Frontend Engineer specialized in React, TypeScript & scalable web apps.
I build landing pages, admin dashboards, fix React bugs, and integrate APIs.

React
TypeScript
Next.js
Tailwind CSS
Node.js
Express
PostgreSQL
GraphQL
Redux
React Query
React
TypeScript
Next.js
Tailwind CSS
Node.js
Express
PostgreSQL
GraphQL
Redux
React Query
Services
Specialized services tailored to your project needs with a focus on quality and performance.
Professional Experience
My journey as a frontend engineer, building innovative solutions and driving digital transformation.
Frontend Engineer at IT People Innovation(Lisbon)
July 2023 — Present
Software Catalog Development:
- •Integral to the frontend development of our cutting-edge service catalog, I focus on creating intuitive user interfaces that empower users to seamlessly edit, view, and manage company services, including frontend and backend projects, repositories, and APIs.
- •Implementing microfrontends architecture to improve scalability and maintainability, integrating multiple apps to complement the catalog (e.g. AI features).
- •Leveraging React expertise, I collaborate closely with backend teams, ensuring seamless integration of frontend functionalities with backend processes.
- •While I primarily handle front-end development, my contributions facilitate the automation of repetitive tasks through streamlined processes. For instance, initiating a frontend project triggers an automatic sequence, orchestrated by backend systems, expediting project setup and deployment.
Framework Development:
- •Leading the frontend development efforts for our React framework, I contribute to establishing a robust foundation for standardized project configurations, encompassing authentication, communication protocols, form handling, and more.
- •By championing best practices in frontend development, I ensure our framework remains adaptable and scalable, supporting the evolving needs of our development teams.
- •Collaborating closely with cross-functional teams, I contribute to continuous enhancements and refinements to the framework, driving innovation and efficiency across our projects.
React
Microfrontends
Framework Development
UI/UX
Cross-functional Collaboration
Frontend Engineer at Devoteam(Lisbon)
May 2022 — July 2023
- •I rebooted the web application from scratch, led the redevelopment of a web application legacy component in React into Angular, and cooperated very closely with another front-end developer. As part of this role, I had to design and implement reusable components based on Figma designs that would guarantee consistency and a responsive user interface.
- •Focused on performance and responsiveness, with great emphasis placed on web performance optimization through responsive design, extensive research, and tests for a better user experience across all devices and browsers.
- •The WebSockets' real-time features suggest that this is an integrated real-time CCTV monitoring in WebSockets, which enables the Application to turn the variable message traffic signs on the highway on and off.
- •Reviewing of Code and Cross-Browser Compatibility: actively participated in the review of code to ensure high quality of code and provided cross-browser compatibility.
- •Stakeholder Demos and Collaboration: Regularly presented demos to leadership, featuring new features and improvements, and aligning the efforts of development with business goals.
- •It managed version control and debugging processes, hence making the development workflow smooth with timely project delivery.
React
Angular
WebSockets
Responsive Design
Code Review
Stakeholder Collaboration
Software Engineer at Freelancing
August 2019 — January 2022
- •Developed full-stack web apps, using MERN stack
- •PSD's and Figma files to code
- •Code review
- •Bug fixing
- •UX/UI
- •Web performance and security
- •Testing and debugging
- •Implemented multiple architectures
- •Create and manage databases
- •CI/CD
MERN Stack
Full-stack Development
UX/UI
Web Performance
CI/CD
Database Management
Projects
Showcasing my best work and technical expertise.

Omenia – RPG Multiplayer Game
Built with React, Node.js, MongoDB. It's a multiplayer RPG game where you can create your own character and play with your friends.
#React
#JavaScript
#Node
#Express
#MongoDB
#WebSocket
About Me
I'm a software developer with 5+ years of experience building production-grade apps using React, TypeScript, and Node.js. I've worked in banking, fintech, traffic management, and startups, and I focus on clean code, performance, and clear communication.
Skills
React
TypeScript
Next.js
Tailwind
Redux
Zustand
React Router
React Hook Form
React Query
Framer Motion
Node.js
Express
MongoDB
PostgreSQL
Swagger
Jest
React Testing Library
Vitest
Storybook
Docker
AWS
CI/CD
Git
Linux
Nx
Webpack
Vite
RsPack
OpenAI
Stripe
Paypal
Let's Build Something Awesome Together
Reach out if you have a project in mind or want to collaborate.
Email Me Directly
daniel.marquesedigital@gmail.comI typically respond within 24 hours during weekdays.