Minica Ionut Cristian, Developer in Bucharest, Romania
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Minica Ionut Cristian

Verified Expert  in Engineering

Full-stack Web Developer

Location
Bucharest, Romania
Toptal Member Since
June 8, 2020

Cristian is a full-stack web developer with several years of experience building beautiful, performant mobile and web applications that meet or exceed industry standards. His enthusiasm for tech has led him to create several side projects in various areas, including machine learning. Cristian is also innately curious and willing to ask hard questions, quickly making him an asset to any project.

Portfolio

Toptal Client
Node.js, Back-end, JavaScript, TypeScript, HTML, CSS, Full-stack, Front-end...
Toptal Client
JavaScript, Chrome Extensions, React, Front-end Architecture, ECMAScript (ES6)...
Wellnessentially
Agile, Node.js, Express.js, MongoDB, React, Azure, Bootstrap, Bootstrap 4, SaaS...

Experience

Availability

Part-time

Preferred Environment

Linux, MacOS, Windows, Google Docs, Slack, Postman, Terminal, Visual Studio Code (VS Code), MongoDB Atlas, Generative Pre-trained Transformers (GPT)

The most amazing...

...project I've worked on was BytesRoute, which I developed from an idea and an MVP to a robust, full-scale application.

Work Experience

Senior Full-stack Developer

2023 - PRESENT
Toptal Client
  • Implemented sleek UI improvements based on user feedback.
  • Implemented the generative pre-trained transformer 3 (GPT-3) system for user feedback and suggestions.
  • Managed back-end servers, database deployment, and DevOps.
Technologies: Node.js, Back-end, JavaScript, TypeScript, HTML, CSS, Full-stack, Front-end, Test-driven Development (TDD), React, Angular, Vue, Git, Generative Pre-trained Transformers (GPT), MEAN Stack, Full-stack Development

Web Automation and JavaScript Expert

2022 - 2023
Toptal Client
  • Worked in a fast-paced startup-like environment with constant communication to improve the user experience.
  • Built a declarative engine for creating recipes used in crawling and automation on the top 1,000 websites.
  • Participated in design decisions, wrote documentation, and tracked bugs using Jira.
Technologies: JavaScript, Chrome Extensions, React, Front-end Architecture, ECMAScript (ES6), Puppeteer, Selenium, Screen Scraping, Scraping, HTML5, Web Development, Software Design, Mobile First, Git

Senior Full-stack Developer

2021 - 2023
Wellnessentially
  • Created a comprehensive React application with a responsive, clean UI.
  • Used Node.js, Express.js, and MongoDB to develop a REST API back end that is performant and easy to extend.
  • Headed a team and managed operations in a fast-paced setting that required quick iterations driven by valuable user feedback.
  • Used AI models in production for validation and inspiration, profanity detection, and pose detection.
Technologies: Agile, Node.js, Express.js, MongoDB, React, Azure, Bootstrap, Bootstrap 4, SaaS, Software Design, Mobile First, Generative Pre-trained Transformers (GPT), OpenAI GPT-3 API, OpenAI GPT-4 API, Git, Hugging Face, Full-stack Development

Senior Full-stack Developer

2021 - 2022
Brox.ai
  • Developed a system to extract qualitative information from text input and respond to questions or summarize the information.
  • Created a system to retrieve and transcribe audio and video surveys.
  • Built an admin system to create and manage audio or video surveys.
  • Developed a React web application that handles user authentication, profile panels, and survey submission.
Technologies: Agile, Amazon EC2, OpenAI GPT-3 API, Git, Generative Pre-trained Transformers (GPT), Hugging Face, Full-stack Development

Chrome/Browser Extension Developer

2021 - 2021
Toptal Client
  • Assessed client necessities and helped determine a development plan based on technical and budget constraints.
  • Implemented the project based on the plan we put together and the client's feedback.
  • Delivered comprehensive reports and performance or usability suggestions.
Technologies: Chrome Extensions, JavaScript, Ruby on Rails (RoR), Browser Plugins, Safari Extensions, Firefox Extensions, HTML5, Architecture, Software Architecture, Agile, Web Development, Front-end, MERN Stack, Software Design, Git

Freelance Senior Chrome Extension Developer

2021 - 2021
US Services Company
  • Created the UI/UX for an extension popup and in-page presentation.
  • Integrated for a client a custom search engine in a Chrome extension.
  • Set up a packaging system for deployment in the Chrome Web Store.
Technologies: Chrome Extensions, Web Extensions, CSS, JavaScript, REST, WordPress, PostgreSQL, ECMAScript (ES6), Front-end Architecture, OpenAI GPT-3 API, ChatGPT, Docker, APIs, API Gateways, MySQL, API Integration, HTML5, REST APIs, Software Architecture, SQL, DevOps, React, Node.js, Twilio API, Twilio, Back-end, Web Development, Front-end, Back-end Architecture, MERN Stack, SaaS, Software Design, Amazon EC2, Git

