Testimonials

I have worked and continue to work with many customers around the world, in every time zone. I work on both large corporate projects and startups. I like challenges and the deadline agreed with a client is the most important value for me. I encourage you to read the references given to me by my clients, you can also find them on my Upwork and LinkedIn profiles.

Upwork

  • Jochen Daum

     

    Automatem Ltd.

    Fabian did a great job sticking to a tight specification, tight deadline and delivering high quality code. He was very good at picking up inconsistencies and proactively suggested solutions that made sense. Highly recommended.

  • Sonya Petcavich

    Meowtel.com

    Fabian was exceptional! Not only did he deliver on the Yii enhancements I needed done, but he went above and beyond and was a collaborator as well – providing ideas or workflows I hadn’t even though of. I’d highly recommend!!

     

    Sonya Petcavich

  • Vladimir Lisic

     

    Aztek Holdings Ltd.

    Working with Fabian has been the most amazing experience! He is a 200% dedicated expert, understanding software architecture and application scaling. His expertise has been indispensable on our project and his contribution made our application international. Working with Fabian over the last 2 years has been by far the greatest experience – he is dedicated, committed and never-ever under-delivered – if anything, he always went above and beyond to tackle not only planned work but also scope creep, urgent issues and unplanned features. I can’t recommend him highly enough for his work ethics or his development skills – it has been a great experience and I look forward to working with him again soon!

  • Douglas Schiller

    CrushErrors.com

    Fabian is an excellent developer who exceeded our expectations.

     

    Douglas Schiller

  • Jason Curry

     

    Faction Studio Inc.

    Been on Upwork many years, Fabian is one of the best guys I’ve ever worked with. We had a problem with a complex web application we built years ago and I had multiple developers and the hosting company itself try to fix these complex issues and no one could do it. Fabian did it in one morning! Super happy, couldn’t be happier!

  • Michel Büchner

    Het Slimme Collectief B.V.

    Fabian helped us in maintaining and optimizing a rather complex portal. In no time he was able to speed up processes impressively. Also Fabian is to the point, and he thinks along in the best solution (time vs quality). I would definitely recommend him and work with him again.

     

    Michel Büchner

  • Kyoko Furuya

     

    Heart Hunger

    Good quality and work! thanks!

LinkedIn

  • Mariola Bębenkowska

     

    Product Development & Quality Operations Manager

    Fabian, is one of the best (if not the best) specialist I have ever worked with. Always keeps the deadlines, comes back with the solution, full of ideas. If you want to have your project successful, Fabian is the best option to make it happen 🙂

  • Emil Wypych

    DevOps Engineer w Genesis Global Limited | Automation | Linux | Cloud Computing

    It’s my pleasure to recommend working with Fabian. I have worked hand in glove with him since my first day in Genesis and from the very beginning, he revealed himself as a solution-oriented person. His knowledge and expertise in application development make him a valuable team member. He is also a great team player who always manages to foster a discussion. There is no challenge he cannot face. Fabian is a very important part of the Genesis Family.

     

    Emil Wypych

  • Jochen Daum

     

    Owner of Automatem Ltd

    I was fortunate to have Fabian apply for a small project on Upwork in late 2015. Between that time and 2020, I have brought Fabian onto many small and long term projects that involve custom PHP code as well as Yii and Symfony code bases.

    As an extremely experienced developer, Fabian needs very little guidance to complete development tasks in the variety of industries we have worked on together and always completes projects on time – even with sometimes arbitrary deadlines.

    I was always impressed by the sheer amount of code output in digital automation projects he produced as well as the completeness of functionality. We would probably have benefitted from engaging him more often for unit and acceptance test development on our projects as well.

    Fabian also has an extremely high level of integrity, so much so that I had to spend a lot of time talking him into working with one of my clients directly, as I had to step back due to personal health issues. I have no doubt that Fabian takes his work relationship extremely serious.

    Finally we found that Fabian can be tasked with doing extensive and detailed technology research to determine the right tool for the job and his output was as exemplary as I expected based on his other work.

    I would not hesitate recommending Fabian to anyone requiring his technology skills.

