Svet Angelov, Software Developer in Boulder, CO, United States
Svet Angelov

Software Developer in Boulder, CO, United States

Member since September 23, 2019
Svet may only have 3 years of experience but thanks to his enthusiasm and can-do attitude, he quickly excels in his career. He joined The Pro's Closet when they were only selling on eBay and buying a few bikes. Through a lot of innovation, creativity, and close work with the other teams, Svet, along with his team have created internal systems which save the company thousands of hours in labor, supporting growth trending at 60% year-over-year.
Svet is now available for hire




Boulder, CO, United States



Preferred Environment

MySQL Workbench, Git, VS Code, MacOS, Linux

The most amazing...

...thing I've created was an internal app that helps TPC's employees with their tasks, saving an estimated 2,000 man-hours annually in labor.


  • Software Architect

    2017 - PRESENT
    The Pro's Closet
    • Implemented a tool which auto-generates SKUs, customers, and POs from submission information (saves thousands of man hours for our purchasing team).
    • Launched, maintain and improve the website
    • Designed and launched a partner bike trading tool which allows customers to sell their bikes to TPC via a partner website (REI, Pivot Cycles, QBP, more to come).
    • Implemented a tool which allows customers to save the filters they are currently looking at in order to receive email updates when new products matching the criteria are added to the site.
    • Implemented a tool which auto uploads images from photographer computers to Channel Advisor.
    • Implemented a tool which uses machine learning in order to find sold bikes which are most like a given bike to save purchasers time in researching a product.
    • Deployed all of our services and apps in AWS.
    • Wrote scripts that collect data from all of our third-party systems in order to create reports and other internal tools.
    Technologies: Amazon Web Services (AWS), Python, AWS, Shopify, JavaScript, MySQL, React, Node.js
  • Senior Software Engineer

    2016 - 2017
    Fresenius Kabi
    • Switched authentication from IIS Windows authentication to Microsoft Identity which provided a lot more flexibility with logouts, timeouts and working with multiple tabs.
    • Implemented a driver from scratch for one of our legacy devices which uses ASTM protocol for communication, and cleverly made it read asynchronously from a TCP stream (not supported by .NET out of the box).
    • Greatly reduced resource consumption of our system by using asynchronous programming and caching.
    • Reduced the coupling between queues and messages when using RabbitMQ so the interface is a lot more reusable and friendly.
    • Implemented React into our MVC application in order to create complex charts more easily than with jQuery.
    Technologies: Model View Controller (MVC), ASP.NET, RabbitMQ, SQL, JavaScript, C#
  • Software Engineering Intern

    2015 - 2015
    Motorola Solutions
    • Created a Wireshark Dissector for Google's Protocol buffers.
    • Loaded shared libs at run-time to be able to swap Protobuf Messages dynamically (prevent recompiling).
    • Parsed config files to find resources at run-time (prevent recompiling).
    • Used preprocessor code in order to make the dissector compatible with Win and Linux under one source.
    • Wrote installation scripts in Python.
    Technologies: Python, C++, C


  • Drivetrain

    Drivetrain is an internal system used by The Pro's Closet to improve operational efficiency, control workflows and collect operational data. It provides the rails for the whole lifetime of an inventory item.

    It starts with purchasing it from a customer via online submission, giving our purchasers the ability to make offers, see history, generate shipping labels and complete a submission upon arrival, automatically generating a SKU, a vendor and a PO for that purchase.

    It also provides the operations department with an interface for the inspecting mechanics to evaluate the condition of a bicycle, the servicing mechanics with a screen to service it based on the inspection, the photo department with the ability to automatically upload photos, and it helps the posting department by automatically injecting known data and notes into the catalog. Meanwhile, it creates events for every touch-point, allowing us to create reports and dashboards.

    Drivetrain also helps our accounting department by showing which POs need to be paid, and gives the option for bulk payouts. I designed and developed Drivetrain from scratch along with the help of my co-worker who is the front-end developer.

  • The Pro's Closet

    The Pro's Closet's website is in Shopify's ecosystem but we have customized it a great amount. For example, it has custom collection pages that load products from our servers increasing loading speed, allowing for filtering by multiple filters in a category (e.g. size small or medium) as well as filtering by price. We also implemented the ability to save a search. It allows a customer who has used a filter set and not found the bike he is looking for, to save his search and receive daily emails with products matching the criteria. This helps customers find their dream bicycle but it also helps the purchasing department identify what bikes customers are looking for.

    Additionally, we have built a custom page for the customer to submit their bikes and thanks to the automation provided by Drivetrain, our internal system, a few buyers are able to process around 1,000 submissions per week.

    Lastly, the account page provides customers with the ability to check the status of their submissions, and accept or decline their offers. Also, CPO customers can see their bike's buy-back value and start the submission process.

    My role was to collect, store and retrieve the data needed for these processes, as well as to write the REST API.

  • Apheresis Portal

    The Apheresis portal is a system for communicating with aphaeresis medical devices. It collects procedure data from devices, providing filterable reports and dashboards, giving hospital staff the ability to see performance metrics and drill down by ward, operator, and device.

    The system establishes 2-way communication with devices in order to monitors live data about currently running procedures and to send patient's data to devices to get them set up for a new procedure.

    It also sends webhooks to subscribed servers/listeners when events happen, allowing hospitals to subscribe to their own internal systems.

    The portal was broken down into sections, with roles and permissions allowing different users access to resources based on their privileges. I started with Fresenius in the middle of the project lifecycle but found many opportunities for improvement such as using asynchronous programming in order to reduce resources and improve performance, add local and AD authentication, and even wrote a driver to support one of the legacy devices. I came up with a clever way to communicate with the device increasing the possible concurrent connections from 10 (on the old system) to a few thousand.


  • Languages

    JavaScript, SQL, C#, Python, C++, C, Java
  • Libraries/APIs

    Node.js, React, Log4Net
  • Paradigms

    Asynchronous Programming, Agile, Model View Controller (MVC)
  • Other

    Front-end Development, OOP Designs, MVC Frameworks, AWS
  • Frameworks

    Express.js, ASP.NET
  • Tools

    AWS EBS, Git, Logging, VS Code, MySQL Workbench, RabbitMQ
  • Platforms

    Linux, MacOS, Shopify, Amazon Web Services (AWS)
  • Storage

    AWS S3, MySQL


  • Bachelor's Degree in Computer Science
    2012 - 2016
    University Of Illinois - Chicago - Chicago, IL

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