Freelance Senior Full-stack Developer

2020 - 2021
Global Fertilizer Company
  • Developed front-end features with React and GraphQL for a SaaS app that helps farmers manage, monitor via satellites, and make better decisions about their crops.
  • Worked on GraphQL and Nest.js microservices backed by a PostgreSQL database.
  • Handled billing, subscription, and payments via Zuora.
Technologies: Yarn, Responsive UI, Responsive Design, Slack, Visual Studio Code (VS Code), RESTful Microservices, Authentication, JSON, HTML, API Gateways, Jest, TypeScript, Git, NPM, Express.js, Node.js, JavaScript, Full-stack, Microservices, Zuora, Design Systems, UX Design, NestJS, GraphQL, React, REST, ECMAScript (ES6), Front-end Architecture, APIs, HTML5, REST APIs, Back-end, Web Development, Front-end, Next.js, Back-end Development, Back-end Architecture, MERN Stack, Software Design, Mobile First, Full-stack Development

Full-stack Developer (Node.js, Vue.js, MongoDB)

2019 - 2021
Padopto
  • Set up servers in Node.js and MongoDB on DigitalOcean.
  • Created a RESTful API in Node.js with proper JWT authentication mechanism.
  • Created a Vue.js single-page application with Bootstrap.
Technologies: Visual Studio Code (VS Code), JSON, HTML, Responsive UI, Responsive Design, Responsive Layout, Git, Progressive Web Applications (PWA), PWA, Vue, Full-stack, CSS, Mongoose, Ubuntu, Vue 2, NPM, Express.js, JavaScript, Node.js, MongoDB, REST, ECMAScript (ES6), Front-end Architecture, Firebase, APIs, API Integration, HTML5, REST APIs, Architecture, Software Architecture, DevOps, Twilio API, Twilio, Back-end, Web Development, Front-end, Back-end Development, Back-end Architecture, Bootstrap 4, SaaS, Software Design, Mobile First, Full-stack Development

Technical Lead (AWS, MongoDB, Node.js, Vue.js)

2015 - 2021
Caphyon
  • Developed an onboarding service from scratch called Bytes Route. It has two parts: a single-page web application and a Chrome extension.
  • Led a project that involved the UI revamp of Advancedinstaller.com(based on XML and XSLT).
  • Contributed, oversaw launch processes, and managed production services for multiple user-facing and admin web applications, including Installeranalytics.com.
  • Oversaw the creation, training, management, and mentoring of a team of web developers.
  • Provided technical know-how about web development to interested parties inside the company.
  • Setup a processing pipeline with three MongoDB clusters and one RabbitMQ cluster that can handle billions of data points.
Technologies: Microservices, Slack, Visual Studio Code (VS Code), JSON, HTML, Responsive UI, Responsive Design, Responsive Layout, Amazon Web Services (AWS), Git, Progressive Web Applications (PWA), PWA, Web Scraping, Data Scraping, React, Data Processing, RabbitMQ, Chai, Jest, Mocha, CSS, Mongoose, RESTful Microservices, PHP, Ubuntu, Vue 2, NPM, Express.js, JavaScript, TypeScript, API Gateways, Full-stack, AngularJS, Email Authentication, Authentication, MongoDB, Chrome Extensions, XSLT, Ant Design, Vue, Bootstrap, Node.js, REST, TensorFlow, ECMAScript (ES6), Puppeteer, Front-end Architecture, APIs, MySQL, API Integration, HTML5, REST APIs, Architecture, Software Architecture, Unit Testing, Agile, DevOps, CI/CD Pipelines, Twilio API, Twilio, Back-end, Web Development, Front-end, Back-end Development, Back-end Architecture, MERN Stack, MEAN Stack, Amazon S3 (AWS S3), Bootstrap 4, MVC Frameworks, XPath, SaaS, Software Design, Search Engine Optimization (SEO), Mobile First, JavaScript Testing, Jira, Amazon EC2, Amazon RDS, Full-stack Development

Freelance Senior Chrome Extension Developer

2020 - 2020
US Global Analytics Company
  • Developed a complex Chrome extension that helped people create a profile, share data from various sources like Netflix, Amazon, and Spotify, and get paid for it.
  • Built scrapers for multiple data sources, including Spotify, Amazon, and Netflix history.
  • Constructed a beautiful interface using React and Bulma.
  • Created and managed AWS servers with self-hosted MongoDB and Node.js/Express.js.
Technologies: Visual Studio Code (VS Code), JSON, HTML, Amazon Web Services (AWS), Git, Web Scraping, Data Scraping, CSS, Mongoose, Ubuntu, NPM, Express.js, JavaScript, Full-stack, Email Authentication, Authentication, SCSS, Bulma, Node.js, MongoDB, React, Chrome Extensions, REST, ECMAScript (ES6), Front-end Architecture, API Gateways, API Integration, HTML5, REST APIs, Architecture, Software Architecture, Agile, DevOps, Back-end, Web Development, Front-end, MERN Stack, Bootstrap 4, Software Design

Game Engine Developer

2013 - 2014
Ubisoft
  • Ported a 3D game engine written in C++ for the modern Windows platform.
  • Created a packaging and signing server application in Python-based Django to simplify the building and testing of the game.
  • Oversaw the launch process in the Windows 8 and Windows Phone 8 application stores.
Technologies: Visual Studio Code (VS Code), JSON, HTML, Git, Full-stack, CSS, Django, Python, C++, Windows API, MySQL, Software Architecture, SQL, Agile, Back-end, Web Development, Back-end Development, MVC Frameworks, Jira

Bytes Route

https://bytesroute.com/
Bytes Route is a service that improves user onboarding. I was in charge of the technical part as well as building, training, and managing the team. The value proposition is to create user onboarding tours without writing any code.

