Dmitrii Kuznetsov

I’m a Senior Frontend / Software Engineer with 10+ years of experience building and modernizing large-scale web applications across fintech, SaaS, and e-commerce.

My core stack is React, TypeScript, Next.js, Node.js, GraphQL, Redux, and Jest. I’m strongest in frontend architecture, authentication and account experiences, performance optimization, testing strategy, and the modernization of complex legacy systems.

At Klarna, I worked on authentication, account creation, and account management used by millions of customers. I helped build and adopt a React and TypeScript application framework and introduced a testing approach that increased coverage from 3% to more than 80%.

Previously, at PandaDoc, I built complex React and Redux interfaces, improved CRM integration performance by 50%, and optimized application bundling and development tooling. Earlier in my career, I led a team of four engineers and helped modernize large e-commerce platforms.

I’m open to fully remote, long-term B2B / independent-contractor engagements for 20–40 hours per week through my Swedish company. I can start two weeks after an accepted offer.