Hire me

Leveraging over 20 years of software engineering expertise across a wide array of technologies and platforms, I offer a comprehensive suite of services designed to meet and exceed your development needs. My approach combines technical depth with a keen eye for efficiency and user experience, ensuring each project not only meets its goals but also pushes the envelope of what’s possible.

You can contact me here.

Offered Services

If you’re looking to prototype or develop applications within Apple’s ecosystem or require robust Java backend development coupled with comprehensive web development, I’m here to help. My expertise spans from bringing initial app concepts to life, ensuring they thrive in the Apple environment, to crafting and maintaining powerful backend systems that support complex web applications.

  • App Development: Specializing in building and enhancing mobile applications from the ground up as well as updating existing apps with new features or bug fixes. Expertise in modernizing legacy apps using the latest development paradigms, including SwiftUI and async/await.

  • Backend Systems and Full-Stack Development: Not only providing backend support with Java within monolithic or microservices architectures but also offering full-stack development capabilities using web technologies. This dual focus ensures both the backend and frontend of your platforms are optimized for performance, scalability, and user engagement.

  • CI/CD Automation: Implementing and refining continuous integration and deployment processes, including the use of tools like fastlane and GitHub Actions, to streamline workflows and improve deployment reliability.

  • Codebase Audits and Refactoring: Evaluating existing codebases for improvements, refactoring code to increase maintainability and testability, and ensuring long-term project health.

  • Product Idea Exploration: Quickly prototyping new product ideas to validate concepts and refine user experiences, employing a rapid development approach to innovation.

Location

Located in Fürth, Bayern, Germany, my work aligns with the Europe/Berlin timezone. I primarily engage in remote projects, ensuring efficiency and adaptability. On-site collaboration is an option for occasional meetings or during the initial project phase if necessary.

Testimonials

Over the course of my career, I’ve contributed as both a full-time software engineer and an independent contractor at diverse companies. This path has allowed me to collaborate with a host of talented and great individuals. Here are testimonials from some of them:

  • Gohar Gasparyan — Biowink GmbH, 2023-2024
    Senior Engineering Manager

    "I worked closely with Markus at Clue for a year and was lucky to be his manager. Markus is an exceptionally skilled senior iOS engineer. His work is clean, efficient and fast, always informed with best practices and lots of attention to detail.He is very passionate about iOS latest and greatest and besides can also help put on backend when needed.

    You can rely on him breaking down any complex task and handle on his own. He has been a great mentor for other teammates, reviewing and consulting them, but at the same time not imposing his views and letting them drive their own growth. Markus will always give an honest, unfiltered feedback and that has been of a great help for the team. I would highly recommend working with Markus. "

  • Christian Storch — Exaring AG, 2017-2022
    Chief Technology Officer (CTO)

    "I had the pleasure of working with Markus and can confidently say he is an outstanding professional who consistently exceeds expectations. Proactive and forward-thinking, Markus tackles challenges head-on and drives initiatives independently, making a significant impact across teams.

    His expertise in mobile application architecture is remarkable. He led the development of a unified codebase for multiple brands and Apple platforms, enhancing our processes and improving scalability.

    What sets Markus apart is his ability to innovate. The "Magic Login" feature is a prime example; he conceived, designed, and guided it through patent filing, implementation, and cross-team adoption, showcasing his technical skills and collaborative spirit.

    Markus is a true leader who fosters innovation and delivers impactful results. I wholeheartedly endorse him for any role that requires expertise and leadership in mobile application development or technical architecture. "

  • Emeline Cordat — Exaring AG, 2019-2022
    Senior Product Owner / Teamlead Product Management

    "J’ai eu la chance de travailler avec Markus sur différentes applications pour Apple (iOS mobile, tablet et tvOS). J'ai partagé avec lui entre autre un projet particulièrement passionnant : la création de zéro d’une application pour l’Apple TV. En tant que Product Owner, collaborer avec Markus a été une expérience incroyablement enrichissante et agréable.

    Markus est un développeur exceptionnel, d'une grand fiabilité et doté d’une véritable passion pour offrir le meilleur produit possible aux utilisateurs. Il ne se contente pas simplement de développer des fonctionnalités : il se met à la place des utilisateurs, cherche constamment à comprendre leurs besoins et dépasse les attentes pour proposer des solutions adaptées, pertinentes, tout en restant pragmatique. Il a vraiment à coeur d'améliorer le produit, est sensible à un bon design et sait identifier et recommander les "quick wins".

    Au-delà de ses compétences techniques impressionnantes, Markus est aussi un collègue exemplaire. Son calme, son investissement total dans le projet, son efficacité et sa capacité à collaborer avec les membres de l’équipe en font un véritable pilier. C’est un vrai team player, toujours prêt à écouter, à proposer des idées, à faire avancer le projet dans la bonne direction et participer activement et volontairement à ce que l'équipe atteigne ses objectifs.

    Notre collaboration a été une vraie réussite dans sa globalité, et aussi en particulier lors du développement de la fonction de recherche pour l'application pour Apple TV où nous avons travaillé en duo. Travailler avec Markus a été pour moi un véritable bonheur, et je ne peux que le recommander chaleureusement à toute équipe qui cherche un développeur talentueux, pragmatique, passionné et engagé. Il a été un acteur clé dans le succès de nos applications Apple, et je suis certaine qu’il continuera d’exceller dans tous les projets qu’il entreprendra, dans ou hors du monde d'Apple! "