Advanced Installer Website

http://advancedinstaller.com
The presentation and documentation website for Advanced Installer. It has millions of users, and I was in charge of the UI revampment and modernization of the old website. I had strict requirements to maintain the old codebase, performance, and SEO. I also had to make the website responsive and apply new layouts and styles. We ended up using a new build system.

Installer Analytics

http://installeranalytics.com
A SaaS analytics service for Windows installers. I worked on new report generation, analytics, presentation, and UI improvements for the front end along with DevOps, database administration, and RESTful microservices on the back-end side.

Padopto

A mobile app for checklists. It allows the user to generate reusable checklist templates, upload or download checklist templates from the gallery, view analytics, and embed a checklist widget in a web page.

Wellnessentially

http://wellnessentially.com
A MERN Stack mobile and web application built for companies to help to lower stress and increase productivity and overall well-being of their employees. I developed the front end with React and Bootstrap and the back end using Node.js, Express.js, and Mongo and hosted it on Azure.
2014 - 2016

Master's Degree in Software Engineering

University of Craiova—Faculty of Automation, Computers and Electronics - Craiova, Romania

2010 - 2014

Bachelor's Degree in Automation and Applied Information Technology

University of Craiova—Faculty of Automation, Computers and Electronics - Craiova, Romania

JANUARY 2021 - PRESENT

PyTorch Essential Training: Deep Learning

LinkedIn

JUNE 2020 - PRESENT

Building RESTful APIs with Node.js and Express.js

LinkedIn

JUNE 2020 - PRESENT

Programming Foundations: Web Security

LinkedIn

FEBRUARY 2020 - PRESENT

UiPath RPA Developer

Udemy

MARCH 2018 - PRESENT

Machine Learning

Stanford Online University

Libraries/APIs

Node.js, Vue, React, Vue 2, REST APIs, jQuery, Chai, NumPy, Scikit-learn, Pandas, TensorFlow, Puppeteer, Windows API, Keras, PyTorch, Twilio API

Tools

NPM, Git, Mongoose, Mocha, RabbitMQ, ChatGPT, JavaScript Testing, Terminal, Postman, Slack, Google Docs, Robo 3T (Robomongo), Figma, Jira, MongoDB Atlas

Frameworks

Bootstrap, Express.js, AngularJS, Jest, NestJS, Next.js, Laravel, Angular, Django, Ant Design, Bulma, Yarn, Ruby on Rails (RoR), Selenium

Languages

JavaScript, HTML, CSS, ECMAScript (ES6), HTML5, TypeScript, GraphQL, SQL, Sass, XPath, Python, C++, PHP, C#, Java, Swift, XSLT, SCSS

Paradigms

Responsive Layout, REST, Back-end Architecture, Test-driven Development (TDD), Unit Testing, Agile, DevOps, MEAN Stack, Search Engine Optimization (SEO), UX Design, Microservices, RESTful Development

Storage

JSON, MongoDB, Amazon S3 (AWS S3), PostgreSQL, MySQL, Azure Blobs

Platforms

Amazon Web Services (AWS), Amazon EC2, Android, iOS, Firefox, Windows, MacOS, Linux, Unix, Ubuntu, WordPress, Visual Studio Code (VS Code), Firebase, Docker, Twilio, Azure

Other

Chrome Extensions, APIs, Full-stack, API Gateways, Data Scraping, Data Processing, Responsive Design, Responsive UI, Front-end Architecture, API Integration, Architecture, Software Architecture, Back-end, Web Development, Front-end, Back-end Development, MERN Stack, Bootstrap 4, MVC Frameworks, SaaS, Software Design, Dashboards, Reports, Mobile First, Software Development, Full-stack Development, RESTful Microservices, Robotic Process Automation (RPA), UiPath, Authentication, Email Authentication, PWA, Progressive Web Applications (PWA), Web Scraping, Screen Scraping, Scraping, OpenAI GPT-3 API, CI/CD Pipelines, Data Visualization, Generative Pre-trained Transformer 4 (GPT-4), OpenAI GPT-4 API, Payment APIs, Mobile Apps, Machine Learning, Design Systems, Zuora, Web Extensions, Web Security, Web App Security, Security, RESTful Services, Chatbots, Browser Plugins, Safari Extensions, Firefox Extensions, Artificial Intelligence (AI), Leadership, Push Notifications, WebSockets, Amazon RDS, Hugging Face, Generative Pre-trained Transformers (GPT)

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