Summary
Overview
Work History
Education
Skills
Websites
Timeline
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Danis Nizamutdinov

Danis Nizamutdinov

Performance QA Engineer/ SDET
Belgrade

Summary

Experienced Performance Testing Engineer and SDET with a strong track record in optimizing system performance and reliability. Skilled in designing and executing performance testing strategies, identifying bottlenecks, and ensuring scalability of high-load systems and microservices. Adept at delivering robust solutions in fast-paced environments. Seeking to apply expertise in a challenging role to drive performance excellence.

Overview

5
5
years of professional experience
5
5
years of post-secondary education
2
2
Languages

Work History

Performance QA Engineer / Software Development Engineer in Test

AramMeem Ltd.
11.2022 - Current
  • "ToYou" food delivery service. The Service Team
  • Developed custom JMeter and K6 test plans to simulate realistic user scenarios for BSS and business systems, later transitioning fully to K6 for distributed testing
  • Configured and analyzed performance metrics using DataDog and Grafana, focusing on response times, throughput, and error rates, identifying bottlenecks and providing optimizations
  • Successfully identified and resolved a critical database performance issue, leading to a 1.5x reduction in cloud database server costs through query optimization (based on pg_stats), API caching, and workload distribution to a dedicated read replica
  • Developed and implemented a CI/CD pipeline for distributed test execution, integrating Python scripts for automated result analysis with unit tests and JUnit reporting, enabling trend visualization in Jenkins
  • Automated comparison of test results with SLA requirements (response time, error rates) and test profile adherence, improving performance monitoring accuracy
  • Designed and implemented a pipeline for automated test profile collection and comparison, reducing manual effort in test maintenance and enabling more time for expertise development

Performance QA Engineer

T1 Integration
09.2021 - 09.2022
  • Part of a service team, responsible for performance testing of high-load retail banking microservices serving 10M+ customers.
  • Redefined performance testing methodology, tools, and environments, enabling the reproduction of production issues in a test setting and providing key metrics for resolving them
  • Conducted performance testing on critical microservices, identifying real-world failures under peak loads despite previous successful tests
  • Discovered and analyzed performance bottlenecks, including a Kafka sharding optimization process and a PostgreSQL-based issue where performance degraded with increased database size
  • Designed automated report generation for test results with integration into Confluence, as well as automated test environment configuration comparison, ensuring consistency between test and production settings
  • Collaborated with developers, architects, and infrastructure teams to ensure production-grade reliability, providing data-driven insights into system scalability and performance trends

Performance QA Engineer

LANIT-Expertise
03.2020 - 09.2021
  • Company Overview: Sber project. Credit Processing System (Pega) & Microservices
  • Conducted performance testing for a monolithic credit processing system and supporting microservices (e.g., document processing service for loan applications)
  • Defined load, stress, and endurance testing scenarios in collaboration with developers
  • Developed and executed tests using HP LoadRunner & HP Performance Center with automated execution
  • Ensured system stability under increasing production load without infrastructure scaling
  • Validated microservices' performance within resource limits, enabling their timely production launch
  • Successfully optimized system performance, allowing new features and growing traffic without additional server costs, ensuring smooth production releases

Education

No Degree - Development And Expluatation of Gas And Oil Fields

Ishimbay Oil College
Ishimbay, Russian Federation
05.2009 - 06.2014

Skills

    Performance testing

    Load testing

    Java

    Stress testing

    Python

    Jmeter

    K6

    Kubernetes

    Docker

    Grafana

    Prometheus

    PostgreSQL

    Kafka

    RabbitMQ

    Jenkins

    ELK

    Linux

    Git

    DataDog

    Bash

    Redis

    InfluxDB

Timeline

Performance QA Engineer / Software Development Engineer in Test

AramMeem Ltd.
11.2022 - Current

Performance QA Engineer

T1 Integration
09.2021 - 09.2022

Performance QA Engineer

LANIT-Expertise
03.2020 - 09.2021

No Degree - Development And Expluatation of Gas And Oil Fields

Ishimbay Oil College
05.2009 - 06.2014

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Danis NizamutdinovPerformance QA Engineer/ SDET