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Emil – React Native, React, Typescript, experts in Lemon.io

Emil

From Poland (GMT+2)

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Mobile DeveloperSenior
Front-end Web DeveloperSenior
Hire developer
9 years of commercial experience
Blockchain
Energy
Food and beverages
Recruiting
Retail
CRM
HRMS
Mobile apps
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Emil – React Native, React, Typescript

Meet Emil - a professional with a background in financial advising, blending expertise in Frontend and Mobile development with a strong affinity for React Native. He is particularly passionate about finance and health-related projects. Emil's experience includes mentorship practice, having successfully taught and guided junior developers in the past!

Main technologies
React Native
3.5 years
React
5.5 years
Typescript
4 years
Additional skills
Node.js
AWS
Next.js
Ramda
Material UI
JavaScript
GraphQL
Jest
Context API
Apollo GraphQL
Express.js
Figma
Ready to start
Anytime
Direct hire
Potentially possible

Experience Highlights

Senior Front-End Developer
Apr 2023 - Nov 20237 months
Project Overview

A project enabling users to oversee and document work progress throughout production. Additionally, supervisors can utilize the system to locate specific samples and review current and historical statuses for comprehensive monitoring.

Skeleton
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Responsibilities:
  • created the front-end architecture;
  • implemented advanced searching and filtering features for data tables;
  • analyzed and improved data flow in API communication;
  • wrote unit and integration tests;
  • debugged and resolved the application's issues.
Project Tech stack:
React
Material UI
Context API
Typescript
Ramda
Jest
JavaScript
GraphQL
Full-Stack Mobile Developer
Feb 2022 - Apr 20231 year 2 months
Project Overview

A mobile application allowing users to control energy consumption and bills. The solution provides a detailed analysis of energy consumption and involves notifications about changes in energy prices and the monthly bill estimation.

Skeleton
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Responsibilities:
  • redesigned charts for better user interactions;
  • implemented new features based on business needs;
  • ensured that the application runs as smoothly as possible;
  • wrote e2e tests with the Detox framework;
  • optimized GraphQL queries and caching to remove redundant requests.
Project Tech stack:
React
React Native
Apollo GraphQL
e2e testing
Node.js
Express.js
Senior Mobile Developer
Oct 2021 - Feb 20224 months
Project Overview

The project empowered restaurants to create customized applications affordably, with clients shaping content and themes through the CRM. Individualized payment solutions were consistently tailored for seamless integration.

Skeleton
Skeleton
Skeleton
Responsibilities:
  • optimized a ready-made application;
  • debugged and resolved the application's issues;
  • redesigned and implemented the data flow in the application;
Project Tech stack:
React Native
Typescript
React
Expo
Front-End Developer
Feb 2019 - Jun 20201 year 4 months
Project Overview

A collaborative hiring software offering an ATS with advanced Candidate Scoring capabilities. With features like a LinkedIn Extension, Drag & Drop Pipeline, and Task Automation, it provides seamless collaboration in the recruitment process. The incorporation of AI enhances the capabilities of the Recruitment ATS & CRM, making it an all-in-one platform for managing the hiring process.

Skeleton
Skeleton
Skeleton
Responsibilities:
  • implemented the 'Send Later' feature in a built-in mail client, a redesigned payment process, and various small features based on UX&UI designs;
  • took part in designing the business logic of the application;
  • debugged and resolved the issues;
  • wrote unit, integration, and e2e tests;
Project Tech stack:
Angular
Typescript
RxJS
Figma
Full-stack Mobile Developer
May 2018 - Jan 20198 months
Project Overview

It is a shopping destination in the heart of Poznań, seamlessly blending commerce and art. The website and mobile application serve as intuitive tools, guiding users to navigate the diverse array of stores within the mall.

Skeleton
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Skeleton
Responsibilities:
  • designed and implemented front-end and back-end architecture;
  • build front-end from scratch, worked on API and a mobile application;
  • enabled the communication between API and third-party applications;
  • debugged and resolved the ongoing issues.
Project Tech stack:
React Native
JavaScript
SASS
PHP
WordPress
Front-End Developer
Nov 2017 - Apr 20184 months
Project Overview

The company is laying the groundwork for a more inclusive economy, driven by the ambition to empower individuals through the capabilities of blockchain technology.

Skeleton
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Responsibilities:
  • worked in a large Front-End team for which rapid development was a priority;
  • implemented TradingView charts with a fully customized theme;
  • delegated to contact the technical side with the client;
  • led 5 front-end developers (in a short period);
  • debugged and solved application problems.
Project Tech stack:
React
RxJS
Redux
Redux Saga
WebSocket

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