Dan Sadaka

MarketFuel provides a platform for Marketing Agencies to manage sales of promotional products to their customers. Agency customers include Apple, T-Mobile, McDonalds and many others.

My task to date is adding Avalara sales tax integration to MarketFuel's e-commerce site.

Technologies : Ruby on Rails 7.2, Ruby 3.3.x, PostgreSQL, React, AWS EC2, Postman

• Project Name : MTU (Multi-Tenant Units)
• Purpose : Enhance WiFi Management Site
• Technology : Ruby on Rails 7.1, Ruby 3.x, PostgreSQL, Javascript variables, Stimulus, AWS EC2, SecretsManager, Lambda, Cloudwatch, Cognito, Apartment, Postman, Kubernetes
• URL : https://homewifi.network, https://nomadix.com
• Nomadix provides Wi-Fi equipment to Apartments, Hotels, Schools, etc
• The wifi.nomadix.net site allows service providers (e.g Dish Network) to provision properties, resident service administrators to provision subscribers and subscribers to manage their own profiles (e.g Passwords, profile info)
• My first contribution here was to add multi-tenancy. Previously, it was necessary to set up separate EC2 instances for each service provider
• Now they can support multiple providers (tenants) on the same cluster while also offering each a white label site with custom styles and logos using Javascript variables
• Later I interfaced with DISH networks via their SOAP specification and tightened security through the use of AWS Secrets Manager
• Recent work involved working with the DevOps team to migrate from single instances to Kubernetes clusters
• Also implementing SSO for a stack with multiple subdomains using Omniauth and OpenID Connect to authenticate with a Doorkeeper system.

• Project Name : NPM
• Purpose : Develop a Marketplace for Buyers and Sellers of Private Securities
• Technology : Ruby on Rails 5.2, PostgreSQL, CoffeeScript, Gitlab, Kubernetes, ElasticSearch, Stimulus
• At NASDAQ PM I worked with an excellent team to enhance their In-house Private Market system into a complete, customer-facing marketplace for private company stock.
• It is now live and all the major brokerage firms and banks are processing millions of dollars of transactions daily
• The team was well organized and enforced best practices: Test coverage, Code Reviews, QA, etc
• My work was an even mix of front-end and back-end coding
• My first year I took them from Rails 4.2 to 5.2
• Later, I developed many new functionalities: Negotiations, beneficial ownership, enhanced auditing, batch uploading, and many others.

• Project Name : Orion
• Purpose : Develop supporting tools and procedures for internal development projects
• Technology : Ruby on Rails 6.0, Ruby 2.6.x, Postgres, Spinnaker, Jenkins, etc

Project Name : Image Options - IOEngage
Purpose : Bring partially deployed Image Management System to production on AWS for Prepress Printing Company

Technology : Ruby on Rails 5.06, Ruby 2.4.3, React, Postgres, Docker Containers, Kubernetes, Jenkins, AWS
URL : http://imageoptions.net

Smartek21 is a provider of technology solutions. Their client, Image Options, is a leader in the printing, surface imaging, display and visual communications industry. Image Options had been running an in-house system to aid their customers throughout the entire process from initial conception to production of printed graphic images. We, the Smartek21 team came in to save a failed attempt to move the system to the AWS cloud.

We were thrust into a fire pit—an already live system that was incomplete and untested—and under enormous pressure due to the hard deadlines inherent in inputting on large expos. Upon arrival, I immediately began optimizing the infrastructure the previous tech team built.

Moving their databases to AWS RDS for example, not only improved performance and reliability, but also saved them from near catastrophe after a malicious hacker brought down their entire Kubernetes cluster.

Later we improved the user experience dramatically by replacing the legacy rails table with a React Grid updated in real time with ActionCable. Previously, users did not immediately see changes made by other users and redrawing the screen was much slower.

My responsibilities included managing a team spread out from India, Ukraine, Miami and California. Morning tech meetings with the Indian team, code reviews, and client standups were followed by the delivery of daily code deployments.

