Over the 14+ years of my software development career, I have worn many hats. I have worked with "front-end" javascript, created "back-end" services, developed mobile applications, deployed and organized Continuous Integration systems, and drilled deep down into windows installer to improve product deployment. The wide range of software specialties under my belt have helped me identify cross disciplinary patterns and have given me a broader understanding of the software engineering process.

Website: https://codeofserge.com
Phone: (203) 513-9289
Email: sergei.golos@gmail.com
GitHub: https://github.com/SergeiGolos
Stack Overflow: https://stackoverflow.com/users/190188/sergei-golos

Work Experience

Change Healthcare2017 - Present

Sr. Software Engineer (Product Team)

As a software engineer on the product development team, my responsibilities include development of new workflows and features, bug fixes, and guiding the product team towards cleaner and simpler product delivery.

  • Validated system integration modules against new versions of peripheral software products. In the process developed additional adapters to bridge version incompatibilities.
  • Resolved long standing services issues with updates for service packs, finally allowing a single service pack to upgrade any old version of our product.
  • Proposed and implemented improvements to the development, building and deployment of hotfix packages, streamlining the process from a complicated four-part configuration process into a single "source of truth" layout file.
  • Worked as an intermediary between the production team and my old services team to create smoother product handoff with fewer breaking changes for process developed by services team.

McKesson / Change Healthcare2011 - 2017

Sr. Software Engineer (Services Team)

As a software engineer on a service delivery team, my responsibilities included implementation of special application requirements, packaging custom configuration, and general oversight of tech-related issues for each of our clients. As the senior engineer on the team, I was also responsible for setting the strategy for the team to solve less trivial problems.

  • Developed a deployment strategy for customer-centric product overrides. Abstracted the complexity of WIX installer MSI behind a business problem-oriented Domain Specific Language (DSL). Automated the build process, leading to reduced build times and decreased user packaging errors.
  • Oversaw design on several in-house, web-based software tools. In the process, reduced duplication efforts between tools by extracting core shared elements into a supporting McKesson-branded UX framework.
  • Took charge of developer growth effort with regular "brown bag" sessions and knowledge transfer on different topics of interest.

Korchek Technologies2007 - 2011

Software Engineer

Worked on a small development team as a .NET C# developer. Under the guidance of an excellent the Sr. Engineer, gained a finer appreciation for simple solution design and elegant code.

  • Worked on development of new products, including CareChek 2 & 3 and Korchek Report System.
  • Pioneered a new web based product, Web Unit Archive, which leveraged client side data binding frameworks to provide a thick client user experience in a web browser.
  • Worked on data conversion and automation scripts. Created conversion mappers for legacy binary data in efforts to archive customer deprecated applications.

Cosential2006 - 2007

Software Engineer

As one of three developers in the company at the time, I had the opportunity to work in many differing capacities, which was a great learning experience for this early time in my career. Cosential was my first job on a strictly web based application and it was here that I was exposed to asynchronous javascript requests. Seeing the importance and impact of the technology, I became focused on AJAX and front-end engineering as an area of personal growth.

  • Learned and worked with ColdFusion to maintain and extend the Cosential CMS application.
  • Created PHP data sync connections for client's database systems in order to migrate them to our service.
  • Built custom websites for clients from designer image files with HTML, CSS and JavaScript.

Abbott Jewelry Systems2004 - 2006

Jr. Software Engineer

While still taking classes at college, I was lucky to play chess with the CTO of Abbott Jewelry Systems at a local coffee shop. When I won the match, he invited me for an interview at his company. My early PHP scripts were of questionable quality, but the time I spent working under this CTO led to considerable growth.

  • Was introduced to .NET programing with ASP.NET Web Forms and VB.NET desktop applications.
  • Worked with the Compact Framework version of .NET to build out and deliver inventory tracking software for Windows Mobile 5.
  • Created inventory syncing storefront websites for clients of AJSLLC Edge users.


  • Web Development Advanced

    • Javascript (ES5. ES6, TypeScript)
    • HTML / CSS / Bootstrap
    • Frontend MVC and MVVM
    • Angular & AngularJS
  • .NET Framework Proficient

    • C# / VB.NET / F# (beginner)
    • ASP.NET / NancyFX
    • WCF
    • .NET Core
  • Testing Proficient

    • Jasmine (JS) / Protractor
    • XUnit (.NET)
    • Fitness & SpecFlow
  • Build Tools Proficient

    • Windows Installer XML (WIX)
    • TeamCIty Server
    • NANT / PowerShell


  • English Native speaker

  • Russian Native speaker