# Vlad Timofeev > Software Engineer Location: United States, United States Profile: https://flows.cv/vladtimofeev • Over 10 years of professional experience in Software Engineering, including 3 years with Amazon. • Versatile and capable of fulfilling various roles, particularly server-side, infrastructure, and tools engineering. • Open-minded about new ideas, routine task automation, and process improvements; open to learning and teaching. ## Work Experience ### Software Development Engineer @ Amazon Jan 2021 – Jan 2023 | United States Product: Horizonte – an internal web framework, which powers Amazon.com, Whole Foods, Kindle Store, IMDb, and more than 1,700 other experiences owned by Amazon. • Collaborated with partner teams to integrate and roll out new framework features and improvements. Brought ARM architecture support to the framework as an alternative to x86, which allowed 30–60% more cost efficiency. • Performed on-call duty and responded to incidents. Worked with the Security department to assess security issues, developed and executed vulnerability remediation plans. • Improved the reliability of the CI/CD infrastructure. In particular, eliminated intermittent integration test failures, which resulted in 20–30% faster code delivery and reduced operational overhead. Product: Hiring Service that Amazon uses to hire tens of thousands people daily. • Made the Hiring Service architecture design approved by Security department. Designed and implemented the key components of the service related to the API, database persistence, and job scheduling. • Executed the managed launch of the new service, which initially took over 25% of the total Amazon hiring volume from the legacy system. • Mentored other engineers and helped their career advancement. ### Software Engineer @ Coin Metrics Jan 2020 – Jan 2020 Product: a set of tools that provide and visualize blockchain and market data of Bitcoin and cryptocurrencies. The data is gathered from multiple sources: self-hosted blockchain nodes, APIs of centralized exchanges, and other third-parties such as FRED (Federal Reserve Economic Data); aggregated and converted into metrics using data science methods; and sold to major financial institutions, such as Fidelity. • Created dynamic price charts for assets and index pages that showcase on-chain and market data collected by the research team, made enhancements to the data visualization tools. • Implemented and maintained RESTful API proxy services that collect, post-process, and cache data from the primary API and external APIs, and provide it to the web and mobile applications. ### Lead Mobile Developer @ Bitfinex Jan 2019 – Jan 2019 Product: Bitfinex website and the mobile app. • Created and launched a new cross-platform Bitfinex mobile application on Google Play and Apple Store, which complements the web version and facilitates trading on the go. • Introduced a shared library of reusable functions and components to improve interoperability between two sister teams. • Implemented logic behind a ticker list – interactive widget featured on the landing page of Bitfinex.com. ### Senior Software Developer @ Bitfinex Jan 2017 – Jan 2019 ### Full Stack Engineer @ semilimes Inc. Jan 2016 – Jan 2017 ### Independent Developer @ Unknown Jan 2016 – Jan 2016 ### Software Engineer @ Xored Software Inc Jan 2014 – Jan 2016 Product: Spirent Velocity – lab automation solution. • Added support for additional hardware devices, such as network switches, to the functionality. • Implemented tests to evaluate the product's performance and identify code modifications leading to its degradation. ### Junior C++ Developer @ Alawar Jan 2013 – Jan 2013 ## Education ### Bachelor's degree in Computer Science Novosibirsk State University (NSU) ## Contact & Social - LinkedIn: https://linkedin.com/in/vladtim --- Source: https://flows.cv/vladtimofeev JSON Resume: https://flows.cv/vladtimofeev/resume.json Last updated: 2026-03-28