Najmaz Sakib

Senior Engineer – Service Assurance

Infozillion Teletech BD Ltd

• Lead shift operations as shift lead — overseeing handovers, prioritisation, and team coordination across the 24/7 production environment.
• Own client communication during incidents, translating technical findings into clear, actionable updates.
• Handle end-to-end issue resolution and helpdesk ticketing with structured escalation across L1/L2.
• Investigate A2P SMS delivery failures through in-depth log analysis and telecom operator coordination; troubleshoot HTTP errors (4xx/5xx) and API failures.
• Built and maintain a suite of browser-based reporting tools used daily by the team — automating ELK CSV parsing, pivot table generation, and ready report output (GitHub: sakib-opsgrid).
• Designed and maintained a team-wide knowledge base (Sphinx/ReadTheDocs) covering client query handling, helpdesk response templates, email workflows, and MNO/IPTSP error code resolutions.

Engineer – Service Assurance

Infozillion Teletech BD Ltd

• Served as Level 2 troubleshooting shift lead — owning escalated incidents beyond initial triage and coordinating resolution across the team.
• Monitored system, application, and network health via ELK Stack, Grafana, and Nagios to maintain high availability.
• Reduced incident response time by implementing structured log analysis workflows and proactive alert tuning.

A2P Support Engineer

Infozillion Teletech BD Ltd

• Handled SLA-driven L1 helpdesk tickets in a 24/7 production environment, with structured escalation for unresolved issues.
• Monitored A2P SMS infrastructure and conducted first-line troubleshooting for delivery failures and routing issues.

Project Delivery Assistant

Quantigo AI

• Ensured deliverables met quality standards and client specifications across multiple concurrent projects.
• Managed annotation workflows and validated dataset accuracy for AI/ML model training pipelines.

Data Analyst

Intelligent Image Management Ltd

• Processed and validated structured datasets to support operational reporting requirements.
• Identified data inconsistencies to improve downstream system reliability.

Research Associate

Bangladesh Institute of Management

• Assisted with research activities, data collection, and project documentation.

Service Assurance Toolset

HTML · CSS · JavaScript · GitHub Pages

• Daily Shift Report Tool — Parses ELK Discover CSV exports; auto-generates pivot tables for 9xxx/1xxx error codes, HTTP 4xx/5xx, and DLR status; produces ready reports with Google Drive backup.
  GitHub  ·  Live
• Morning Shift Report — Aggregates ELK CSV exports and live Google Sheets data into a structured shift summary with auto-save and 30-report history.
  GitHub  ·  Live
• MNP Disk Status Reporter — Converts raw Nagios output into a clean disk/memory/swap status report; auto-filters critical partitions (≤20% free) and formats for team distribution.
  GitHub  ·  Live

Operational Knowledge Base

Sphinx · GitHub · ReadTheDocs

• Designed and maintained a searchable internal documentation system — primary reference and onboarding resource for the Service Assurance team.
• Covers client query handling, helpdesk response templates, email workflows, and MNO/IPTSP error code resolutions.
• Integrated with GitHub and ReadTheDocs for version-controlled, centrally accessible team documentation.

B.Sc. in Computer Science & Engineering

Daffodil International University (DIU), Bangladesh