Istiaque Ahmed - Quality Assurance Engineer - Compax Digital (Remote)

Summary

Quality assurance engineer with extensive experience in functional and regression testing, defect management, and telecom protocol validation. Demonstrated ability to enhance product quality and reliability through effective collaboration with engineering and product teams. Proficient in network troubleshooting, incident management, and root cause analysis, with expertise in Red Hat Linux and PostgreSQL. Focused on designing test scenarios that align with business and technical requirements while ensuring thorough test documentation and continuous process improvement in agile environments.

Overview

1

Language

4

years of professional experience

Work History

Quality Assurance Engineer

Compax Digital (Remote)

Dhaka, Bangladesh

01.2025 - Current

Plan and execute functional integration and regression testing using defined procedures.
Validate features against business and technical requirements during each release cycle.
Design test scenarios and cases from functional and technical needs.
Track documented software defects and retest fixes across the lifecycle.
Test telecom network services protocols and interfaces end-to-end for correctness.
Analyse logs and signalling flows to troubleshoot system behaviour issues.
Collaborate with engineering and product teams to resolve issues quickly.
Maintain test documentation, results, defect reports, and quality records.

Operations Engineer

INEW Unified Mobile Solutions

Dhaka, Bangladesh

08.2022 - 12.2024

Handled faults, incidents, troubleshooting, and service restoration within SLAs.
Troubleshot connectivity, signalling, and end-to-end telecom service issues.
Analysed alarms, logs, KPIs, traces, and PCAPs to resolve impacts.
Performed RCA for critical and recurring incidents and applied corrective actions.
Monitored network elements, services, and performance to maintain availability.
Troubleshot telecom protocols and interfaces including SIP, Diameter, GTP, S1AP, NAS, NGAP.
Coordinated with NOC vendors and cross-functional teams for resolution.
Supported configuration changes, upgrades, patches, and planned maintenance validations.
Prepared incident reports, RCA documentation, and performance summaries for stakeholders.
Contributed to network optimisation service improvements and operational efficiency.
Maintained accurate documentation and followed change-management, security, and network procedures.

Education

Bachelor of Science - Software Engineering

American International University

Bangladesh

01-2022

Skills

Testing & QA: Functional Testing, Regression Testing, Manual Testing, Test Case & Workflow Design, Defect Management, Service Verification

Technical: PostgreSQL, Red Hat Linux, Postman, Network Troubleshooting, Telecom Protocols, Automation

Operations: Incident Management, Root Cause Analysis, Technical Documentation, Process Improvement

Professional: Analytical Problem Solving, Agile Adaptability, Stakeholder Collaboration, Teamwork

Languages

English, Bengali

First Language

Additional Information

Telecommunications Domain Experience

Spark New Zealand – QA Engineer: QA testing for telecom and digital services, covering requirements analysis, test case design, functional, regression, integration and E2E testing, defect management, and stakeholder collaboration.
T-Mobile US – QA Engineer: Testing and validation of telecom products and services, including test planning, execution, regression/integration testing, defect management, and release quality assurance.
Grameenphone, Bangladesh – Operations Engineer: Telecom operations and service reliability, including incident management, network monitoring, troubleshooting, service assurance, and day-to-day network operations.

End-to-end telecom experience across QA, service assurance, network operations, and software testing in Bangladesh, New Zealand, and the United States.

Timeline