Sergei Kuznetsov is a Lead Software Engineer with over 17 years of experience building distributed systems, trading platforms, and healthcare applications, currently based in Málaga, Spain.
At EPAM Systems, where he has worked since June 2021, Sergei contributes to a large-scale distributed trading platform serving a global clientele that includes government entities, central banks, corporate and public pension funds, university endowments, and charitable foundations. In his current lead capacity, he manages a team of six engineers and has established workflows for AI-assisted code generation, code review, and testing across project teams, measurably improving development efficiency and code quality. He also led the migration of a service managing sensitive trading data away from a standalone SharePoint server to Cosmos DB, modernizing the underlying architecture and improving data reliability. His contributions span feature development, production incident resolution, and strategic participation in project planning sessions.
Prior to his current role, Sergei served as Lead Software Engineer at STO Solutions LLC from March 2020 to June 2021, where he worked on Carat, a distributed application that applies natural language processing and machine learning to identify and code the severity and complexity of patient disease states from clinical notes. There, he designed and implemented a service to handle long-running operations, and reduced the loading time of a 3.5-million-entry mapping library by 65% through targeted modifications to the preloading algorithm. He also integrated the platform with third-party medical coding software and developed a proof of concept for migrating data storage from a relational database to MongoDB.
From July 2019 to March 2020, Sergei worked as a Senior Software Engineer at Imito AG in a remote capacity, contributing to imitoWound, a web and mobile application designed to improve objectivity in wound treatment and streamline collaboration among medical staff. He reworked a substantial portion of the UI components and views, achieving a client-side performance improvement of up to 30%, and reduced the bug backlog by 70%. He also implemented a comprehensive suite of end-to-end tests using Selenium and contributed new features to the company's internal dashboard and CRM systems.
As Development Team Lead at Eurekly from September 2017 to July 2019, Sergei led a team of five engineers working on an all-in-one live tutoring platform. He collaborated with the engineering team to migrate the solution from a monolithic architecture to a microservices model, improving scalability and maintainability. He worked closely with the business team to define and deliver new modules and features, and took an active role in mentoring incoming team members.
Earlier in his career, Sergei spent over four years at FeedMee AB from March 2013 to August 2017, where he led a team of three engineers in building a web-based food ordering service from inception through release. He integrated the platform with third-party payment providers including Klarna and Stripe, and personally implemented core modules covering calendar, order management, and reporting functionality. Before that, he held Senior Software Engineer positions at Paladyne Systems, which was subsequently acquired by Broadridge, and at Viacode Ltd, where he accumulated additional experience in enterprise software development.
Sergei is a Raptors Fellow at Hackathon Raptors, an invite-only community drawing top engineers from organizations including Google, Microsoft, and NVIDIA to collaborate on high-stakes hackathon challenges focused on AI, accessibility, and social innovation. The community has collectively delivered over 300 projects, and Sergei contributes as both a mentor and judge. He holds two Microsoft certifications — Azure Developer Associate and Azure AI Fundamentals.