Said Kaldybaev, Developer in Vancouver, BC, Canada
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Said Kaldybaev

Verified Expert  in Engineering

Software Engineer and Developer

Vancouver, BC, Canada

Toptal member since December 20, 2024

Bio

Said is an experienced software engineer with a proven track record of developing and maintaining high-quality, efficient, and reliable code. Detail-oriented and highly motivated, he possesses strong problem-solving skills and excels at collaborating with cross-functional teams to deliver solutions that align with user needs. His technical expertise and team-oriented mindset make him a valuable asset to any team, driving innovation and ensuring project success.

Portfolio

Malwarebytes
Ruby, Amazon Simple Queue Service (SQS), PostgreSQL, AWS Lambda...
Ample Organics
JavaScript, Vue, Front-end Development, CSS, Jest, Node.js, Ruby...
Malwarebytes
React, Ruby, SQL, Amazon Simple Queue Service (SQS), JavaScript...

Experience

  • Ruby - 13 years
  • JavaScript - 12 years
  • Ruby on Rails (RoR) - 10 years
  • REST APIs - 8 years
  • PostgreSQL - 8 years
  • MySQL - 7 years
  • Vue - 5 years
  • React - 5 years

Availability

Full-time

Preferred Environment

Ruby, JavaScript, React, Vue, PostgreSQL, Ruby on Rails (RoR)

The most amazing...

...project I've worked on was developing a real-time recommendation engine for an eCommerce platform.

Work Experience

Senior Software Engineer

2020 - 2024
Malwarebytes
  • Developed distributed licensing services to facilitate the purchase of anti-malware and privacy products, redeem and activate their devices, and seamlessly process payments via the 2Checkout online payment service.
  • Built the MyAccount portal, enabling users to manage their subscriptions and licenses. Implemented features for managing devices, updating billing details, and viewing payment histories leveraging React, Redux, TypeScript, and GraphQL.
  • Managed a cross-functional team of five engineers to develop an automated customer data deletion project, ensuring SOC 2 compliance and the timely removal of obsolete accounts, meeting deadlines, and improving data management.
Technologies: Ruby, Amazon Simple Queue Service (SQS), PostgreSQL, AWS Lambda, Amazon Elastic Container Service (ECS), Amazon Simple Notification Service (SNS), Elasticsearch, Amazon DynamoDB, Sidekiq, Ruby on Rails 6, APIs, GraphQL API, Full-stack, Back-end, Database Design, CSS, Bootstrap 5, TypeScript, HTML, HTML5, CSS3

Senior Full-stack Developer

2018 - 2020
Ample Organics
  • Rearchitected the core application to support multitenancy, enhancing scalability and flexibility. Optimized the onboarding process, reducing costs by 50% by enabling multiple customers to be served from a single instance.
  • Reduced organizational reliance on QA regressions by increasing test coverage from 30% to 80% through end-to-end and snapshot testing using RSpec, rspec-snapshot, and Cypress test utilities.
  • Standardized technical processes, best practices, and API documentation using OpenAPI, enabling the delivery of high-quality products to customers with greater consistency and reliability.
Technologies: JavaScript, Vue, Front-end Development, CSS, Jest, Node.js, Ruby, Ruby on Rails 6, OOP Designs, PostgreSQL, Figma, JSON, REST, GraphQL, JSON API

Software Engineer

2016 - 2018
Malwarebytes
  • Isolated PDF generation and email sending functionalities from a monolithic application, redesigning them as independent microservices. Built new APIs and features and integrated the microservices into the existing infrastructure using Apache Kafka.
  • Integrated CI/CD with Travis CI, yielding a faster iteration cycle and automated new feature branch code testing. Integrated and maintained 3rd-party suppliers, including Cleverbridge, Zuora, Salesforce, and Zendesk.
  • Enhanced system reliability by introducing automated monitoring and alerting for payment processing and email delivery services, reducing downtime and improving incident response time.
Technologies: React, Ruby, SQL, Amazon Simple Queue Service (SQS), JavaScript, API Integration, HTML5, Bootstrap 5, CSS, Database Design, JSON, Google Maps, Front-end, Back-end, APIs

Software Developer

2015 - 2016
EveryPay AS
  • Developed and maintained a cloud-based, compliant payment gateway platform with robust APIs supporting diverse payment methods, ensuring the full Payment Card Industry Data Security Standard (PCI DSS) and General Data Protection Regulation (GDPR) compliance while optimizing transaction processing.
  • Spearheaded the development of seamless API integrations that enabled merchants to securely process payments across multiple platforms, enhancing user experience and streamlining payment workflows.
  • Architected an open-source integration module for e-shops to support card payments, utilizing PHP, Python, and JavaScript with an API.
Technologies: JavaScript, jQuery, Python

Software Developer

2011 - 2015
GeoPay Inc
  • Built a mobile money transfer service, enabling consumers to exchange value through cash transfers, top-ups, m-commerce, and bill payments. Collaborated closely with cross-functional teams to address and resolve complex user challenges.
  • Developed USSD/SMS gateways using Ruby and EventMachine, implementing multiple event loops for various requests. Developed APIs to manage USSD and SMS interactions and integrated the gateways with our existing infrastructure.
  • Tracked and fixed bugs using Jira as a reporting tool.
Technologies: JavaScript, Ruby, PHP

Experience

Arena | Real Estate Marketplace Platform

I developed a real estate marketplace platform using Ruby on Rails to facilitate property buying and selling. The platform integrates Google Maps for location-based features, providing users with an intuitive and interactive experience for browsing listings and exploring properties.

Education

2007 - 2012

Bachelor's Degree in Computer Science

Ala-Too International University - Bishkek

Certifications

JANUARY 2022 - JANUARY 2025

AWS Certified Cloud Practitioner

Amazon Web Services

OCTOBER 2015 - PRESENT

Web Application Security Advanced

Clarified Security OÜ

DECEMBER 2012 - PRESENT

M101: MongoDB for Developers

MongoDB University

Skills

Libraries/APIs

REST APIs, Vue, React, jQuery, Google Maps, Node.js, JSON API, Sidekiq, GraphQL API

Tools

Amazon Simple Queue Service (SQS), Figma, Amazon Elastic Container Service (ECS), Amazon Simple Notification Service (SNS), AWS CLI, AWS SDK, AWS Deployment

Languages

Ruby, JavaScript, GraphQL, PHP, Python, SQL, HTML5, CSS, TypeScript, HTML, CSS3

Frameworks

Ruby on Rails (RoR), Jest, Ruby on Rails 6

Storage

Redis, MongoDB, PostgreSQL, MySQL, JSON, Elasticsearch, Amazon DynamoDB, SQL Injection Protection, NoSQL, Databases

Paradigms

Test-driven Development (TDD), Database Design, REST, Penetration Testing, Agile Software Development

Platforms

AWS Lambda, AWS IoT

Other

API Integration, Bootstrap 5, Front-end, Back-end, APIs, Front-end Development, OOP Designs, Full-stack, Security, XSS, Software QA, Algorithms

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