Mati Stiglitz, Developer in Miami, FL, United States
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Mati Stiglitz

Verified Expert  in Engineering

Front-end Developer

Miami, FL, United States

Toptal member since November 16, 2022

Bio

Mati is a front-end developer boasting more than five years of hands-on experience. His expertise lies in crafting remarkable user interfaces using React and TypeScript. Mati is known for his ability to produce clean, maintainable code and staying current with the latest libraries and industry best practices. What sets him apart is his remarkable interpersonal skills, a deep product understanding, and an unwavering commitment to elevating every project or feature he touches to excellence.

Portfolio

Cyber Security Startup
Node.js, Kubernetes, React.js, PostgreSQL, MongoDB, Leaflet, Maps, AWS DevOps
Betterleap, Inc.
React.js, Node.js, TypeScript, NestJS, UI Design, Apollo, Full-stack...
Remote Team
React.js, Chakra UI, React.js, TypeScript, CSS3, Server-side Rendering (SSR)...

Experience

Availability

Part-time

Preferred Environment

React, TypeScript, Express.js, Chakra UI, Algorithms, Web Development, Cypress, Headless Software

The most amazing...

...feature I've built is a video chat room with AI face-detection functions to verify the users' age, gender, and mood.

Work Experience

Full-stack Senior Developer

2023 - PRESENT
Cyber Security Startup
  • Developed a new back-end component in the system, which serves as a gateway.
  • Created a map UI page that shows dynamic data and allows zooming, grouping, and filtering control.
  • Scaled the system to work well with large amounts of data fast and with high-performance matrices.
Technologies: Node.js, Kubernetes, React.js, PostgreSQL, MongoDB, Leaflet, Maps, AWS DevOps

Full-stack React/Node Developer

2022 - 2023
Betterleap, Inc.
  • Developed API endpoints with Node.js, Nest, and TS to support new features.
  • Configured segment and mix panel tracking on user events.
  • Created and fixed UI components with React, TS, and custom React library.
Technologies: React.js, Node.js, TypeScript, NestJS, UI Design, Apollo, Full-stack, Digital Payments

Front-end Developer and Team Leader

2021 - 2022
Remote Team
  • Developed a web application to help HR teams analyze candidates.
  • Led and managed three remote employees in the product development process.
  • Wrote tests and created effective pipelines to optimize the merging process.
Technologies: React.js, Chakra UI, React.js, TypeScript, CSS3, Server-side Rendering (SSR), HTML5, MongoDB, MERN Stack, Material UI, UI Development, Node.js, Express.js, Figma, Adobe XD Design, Git, Redux, Facial Recognition, Remote Team Leadership, JavaScript, AWS Amplify, Firebase, Three.js, REST API, Front-end, D3.js, CSS, Next.js, APIs, Back-end Developers, Database, UX Development, AWS, Expo, Heroku, Webpack 4, Jira, Charts, CQRS, Architecture, Automated Testing, Design Systems, Builder.io, CI/CD Pipelines, Recharts, Serverless, Azure Design, Docker, Agile Development, JavaScript, PostgreSQL, Headless Software, Database Modeling, Mobile App Design, Mobile App Design, Video Streaming, Live Chat, Social Media Platforms, Newsfeeds, Technical Leadership, Web Project Management, System Security, GraphQL, DevOps, Database, UI Design, Apollo, Full-stack

Front-end Developer

2018 - 2021
Lightbyte
  • Built web applications using modern frameworks and languages.
  • Worked alongside the customers, designers, and the back-end team.
  • Delivered 10-15 projects a year with high-quality code and pixel-perfect UI.
Technologies: React.js, JavaScript, PHP, WordPress Development, CSS3, MySQL, HTML5, MongoDB, MERN Stack, SEO Tools, Leadership, Full-stack, UI Development, Node.js, Express.js, Figma, Adobe XD Design, Git, Redux, React.js, React Native, REST API, Front-end, CSS, Next.js, APIs, Back-end Developers, Database, UX Development, Expo, Bootstrap, Webpack 4, Jira, Android, iOS, Charts, Architecture, Design Systems, Storybook, CI/CD Pipelines, D3.js, Serverless, Azure Design, Agile Development, JavaScript, PostgreSQL, Headless Software, Database Modeling, Mobile App Design, Mobile App Design, Live Chat, Technical Leadership, Web Project Management, Communication Coaching, DevOps, UI Design, Full-stack

Project Manager

2016 - 2018
IDF Intelligence and Communication Division
  • Managed tech projects for the unit's internal and external usages.
  • Developed new tools to support the unit's ongoing processes.
  • Created new pipelines to improve testing and maintenance.
Technologies: System Security, Collaboration, Leadership, HTML5, CSS, UX Development, Agile Development, Technical Leadership, JavaScript, UI Design

Front-end Developer

2015 - 2016
AdExtent
  • Developed new features for the company's clients and users.
  • Learned how to write efficient code and build and structure a new project's codebase.
  • Mentored by senior team members and experts on career choices.
Technologies: JavaScript, HTML5, UI Development, Git, REST API, Front-end, CSS, UX Development, JavaScript, Headless Software, UI Design

Dynamic Input Mask

https://www.npmjs.com/package/dynamicmask
A React custom Hook that makes the input mask update during the user input. So, as the user starts typing the area code, the input gets the right formatting with the mask. It also works with country selection, enabling the user to manually select the country name and country code, along with the mask to be placed on the input.

Video Face Detection

https://www.npmjs.com/package/face_detection_hook
A React custom Hook library that adds face detection functionality to a web camera. The Hook returns in real time whether the user's face is inside the frame or not, allowing developers to detect when the user has left a video call without pressing the leave button.

Social Network Mobile App

CodyMe is a digital ID and personal info wallet mobile app built with React Native. The app saves the user's data and allows sharing, managing, and securing them for any use. The app generates a unique user ID, enabling faster data sharing.
2013 - 2016

High School Diploma in Computer Science

Hispin - Hagolan, Israel

Libraries/APIs

React.js, Node.js, React.js, REST API, D3.js, Three.js, AWS Amplify, Recharts, Leaflet

Tools

Git, Expo, Webpack 4, Jira, JavaScript, Figma, Adobe XD Design, Builder.io

Languages

TypeScript, HTML, CSS3, PHP, JavaScript, HTML5, CSS, GraphQL, Java

Frameworks

Express.js, Redux, React Native, Cypress, Next.js, Material UI, NestJS, Bootstrap

Paradigms

Automated Testing, Agile Development, Mobile App Design, Mobile App Design, UI Design, UX Development, CQRS, DevOps

Platforms

WordPress Development, Firebase, Android, Heroku, AWS, iOS, Azure Design, Docker, Kubernetes

Storage

MongoDB, MySQL, Database, PostgreSQL, Database Modeling

Other

Facial Recognition, Remote Team Leadership, Chakra UI, Algorithms, Communication Coaching, System Security, Web Development, Web Project Management, Collaboration, Front-end, UI Development, Full-stack, Leadership, SEO Tools, MERN Stack, Server-side Rendering (SSR), APIs, Back-end Developers, Charts, Design Systems, CI/CD Pipelines, Serverless, Headless Software, Video Streaming, Live Chat, Social Media Platforms, Newsfeeds, Technical Leadership, Apollo, Full-stack, UX Development, Architecture, Storybook, AWS DevOps, Digital Payments, System Security, Masking, Database, Maps

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