Mati is available for hire

Mati Stiglitz

Verified Expert in Engineering

Front-end Developer

Location

Miami, FL, United States

Toptal Member Since

November 16, 2022

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.

Web Development Front-end User Interface (UI)MERN Stack Full-stack Development Full-stack Back-end Serverless Apollo JavaScript CSS UI Design PHP UX Design React

Portfolio

Cyber Security Startup

Node.js, Kubernetes, React, PostgreSQL, MongoDB, Leaflet, Maps, AWS DevOps

Betterleap, Inc.

React, Node.js, TypeScript, NestJS, UI Design, Apollo, Full-stack Development...

Remote Team

React, Chakra UI, React Router, TypeScript, CSS3, Server-side Rendering (SSR)...

Experience

JavaScript - 7 years CSS3 - 7 years Web Development - 6 years React - 5 years TypeScript - 5 years Git - 5 years Figma - 3 years Express.js - 3 years

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, 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, Node.js, TypeScript, NestJS, UI Design, Apollo, Full-stack Development, 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, Chakra UI, React Router, TypeScript, CSS3, Server-side Rendering (SSR), HTML5, MongoDB, MERN Stack, Material UI, User Interface (UI), Node.js, Express.js, Figma, Adobe Experience Design (XD), Git, Redux, Facial Recognition, Remote Team Leadership, JavaScript, AWS Amplify, Firebase, Three.js, REST APIs, Front-end, D3.js, CSS, Next.js, APIs, Back-end, Databases, User Experience (UX), Amazon Web Services (AWS), Expo, Heroku, Webpack 4, Jira, Charts, CQRS, Architecture, Automated Testing, Design Systems, Builder.io, CI/CD Pipelines, Recharts, Serverless, Azure, Docker, Behavior-driven Development (BDD), JavaScript Testing, PostgreSQL, Headless Software, Database Modeling, Mobile App Design, Mobile Development, Video Streaming, Live Chat, Social Media Platforms, Newsfeeds, Technical Leadership, Web Project Management, Web Security, GraphQL, DevOps, GraphDB, UI Design, Apollo, Full-stack Development

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, JavaScript, PHP, WordPress, CSS3, MySQL, HTML5, MongoDB, MERN Stack, SEO Tools, Leadership, Full-stack, User Interface (UI), Node.js, Express.js, Figma, Adobe Experience Design (XD), Git, Redux, React Router, React Native, REST APIs, Front-end, CSS, Next.js, APIs, Back-end, Databases, User Experience (UX), Expo, Bootstrap, Webpack 4, Jira, Android, iOS, Charts, Architecture, Design Systems, Storybook, CI/CD Pipelines, D3.js, Serverless, Azure, Behavior-driven Development (BDD), JavaScript Testing, PostgreSQL, Headless Software, Database Modeling, Mobile App Design, Mobile Development, Live Chat, Technical Leadership, Web Project Management, Communication, DevOps, UI Design, Full-stack Development

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: IoT Security, Collaboration, Leadership, HTML5, CSS, User Experience (UX), Behavior-driven Development (BDD), 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, User Interface (UI), Git, REST APIs, Front-end, CSS, User Experience (UX), JavaScript Testing, Headless Software, UI Design

Experience

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.

Skills

Languages

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

Frameworks

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

Libraries/APIs

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

Tools

Git, Expo, Webpack 4, Jira, JavaScript Testing, Figma, Adobe Experience Design (XD)

Paradigms

Automated Testing, Behavior-driven Development (BDD), Mobile App Design, Mobile Development, UI Design, UX Design, CQRS, DevOps

Platforms

WordPress, Firebase, Android, Heroku, Amazon Web Services (AWS), iOS, Azure, Docker, Kubernetes

Storage

MongoDB, MySQL, Databases, PostgreSQL, Database Modeling

Other

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

Education

2013 - 2016

High School Diploma in Computer Science

Hispin - Hagolan, Israel

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