I am a passionate programmer specialized in software architecture and writing structured, modular, and testable code.I am also interested in different database systems and how they can be used effectively together.I work as a freelancer and I'm open to offers with a focus on:* Designing and implementing modern software architectures at component level (app, web, etc.)* Designing complex high-level software architectures for the interaction between components* Incremental refactoring of legacy codeIn my free time I love to learn about novel technologies and frameworks, implement cross-platform mobile apps in Kotlin multiplatform and Flutter, develop backends (e.g., in Spring or Ktor), and play around with Angular and React. I am not interested in offers for permanent positions.
Freiberuflich
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Freelance Software ArchitectFreiberuflich Aug 2022 - PresentLeipzig, Saxony, GermanyI'm open to offers with a focus on:* Designing and implementing modern software architectures at component level (app, web, etc.)* Designing complex high-level software architectures for the interaction between components* Incremental refactoring of legacy code
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Software EngineerCaravaning Customer Connect Gmbh Sep 2022 - PresentMaintenance and expansion of the FREEONTOUR iOS app with features such as a route planer, route sharing with other apps and supported navigation systems, managing of own profile and vehicles.In this context I * Implemented new features * Integrated the heresdk * Adjusted an extension of an navigation system to receive routes sent by the FREEONTOUR app via BLE * Built a CI / CD * Maintained existing code * Fixed various bugs * Agile working in sprints
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Software EngineerF&P | Creating Communities Mar 2018 - Sep 2022Leipzig, Saxony, GermanyMaintenance and expansion of a dating app with features such as messenger, user feed, nearby search, event creation, voting.In this context I * Conceived a modern architecture * Planned & implemented refactorings without feature stop * Implemented new features * Implemented unit & integration tests * Maintained existing code * Defined API specifications together with the backend team * Expanded the CI / CD pipeline * Analysed Firebase events in BigQuery * Set up A/B tests * Evaluated novel technologies & frameworks * Documented architecture & tech stack * Conducted job interviews * Introduced new developers to our code base & tools * Agile working according to Scrum -
Software DeveloperAppsfactory Mar 2017 - Feb 2018Leipzig, Saxony, GermanyMain Projects: * Android app for searching and reserving hotel rooms in a hotel group with a bonus point system * Android app for listening to live radio, podcasts, and audio booksIn this context I * Implemented a new app * Maintained and extended existing apps * Defined API specifications together with the backend team * Integrated Appium UI tests * Integrated tracking events * Supervised a working student -
Software DeveloperLionapps Gmbh Oct 2015 - Dec 2016Leipzig, Saxony, GermanyMain Projects: * Android app for soccer sports bets * Android app to create music video clips based on song beat analysis and selected images In this context I * Implemented a new app * Maintained and extended existing apps * Implemented a cross-platform video encoding in C++ * Integrated C++ code into Android & iOS apps * Implemented data export and sharing functionality for in-app content
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Software DeveloperLionapps Gmbh Oct 2014 - Sep 2015Leipzig, Saxony, Germany* Implemented several image effects for realtime video rendering within mobile apps in C++ and OpenGL ES for my bachelor thesis "Cross-platform creation of image effects on mobile devices"* Updated video rendering code to create video clips with different animation steps
Marcel Lengert Education Details
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Computer Science -
Computer Science
Frequently Asked Questions about Marcel Lengert
What company does Marcel Lengert work for?
Marcel Lengert works for Freiberuflich
What is Marcel Lengert's role at the current company?
Marcel Lengert's current role is Freelance Software Architect.
What schools did Marcel Lengert attend?
Marcel Lengert attended Leipzig University, Leipzig University.
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