Benjamin Koloski, Developer in Orlando, United States
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Benjamin Koloski

Verified Expert  in Engineering

Full-stack Developer

Orlando, United States
Toptal Member Since
November 2, 2022

Benjamin is a full-stack software engineer experienced in front-end and model-view-controller (MVC) web frameworks, relational database management systems, NoSQL, and AWS. He is also keen on working as an architect of enterprise applications and software and cloud solutions. Benjamin enjoys approaching complex technical challenges from multiple points of view, with insight and expertise spanning a wide range of technologies and paradigms to create robust, exemplary, reusable solutions.



Preferred Environment

MacOS, Linux, Amazon Web Services (AWS), Azure

The most amazing... I've developed helped case managers guide underserved patients in qualifying for programs that require complex surveys with intermittent connectivity.

Work Experience

Full-stack Engineer

2019 - 2021
  • Collaborated with five colleagues in a small Scrum team, taking over a failing customer project with complex technical requirements, such as offline-first and PWA, and working hard to complete it successfully.
  • Contributed to the modernization of the legacy Java care management codebase to the new Ruby on Rails platform.
  • Coached two new junior developers who were later able to generate a strong business impact in the company.
Technologies: Java, Ruby, TypeScript, Vue, PostgreSQL

Full-stack Developer

2017 - 2021
TrueNorth Technology Solutions, Inc.
  • Designed, coded, and tested core features of a company's flagship product, an application platform as a service (aPaaS).
  • Used advanced metaprogramming techniques to enable platform extensibility and flexibility.
  • Contributed to customer projects on eCommerce, logistics, and healthcare using the abovementioned platform.
Technologies: JavaScript, JavaScript Testing, Ruby, Ruby on Rails API, PostgreSQL, Java, Ext JS, jQuery, Bootstrap, CSS, HTML, Git

Compass Agile Enterprise

An extensible, rapid-development application platform as a service (aPaas) based on the Universal Data Models authored by Len Silverston, including a rules engine, workflow builder, CMS, and CRM.

I worked on this project as a back-end developer and primarily contributed to the commerce and WebRTC functionality.


JavaScript Testing, Git


JavaScript, Ruby, CSS, HTML, Java, TypeScript


Bootstrap, Ext JS


Ruby on Rails API, jQuery, Vue


MacOS, Linux, Amazon Web Services (AWS), Azure