Tamas Erdos, Full-stack Developer in Raleigh, NC, United States
Tamas Erdos

Full-stack Developer in Raleigh, NC, United States

Member since February 10, 2022
Tamas is a self-taught developer and business executive with 10+ years of experience working on tech solutions for various industries. Combining strong technical expertise with a comprehensive vision of the project, he approaches problems practically, emphasizing security, reliability, and a delightful customer experience. As a full-stack developer, Tamas is keen on building the entire solution, including the test suite, and providing additional product management and user experience inputs.
Tamas is now available for hire

Portfolio

  • Narvar
    Ruby on Rails (RoR), React, PostgreSQL, Google Cloud Platform (GCP), Ruby...
  • Gyomai Kner Nyomda
    Leadership, Strategy, Sales
  • Pickle Corp
    React, React Native, Ruby on Rails (RoR), Ruby on Rails API...

Experience

Location

Raleigh, NC, United States

Availability

Part-time

Preferred Environment

Linux, RubyMine, Vim Text Editor

The most amazing...

...experience I’ve built for Narvar was a payment API that had to be ready in one week and is used to process $10,000 in daily transactions.

Employment

  • Senior Software Engineer

    2020 - 2021
    Narvar
    • Acted as technical lead for Narvar zero-to-one projects, working with the design, product management, and operations teams to prioritize and deliver new features for three internal systems.
    • Engineered new capabilities and integrated seven carriers into the Shopify Returns product, using Ruby on Rails and React. This was responsible for over $1 million in daily refunds.
    • Created a Ruby on Rails API to enable the payment ledger and performed the Stripe integration with core Narvar services reaching tens of thousands of users daily.
    Technologies: Ruby on Rails (RoR), React, PostgreSQL, Google Cloud Platform (GCP), Ruby, Ruby on Rails API, Python, Jira, JavaScript, API Design
  • Chief Executive Officer

    2017 - 2019
    Gyomai Kner Nyomda
    • Led Gyomai Kner Nyomda, a subsidiary of ANY Security Printing PLC, founded in 1882 and responsible for printing 2.5 million books per year with a 20% market share.
    • Analyzed sales, finance, and operations. Crafted and executed a turnaround plan increasing the yearly profit by over 80%.
    • Designed and implemented a KPI-based bonus system for 135 employees, which reduced overtime work by 30%.
    • Introduced a new pricing strategy, increasing the peak month sales by 20% and reducing the overbooking by 90%.
    • Hired and trained my successor and continued to serve as a non-executive on Kner and ANY's boards.
    Technologies: Leadership, Strategy, Sales
  • Chief Technology Officer

    2016 - 2017
    Pickle Corp
    • Launched Snappatizer, an iOS app that enables users to discover the best nearby local dishes ranked higher by the Snappatizer’s proprietary algorithm. Used JavaScript, React Native, and Ruby on Rails.
    • Engineered and documented the JSON RESTful API with 15 methods, using Ruby on Rails and achieving a 98% test coverage.
    • Implemented the iOS app's business logic, including navigation, drag and drop, API consumption, and photo upload. Used JavaScript, React Native, and Redux.
    • Architected the product development process consisting of Agile, Kanban, and CI/CD practices. It led to same-day bug fixes and rapid responses to customer needs.
    • Acted as a product owner and wrote user stories to break down epics into manageable chunks.
    Technologies: React, React Native, Ruby on Rails (RoR), Ruby on Rails API, Product Management, Leadership, JavaScript, Heroku, PostgreSQL, AWS, API Design, Redux
  • Software Engineer

    2013 - 2016
    Stryker
    • Led the development of a key patient website, patients.stryker.com, achieving a 99.9% uptime for over 50,000 monthly visitors. Used Ruby on Rails, JavaScript, and React and implemented a test suite with 95% code coverage.
    • Managed a 5-people development team and the processes for creating patients.stryker.com. Delivered the project within the 3-month expected timeframe and under the $5 thousand established budget.
    • Architected the system's back end, including a surgeon locator, seminar manager, admin interface, and submission and approval queue. Used Ruby on Rails and saved the company $1 million.
    • Developed and documented the JSON RESTful API in Ruby on Rails to get surgeon information and enable the creation of personalized marketing brochures.
    Technologies: Ruby on Rails (RoR), React, CSS, HTML, JavaScript, jQuery, Product Management

Experience

  • Snappatizer

    I launched Snappatizer, an iOS application that helps people find food by ranking specific dishes. It helps answer the question: who’s got the best spaghetti carbonara nearby? The app was built in React Native and featured a Ruby on Rails API back end.

  • USPS Returns
    https://usps.narvar.com

    I led the development of a USPS return application for Narvar. The application enables small retailers who are USPS customers to manage returns. During the returns process, customers receive a shipping label. Retailers can manage all facets of the experience using a secure admin portal. The application was built using PostgreSQL, Ruby on Rails, and React for Narvar.

  • Stryker Surgeon Locator
    https://patients.stryker.com

    I led the development of the Stryker Surgeon Locator, a Ruby on Rails web application to help orthopedics patients find surgeons. It is used by thousands of people every day. I also acted as Product Manager for this project, working closely with a designer and a copywriter.

  • Narvar Payments Internal API

    I've handled this project development for Narvar as one of my first contributions to the company. It is a Ruby on Rails API used by several Narvar products to process payments from consumers. It has a full test suite and integrates with Narvar's internal APIs, processing tens of thousands of daily transactions.

Skills

  • Languages

    Ruby, JavaScript, CSS, HTML, SQL, Python, CoffeeScript
  • Frameworks

    Ruby on Rails (RoR), React Native, Tailwind CSS, Bootstrap, MUI (Material UI), Redux
  • Libraries/APIs

    React, Ruby on Rails API, REST APIs, jQuery
  • Paradigms

    Management, DevOps
  • Other

    Financial Analysis, Full-stack, Product Management, API Design, Quantitative Finance, Information Systems, OAuth, Leadership, Strategy, Sales, AWS, Material Design
  • Storage

    PostgreSQL, Database Administration (DBA)
  • Tools

    RubyMine, Vim Text Editor, RSpec, Jira
  • Platforms

    Linux, MacOS, Google Cloud Platform (GCP), Heroku

Education

  • Master's Degree in Business Administration (MBA)
    2008 - 2010
    NYU Stern School of Business - New York, USA
  • Bachelor's Degree in Business Administration
    2002 - 2006
    Babson College - Wellesley, Massachusetts, USA

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