Frontend Lead Engineer
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- auf Anfrage
- 94-244 Lodz
- Europa
- pl | en | de
- 03.04.2025
Kurzvorstellung
Qualifikationen
Projekt‐ & Berufserfahrung
3/2020 – 12/2024
Tätigkeitsbeschreibung
o Joined the team on a rolling contract basis to lead the Frontend digital transformation of the CRM solution used by Metro AG
o Collaborated with: Team Leads, Product Owners, UX Designers, Managers
o Served as the go-to-person for Frontend-related topics
o Delivered presentations, documentation, and tutorials, pair-programmed, and mentored other engineers to enhance their Frontend expertise
o Structured and successfully delivered a new CRM web app for Metro AG
o Monitored the new solution and protected it against vulnerabilities
o Introduced Playwright as the optimal E2E testing solution
o Evaluated use cases for Micro-Frontends
o Conducted extensive Code Reviews and successfully interviewed multiple new engineers across different countries
o Tech: React, TypeScript, Jest, Playwright, Vite, Testing Library, Yarn, Monorepo, Docker, Kubernetes, GitHub Actions, Datadog, Google Analytics
Softwareentwickler
12/2018 – 6/2019
Tätigkeitsbeschreibung
Responsible for developing a Wealth Management System in a strict timeframe due to a new MiFID II regulation, delivering the most important part of the product for the business, which was calculating the final Investment Proposal for Customers.
o Closely cooperated with Business Analysts in order to understand Functional Documentations
o Successfully delivered the Investment Proposal part, passing a Code Review and meeting business requirements
o Was involved in technical review and developed other parts of the system based on the collected data
o Supported on-site developers for best coding practices, conducting Code Reviews and cooperating with them tightly
o Technologies: React, Redux, Immutable, Babel, Webpack, Mocha
React (JavaScript library)
6/2018 – 12/2018
Tätigkeitsbeschreibung
More independent work as an external contractor providing services to the client. Taking part in overhauling XING’s Startpage and cooperating with stakeholders: Senior Frontend Developers, UI Designer, Product Owner, QA Engineer.
Technologies: React, Redux, Flow, Immutable, Jest, Webpack, NodeJS
React (JavaScript library)
2/2018 – 10/2019
Tätigkeitsbeschreibung
o Delivered brand new web and mobile applications for Android and iOS for Blick Gruppe
o Led a team in the following topics: GraphQL, Backend Development, Testing, React Hooks
o Created a strategy for Automated Testing (Unit, Integration, Snapshots, E2E - including a novel Screenshots Testing)
o Conducted extensive Code Reviews and successfully interviewed new engineers
o GraphQL techie, Technologies: React, React Native, GraphQL, NodeJS, Express, TypeScript, Jest, WebdriverIO, Webpack, AWS, Redis
Node.Js, JavaScript, React (JavaScript library), React Native
10/2014 – 9/2015
Tätigkeitsbeschreibung
The aim of the project was to create E-Commerce Store in Magento and Mobile Application connected with ePOS devices at supermarkets. Responsible for validating existing solutions prepared by a team from Manila, proposing improvements and implementing them.
o Closely cooperated with two Accenture’s Managers from Munich to get an overview of all requirements
o Proposed a new architecture of the project, which was validated and accepted by Accenture’s Architects
o Managed a team consisting of 7 developers and mentored them on how to write applications in AngularJS
o Successfully delivered a Hybrid Mobile Application and handed it over to the team from Munich
o Technologies: JavaScript, AngularJS, Ionic Framework, Apache Cordova, HTML5, CSS3, Sass, Grunt, Bower, jQuery, PHP 5, Magento 1.6, REST API, MySQL, Git, Agile, Scrum, Kanban, Unit Testing, Java (ePOS Device)
Agile Methodologie, AngularJS, JavaScript, Magento
6/2014 – 8/2014
TätigkeitsbeschreibungA short-term contract to develop real-time modules for Internet of Things platform using Meteor.js. Directly cooperated with the CEO of the company and delivered a module for displaying the status of connected devices using LeafletJS.
Eingesetzte QualifikationenJavaScript
5/2013 – 9/2013
Tätigkeitsbeschreibung
A short-term contract providing services to the client and directly cooperating with the CEO of the company. Mainly responsible to provide a solution which needed to be deployed within a very strict deadline.
o Delivered a Hybrid Mobile Application with a dedicated CMS in time, with the performance accepted by CEO
o Maintained existing native applications both on Android and iOS platforms
o Technologies: JavaScript, Apache Cordova, Intel App Framework, ASP.Net MVC 4, C#, Entity Framework 4.5, Microsoft SQL
.Net Framework (Microsoft), JavaScript
Ausbildung
Lodz
Lodz
Über mich
FinTech, E-Commerce, Media, Social Media, and CRM, gained at esteemed
international companies such as Deutsche Bank, Accenture, XING, Ringier, Metro AG.
Full software lifecycle knowledge with an emphasis on Web Development (e.g. React,
GraphQL, TypeScript, NodeJS), Mobile Development (e.g. React Native) and
Automated Testing (e.g. Playwright – E2E Testing), including communication with
diverse stakeholders.
Since 2016, have been seeing the promising future for React and TypeScript.
Proven track record using these technologies both as a contractor and permanent.
Now seeking the next rewarding opportunity to make a successful impact using AI
technologies within a customer-focused team.
Persönliche Daten
- Polnisch (Muttersprache)
- Englisch (Fließend)
- Deutsch (Gut)
- Europäische Union
- Schweiz
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