Malik is available for hire

Malik Baktiyarov

Verified Expert in Engineering

Spree Commerce Developer

Location

Almaty, Almaty Region, Kazakhstan

Toptal Member Since

September 11, 2017

Malik is an experienced full-stack software developer specializing in Ruby/Ruby on Rails. Primarily focusing on microservices, RESTful APIs, and implementing the business logic of specific business domains, he has a broad vision of the best and industry-standard engineering practices and paradigms. Malik effectively collaborates with people in PM, design, QA, and DevOps. He can be a code owner of features and projects, capable of planning a tech roadmap.

Spree Commerce Ruby Ruby on Rails (RoR)RSpec MySQL Test-driven Development (TDD)PostgreSQL Microservices Amazon Web Services (AWS)Elasticsearch Redis React Rapid Prototyping Linux Bootstrap

Portfolio

Docyt

TypeScript, Ruby on Rails (RoR), PostgreSQL, QuickBooks API, ChatGPT...

JiffyShirts.com

Ruby on Rails (RoR), JavaScript, PostgreSQL, Vue, Elasticsearch, Spree Commerce...

Chloe + Isabel

Ruby, Ruby on Rails (RoR), React, MySQL, Agile Software Development, Heroku...

Experience

Ruby - 14 years Ruby on Rails (RoR) - 13 years MySQL - 9 years PostgreSQL - 8 years Spree Commerce - 7 years Amazon Web Services (AWS) - 7 years TypeScript - 3 years React - 3 years

Availability

Part-time

Preferred Environment

Ruby on Rails (RoR), Amazon Web Services (AWS), Git, Slack, MacOS, MySQL, PostgreSQL, TypeScript, Scrum

The most amazing...

...thing I've built is a very high-performant logging aggregation service with thousands of requests processed per minute.

Work Experience

Senior Full-stack Developer

2022 - 2023

Docyt

Developed the reconciliation service that helps accountants to reconcile the months for accounts of their customers.
Improved some development and management processes based on my experience from past employments.
Participated in transitioning the front-end codebase from Backbone/CoffeeScript to React/TypeScript.
Utilized ChatGPT API in different parts of the functionality.

Technologies: TypeScript, Ruby on Rails (RoR), PostgreSQL, QuickBooks API, ChatGPT, WebSockets, Elasticsearch

Senior Full-stack Developer

2019 - 2022

JiffyShirts.com

Utilized and extended a features of Spree/Solidus as a core engine, and used Sidekiq background jobs to process the internal business logic.
Prepared a conversion of the codebase to the major Rails upgrade, which required some intensive work on catching and fixing the occurring bugs.
Created a functionality for apparel decorators to provide added value for wholesale orders (T-shirts and other clothing).
Improved the internal business logic, resulting in some optimizations.

Technologies: Ruby on Rails (RoR), JavaScript, PostgreSQL, Vue, Elasticsearch, Spree Commerce, Solidus, Sidekiq

Senior Full-stack Engineer

2017 - 2018

Chloe + Isabel

Optimized the performance of some GraphQL endpoints for the queries from the React front end.
Worked with multiple 3rd-party integrations and APIs (payment and accounting, logistics).
Utilized the Spree eCommerce Core as a base back-end engine and extended its features.

Technologies: Ruby, Ruby on Rails (RoR), React, MySQL, Agile Software Development, Heroku, Memcached, Redis, GraphQL, Spree Commerce

Consultant Software Developer

2016 - 2017

Vital Media Network

Created an internal metrics tracking system similar to the Google Analytics UA tracker.
Aggregated metrics into a flat MySQL table and created a batch export tool for Bigtable.
Gave the specific recommendations to improve the Speed Index.

