About Shaileshkumar
I help companies build modern, scalable web applications using React, TypeScript, Next.js, and Node.js.
With more than 10 years of experience, I have delivered software solutions across healthcare, media, automotive, travel, CRM, and security domains. My expertise includes frontend architecture, micro-frontends, full-stack development, performance optimization, and building maintainable applications that scale.
I have worked on complex enterprise platforms, clinician-facing healthcare applications, AI-powered user experiences, chatbot integrations, and WebAssembly-based browser solutions. Beyond implementation, I contribute to architecture decisions, technical direction, code reviews, and collaboration across product, design, QA, and engineering teams.
My services include:
• React & Next.js development
• TypeScript applications
• Frontend architecture
• Full-stack development with Node.js
• Micro-frontends
• Performance optimization
• Design systems and component libraries
• Technical consulting
• AI-powered web applications
I enjoy turning complex requirements into reliable, user-friendly products that deliver measurable business value. Whether you need a senior engineer to strengthen an existing team or take ownership of a project from design to delivery, I can help.
English
Native or bilingual
German
Conversational
Can work on-site
Frankfurt am Main (up to 50km)
Experience
- Align Technology,Senior Software EngineerHEALTH AND WELLNESSAugust 2023 - Today (2 years and 10 months)64 Darmstadt, Germany
- Delivered complex healthcare technology products using React, TypeScript, and Next.js, focusing on performance, usability, and production quality
- Helped evolve a micro-frontend-based platform, improving modularity, reuse, and integration across applications
- Contributed to a WebAssembly-based browser workflow, enabling real-time client-side processing for media-heavy use cases
- Built interactive, performance-sensitive UI features for clinician-facing applications
- Designed and built a dental questionnaire application with structured form and AI-driven chatbot interaction modes, emphasizing maintainable architecture and intuitive user experience
- Leveraged modern AI-assisted development tooling, including Claude Code, to accelerate prototyping, implementation, and engineering workflows
- Accenture Song,Senior Frontend Developer (App Dev Associate Manager)DIGITAL AND ITJanuary 2022 - July 2023 (1 year and 6 months)Kronberg im Taunus, HE, Germany• • Built customer payment-related features for a leading European media company using React and TypeScript, integrating with headless CMS and REST APIs.• • Developed a stock locator solution for a major automotive group using a micro-frontend architecture.• • Supported and mentoredjunior developers through code reviews and guidance on frontend best practices.• • Implemented Storybook for a React component library, improving documentation and UI consistency across teams. Tech: React, TypeScript, Micro-frontends, Storybook, SCSS, APIs
- BD4Travel GmbH,Senior Frontend DeveloperTRAVEL AND TOURISMOctober 2021 - December 2021 (2 months)Frankfurt, Germany
- Developed and maintained a CRM application using React.js and TypeScript, with backend integration via Node.js and Express framwork.
- Implemented component documentation using Storybook and promoted reusable UI patterns.
- Built behavior-based website content injection using Preact and JavaScript.
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Education
- MScSRH Hochschule Heidelberg2014MSc
- BESouth Gujarat University2009BE