  • Sonya Petcavich

    Founder - Meowtel.com

    Fabian and I had the pleasure of working together for several years, primarily on backend development projects. He excels at clarifying the project’s scope and delivering very high quality work on time; I don’t think he ever missed a deadline with us. He provides great communication along the way and works very well in a 1:1 setting with a client, including being willing to hop on calls at all hours of the day to make sure things are done correctly. I would highly recommend Fabian for any PHP/backend project!

     

    Sonya Petcavich

  • Marta Małecka

     

    eCommerce, eMarketing, Communication Expert

    I’ve worked with Fabian at Plodni.com. Fabian is very helpful work colleague. He is task-oriented and problem-solving. He is not afraid of new challenges, which is very welcome.

  • Karolina Pawłowska

    QA, coach and co author book about testing.

    When we worked together (in Komputronik SA and later in Genesis Global Ltd.), I remember that Fabian always took on those difficult tasks. Other developers were afraid of 😉 He enjoyed tracking down and eliminating heisenbugs that could not be eliminated for years. Fabian is able to effectively conduct meetings, concretize business needs and translate them into the language of developers. The cooperation was always at a high level and at the same time in a nice atmosphere. Fabian has a unique combination of technical and soft skills.

     

    Karolina Pawłowska

  • Marcin Gibuła

     

    Systems / Software Architect

    Fabian is a very dedicated and broad thinking programmer that can bring a lot to a table. We’ve worked together and he proved to be able to grasp all key issues for the project – be it backend, frontend or regulatory questions that needed to be answered. You can rely that whatever the matter you bring to him, he’s solution will be the one that is backed up by tons of on-hands experience. If you are looking for experienced backend engineer who is not afraid of other parts of your stack – look no further.

  • Sebastian Molenda

    Software Engineer

    I’ve worked with Fabian at Komputronik. During this time i saw Fabian doing wide range of tasks from projecting and developing new and complex features, through refactoring existing code, up to debugging even the hardest problems. Each of this task he approached head-on and fulfiled them without problems. The code he produced was functional, optimal and rarely needed additional tweaks. As a reviewer of other developers code He often was able to provide constructive criticism and helped guide younger developers to improve their skills. At Komputronik Fabian learned and adopted our scrum approach and even was able to help us develop better practices. His expertise and broad knowledge was a valuable addon to our team.

     

    Sebastian Molenda

  • Damian Rzepczyk

     

    Project Manager

    Whenever I think about the professional relationship I had with Fabian, three things come to my mind – trust, integrity, and his eagerness to learn and take responsibility. All the three qualities that are desirable in any professional! When it comes to Fabian’s skill in the field of development and programming, it’s simply outstanding. I still remember how he always surprised me with his attention to detail and, especially, his commitment to deadlines. His vast experience as a developer and a programmer has already led him to leadership roles where he has single-handedly worked on projects right from the stages of client communication to that of the deliverables. One of the many qualities that I loved about Fabian was his faithfulness to quality. No matter how minimal a task is, this guy worked on it with full passion and dedication. In fact, to date, I talk about this quality of Fabian to my present employees. As a front-row audience of Fabian’s work ethic, I know for sure that any company will be lucky to have him on board as a developer, programmer, or Team Lead.

  • Maciej Przybyło

    Agile Leader, Engineering Manager

    Fabian is one of best technical leaders and engineers I had pleasure to work with. He has strong focus o goal and nevertheless, how difficult task had been put in front of his team, he could lead the team the way that it was delivered on time and with high quality. He is great example of engineer ethos as he as a person, really cares what his team is delivering, do everything what he can to keep his employer operating and in great condition. He’s also great subject matter expert in payments and i-gaming domains not only technology, but as well business wise.

     

    Maciej Przybyło

  • Filip Berlikowski

     

    Chief Technology Officer

    Fabian joined my team at its inception. From the beginning, he demonstrated his technical skills and out-of-the-box approach to the challenges we had to face. He always proved to be very creative problem solver with „let’s do it” approach. He is very customer orientated and always with business needs in mind. As a team leader, he takes care of both the timely delivery of tasks and the team atmosphere. When working at Genesis thanks to his drive for knowledge and learning Fabian became a mine of information in the field of payments and i-gaming, both technical and business. Fabian never shies away from responsibility and is one of the most reliable individuals I worked with.