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I am a Senior Software Engineer with 10+ years of experience delivering high-quality web applications and responsive websites. I specialize in HTML, CSS, JavaScript, and modern frameworks including React, Vue, and Angular. I have a proven ability to deploy rapid MVP solutions, optimize UI/UX, ensure cross-browser compatibility, and handle end-to-end web development from design to deployment. I also bring a strong background in cloud hosting, domain setup, and basic SEO. I enjoy collaborating with remote teams and delivering under tight deadlines.…I am a Senior Software Engineer with 10+ years of experience delivering high-quality web applications and responsive websites. I specialize in HTML, CSS, JavaScript, and modern frameworks including React, Vue, and Angular. I have a proven ability to deploy rapid MVP solutions, optimize UI/UX, ensure cross-browser compatibility, and handle end-to-end web development from design to deployment. I also bring a strong background in cloud hosting, domain setup, and basic SEO. I enjoy collaborating with remote teams and delivering under tight deadlines.

Kamil Serwata

Full Stack Developer, Web Developer, Back-End Developer, +2

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I am a Senior Software Engineer with 10+ years of experience delivering high-quality web applications and responsive websites. I specialize in HTML, CSS, JavaScript, and modern frameworks including React, Vue, and Angular. I have a proven ability to deploy rapid MVP solutions, optimize UI/UX, ensure cross-browser compatibility, and handle end-to-end web development from design to deployment. I also bring a strong background in cloud hosting, domain setup, and basic SEO. I enjoy collaborating with remote teams and delivering under tight deadlines.…I am a Senior Software Engineer with 10+ years of experience delivering high-quality web applications and responsive websites. I specialize in HTML, CSS, JavaScript, and modern frameworks including React, Vue, and Angular. I have a proven ability to deploy rapid MVP solutions, optimize UI/UX, ensure cross-browser compatibility, and handle end-to-end web development from design to deployment. I also bring a strong background in cloud hosting, domain setup, and basic SEO. I enjoy collaborating with remote teams and delivering under tight deadlines.

Available to hire

I am a Senior Software Engineer with 10+ years of experience delivering high-quality web applications and responsive websites. I specialize in HTML, CSS, JavaScript, and modern frameworks including React, Vue, and Angular.

I have a proven ability to deploy rapid MVP solutions, optimize UI/UX, ensure cross-browser compatibility, and handle end-to-end web development from design to deployment. I also bring a strong background in cloud hosting, domain setup, and basic SEO. I enjoy collaborating with remote teams and delivering under tight deadlines.

Skills

Experience Level

Expert

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Expert

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Expert

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Expert

Intermediate

Language

English

Fluent

Polish

Fluent

Work Experience

Senior Software Engineer at VT Netzwelt

May 1, 2022 - Present

Led development of multiple responsive web applications using HTML5, CSS3, JavaScript, React, and TailwindCSS, delivering modern UI/UX across desktop and mobile. Implemented one-page landing pages with full domain setup, AWS S3/EC2 hosting, and integration of basic SEO for faster indexing. Optimized performance to achieve ~40% faster loading times across browsers and devices. Designed and implemented reusable components with React, StoryBook, and TypeScript to accelerate MVP deployment. Collaborated with product and design teams to create wireframes, prototypes, and production-ready one-page websites. Configured CI/CD pipelines using GitHub Actions and Docker for streamlined deployment and version control. Implemented responsive layouts using CSS Grid and Flexbox with TailwindCSS. Integrated forms and dynamic content using React hooks and RESTful APIs for interactive one-page solutions. Mentored junior developers on HTML, CSS, JavaScript, responsive design, and rapid prototyping. Maint

Senior Software Engineer at VT Netzwelt

May 1, 2022 - Present

Led frontend development of a decentralized gaming and DeFi platform using React, TypeScript, Web3.js, and Ethers.js for blockchain connectivity and smart contract integration. Implemented wallet authentication with MetaMask and WalletConnect for secure transactions and user onboarding. Developed reusable UI components using React Hooks, Redux Toolkit, TailwindCSS, and Storybook ensuring performance and modularity. Optimized application load speed and responsiveness through Vite and Webpack configuration, reducing bundle size by 25%. Integrated GraphQL and REST APIs for DeFi data visualization and real-time token market dashboards using React Query and D3.js. Deployed frontend to AWS S3 + CloudFront with Dockerized CI/CD pipelines via GitHub Actions. Collaborated with designers in Figma to translate design systems into production-ready code, improving UX consistency. Applied SOLID principles and MicroFrontend design for scalability and maintainability. Implemented unit and E2E testing

Senior Software Engineer at VT Netswelt

May 1, 2022 - Present

Led migration of complex web-based AI education platforms from Replit to AWS, ensuring self-marking services and integrated chatbot modules remained functional. Designed microservices architecture using Python, FastAPI, Node.js, and Django to enhance platform scalability and maintainability. Developed frontend interfaces with React, Next.js, and Redux, delivering responsive UI integrated with AI services. Optimized AI components with NumPy/Pandas and custom ML pipelines, reducing latency by ~30%. Built RESTful APIs and GraphQL endpoints with authentication and RBAC. Implemented CI/CD pipelines with Docker, Kubernetes, AWS Lambda, and GitHub Actions for automated, zero-downtime releases. Integrated PostgreSQL and MongoDB with SQLAlchemy and Prisma. Configured Kafka and AWS SNS/SQS for real-time updates and asynchronous processing. Established testing strategies (Pytest, Jest, Playwright, Postman) and documented platform roadmap for maintainability and onboarding.