• Sell and deliver ebooks and Print books to libraries
• Technology : Ruby on Rails 3, Amazon EC2, SOLR
• URL(s) : http://esebco.com and http://library.esebco.com
• Summary: This project represents a wildly successful attempt to put a print-only distributor of library books into the ebook business
• SEBCO is now the envy of their competitors and even have recruited many top salespeople away from them
• The sales site is at esebco.com
• Click "VIEW E-BOOK SAMPLES" to view the library site
• Teachers use this site for classroom lessons eliminating possible unavailability of books
• For a testimonial of the impact this site has made c.f Https://www.datakey.cc/custom-ecommerce
• Details:
• This project is two sites in one
• It is owned by SEBCO Books, Inc. a well-established seller of books to libraries
• Early in 2011, they came to us with the realization that printed books were quickly relinquishing “shelf-space” to eBooks
• Moreover, their largest competitor was already making strides to corner the new market
• They wanted to enter the market by selling Interactive and Flip books
• The designs were done in May, we received the XHTML at the end of June, and by the end of August, esebco.com, the sales site, was live
• This first site, with its clean, fast, appealing look—combined with the powerful SOLR-based search engine, helped their nationwide sales force sell these freshly flipped books to their existing customer base
• Within a month the second site, library.esebco.com, was up for students and library patrons to search, select and read these books online
• Excitement spread quickly as customers took to the new site right away
• Though sales trickled in at first, within 3 months they were making 5-digit sales
• It seems school librarians like the idea of buying books that instantly appear on their shelves with no effort; no shipping costs, no unboxing, no labeling, no finding shelf space and best of all. The books are always available to all patrons simultaneously
• Teachers now give class lessons saying, “Class please take out your tablets and go to page 10 of this URL.”
• We have now combined SEBCO’s traditional Print book site with the ebook site making a single sebcobooks.com
• This site now runs on an Amazon ELB/EC2 cluster, Dedicated SOLR and Memcache server, Background job servers (resque and sidekiq) and RDS-based MySQL
• The latest enhancement to the site is really a bit magical. It gives SEBCO Books the ability to sell any published book, whether they have it in their catalog or not. As a user searches for a book, Ajax calls to the backend search populate a dropdown of suggested matches. If the local SEBCO catalog produces no results, the search is sent to a web service that provides an API to a database of all published works. Parallel sidekiq processes are fired off immediately to add any matching titles. When the page draws, it appears as though the books were there all along!
• I Managed Outsourced Tasks: UI, Graphics/Flash Designer, Conversion of PSD to CSS, Initial SOLR search
• I Managed the team of RoR programmers
• Setup Developer workstations on OS X and Ubuntu using RubyMine IDE
• I Coded roughly a third of the RoR and jQuery code personally
• Technologies used: Rails 3.2.22, Amazon EC2, S3, Route53, ELB, Paypal Website Standard, Ruby 2.22, Apache Git, SOLR/Sunspot, Passenger, Rubber/Capistrano, MySQL, CSS3, Javascript, jQuery, Redis, Resque and Sidekiq and Memcached
• Most recently, migrated from MySQL to Aurora PostgreSQL database

• Purpose : Cloud-Based EMR System for Substance Abuse Facilities and Testing Labs
• Technology : Ruby on Rails 4.2, Heroku Rails 4.2, Amazon S3, RabbitMQ Messaging, HAML, SCSS, CSS3, jQuery
• Javascript, Cucumber, Rspec, PageObject, Selenium, Git, PostgresSQL, Sneakers, Whisper, SideKiq
• URL(s) : http://kipusystems.com
• Kipu Records is an EMR System developed for the substance abuse industry
• My first project was a new sophisticated interface between Kipu clients and the labs that conduct their (drug) tests
• My task involved writing a “black box” testing system that plays the role of the client and lab
• Test requisitions are submitted and lab results are simulated via RabbitMQ, WebSockets, etc
• All output of the system is compared with control data in JSON and HL7 formats
• Later, I worked on automation tests using Cucumber, Watir, PageObject and Selenium
• Most recently I incorporated Barcode label printing into their cloud based platform by developing a Javascript
• Component wrapper for the Dymo Label Printer web service.

• Artistic Ribbon has been in the ribbons and bows business since 1928. They sell Ribbons, Bows and Artificial Flowers Wholesale and Retail
• Technology : Spree eCommerce, Ruby on Rails 4.2, Apache SOLR
• URL(s) : http://www.artisticribbon.com (went live 4/15/15)
• Their existing website was aging and had not been updated with the latest SEO policies
• Furthermore, all pages of the site were static HTML
• Any changes to product information were done manually
• A third-party shopping cart site was also updated separately with item numbering different from the back- office ERP system!
• This project went live on 4/15/15 and took nearly a year to develop—mostly data cleanup
• All data now resides in a single place
• No more duplicate efforts
• Product changes in the back-office ERP appear immediately on the website while web-based orders are imported directly from the website
• As the Project Manager, I managed all outsourced Tasks: UI, Graphics/Flash Designer, Slicing
• When I put on my Developer hat, I normalized the entire Inventory database, and selected Spree for the eCommerce framework
• Technologies used: Rails 4.2, Azure, Amazon S3, Spree eCommerce, Ruby 2.1.5, Nginx, Git, SOLR Search with Sunspot gem, Capistrano 3, MS-SQL, MySQL, HAML, SCSS, CSS3, JavaScript, jQuery, WordPress, Authorize.net

• Provides a database of census and IRS data on a subscription basis
• I Wrote automated Browser tests using Cucumber, RSPEC and Watir
• Automated Client-Based report generation using Capybara, Selenium, Poltergeist and PhantomJS.

