# Valerii Chernikov > Backend Software Engineer | Java, REST APIs, AWS | Performance Optimization & Test Automation Expert Location: San Francisco Bay Area, United States Profile: https://flows.cv/valerii Backend Software Engineer with 4+ years of experience in Java, REST APIs, and relational databases. Experienced in test automation and optimizing application performance. Interested in building reliable and efficient solutions for complex applications. ## Work Experience ### Software Engineer @ Excelfore Corporation Jan 2022 – Present | Fremont, California, United States Backend development in automotive software, focusing on OTA updates, data integration, and connectivity solutions ### QA Engineer @ Wildberries Jan 2021 – Jan 2022 | Moscow, Russia Automated testing for an e-commerce platform, including security testing and creation of test suites to improve product reliability ### QA Engineer @ Russian Space Systems Jan 2020 – Jan 2021 | Moscow, Russia Defined and managed requirements, collaborated with development teams, and performed testing to ensure application functionality and stability ## Education ### Information systems and telecommunications Bauman Moscow State Technical University ### Bachelor's degree in Physical Education and Sports Immanuel Kant Baltic Federal University ## Contact & Social - LinkedIn: https://linkedin.com/in/valerii-chernikov --- Source: https://flows.cv/valerii JSON Resume: https://flows.cv/valerii/resume.json Last updated: 2026-04-10