profile configurations to enhance system efficiency and enable bi-weekly deployments.

Middle QA Engineer at GlobalLogic

November 1, 2021 - October 6, 2025

Executed comprehensive testing for Salesforce projects, ensuring stability and performance amid continuous customization and automation. Contributed to the successful merger of two Salesforce orgs following a company acquisition, ensuring streamlined processes and unified automation.

Middle QA Engineer at GlobalLogic

November 1, 2021 - October 6, 2025

Executed comprehensive testing for Salesforce projects, ensuring stability and performance amid customization and automation. Contributed to the successful merger of two separate Salesforce orgs following a company acquisition, ensuring streamlined processes and unified automation.

QA Engineer at AdHive

August 1, 2020 - October 6, 2025

Conducted functional, database, and API testing, significantly improving product reliability. Enhanced testing processes, increasing overall efficiency and product quality for an AI-powered influencer marketing and analytics platform. Provided top-tier technical and customer support, improving user satisfaction and engagement.

QA Engineer at AdHive

August 1, 2020 - October 6, 2025

Web Developer at Freelance

January 1, 2018 - October 6, 2025

Developed and maintained over 80 WordPress websites for international clients, delivering high-quality digital solutions. Optimized website performance, security, and SEO, increasing client satisfaction and user engagement.

Web Developer at Freelance

January 1, 2018 - October 6, 2025

Project Manager at ABFX Group

July 1, 2015 - October 6, 2025

Managed a cross-functional team of up to 10 developers and designers, delivering over 50 projects. Conducted acceptance testing and worked closely with clients to ensure project alignment with business needs. Improved internal workflows, accelerating project delivery and customer satisfaction.

Project Manager at ABFX Group

July 1, 2015 - October 6, 2025

Managed a cross-functional team of up to 10 developers and designers, successfully delivering over 50 projects. Conducted acceptance testing and worked closely with clients to ensure project alignment with business needs. Improved internal workflows, enhancing project delivery speed and customer satisfaction.