Sebastian Ksiezak

Front-end developer

Rzeszów, Polen

Erfahrungen

Mai 2023 - Bis heute
2 Jahren 1 Monate
Rust, Deutschland
Remote

Front End React Developer

webbar GmbH

I am currently working for a remote-first company based in Rust, Germany. In WebBar GmbH I am responsible for developing front end part of the multitenant system.

Working on this project, I am using technologies and tools such as:

  • JavaScript / TypeScript,
  • React and Next.js,
  • HTML5 and JSX,
  • CSS/SCSS and Tailwind,
  • Recoil for app state management,
  • GraphQL,
  • TanStack Query to improve work with RESTful APIs
  • StoryBook, Cypress e2e Tests,
  • Docker,
  • JetBrains for Project Management,
  • WebStorm as Programming IDE,
  • CI/CD pipeline implemented with GitHub and DigitalOcean.

My Tasks include:

  • creating core components with Storybook, Cypress e2e tests and Tailwind for CSS,
  • building complex layouts and pages for PWA app with React and Next.js technology,
  • managing app state with Recoil library,
  • fetching backend data using GraphQL and TanStack Query library,
  • taking care of good quality code using design patterns and principles of clean code.,
  • taking care of CI/CD pipeline green state,
  • daily meetups with an international team, held in english.
März 2022 - Apr. 2023
1 Jahr 2 Monaten
Rzeszów, Polen

Frontend Developer

SolvSoft

In this position I was working as a front end developer using Vue js.

  • I was involved in the development of 4 projects for a Swedish client.
  • I worked in a team of 12 people in weekly sprints.
  • My tasks also included contact with the client, joint analysis of needs and solutions. The discussions were conducted in English.

Projects varied in technological level:

  • I worked in an older project written in pure JavaScript, Vue 2 - options api and Vuex.
  • As well as in two newer ones that had Vue 2 with Composition API, Vuex and Type Script.
  • And in a project written in Vue 3, with full TypeScript typing and implemented Pinia and Vite.

For component building and project styling I used:

  • Vuetify,
  • Quasar,
  • CSS/SCSS.

Development environment:

  • I was using VSCode editor.
  • For version control, I used Git with GitLab.
Jan. 2019 - Dez. 2021
3 Jahren
Rzeszów, Polen

Ecommerce Specialist

Euplus

My tasks included:

  • Market analysis, competition.
  • Monitoring sales,
  • Running PPC advertising campaigns,
  • Negotiating with suppliers of goods,
  • Retail customer service.
Jan. 2016 - Dez. 2019
2 Jahren

Pomoc Techniczna w Biurze Rachunkowym

Biuro Rachunkowe

Nov. 2013 - Jan. 2016
2 Jahren 3 Monaten

Android App Developer

Samozatrudnienie

Juni 2013 - Sept. 2013
4 Monaten
Coimbra, Portugal

Erasmus Internship Program

Active Space Technologies

As part of the Erasmus Internship Program at Active Space Technologies (Systems and Controls department), I participated in the InTrain project and performed the following tasks:

  • testing ZigBee PRO modules,
  • development of software for displays (C++ programming in Visual Studio),
  • development of software for embedded systems (C programming in Eclipse),
  • testing of sensors,
  • assisting with documentation.

Zusammenfassung

I am Sebastian and I am a Frontend Developer with commercial experience in two major frameworks: React / Next.js and Vue.

I am currently working for a remote-first company based in Rust, Germany. In WebBar GmbH I am responsible for developing frontend part of the multitenant system.

Working on this project, I am using technologies and tools such as:

  • JavaScript / TypeScript,
  • React and Next.js,
  • HTML5 and JSX,
  • CSS/SCSS and Tailwind,
  • Recoil for app state management,
  • GraphQL,
  • TanStack Query to improve work with RESTful APIs
  • StoryBook, Cypress e2e Tests,
  • Docker,
  • JetBrains for Project Management,
  • WebStorm as Programming IDE,
  • CI/CD pipeline implemented with GitHub and DigitalOcean.

My Tasks include:

  • creating core components with Storybook, Cypress e2e tests and Tailwind CSS,
  • building complex layouts and pages for PWA app with React and Next.js technology,
  • managing app state with Recoil library,
  • fetching backend data using GraphQL and TanStack Query library,
  • taking care of good quality code using design patterns and principles of clean code.,
  • taking care of CI/CD pipeline green state,
  • daily meetups with an international team, held in english.

In the previous position I was working as a FrontEnd Developer for a Swedish client. I was involved in the development of 4 projects, each with a slightly different level of techstack from the Vue js family.

Techstack: HTML5 CSS / SCSS JavaScript ES6 / TypeScript

Vue 2 - Options Api & Composition Api Vue 3 Vuetify 2, Quasar

Vue Router Vuex / Pinia

Git & GitLab

In the past, I had exposure to object-oriented programming in languages:

  • C++ (engineering thesis titled: "Autopilot measurement interface software".
  • Java / Android (project: "Mobile flight recorder for a UAV".

I am currently developing skills in:

  • Front End Development using React, Vue,
  • Good programming practices using design patterns, principles of clean code.

In 2024 I also plan to develop into a Full Stack Developer using:

  • Node js
  • Express, Nestjs
  • Mongo DB
  • AWS

Sprachen

Polnisch
Muttersprache
Englisch
Verhandlungssicher
Spanisch
Fortgeschritten
Deutsch
Grundkenntnisse

Ausbildung

Okt. 2012 - Juli 2014

Politechnika Rzeszowska im. Ignacego Łukasiewicza

Lotnictwo i Kosmonautyka · Rzeszów, Polen

Feb. 2011 - Juli 2011

Universitat Politècnica de València (UPV)

Erasmus Students Exchange, Aviation · València, Spanien

Okt. 2007 - Feb. 2012

Politechnika Rzeszowska im. Ignacego Łukasiewicza

Inżynier (Inż.) · Lotnictwo i Kosmonautyka · Rzeszów, Polen

Zertifikate & Bescheinigungen

Android Certified Application Developer

Beginning iOS App Development - Nanodegree Program

JSE - Certified Entry-Level JavaScript Programmer

OMG-Certified UML Professional

TOEIC - Test of English for International Communication