Orsolya Belasitz, OpenFin Developer in London, United Kingdom
Orsolya Belasitz

OpenFin Developer in London, United Kingdom

Member since September 23, 2019
Orsolya has been working as a full-stack developer for several years on both smaller and larger-scale projects. She has a strong detail-oriented mindset, loves solving exciting problems, and enjoys working both independently and as part of a team. While Orsolya considers herself language-agnostic and always eager to learn new technologies, she is most experienced in HTML/CSS, React, Node.js, REST APIs, C#, Docker, SQL, and NoSQL.
Orsolya is now available for hire


  • Adoptech
    React, Ruby on Rails (RoR)
  • Redkite
    Microsoft SQL Server, Web API, C#, TypeScript, Redux, React
  • Irisium
    Java, Docker, Cassandra, Electron, TypeScript, React



London, United Kingdom



Preferred Environment

GitHub, Visual Studio Code

The most amazing...

...website I've worked on was a popular auction site. It's amazing to work on something that millions of people use every day and I can see the impact of my code.


  • Contract Software Engineer

    2020 - PRESENT
    • Developed a web app from almost the beginning to deliver a platform for business users.
    • Delivered regular bug fixes through regular testing of the application.
    • Collaborated with the design team to improve user experience.
    Technologies: React, Ruby on Rails (RoR)
  • Full-stack Software Consultant

    2019 - 2020
    • Improved the UI of existing platforms working with no design team involved.
    • Implemented third-party authentication with Okta and Microsoft Azure.
    • Added unit tests to existing projects, improved the test coverage and overall project stability to get fewer bugs.
    • Integrated dashboards into a data analytics platform.
    Technologies: Microsoft SQL Server, Web API, C#, TypeScript, Redux, React
  • Software Engineer Consultant

    2018 - 2019
    • Contributed to the build of a greenfield front end for a trading surveillance platform.
    • Designed the coding patterns for front-end development.
    • Performed frequent code reviews and peer programming.
    • Designed and implemented a cross-window authentication framework via OpenFin.
    • Collaborated with back-end developers on API designs.
    • Implemented a graph visualization of large historical data.
    Technologies: Java, Docker, Cassandra, Electron, TypeScript, React
  • Full-stack Software Engineer

    2018 - 2018
    • Contributed to the build of a client-facing application for an AI startup.
    • Delivered full-stack features with unit testing.
    • Gathered user feedback on front-end functionalities.
    • Performed frequent code reviews and peer programming.
    • Developed large multi-page forms.
    Technologies: Cassandra, Node.js, React
  • Full-stack Software Engineer

    2017 - 2018
    • Developed the main software for a global logistics company.
    • Researched and analyzed data deduplication algorithms.
    • Improved processes by giving feedback to the wider team.
    • Performed code reviews and peer programming.
    Technologies: Microsoft SQL Server, JavaScript, C#
  • Full-stack Software Engineer

    2016 - 2017
    Trade Me
    • Participated in the full-stack development of the top New Zealand auction website.
    • Performed frequent code reviews and peer programming.
    • Delivered full-stack functionalities in a strongly Agile manner.
    • Developed secure payment flow processing credit card and balance payments.
    Technologies: Mercurial, SQL, C#, .NET, REST APIs, TypeScript, AngularJS
  • Software Development Engineer Consultant

    2016 - 2016
    • Consulted on continuous deployment for a New Zealand bank.
    • Developed a PowerShell script library to support continuous development across multiple teams.
    • Advised on best practices.
    • Consulted on improving inter-team collaboration processes.
    Technologies: Windows PowerShell, TFS
  • Full-stack Software Engineer

    2011 - 2015
    Morgan Stanley
    • Collaborated with an international team on the operation, support, and troubleshooting of an in-house built configuration management system and related tools.
    • Worked in a scrum development team on a custom configuration management system.
    • Performed frequent code reviews and peer programming.
    Technologies: Windows Presentation Foundation (WPF), Windows PowerShell, Microsoft SQL Server, .NET, C#


  • Choose Your Dog Website

    This is a full-stack project that I made in order to experiment with a variety of technologies. I developed the website using the following technologies: React, Node.js, Docker, Kubernetes, Terraform, and Google Cloud.

  • Chat Application Using Socket.IO

    A chat application built with Socket.IO, Node.js, Express, React, React Context, React Hooks, and TypeScript. It can retain chat messages and re-join the chat room. Themes and user settings are saved through local storage and React Context.


  • Languages

    JavaScript, TypeScript, GraphQL, Python, C#, SQL, HTML5, CSS, Java
  • Libraries/APIs

    React, Node.js, REST APIs, Passport.js, Web API
  • Other

    Debugging, Troubleshooting, Third-party Authentication, Authentication, OpenFin, User Authentication, APIs, Okta, Enzyme, Collaborative Design
  • Frameworks

    JSON Web Tokens (JWT), OAuth 2, Jest, Selenium, Electron, Redux, AngularJS, .NET, Windows PowerShell, Windows Presentation Foundation (WPF), Ruby on Rails (RoR)
  • Tools

    GitHub, Mercurial, Webpack 4, Keycloak, Git, Webpack, TFS
  • Paradigms

    Continuous Integration (CI), Continuous Deployment, Agile Software Development
  • Industry Expertise

  • Storage

    MySQL, Microsoft SQL Server, Cassandra, MongoDB, NoSQL
  • Platforms

    Firebase, Visual Studio Code, Docker


  • Bachelor of Science Degree in Computer Engineering
    2005 - 2011
    Budapest University of Technology and Economics - Budapest, Hungary

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