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Rafael – Angular, JavaScript, Typescript, experts in Lemon.io

Rafael

From Poland (GMT+2)

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Senior Front-End Web Developer
Hire developer
12 years of commercial experience
Banking
Entertainment
Gambling
Healthcare
Retail
Mobile apps
Platforms
Gaming software
Lemon.io stats
1
projects done
96
hours worked
Open
to new offers

Rafael – Angular, JavaScript, Typescript

Rafael is a Senior Front-End Developer with over 10 years of production experience and especially deep expertise in JavaScript. A web enthusiast, he's focused on implementing web apps using the best practices, empowering his skills in performance and testing techniques.

Main technologies
Angular
6 years
JavaScript
10 years
Typescript
6 years
Additional skills
React
Node.js
MongoDB
ASP.NET
C#
HTML
REST API
Express.js
Git
Angular Material
SCSS
RxJS
PostgreSQL
Next.js
Redux
Tailwind CSS
CSS
HTML/CSS
Apollo GraphQL
Ready to start
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Potentially possible

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Experience Highlights

Senior Front-End Developer
Sep 2023 - Jun 20249 months
Project Overview

One of the top trading platforms for CSGO. The platform offers popular games, such as ROLL, UNBOXING, CASE OPENING, and many more.

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Responsibilities:
  • Implemented new features on battles, different battle modes, etc
  • Migrated Angular v16 to Angular v17
  • Implemented complete features both in front-end and back-end
  • Wrote unit tests (isolated, shallow, and integration)
  • Took part in the code review process, on this project tech discussions were frequent to keep the best practices and technologies up to date
  • Took part in performance tasks to keep up project with high optimization
Project Tech stack:
Angular
RxJS
Apollo GraphQL
Typescript
Node.js
CSS
ElasticSearch
Senior Front-End Developer
Jan 2022 - Jul 20231 year 5 months
Project Overview

This is a platform that connects fans with their idols through exclusive fan experiences and merchandise sales.

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Responsibilities:
  • Implemented features using AI, suggestion, and content creation
  • Created frontend architecture from scratch
  • Implemented complex UI, using Canvas to process images and apply filters like the Instagram ones
  • Implemented modern designs, focusing on mobile first
  • Was responsible for the UI, decision-making, and code review of team members.
Project Tech stack:
Angular
Typescript
RxJS
Angular Material
SCSS
Node.js
PostgreSQL
Firebase
Redux
Firestore
Next.js
Tailwind CSS
React
AI
Senior Front-End Developer
Jul 2019 - Oct 20212 years 3 months
Project Overview

One of the largest US investment companies, managing close to 3 trillion in assets. The goal of the project was to show analysts which providers are eligible for investments.

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Responsibilities:
  • Acted as a team leader for the FE, leading teams of 3-4 people
  • Mentored back-end developers with front-end technologies
  • Was responsible for unit/integration tests
  • Took part in the deployment and release processes
  • Implemented core functionality that was reused across applications
  • Switched between projects to review the quality of the code
Project Tech stack:
Angular
JavaScript
Typescript
Git
HTML
CSS
REST API
Node.js
Front-End Developer
Oct 2017 - Jul 20191 year 9 months
Project Overview

One of the largest banks in Europe, the goal of this project was to create one web app that allows analysts to see their data around the world in simple charts. This was the project with high-performance demand due to a high amount of data.

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Responsibilities:
  • Implemented unit and integration tests on the project
  • Configured CI and CD to existing projects
  • Conducted tech talks to help developers with frontend technologies
Project Tech stack:
Angular
Typescript
JavaScript
Node.js
MongoDB
Express.js
Front-End Developer
May 2015 - Sep 20172 years 3 months
Project Overview

This is one of the largest medical laboratories in Brazil.

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Responsibilities:
  • Implemented the project from scratch together with the team
  • Provided high code quality with 80%+ of unit tests on javascript
  • Was responsible for the implementation of the doctors' portal
  • Was responsible for the front-end development
Project Tech stack:
JavaScript
Typescript
HTML
CSS
REST API

Education

2014
Technician in Computer Science for Internet
Technological Information and Communication, Secondary Level
2018
Analysis and System Development
Technological Undergraduate Study

Languages

English
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