Senior Software Engineer at VT Netswelt

May 1, 2022 - Present

Led migration of complex web-based AI education platforms from Replit to AWS; designed and implemented microservices using Python, FastAPI, Node.js, and Django; developed frontend interfaces with React, Next.js, and Redux; optimized AI components with NumPy and Pandas; built RESTful APIs and GraphQL endpoints with authentication and RBAC; implemented CI/CD pipelines with Docker, Kubernetes, AWS Lambda, and Github Actions; integrated PostgreSQL and MongoDB with SQLAlchemy and Prisma; configured Kafka and AWS SNS/SQS for real-time and asynchronous processing; developed comprehensive testing strategies (Pytest, Jest, Playwright, Postman); authored detailed technical documentation and recommendations for future enhancements.

Software Engineer at Sigma Software Group

April 1, 2022 - October 10, 2025

Developed responsive single-page applications using Vue.js, JavaScript, HTML5, and CSS3 for client-facing platforms. Built reusable UI components and layouts for rapid MVP deployment, improving development speed by 35%. Set up domains, hosting, and performed basic SEO optimizations for multiple client websites. Worked with RESTful APIs and integrated dynamic data into one-page applications for real-time content updates. Ensured cross-browser compatibility and fast loading speeds through performance tuning and code optimization. Collaborated with designers to translate mockups into pixel-perfect, responsive web pages. Implemented version control using Git and CI/CD pipelines for reliable deployment. Utilized TailwindCSS and Material UI for clean, modern design aligned with professional standards. Performed QA testing across devices and browsers, fixing UI/UX issues and improving accessibility. Supported documentation for client handover and provided technical guidance for updates.

Software Engineer at Sigma Software Group

April 1, 2022 - October 9, 2025

Developed dynamic fintech and gaming interfaces using Vue.js, TypeScript, Vuex, and Vuetify for responsive, modular frontend applications. Integrated Web3.js for decentralized app connectivity and real-time blockchain data display. Collaborated with backend teams to design RESTful APIs, improving data throughput. Implemented component libraries and SSR rendering with Nuxt.js, improving load performance and SEO. Executed automated testing with Jest and Cypress, ensuring stable deployments. Enhanced accessibility and responsiveness with CSS Grid, Flexbox, and Material Design principles. Led frontend optimization efforts, reducing average page load time by 20% through lazy loading and caching.

Software Engineer at Software Mind Systems

July 1, 2019 - October 10, 2025

Assisted in the development of web applications using HTML, CSS, JavaScript, and jQuery. Participated in responsive website creation and basic UX design improvements. Collaborated with senior developers to integrate REST APIs into front-end applications. Implemented cross-browser compatible layouts and optimized page load speed by 20%. Contributed to minor SEO optimizations for client websites and maintained content structure. Worked in Agile/Scrum teams, participated in daily stand-ups and code reviews. Supported deployment processes and configuration of web hosting environments. Maintained documentation and assisted in the knowledge transfer to clients. Performed unit and integration testing for front-end components. Assisted in troubleshooting front-end issues and enhancing user interface.

Junior Software Engineer at Software Mind Systems

July 1, 2019 - October 9, 2025

Contributed to enterprise web platforms using Angular and JavaScript (ES6), supporting modular and maintainable architecture. Built responsive, accessible interfaces ensuring WCAG compliance and cross-browser compatibility. Integrated RESTful APIs for live dashboards and data analytics. Refactored legacy codebase to TypeScript-based Angular CLI projects, improving maintainability. Implemented Jasmine and Karma unit tests, achieving 85% coverage. Collaborated in Agile/Scrum workflows using Git, Jira, and Confluence. Optimized DOM rendering and caching strategies, improving performance by 20%. Partnered with designers to streamline UI/UX flows, reducing user friction by 15%.

Software Engineer at Software Mind Systems

July 1, 2019 - October 6, 2025

Assisted in developing web applications using Python, Django, Flask, and JavaScript frameworks, contributing to educational and AI-related projects. Supported backend API development and database integration with PostgreSQL and MongoDB. Collaborated on frontend interfaces using React and Vue.js with responsive design practices. Participated in testing activities with Pytest and Jest, ensuring platform stability and correctness. Implemented microservices components and assisted in deployment processes using Docker and AWS services. Maintained project documentation, facilitated team code reviews, and contributed to Agile/Scrum processes. Provided support for chatbot integration and automated assessment tools within educational platforms. Developed small-scale AI scripts using Python libraries such as NumPy and Pandas for analytics and data processing.

Software Engineer at Software Mind Systems

July 1, 2019 - October 6, 2025

Assisted in developing web applications using Python, Django, Flask, and JavaScript frameworks; contributed to educational and AI-related projects; backend API development and database integration with PostgreSQL and MongoDB; frontend collaboration with React and Vue.js; testing with Pytest and Jest; implemented microservices components and deployment support using Docker and AWS; maintained documentation and contributed to Agile/Scrum processes; supported chatbot integration and automated assessment tools; developed small-scale AI scripts with NumPy and Pandas for analytics.