Overview
Work History
Education
Skills
Timeline
Generic

Tahir Mammadov

Toronto,Canada

Overview

6
6
years of professional experience

Work History

Software Engineer

Amazon
03.2025 - Current
  • Improved customer data privacy by integrating Aurora PostgreSQL operational workflows with AWS ZOA, implementing policy-based access controls that automatically approve, reject, or require customer consent for sensitive engineer operations..
  • Designed and implemented a dynamic timeout adjustment mechanism for Aurora PostgreSQL read-only node joins—eliminating infinite retry loops—and delivered the solution end-to-end with direct customer collaboration, resulting in a 100% reduction in on-call pages related to join timeouts.
  • Mentored junior engineers, providing technical guidance and career support that contributed to multiple promotion outcomes.

Senior software engineer

Empower
11.2023 - 03.2025
  • Resolved a critical double debit issue through data analysis and automated monitoring, reducing company costs by $10K per month
  • Recommended and led the migration from Storage Queues to Service Bus, reducing publishing times from 1 hour to under 3 minutes for over 2.5 million items, which significantly improved system throughput and operational efficiency
  • Optimized unit testing processes by implementing parallel execution, leading to a dramatic reduction in test runtimes and accelerated development cycles, thus enhancing productivity
  • Refined the collection mechanism, improving system performance, scalability, and reliability
  • Designed an automated refund system to manage double debits, eliminating the need for manual intervention and saving substantial company time

Senior Software Engineer

Borderless
01.2023 - 11.2023
  • Led a cross-functional team in designing and implementing a secure two-factor authentication system, enhancing user experience, while ensuring strict adherence to industry standards for security and usability
  • Designed and implemented a contract generation tool that automated 98% of manual processes, drastically reducing human error and saving 10 hours per week, contributing to improved operational efficiency
  • Orchestrated the entire development lifecycle, fostering seamless collaboration among team members and ensuring strict adherence to project timelines
  • Influenced team OKRs and strategic goals by actively contributing to management meetings, aligning technical initiatives with business objectives

Software Engineer

Clearco
06.2021 - 01.2023
  • Engineered a new payment and beneficiary service architecture, resulting in $1M annual savings in fees, demonstrating a strong financial impact
  • Architected a scalable payment system with built-in security measures to support evolving business needs and compliance with industry standards
  • Delivered high-quality, efficient code that balanced speed with performance, contributing to reduced development cycles and improved product reliability

Backend Developer

Ecobee
01.2021 - 06.2021
  • Increased code coverage by 20% through implementing strategic testing methodologies and refactoring services, ensuring more reliable and maintainable code
  • Introduced a retry policy that led to a 13% improvement in thermostat dispatch success rates, bolstering overall system reliability
  • Migrated database operations from raw SQL to GORM, improving data handling efficiency and simplifying database interactions

Software Engineer

Ritual Inc
07.2019 - 01.2021
  • Optimized Spring REST controllers and custom JSP tag libraries, boosting request handling efficiency and enhancing application performance
  • Redesigned the payment system, improving both reliability and speed, contributing to a smoother user experience and reduced downtime
  • Played a key role in global product launches and led technical initiatives, driving strategic impact on business expansion
  • Developed a Google Calendar integration feature to automate appointment rescheduling and cancellation

Education

Bachelor of Computer Science -

University of Waterloo,

Skills

    Languages: Java, Python, Go, JavaScript, C/C, C#
    Web Development: HTML, CSS, React, React Native
    Frameworks & Libraries: Spring Boot, Flask, Expressjs, NET Framework/Core, Nestjs
    Databases: MySQL, PostgreSQL, MongoDB, Cosmos DB
    Cloud & DevOps: AWS, Azure, Google Cloud Platform, Docker, Kubernetes, Jenkins, Azure Service Bus

Timeline

Software Engineer

Amazon
03.2025 - Current

Senior software engineer

Empower
11.2023 - 03.2025

Senior Software Engineer

Borderless
01.2023 - 11.2023

Software Engineer

Clearco
06.2021 - 01.2023

Backend Developer

Ecobee
01.2021 - 06.2021

Software Engineer

Ritual Inc
07.2019 - 01.2021

Bachelor of Computer Science -

University of Waterloo,
Tahir Mammadov