Irinel Pascu, Developer in Bucharest, Romania
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Irinel Pascu

Software Developer

Bucharest, Romania

Toptal member since March 9, 2018

Expertise
JavaScriptAgile DevelopmentREST APIHTML5CSSTypeScriptAngularGitJavaSeleniumMySQLPostgreSQLMongoDBExpress.js
Bio

Irinel is an experienced and versatile software engineer who's worked in multiple countries, so he understands the importance of respecting cultural differences and would be a valuable asset to any team. He possesses full-stack development experience with JavaScript, TypeScript, Java under Angular, Spring, and J2EE. The type of project that he works on doesn’t really matter as long as there is something he can learn from it.

Portfolio

Toptal Client
MongoDB, HTML5, Angular, Agile Software Development, Git, TypeScript, NgRx...
Microsoft
React, Java, Redux
Lindar
React, Redux, React Native, Axios

Experience

  • JavaScript - 10 years
  • Git - 4 years
  • RxJS - 4 years
  • Angular - 4 years
  • TypeScript - 4 years
  • NgRx - 2 years
  • React - 1 year
  • Node.js - 1 year

Preferred Environment

NestJS, NgRx, RxJS, Express.js, MongoDB, Node.js, Angular Material, TypeScript, Angular

The most amazing...

...thing I've coded was DNA region viewer with the capability to scroll through the human DNA by zooming in and out on an area of DNA.

Work Experience

Staff Software Engineer

2018 - PRESENT
Toptal Client
  • Led front-end architecture and delivery for Franklin, Genoox’s genomic interpretation platform, helping scale a mission-critical product later sold for $80 million through fundraising efforts.
  • Built a high-performance DNA region viewer that renders and supports interaction with massive genomic datasets in real time, strengthening product differentiation and supporting key.
  • Introduced practical AI-assisted engineering workflows using Claude, Gemini, and ChatGPT to accelerate delivery, improve developer productivity, and reduce technical debt.
  • Owned delivery of complex Angular SPA capabilities for expert healthcare workflows, balancing performance, maintainability, and usability in a domain where correctness and clarity are essential.
  • Designed and implemented a visual filtration engine for complex DNA-variant exploration, translating recursive domain logic into an efficient user workflow that improved product usability and helped secure a major client.
Technologies: MongoDB, HTML5, Angular, Agile Software Development, Git, TypeScript, NgRx, Angular Material, Node.js, RxJS, Redux, React, Claude

Software Engineer 2

2021 - 2023
Microsoft
  • Architected and led React development for Viva Engage Campaigns on the Yammer platform, shipping a large-scale enterprise feature used to improve internal communications.
  • Drove front-end design and implementation decisions for a high-visibility product area, aligning feature delivery with the constraints of an established platform and enterprise-grade user expectations.
  • Operated effectively in a cross-functional environment spanning product, design, and engineering to translate business requirements into scalable front-end solutions.
Technologies: React, Java, Redux

Senior React Developer

2021 - 2021
Lindar
  • Built and launched new React features for MrQ.com, a leading gambling and gaming platform.
  • Reworked the whole UI and UX design to implement skinning and theming, leading to an instant increase in user base.
  • Improved the know your customer tooling to better filter out blacklisted users.
Technologies: React, Redux, React Native, Axios

Systems Engineer

2017 - 2018
Systematic
  • Developed features for an online education platform and a library platform.
  • Clarified and planned new features with the leadership team.
  • Owned the codebase to fix defects and implement new features.
Technologies: MySQL, Java, HTML5, Angular, Agile Software Development, Git, TypeScript, IntelliJ IDEA, TeamCity, Apache Maven, Docker, PostgreSQL, Jakarta EE (Java EE or J2EE), Protractor, Node.js, Angular Material, RxJS

Full-stack Software Developer

2016 - 2017
Next Level Integration
  • Developed new features for online energy management platforms.
  • Ported an existing Flex application to AngularJS.
Technologies: MySQL, Angular, HTML5, Jenkins, Apache Maven, Docker, PostgreSQL, Hibernate, Spring MVC, Flex

