Professional Experience

Key achievements and impact across enterprise organizations

Synechron / Commonwealth Bank of Australia

Jan 2025 – Present · Sydney, Australia

Senior Platform Engineer / Senior Staff Data Engineer

Architecting and operating enterprise-scale data and platform systems within AWS Landing Zone, enabling AI-ready architecture through the Enterprise Semantic Data Model (ESDM) at Commonwealth Bank. Acting as Security Champion, driving AI-powered security assessments, DevSecOps governance, and AI agent safety controls.

Delivered ~AUD 240K annual cost savings by replacing external SaaS (Metaphactory) with an internally deployed semantic platform using Docker Compose and AWS infrastructure.

Key Achievements

  • •Architecting enterprise-scale data and platform systems within AWS Landing Zone for AI-ready architecture
  • •Designing and deploying end-to-end applications (UI, BFF, APIs, PostgreSQL) using AI-assisted development workflows
  • •Automating infrastructure using Terraform and AWS CloudFormation for scalable and repeatable deployments
  • •Implementing enterprise API platform (Kong Gateway) for internal domain integration and third-party SaaS exposure
  • •Integrating Kafka, APIs and semantic data models to enable unified enterprise data access and interoperability
  • •Building and operationalizing RAG pipelines and multi-agent AI systems for data-driven automation
  • •Leveraging GitHub Copilot, Microsoft Copilot, Claude, and GPT models to accelerate full-stack and infrastructure delivery
  • •Working with AWS Bedrock and Guardrails for secure, governed and compliant AI adoption
  • •Acting as Security Champion: AI-powered security assessments across SDLC, DevSecOps governance, AI agent safety controls
  • •Delivered ~AUD 240K annual cost savings by replacing external SaaS (Metaphactory) with internally deployed platform
  • 🏆Nominated for CBA Breakthrough Outcomes Excellence Award — ESDM Ecosystem & Design CoE team. Nomination proceeds to Leadership Team judging for quarterly winner announcement.
$240K
Annual Savings
ESDM
AI Architecture
RAG
Multi-Agent AI
SecChamp
Security Champion

Technologies & Tools

AWS Landing Zone Terraform Kong Gateway Kafka AWS Bedrock PostgreSQL Metaphactory GitHub Copilot

NCS Group

Sep 2023 – May 2024 · Singapore

Senior DevOps Engineer / IT Architect

Designed and implemented cloud-native microservices platform using Kubernetes (EKS) for enterprise-scale applications, and led cloud migration from bare-metal to AWS.

  • • Designed and implemented cloud-native microservices platform using Kubernetes (EKS) for enterprise-scale applications
  • • Architected and maintained CI/CD pipelines (AWS CodePipeline, CodeBuild, Helm workflows)
  • • Automated infrastructure provisioning using Terraform, enabling scalable and repeatable deployments
  • • Designed and managed API platform architecture (Amazon API Gateway) for secure service exposure
  • • Led cloud migration (Bare-metal → AWS) improving scalability, resilience and operational efficiency
  • • Implemented DevSecOps security controls including IAM, WAF, TLS/SSL and traffic governance
  • • Identified and resolved a misconfigured workload, reducing CloudWatch logging costs by ~$671/month
EKS
Kubernetes Platform
$671
Monthly Savings
BM→AWS
Cloud Migration
DevSecOps
Security Controls

Digify Pte Ltd

Oct 2022 – Aug 2023 · Singapore

Senior DevOps Engineer

Architected and managed AWS-based cloud infrastructure for a secure SaaS platform, improving deployment velocity and system reliability.

  • • Architected and managed AWS-based cloud infrastructure for secure SaaS platform
  • • Designed and implemented CI/CD pipelines (Jenkins, PowerShell), improving deployment velocity (~100%)
  • • Automated infrastructure using Terraform and CloudFormation
  • • Implemented high availability and disaster recovery (HA/DR) including regional failover and backup systems
  • • Led security hardening initiatives across IAM, WAF, TLS and access control mechanisms
  • • Optimized systems using AWS Well-Architected principles for performance and cost efficiency
  • • Built observability using CloudWatch, ELK Stack and Datadog
  • • Leveraged GPT models and AI tools to enhance automation, scripting and engineering productivity
~100%
Deploy Velocity
HA/DR
Regional Failover
IaC
Terraform & CFN
AI-Ops
GPT-Assisted

Certain, Inc.

Nov 2021 – Oct 2022 · San Francisco, CA, USA

Site Reliability Engineer

Designed and operated cloud infrastructure across AWS and Azure for a global SaaS platform, with a strong focus on reliability, performance and scalability.

  • • Designed and operated cloud infrastructure across AWS and Azure for global SaaS platform
  • • Built and maintained high-availability systems with strong focus on reliability, performance and scalability
  • • Contributed to development of BI/ML data platform using AWS (S3, Glue, Athena, ECS) and big data pipelines
  • • Led cloud migration strategy for acquired products (Rackspace → AWS), redesigning from 2-tier to scalable 3-tier architecture
  • • Implemented Infrastructure as Code using CloudFormation and SaltStack
  • • Enhanced observability and system reliability using ELK Stack, Datadog and CloudWatch
  • • Supported 24/7 production systems serving global customers with strict SLA requirements
AWS+Azure
Multi-Cloud
BI/ML
Data Platform
3-Tier
Architecture
24/7
Global SLA

Freelance Technical Work & Consultancy

Jul 2019 – Nov 2021 · Dhaka, Bangladesh

Self-Employed Technical Consultant

Delivered cloud architecture, automation and security solutions across AWS, Linux and Windows environments.

