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Stefan Gojan
Software Architecture and Development
Heikendorf, Germany
Experience
Education
Languages
Experience
May 2024 - Dec 2024
8 months
Software Architecture and Development
MediaMarktSaturn Retail Group
One of the largest e-commerce platforms in Europe with nearly ten sales lines in various EU countries.
Technical environment: TypeScript, React, Styled Components, Apollo, GraphQL, Jest, Playwright, Git.
Apr 2022 - Sep 2023
1 year 6 months
Software Architecture and Development
Exaring AG
Waipu TV delights more than 5 million customers on many platforms and on the web.
Introduction of a new booking system for entertainment packages.
Web player:
Support for the full lifecycle of a media SPA.
Feature development.
Bug fixing.
Maintenance.
TV package booking:
New or existing customer.
Upgrade or downgrade.
Existing or new payment method.
Kept functional through unit and UI tests.
Adjustments despite major changes to the codebase.
Cross-project error management system with Sentry in the monorepo.
Technical environment: JavaScript / TypeScript, React, CSS-in-JS, Jest, WebdriverIO, Git.
Feb 2020 - Dec 2020
11 months
Consulting, Software Architecture and Development
north.io GmbH (EGEOS GmbH)
Development of modern web applications with a strong GIS focus.
Consulting, architecture, and development from a single source.
Development of a design system based on Material-UI:
Leverage synergies between projects.
Shorten development time.
Programming core functionalities like layered theming.
Creation of various components, including extended buttons and input elements.
Solving recurring issues and demonstrating development patterns.
Documentation through an example project:
Onboarding new employees.
Following existing conventions.
Training the team with presentations and exercises.
Technical environment: JavaScript (Babel), React, Material-UI, Styled Components, Apollo, GraphQL, Ramda, Jest, Git.
Feb 2019 - Jan 2020
1 year
Software Development
KAISER+KRAFT Europa GmbH
Creation of a responsive web shop with a B2B focus in three versions and across more than 20 countries.
Technical environment: JavaScript (Babel), React, Redux, Redux-Thunk, Ramda, Sass, Webpack, Jest, Git.
Jun 2018 - Dec 2018
7 months
Software Architecture and Development
Blockchain Holding GmbH
Development of a blockchain application from concept to finished product.
Display of performance metrics for user compute power and financial returns.
Overview based on the entire user account.
Detailed views for different cryptocurrencies.
Responsive design for various devices.
Requirement analysis with UX designer.
Technical implementation of requirements.
UI design process for aesthetics and development time.
Reusable React components for a minimal codebase.
Shared project structure for code reuse across project boundaries.
Rapid development using a fake backend.
Detailed documentation for backend and frontend consistency.
Technical environment: JavaScript (Babel), React, Material-UI, Redux, Redux-Saga, Ramda, React-Spring, Sass, Webpack, Jest, Git.
Apr 2016 - Apr 2018
2 years 1 month
Software Architecture and Development
GIS Gesellschaft für InformationsSysteme AG
Development of a digital workplace solution.
Intuitive interface, productivity boost, and employee networking.
Management of entire page structures and customizable widgets for content:
News, wiki, calendar, etc.
Dynamic system for customer requirements.
Maximum test coverage for quality assurance.
Storybook component catalog for structural tests and a showcase for clients.
Scalable internationalization and responsive design.
Use of stable tools for future-proof development.
Technical environment: JavaScript (Babel), React, Material-UI, Redux, Redux-Saga, Ramda, Sass, Webpack, stampit, Ava, Node.js, Gulp, Git.
May 2015 - Dec 2015
8 months
Software Development
IronShark aka VOXELWORLD
Development of a 3D editor for products:
Editing and viewing in the browser.
Customization by users.
3D load and save options for configurations.
Manual and server-driven manipulation of 3D objects.
Configurable scenes for lighting, shadows, camera, and zoom.
UI components for customizations:
Color, material, size, texture, labeling.
Client-side internationalization.
Node.js modules and browser conversion with Browserify.
Use of code for client and server validation (UniversalJS).
Unit tests for logic modules.
Technical environment: JavaScript, three.js, UniversalJS, jQuery, WebGL, stampit, Git, Gulp, Browserify, BrowserSync, tape.
Jun 2014 - Jul 2014
2 months
Software Development
Development of a prototype "What-if Analysis".
Full-stack application using MEAN.
Wizard-based input interface with synchronized charts.
Interactive and illustrative user guidance.
Animations in 2D and 3D.
Highly modular code structure.
Technical environment: JavaScript, Node.js, d3.js, AngularJS, three.js, Express, MEAN stack, stampit, Bootstrap, Sass, Mercurial.
Mar 2012 - Jul 2015
3 years 5 months
Frontend Team Lead, Software Development
FalkAnalytics
Technical design and implementation of a reporting frontend single-page application.
Graphical data processing with d3.js.
User-customizable component layout and intuitive interface.
JavaScript performance analysis.
Automated tests.
Creation of in-house prototypes with jQuery and Bootstrap.
Technical environment: JavaScript, ExtJs, d3.js, HTML, CSS.
Oct 2008 - Dec 2011
3 years 3 months
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University of Lübeck
Degree: Master of Science in Computer Science.
Software systems engineering, modeling and implementation of large, complex software systems.
Considering the entire software lifecycle: requirements analysis, specification, implementation, operation, and maintenance.
Apr 2008 - Sep 2008
6 months
Software Development
itemis Pforzheim
Onboarding into Java frameworks:
JavaServer Faces.
Eclipse Rich Client Platform.
Eclipse Modeling Framework.
Project at Bosch with XML processing.
Technical environment: Java, XML.
Oct 2004 - Mar 2008
3 years 6 months
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Ulm University of Applied Sciences
Degree: Bachelor of Science in Technical Computer Science.
Design and creation of holistic systems consisting of hardware and software.
Languages
German
Native
English
Advanced
Education
Oct 2008 - Dec 2011
University of Lübeck
Master of Science, Software-Systems-Engineering · Computer Science · Lübeck, Germany
Oct 2004 - Mar 2008
Ulm University of Applied Sciences
Bachelor of Science · Technical Computer Science · Ulm, Germany
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