Technologies: Ruby on Rails (RoR), Ruby, Google BigQuery, Google Cloud Platform (GCP), Data Mining

Senior Software Developer

2015 - 2017

NativeGrid/Setka

Maintained and scaled the core of a content management system (CMS/CMF) using Ruby on Rails.
Converted a massive monolithic codebase to the structured Rails engines and dependencies, which allowed to bootstrap five new projects on the same core codebase.
Kept the group of different websites operable with millions of unique visitors per month.

Technologies: Ruby on Rails (RoR), MySQL

Senior Software Developer

2014 - 2015

ImproveMedia

Stabilized the buggy and abandoned RoR codebase as the new lead back-end developer.
Migrated the old database and data to Spree eCommerce engine tables.
Fixed multiple performance and scaling issues and worked intensively with the front-end developer to improve the Speed Index.

Technologies: Ruby on Rails (RoR), Spree Commerce, Redis, Sidekiq, Elasticsearch

Senior Software Engineer

2012 - 2014

Undev/NPTV

Developed the internal build server (Rails and PostgreSQL) for Debian packages that helped to visualize and ease the continuous integration and deployment process. This tool also required the deep customization of GitLab for the git pushes and hooks.
Created the high-performance log collect/transform/route tool using Erlang/OTP to redirect the log and telemetry data from multiple sources and devices to different types of storages (PostgreSQL, MongoDB, mounted NFS) and consumers (UDP, 0MQ).
Built the in-house authentication system for TV devices and tablets, which required entering the OTP code from the screen and logging out from the other devices.

Technologies: Ruby, Erlang, Erlang (OTP), Go, Ruby on Rails (RoR), Concurrent Programming, Internet of Things (IoT), Private Clouds, GitLab, Rapid Prototyping

Software Developer

2011 - 2012

LookAtMedia

Upgraded the codebase from Rails 2.x to Rails 3.x and from REE 1.8.7 to Ruby 1.9.
Developed the Nextgen admin panel using the early versions of Bootstrap CSS.
Improved the master-master and master-slave replication across MySQL databases in geo-distant data centers.

Technologies: Ruby on Rails (RoR), MySQL, Percona, Bootstrap

Software Developer

2008 - 2011

Unique Technologies

Contributed to the Psiphon Inc. open source web proxy Apache module.
Integrated the Japanese text-to-speech software into the Twitter-style social network.
Created the analytics and scraping tool to estimate the SEO readiness grade of the websites and pages.

Technologies: Ruby, ANSI C, Ruby on Rails (RoR), Django, MongoDB

Junior Software Developer

2007 - 2008

WorksForWeb

Mastered the customizations of the proprietary classifieds software.
Created an in-house CRM system using the classifieds software they sell.
Participated in the efforts of improving the internal architecture and logic.

Technologies: PHP, MySQL, Smarty

Experience

Setka.io

https://setka.io

Setka CMS/CMF and WYSIWYG Editor were sold to Tiny (a company around TinyMCE Editor). I was responsible for the back-end core and for providing scalability and extensibility in starting new projects using the same core codebase.

Skills

Languages

JavaScript, Ruby, GraphQL, HTML5, Erlang, CSS3, Go, TypeScript, ECMAScript (ES6), Erlang (OTP), ANSI C, PHP

Frameworks

Ruby on Rails (RoR), Bootstrap, Django, Smarty

Libraries/APIs

React, Node.js, QuickBooks API, Vue, Sidekiq

Tools

RSpec, Git, Slack, GitLab

Paradigms

Microservices, Continuous Integration (CI), Test-driven Development (TDD), Rapid Prototyping, Scrum, Concurrent Programming, Continuous Delivery (CD), Kanban, Agile Software Development

Platforms

Amazon Web Services (AWS), Kubernetes, Docker, Linux, MacOS, Heroku, Solidus, Google Cloud Platform (GCP), Percona

Storage

Elasticsearch, MySQL, PostgreSQL, Redis, MongoDB, Memcached

Other

Spree Commerce, ChatGPT, WebSockets, Google BigQuery, Data Mining, Internet of Things (IoT), Private Clouds

Collaboration That Works

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