Sajjad Rad

Work Experience

• MANA SKY

  December 2015 Until now

  Co-founder, Software Engineer

  ● Provide web/mobile app development solutions
  ● Designed and developed a website for Ministry of Science, Research and Technology of Iran

• Atbox

  July 2013 Until now

  Co-founder, Product Manager, Developer

  ● Developed Atbox.io since prototype and now it serves more than 100k happy users worldwide.
  ● Responsible for product backend & maintenance, engineering, API design, and day-to-day improvements.
  ● Provided marketing solutions for user base growth and customer satisfaction that resulted in significant revenue.

• Twist

  September 2019 to September 2021

  Software Engineer

  ● Involved in the design & implementation of microservices & APIs for an online Game service API platform using Golang, Kafka as broker, Redis as cache, gRPC, docker, MySQL & protobuf.
  ● Involved in design, documentation & development of 6 microservices using Golang:
  - AuthN & AuthZ users using JWT token
  - Deliver messages on driver-supported channels (like email & notification) to the end-user
  - Manage & schedule game tournaments
  - Query users scores as the leaderboard
  - Manage game & users achievements
  - Manage users' inventory & store items, handle purchase pipeline (except payment process), & invoice system.
  ● Developed the Golang & PHP SDKs to use in the games to interact with the platform API.
  ● Developed the front-store app using Laravel
  ● Implemented the end-user event channel (like balance update) using Websocket.
  ● Implemented the Admin Panel for the whole services using Laravel.
  ● Worked on an app to manage all microservices in the admin using k8s APIs(not implemented)

• Mark It As Done

  January 2017 to February 2019

  Remote Web Developer

  Developed an application using Laravel, MySQL, Redis as queue & deployed on AWS for a private company to:
  ● Send digital content of sold products on the store (like digital music albums of physical version) using Shopify API via email
  ● Manage & deliver digital products sold on Shopify or local stores via email (like game CD-KEYs)
  ● Manage digital contents download (hosted on AWS with restrictions & expiration)
  ● Manage & track inventory products from different stores supporting "inventory checking" process (online Shopify stores & local stores)
  ● Export Sales & marketing reports to online charts, CSV, PDF & excel files (aggregation from all stores)

• NIG Studio

  June 2015 to December 2015

  Technical Team Lead

  I was responsible for:
  ● Managing the technical team
  ● Designing & engineering software for the clients

• NIG Studio

  June 2012 to June 2015

  Web Developer, Game Developer

  ● Worked on an FPS 3D game (Jungle Warrior):
  - Level Designing all 5 levels of the game using Unreal Engine
  - Directed & edited the cutscene videos & the game trailers
  - Designed & developed the game main menu using Adobe Flash & Actionscript
  - Sound programming using C#
  
  ● Worked on the core of an online strategic game using PHP
  ● Designed & developed the company website template using WordPress, HTML & CSS
  ● Developed a web mini-game for the company home page
  ● Developed a mobile application for the game media industry to review Android games

• Self-employment

  May 2009 to June 2012

  Freelancer

  ● Designed database & developed a windows application using C#, SQL Server, SQLite for real estate management (+2000 users) (our team contains two developers).
  ● Designed database & developed an accounting windows application for a company in the print industry using C# & SQL Server