• Purpose : Large, consumer photo-sharing and Cloud Storage site
• Technology : Ruby on Rails
• URL : snapmylife.com, snapone.com
• SnapOne.com provided Cloud Services on the web with a unique Family approach
• It was a large site, spread across seven Amazon EC2 instances
• There were three Services: SnapSync (Syncs local devices to Cloud), SnapSecure – Mobile phone management, SnapMyLife: Photo Sharing
• Managed and delivered three large features of the site – EXIF information, All Social Media Connections, and Group Collections (Albums)
• Heavy workload of Ruby on Rails 2.x and 3.1 with extensive work in Javascript and jQuery
• Upgraded form Ruby 1.8.7 to 1.9.3p429; upgraded Rails from 2.x to 3.2.13
• Developed back end video transcoding process
• Technologies used: Rails 3.1 – 3.2, Amazon EC2 & S3, Rubber deployment, Ffmpeg, Ruby 1.87 – 1.93, Apache Git, REDIS, Sphinx, Resque, Passenger, Capistrano, MySQL, HAML, CSS3, Javascript,, jQuery, RubyMine IDE, Backbone & Underscore jQuery libraries

• DiY Loan Modification Site
• Technology : Ruby on Rails
• This was a Do it Yourself Loan Modification site that was designed to affordably help home owners fend off foreclosure
• We started out presenting questions that allowed us to calculate eligibility for the Obama Making Homes Affordable act
• We supported the major lenders and stored their actual forms, in form-fillable PDFs
• The entry screens were HTML to give us more control
• Users filled in these forms, the data was stored in MySQL and later used to populate an entire application package that would then be sent to the user to present to their lender
• Managed Outsourced Tasks: UI, Graphics/Flash Designer, Conversion of PSD to CSS, some Javascript
• Managed In-House Tasks: Managed team of RoR programmers, Setup Paypal and SSL
• Setup SuSE Linux (virtual) server
• Installed Apache, Subversion, Passenger, Capistrano
• Selected Programmer workstation tools (Collabnet, InstantRails)
• Wrote most of the RoR code personally
• Technologies used: Rails 2.3.2, SuSE Linux Enterprise 11, Paypal Website Standard, Ruby 1.8.6/7, Apache 2
• Subversion, iText – PDF Handling, Passenger, Capistrano, Rjb - Ruby Java Bridge, MySQL jQuery, CSS3
• Javascript

• Online Food Takeout
• Technology : Ruby on Rails
• Pinkcart was an online takeout ordering system for local restaurants
• (Predecessor to GrubHub) It takes customer orders and payments, orders print automatically in the restaurant and a confirmation is sent to the customer
• It employs drag-and-drop and Ajax technologies for filling the cart—even on the iPad! It was developed as an extension to the RoR based Spree eCommerce system
• Managed all interaction with the client from obtaining initial objectives through development and delivery
• Managed team of RoR programmers
• Setup SuSE Linux (virtual) server (Rails 3.0.3, Ruby 1.9.2)
• Installed Apache, Subversion, Passenger, Capistrano
• Technologies used: Rails 3.0.3, SuSE Linux Enterprise 11, Paypal Website Standard, Ruby 1.9.2, Apache 2
• Subversion, Paperclip, Passenger, Capistrano, jQuery, UJS, MySQL, ImageMagick

• Website One, Inc
• Started as a hosting company in 1995
• Now we provide subscriptions to managed services (e.g Online backup, VOIP)
• Our premier offering is a nationwide Spam/Virus/Phishing filter service called PristineEmail (www.pristineemail.com)
• We also provide stellar customer service, including technical phone support, which makes us a great fit for the SMB market, where internal IT staff is unaffordable.

• Project : Veteran Government Partner
• Purpose : Site for annual VGP Conference
• Technology : Ruby on Rails
• URL : www.vetgovpartner.com
• VetGovPartner (VGP) is a fully integrated web application designed to facilitate matchmaking, partnering and networking among attendees before, during and after a Conference or Event
• The application was built and updated for both the 2011 and 2012 National Veteran Small Business Conferences
• VGP is the emerging social networking portal for VA events and conferences for small and veteran-owned businesses
• Using VGP, attendees are able to:
• Assisted team to deliver site within a remarkably short amount of time
• Technologies used: Rails 3.2.3, Cancan, Postgres, Typus (admin), Dalli (memcached gem), Mailcatcher
• Sunspot/SOLR, Minitest, Git

• At Coca-Cola, I developed software in RM/COBOL to provide statistical results for the Sensory Analysis department
• I also developed scheduling software for the same department
• These programs were in use at Coca-Cola for over 10 years.