Summary
Overview
Work History
Education
Skills
Languages
Additional Information
Timeline
Generic

Adam Sajko

Poland

Summary

A Senior Full Stack Developer with 9 years of experience in React, React Native, and Node technologies, prioritizing practicality and industry standards. Furthermore, expertise includes the ability to balance perfectionism with rapid prototyping and flexibility

Overview

9
9
years of professional experience

Work History

Project 1: Tech Lead / Full Stack Developer

STX Next
04.2023 - 10.2023

Developed an AI-powered sales intelligence and automation platform for real estate professionals. Integrated various tools for enhanced prospect engagement and conversion.

Industry: Real Estate / USA

Project 2: React Native Developer

STX Next
11.2022 - 03.2023

Worked on a software solution for airlines, providing real-time data to pilots on turbulence, weather, flight routes, and airspace dynamics. Built using React, React Native, and MapBox, enabling optimal flight path decisions.

Industry: Aerospace / USA

Project 3: React & React Native Developer

STX Next
04.2022 - 10.2022

Contributed to a platform uniting healthcare providers and their workforce. Developed for both web and mobile using React and React Native, supporting thousands of clinicians and healthcare organizations.

Industry: Healthcare / U.K.

Project 4: Tech Lead / React Native Developer

STX Next
07.2021 - 04.2022

Created a mobile application for a UK-based working agency supporting the gig economy. Utilized popular web and mobile development technologies.

Industry: Recruitment / U.K.

Project 5: React Native Developer

STX Next
01.2020 - 06.2021

Worked on a fintech platform offering retail investors access to the corporate bond market. Developed mobile solutions for fractional ownership and informed investment decisions.

Industry: Retail Investment Solutions / U.K.

Project 6: Full Stack Developer

STX Next
08.2019 - 12.2019

Contributed to a company specializing in providing insurance solutions for the gig economy and mobility sectors. Utilized various technologies and integrated with data providers.

Industry: Insurtech / U.K.

Project 7: React Native Developer

STX Next
07.2018 - 07.2019

Developed a mobile application for managing and controlling smart home devices, integrating it with various IoT systems, Siri and Apple HomeKit.

Industry: IoT / Poland-Italy cooperation

Project 8: Full Stack Developer

STX Next
01.2018 - 06.2018

Built a real-time currency exchange service that allows users to exchange both fiat and cryptocurrencies using real-time exchange rates.

Industry: Currency Exchange / Austria

Project 9: Full Stack Developer

Wakacje.pl
01.2015 - 12.2017

Contributed to a popular online travel agency, offering various travel-related services. Developed features for flight booking, accommodations, and travel services.

Industry: Travel / Poland

Education

Bachelor of Art in Information Technology -

University of Gdańsk
Gdańsk
2019

Major in Information Technology -

Secondary Technical School of Mechanical Engineering
Elbląg
2014

Skills

React Development:

  • JavaScript
  • TypeScript
  • React
  • Nextjs
  • Blitzjs
  • HTML5 / CSS3
  • React Hook Form
  • React Query
  • React Testing Library
  • Redux
  • Redux Observable
  • Redux Saga
  • Redux Thunk

React Native Development:

  • React Native
  • React Navigation
  • Expo
  • Detox / Maestro
  • Bitrise
  • CodePush
  • Xcode / Android Studio
  • Flipper

Backend Development:

  • Nodejs
  • Expressjs
  • NestJS
  • Passportjs
  • Prisma
  • Redis
  • PostgreSQL
  • MongoDB
  • DynamoDB
  • AWS Lambda
  • Python
  • Django
  • Django REST Framework

Others:

  • GIT (command line)
  • Mapbox
  • Jest
  • Sentry
  • Firebase
  • Bash
  • Celery
  • Zod

Languages

Polish
Native language
English
Upper intermediate
B2

Additional Information

I agree to the processing of personal data provided in this document for realising the recruitment process pursuant to the Personal Data Protection Act of 10 May 2018 (Journal of Laws 2018, item 1000) and in agreement with Regulation (EU) 2016/679 of the European Parliament and of the Council of 27 April 2016 on the protection of natural persons with regard to the processing of personal data and on the free movement of such data, and repealing Directive 95/46/EC (General Data Protection Regulation).

Timeline

Project 1: Tech Lead / Full Stack Developer

STX Next
04.2023 - 10.2023

Project 2: React Native Developer

STX Next
11.2022 - 03.2023

Project 3: React & React Native Developer

STX Next
04.2022 - 10.2022

Project 4: Tech Lead / React Native Developer

STX Next
07.2021 - 04.2022

Project 5: React Native Developer

STX Next
01.2020 - 06.2021

Project 6: Full Stack Developer

STX Next
08.2019 - 12.2019

Project 7: React Native Developer

STX Next
07.2018 - 07.2019

Project 8: Full Stack Developer

STX Next
01.2018 - 06.2018

Project 9: Full Stack Developer

Wakacje.pl
01.2015 - 12.2017

Bachelor of Art in Information Technology -

University of Gdańsk

Major in Information Technology -

Secondary Technical School of Mechanical Engineering
Adam Sajko