Client Developer

2015 - 2016
Goodgame Studios
  • Developed the Facebook client for a casual game.
  • Implemented performance optimization solutions.
  • Determined the right technologies to use alongside the lead developers and product owners.
Technologies: Agile Software Development, Git, Subversion (SVN), Jenkins, Apache Maven, JavaScript, ActionScript 3

Lead Games Developer

2014 - 2015
Playline Studios, Inc.
  • Developed a cross-platform casino game on Facebook, Android, and iOS.
  • Built an automatic build system to facilitate the releasing of new game versions.
  • Came up with an economy that maximizes the ARPDAU and keeps the user's balance under control.
  • Optimized the performance to achieve 60 frames per second (FPS) on low-end devices.
  • Designed a modular application that could easily support adding new games.
Technologies: Subversion (SVN), Adobe Photoshop, Apache Ant, JavaScript, ActionScript 3

Lead Games Developer

2010 - 2014
E-dea Works
  • Led and tutored a team of four game developers.
  • Built a game engine, a popup system, payments, and tracking libraries.
  • Released multiple cross-platform apps (web, Android, iOS) with and without back-end support.
  • Developed projects for the following clients: Dacia, US Ad Council, British American Tobacco, Oriflame, VRAK.TV Canada, Cineflix Studios, BBS America, CBS, British American Tobacco, and Kidsopia.
Technologies: Agile Software Development, Subversion (SVN), Apache Ant, MySQL, Zend Framework, PHP, HTML5, JavaScript, Java, ActionScript 3

Experience

Franklin

https://franklin.genoox.com/
An Angular web application specializes in translating complex genetic data into clear, timely, and actionable clinical answers for medics and geneticists worldwide. I was the front-end architect and developer and worked closely with developers, designers, and product owners to plan and develop a flexible, performant, scalable, resilient platform for our users. The most impressive thing that I developed were a human DNA region viewer and a resilient AWS S3 large file upload system.

MrQ.com

http://mrq.com
An all in one, cross-platform, online casino with slots, live casino games, jackpots and bingo games, focused on transparency, built by players, for players. Real cash wins, zero nonsense, and total control.

MoMo Learning Platform

MoMo is the newest learning software platform on the market and is a solution tailored to both teachers and students; it is also designed to provide school management and administration with significant insights and overviews.

Another link to the platform: systematic.com/library-learning/loesninger/by-name/momo/

Cicero Surf

A portal where end-users of the Cicero suite (library system) can reserve or book materials from public libraries across Denmark and also see the status of their loans or reservations and overdue materials.

Cicero Web

Cicero Web provides to students, teachers, and the parents with online access to knowledge, teaching aids, and materials available from the school library. It is a visual interface that appeals to children’s intuitive interaction and inspires searches for materials associated with experiences and learning.

myBusiness | smartEnergy

A portal that offers the most comprehensive solution for meter operators, gateway administrators, and external market participants to handle all regulated processes associated with new metering systems. It is specially designed for use in municipal utilities and cooperations.

Education

2018 - 2018

Certificate in Angular Foundation (Software Engineering)

Lund&Bendsen A/S - Bucharest, Romania

2007 - 2011

Bachelor's Degree in Electrical Engineering

Politehnica University of Bucharest - Bucharest, Romania

Skills

Libraries/APIs

NgRx, REST APIs, RxJS, Facebook SDK, Facebook Login, Facebook API, React, Node.js

Tools

Angular CLI, Git, Subversion (SVN), IntelliJ IDEA, Karma, Apache Maven, NPM, Apache Ant, Adobe Photoshop, Froala, Zeplin, Jira, Jenkins, TeamCity, Bamboo, Claude

Languages

HTML5, CSS, CSS3, TypeScript, JavaScript, Java, ActionScript 3, PHP

Frameworks

Angular Material, Angular, Protractor, Jasmine, Selenium, Express.js, Zend Framework, Flex, Hibernate, Redux, NestJS, Spring Boot, Spring MVC, React Native, Tailwind CSS

Paradigms

Agile Software Development, REST, Kanban

Storage

MySQL, PostgreSQL, MongoDB, Amazon S3 (AWS S3)

Platforms

Jakarta EE (Java EE or J2EE), Java EE (Jakarta EE), Docker

Other

WebSockets, Axios

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