Alexander Belozerov is a London-based data engineer and founder with 11 years of experience helping DTC and enterprise brands turn fragmented e-commerce and marketing signals into reliable analytics and activation pipelines. He blends deep practical knowledge of BigQuery, Apache Airflow, Python, and marketing APIs with modern front-end skills in React/Next.js—evidenced by contributions to prominent open-source projects like Neon's docs site and the Drone CI UI. Having led data migrations, forecasting and attribution work at companies such as Just Eat Takeaway and built bespoke ETL and visualization solutions for retailers, he excels at closing the gap between marketing teams and engineering by delivering production-ready data products. He runs AlexB Solutions and is a Top Rated Upwork data engineer, combining freelance agility with enterprise-grade delivery. An engineer by training who started in web analytics and SEO, he brings a rare mix of hands-on analytics, API integrations and UI polish to e-commerce data problems.
11 years of coding experience
7 years of employment as a software developer
Master's degree Information Systems and Technology, Master's degree Information Systems and Technology at Ural Federal University
Front-end for the Drone continuous integration server
Role in this project:
Front-end Developer
Contributions:14 commits, 1 PR, 15 pushes in 5 months
Contributions summary:Alex primarily contributed to the front-end development of the Drone UI. Their work focused on updating and refining the UI styles, including adjusting layout, color schemes, and responsiveness. They also removed UI elements and Google Fonts, replaced with system fonts, and fixed multiple UI issues, like iOS input styles and truncating errors, enhancing user experience and visual consistency.
Contributions:12 reviews, 94 commits, 51 PRs in 1 year 2 months
Contributions summary:Alex primarily contributed to the website's front-end development, refactoring UI components like the burger menu and mobile menu, and adding content changes. They updated links, text, and images across multiple pages, including the team, jobs, and early access pages, improving the site's user experience. Additionally, the user added SEO improvements and implemented new features for blog posts.
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