I'm a Bulgarian software developer specializing in mobile applications and backend services. I help teams migrate and modernize apps to .NET MAUI, implement REST APIs, and architect scalable microservice-based solutions. I also enjoy mentoring new developers, improving app performance, and driving robust DevOps practices with App Center and Azure Application Insights. I value clear communication, accessibility, and user-centric design, and I am always eager to learn new technologies to deliver reliable software and seamless user experiences.

Marian Hristov

I'm a Bulgarian software developer specializing in mobile applications and backend services. I help teams migrate and modernize apps to .NET MAUI, implement REST APIs, and architect scalable microservice-based solutions. I also enjoy mentoring new developers, improving app performance, and driving robust DevOps practices with App Center and Azure Application Insights. I value clear communication, accessibility, and user-centric design, and I am always eager to learn new technologies to deliver reliable software and seamless user experiences.

Next availability:
January 1, 2026

I’m a Bulgarian software developer specializing in mobile applications and backend services. I help teams migrate and modernize apps to .NET MAUI, implement REST APIs, and architect scalable microservice-based solutions. I also enjoy mentoring new developers, improving app performance, and driving robust DevOps practices with App Center and Azure Application Insights.

I value clear communication, accessibility, and user-centric design, and I am always eager to learn new technologies to deliver reliable software and seamless user experiences.

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Experience Level

Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
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Language

Bulgarian
Fluent
German
Advanced
English
Fluent
Russian
Advanced

Work Experience

Mobile Application Developer (Freelancer) at TÜV SÜD
August 1, 2023 - November 5, 2025
Migration of company applications to .NET MAUI; implement new synchronization between app and web data; remove old OData/SQL transfer processes and implement REST API processes; introduce microservice-based architecture with dependency injection; develop and refactor features; train new developers; improve overall app performance with robust error handling; implement App Center and Azure Application Insights tracking; documentation and sprint planning.
Mobile Application Developer (Freelancer) at MetLife Pet Insurance
July 1, 2023 - July 1, 2023
Development for MetLife Pet Insurance App; ensure ADA compliance (voice recognition for TalkBack/VoiceOver); implement keyboard accessibility focus; refactor features; train new developers; improve pipeline and performance; add Sentry tracking; documentation and sprint planning.
Mobile Application Developer at REAL GmbH
September 1, 2021 - September 1, 2021
Lead development for Real Lebensmittelshop App; architecture assistance for Real Services App (Version 2.0); planning and tablet version development; developer support on issues; Azure Solutions implementation; training and onboarding of new developers; Xamarin Forms cross‑platform development; online marketing tool integration (Google Firebase, Microsoft App Center); backend API development; SAP Hybris to REST API integration; UI tests preparation for performance.
Mobile Application Developer (Freelancer) at TÜV SÜD
August 1, 2023 - November 19, 2025
Migration of various company applications to .NET MAUI; Implementation of new synchronization process between app and web data; Removing of old Odata/SQL database transfer process and implementing REST API processes; Implementation of microservice based architecture for the application (Dependency injection methods); Developing and refactoring of specific features in the app; Training and introduction of new developers to the production processes; Improvement of Overall Performance of the app by implementation of error handling in vulnerable areas; Implementation of App Center and Azure Application Insights tracking; Documentation and sprint planning.

Education

Bachelor of Science in Finance and Control at Fontys International Business School (Fontys Hogeschoolen), Venlo, the Netherlands
September 1, 2011 - July 1, 2015
Exchange Semester at Kongju National University
June 1, 2013 - February 1, 2014
Bachelor of Science in Finance and Control (Bedrijfeconomie) at Fontys International Business School (Fontys Hogeschoolen)
September 1, 2011 - July 1, 2015
Economics (Exchange Semester) at Kongju National University
June 1, 2013 - February 1, 2014

Qualifications

Add your qualifications or awards here.

Industry Experience

Software & Internet, Professional Services, Media & Entertainment, Retail, Computers & Electronics, Healthcare
    paper Verify App

    https://www.twine.net/signin
    ▪ Implementation of new synchronization process between app and web data
    ▪ Removing of old Odata /SQL database transfer process and implementing REST API processes
    ▪ Implementation of microservice based architecture for the application (Dependency injection methods)
    ▪ Developing and refactoring of specific features in the app
    ▪ Training and introduction of new developers to the production processes
    ▪ Improvement of Overall Performance of the app by implementation of error handling in vulnerable areas
    ▪ Implementation of App Center and Azure Application Insights tracking
    ▪ Documentation and sprint planning

    paper Metlife Project

    https://www.twine.net/signin

    ▪ Implementation of the app based on Americans with Disabilities Act (ADA) requirements.
    ▪ Making the app fully voice recognizable for ADA(Talkback/Voiceover)
    ▪ Implementation of keyboard accessibility focus within the app (Architecture structure + platform specific models)
    ▪ Developing and refactoring of specific features in the app
    ▪ Training and introduction of new developers to the production processes
    ▪ Improvement of Overall Performance of the app by implementation of error handling in vulnerable areas
    ▪ Implementation of Sentry tracking
    ▪ Improvement of the pipeline process within the app (Removing cherry picking process for particular features)
    ▪ Documentation and sprint planning