Available to hire
I’m Denis Mikhailov, a Senior Frontend Engineer with over 20 years of experience building scalable, high-load, production-ready web applications. My core expertise spans modern JavaScript, TypeScript, Web Components, React, Next.js, and Flux-based architectures. I design scalable UI systems and micro-frontend approaches, turning complex requirements into robust, reusable components and delivering polished user experiences.
Skills
Experience Level
Expert
Expert
Expert
Expert
Expert
Expert
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Expert
Language
English
Advanced
Polish
Intermediate
Russian
Fluent
Work Experience
Senior Frontend Developer at Lottoland
March 1, 2015 - PresentLeading frontend development for scalable, production-ready web applications using TypeScript, React, Next.js, and Web Components. Drove accessibility improvements to WCAG compliance; mentored team members and conducted interviews. Migrated monolithic content to Magnolia CMS; built a multi-tenant frontend engine with LitElement/React and Flux patterns; created reusable components and scalable UI systems across multiple products. Implemented event-driven workflows with Kafka; optimized assets and caching with Cloudflare; established CI/CD workflows with Jenkins and GitLab; supported on-call rotations to maintain platform stability.
Lead Software Developer at INTERVALECJS C
January 1, 2009 - January 1, 2015Designed and maintained an internal UI framework (ExtJS/Java) and built admin consoles for major financial institutions (GCS, FUIB, Global Payments Europe, MTS).
Web Developer at NVP Modem
January 1, 2006 - January 1, 2009Developed the BOSS analytic portal for Belarusnet and Tatneft (ExtJS + XSL). Created the AMT-100 timing monitoring system (ExtJS + C#).
Web Developer at R DUP 'Marker'
January 1, 2003 - January 1, 2006Built educational department websites and internal training tools. Developed internal search engines and library management systems (VBScript, XSL, IIS).
Developer at K BSP Gomel
January 1, 2002 - January 1, 2003Created monitoring system for gas pipe sensors (C++).
Education
Bachelor's Degree in Software Development at Gomel State University
January 1, 1997 - January 1, 2002Qualifications
PA-DSS Certification
January 11, 2030 - December 16, 2025Industry Experience
Software & Internet, Gaming, Financial Services, Media & Entertainment, Professional Services
Skills
Experience Level
Expert
Expert
Expert
Expert
Expert
Expert
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Expert
Expert
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