Mikalai Okun

Summary

The Client requested to create a customer portal for their users, this should be Master-Slave API integration with client database. Users in Customers portal should be able to access their profiles, billing with invoices, services and be able to add fund to the account. Customer portal should enable easy support. All payment needs to be handled by Moneris API and send payment reference and amount to the API. We also responsible to create an e-Commerce with custom workflow and conditions to support business and advertisement logic of the client company.

Challenges

Import Legacy customers Connection to a new API and Sync accounts. e-Commerce workflow contains many conditions which over complicates testing.

Results

Developed an application with customer portal, synchronized accounts and Moneris payment processing. User now able create a new account in API after placing and paying for the order.

Technologies

Symfony 3 PHP framework, jQuery, Composer, Bower.

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• Client: Ice Wireless
• Date: April 2018
• Service: Web Development

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Summary

Company start working on custom CMS for First Capital Realty with list of very specific and complex requirements. CMS must support multiple languages, content version control and document publishing workflow. Only users with specific access will be able to access, manage and approve content change. Every action should logged in kept for 7+ years. All Front-end pages should work as a system of widgets created from custom page builder. The website should be able to connect and work with StockWatch API, MailChimp API and CatsOne API.

Challenges

Implementing robust CMS with pages build of numerous of widgets very slows down page load speed, we have to implement powerful and intelligent caching. Workflow should changed depends on user permissions Email correspondence must depends on user roles. Proper Stock pricing should be stored as historical data. Charts should rendered including many conditions and filters. Similar to Yahoo Finance. Job listings should be synced with Cron-jobs.

Results

Deployed CMS with custom workflow and content revisioning. Implemented strong page caching, added functional and unit testing. Created Deployed script for easy and non-interruptible deployments.

Technologies

Symfony 3 PHP framework, jQuery, ReactJS, Composer, Bower.

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• Client: First Capital Realty
• Date: May 2016 - Nov 2017
• Service: Web Development

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Summary

The Client requested custom website to synchronize 120k+ real estate properties pulled from two feed by RETS. One - Canadian Real Estate Board (CREA) and another Toronto Real Estate Board (TREB). New applications should process new and existing properties with specific time schedule to update, remove and add property information and gallery. Sync script should avoid all duplicated, enable simple search by MLS, property geo data and street address. Entire website should be filtered by geo data, like: “province”, “province->city”, “province->city->neighborhood”. This website also should has an API to allow other website to get listing.

Challenges

Install robust server to handle many requests. Synchronize database with feeds and make sure no duplicates added, as there is not unique field for both feeds. Find missing Geo data, such as neighborhood, city and province for property. Implement custom caching for search. Implement API to support external connection protected with token. After pulling all properties we found that many of them don’t have proper geo-information and makes our site helpless to properly display data, was decided to purchase third party database with deo data and created custom feature to look-up property geo by postal code.

Results

Developed a web application with custom feed parser. Mapped properties schema to a local database. Created various cron-job scripts to start syncing. Implemented API and created Wordpress plugin to display and search properties.

Technologies

Symfony 3 PHP framework, jQuery, Composer, Bower.

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• Client: Homenest
• Date: April 2018
• Service: Web Development

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Summary

The Client requested to develop a system for restaurant/night club booking. New application should allow users to see venue availability for certain date or an event, as well as book entire place. The system should handle option for regular party and for a big party with credit card deposit. The application will be able to manage registrations and send emails.

Challenges

Integration with NightPro API for events registration. Custom floor layout builder with different types of tables and table capacity. Table combination for big party. Abandoned forms follow-up.

Results

Reservation system was embedded into existing website as a module allowing customers chose seats and check availability and layouts got reservations with custom work hours. All form submissions were stored allowing managers to follow up with left inquiries. Implemented Stripe API to card processing.

Technologies

Codeigniter 3 PHP framework was chosen as a code system with secure folder structure, JavaScript plugins and native code handles all front-end features and Ajax requests, Composer helped to control libraries and their versions. Deployed script created to easy deployments, Stripe API.

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• Client: &Company Restaurant
• Service: Web Development

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Summary

I was in charge of developing application architecture and API synchronization for Global Furniture Group corporate website. The Client requested custom Content Management System (CMS) with product catalogue and “build-it” product rendering feature. CMS modules should work with huge amount of data. Managers should be able navigate and sort materials, the system must support multiple languages.

Challenges

Create custom CMS with easy navigation covering all areas of complex product catalogue. Listing should be sortable. Integration with AS400 remote database to update product pricing and local database. Create rendering AutoCad server on Amazon Clouds to generate images based on selected product options on the fly.

Results

CMS was developed and deployed successfully on time, added complex users permissions and allowed users to manage content according to their access. Customers was able to choose products options, such as fabric, finishes etc. to render product picture on the fly and in 3 positions, so we can rotate the image in 360 degrees.

Technologies

Codeigniter 3 PHP framework was chosen as a code system, JavaScript plugins and native code handles all front-end features and Ajax requests. Amazon cloud servers and AutoCad to render pictures from raw files.

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• Client: Techs Soft
• Date: April 2018
• Service: Web Development

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Summary

Printing company was in need of online tool for their clients to design and re-user templates of brochures and business cards which should has simple user interface and allow to convert approved materials ready to print material. The system and templates must support English and French.

Challenges

While developing we faced following challenges: Creating business card or Brochure was implemented in web-browser, which means all drag-and-drop and layout-elements customizations should work with variety of browsers, including outdated IE8, which used by many corporate clients. All tools for online editor should support French, when size of words maybe longer than English variant. I was have to create automatic layout adjustment to prevent breaking of layout and support word groups. Colours on the online tool should must match existing pantone collection, as well as available fonts. Exporting material to a PDF file should mind all printing requirements, such bleedings and other details which important for printing process.

Results

Implemented custom web-application with customer portal. Users was able to create business card or brochures on their choice. Access to existing materials to manage templates if has a proper access. Printing materials was stored in database and element rendered by relative coordinates scaled according design on a working sheet. Any materials can exported as separately as in well as in bulk. Ready element can be send by email for approval for pronting where staff will process this as an order.

Technologies

The core was implemented on custom PHP framework user by a company and main development platform. Database stored in MySQL. Front-End was created by using custom JavaScript framework designed specifically for this project as well as jQuery for basic functionality. Exporting documents to PDF files was integrated with PDFLib library.

• Client: HumeIntermedia
• Service: Web Development

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Summary

Baranovichi State University requested to develop custom web application to allow students pass exams. New system should work with existing tests files in proprietary format. New tester application will have to support single and multiple types of questions such as text entry, select, compare text to text or text to image, ordering answers, formulas in LATEX format. This application must calculate scores based on weight of questions and answer coefficients. Students will be able to pass a test as an examination and as a preparation. Examination will not show correct answers, only total scored will be displayed. Preparation will display correct answers and allow user to skip and come back to questions. All results will be stored in external database accessible within local network.

Challenges

I faced multiple challenges for this project: Desired application should be able to convert existing test files Creating test files now should be intuitive and easy, allowing bulk changes for users with minimal computer knowledge. Gathering answers and calculating score for multiple type of questions should follow scientific formula.

Results

Created custom Microsoft Word Macros to allow conversion existing test files in proper format. Implemented full requirements list. Application launching by networking software in Chromium browser and transferring examination results to a local database.

Technologies

Macros application was written on Visual Basic as internal MS Word application. The core was based on custom PHP framework and JavaScript with jQuery. User’s answers stored in Browser Local Storage. Was implemented custom JavaScript framework to work with list of functions.

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• Client: Baranovichi State University
• Service: Web Development

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