  • • Delivered cloud architecture, automation and security solutions across AWS, Linux and Windows environments
  • • Implemented Infrastructure as Code and automation using Terraform, Ansible and Bash scripting
  • • Designed and deployed containerized systems using Docker and Kubernetes
  • • Provided IAM and security architecture solutions across cloud and enterprise systems
  • • Supported Microsoft 365 deployment, configuration and enterprise troubleshooting
AWS
Cloud Architecture
IaC
Terraform & Ansible
Docker
Containerization
IAM
Security Arch

Grameenphone Ltd.

Nov 2017 – Jun 2019 · Dhaka, Bangladesh

Senior Lead Engineer – Core & Service Projects, Technology

Led large-scale cloud and NFV (Network Function Virtualization) projects across telecom infrastructure using Nokia and Huawei technologies.

  • • Led large-scale cloud and NFV projects across telecom infrastructure
  • • Designed and deployed cloud-native platforms using Nokia and Huawei technologies
  • • Delivered enterprise-grade infrastructure systems including security platforms and centralized logging
  • • Managed multi-vendor, multi-system integrations across critical telecom environments
NFV
Virtualization
Multi
Vendor Integration
Nokia
& Huawei
SIEM
Security Platform

Grameenphone Ltd.

May 2015 – Oct 2017 · Dhaka, Bangladesh

Lead Engineer – Voice & Data Service Operation, Technology

Led operations of mission-critical telecom systems supporting ~70 million subscribers, including the world-record HLR migration of 53M+ SIM cards.

Key Achievements

  • •Led operations of mission-critical telecom systems supporting ~70 million subscriber base
  • •Directed HLR migration (53M+ SIM, 35M+ subscribers) — World Record
  • •Led LTE trials and network modernization initiatives
  • •Managed security audits, vulnerability remediation and IAM systems
  • •Provided technical leadership for performance optimization and system reliability
53M+
SIM Migrated
70M
Subscribers
World
Record HLR
24/7
Operations

Grameenphone Ltd.

Jan 2012 – May 2015 · Dhaka, Bangladesh

Senior System Engineer – Voice & Data Service Operation, Technology

Administered core telecom infrastructure across Linux and Windows systems, managing subscriber databases and implementing enterprise security.

  • • Administered core telecom infrastructure across Linux and Windows systems
  • • Managed subscriber database systems (Oracle, MS SQL)
  • • Implemented IAM integrations and SIEM systems for enterprise security
  • • Provided 24/7 operational support for critical network services
Oracle
DB Admin
SIEM
IAM Integration
Linux
& Windows
24/7
Network Ops

Grameenphone Ltd.

Jun 2010 – Dec 2011 · Dhaka, Bangladesh

Executive – Revenue Assurance & Fraud Management, Technology

Built data validation and fraud detection systems using SQL and ETL processes to ensure revenue integrity across telecom systems.

  • • Built data validation and fraud detection systems using SQL and ETL processes
  • • Performed data reconciliation across telecom systems to ensure revenue integrity
  • • Designed and implemented controls and monitoring systems for financial risk reduction
SQL
Data Validation
ETL
Data Pipelines
RA
Revenue Assurance
FM
Fraud Detection

Technical Proficiencies

Cloud Platforms

  • • AWS (EKS, ECS, Lambda, S3)
  • • EC2, VPC, Route 53
  • • Private Cloud, Rackspace

Containers & Orchestration

  • • Kubernetes, Amazon EKS
  • • Docker, Podman
  • • Docker Swarm, ECS
  • • Helm Charts

Infrastructure as Code

  • • Terraform
  • • AWS CloudFormation
  • • Ansible, Saltstack
  • • Configuration Management

CI/CD & DevOps

  • • Jenkins, AWS CodePipeline
  • • GitHub Actions, Bamboo
  • • Git, GitHub, Bitbucket
  • • AWS CodeBuild, CodeDeploy

Security & IAM

  • • AWS IAM, GuardDuty, Inspector
  • • AWS WAF, KMS, Cognito
  • • SIEM (ArcSight Logger)
  • • Nessus, Oracle IAM/PAM

Databases & Data

  • • RDS, Aurora, DynamoDB
  • • PostgreSQL, MySQL, Redshift
  • • Oracle DB, MS SQL Server
  • • AWS Glue, Athena, Kinesis

Monitoring & Observability

  • • CloudWatch, Datadog
  • • ELK Stack, OpenSearch
  • • Dynatrace

AI & Modern Tech

  • • AWS Bedrock, Guardrails
  • • RAG Pipelines, LLMs
  • • Multi-Agent Systems
  • • AI Safety & Governance

Programming & Scripting

  • • Python, Bash, PowerShell
  • • SQL, Apache Spark, Scala
  • • YAML, JSON, XML, Jinja
  • • HTML, CSS, JavaScript

Operating Systems

  • • Linux (RHEL, CentOS)
  • • Ubuntu, SUSE
  • • Amazon Linux
  • • Windows Server

Networking & Services

  • • VPC, Route 53, CloudFront
  • • API Gateway, Load Balancers
  • • SES, SQS, SNS, SWF
  • • Direct Connect, VPN

Telecommunications

  • • HLR/HSS, MSC, MGW, STP
  • • NFV, VNF, IMS, VoLTE
  • • Revenue Assurance, RAFM
  • • SS7, SMSC, IN Platforms

Additional AWS Services

  • • Backup, Systems Manager
  • • Certificate Manager (ACM)
  • • Media Convert, Transcoder
  • • Cost Explorer, Trusted Advisor

Web & Application Servers

  • • Apache HTTPD, Tomcat
  • • NGINX, JBoss EAP
  • • IIS, ASP.NET
  • • Ruby on Rails

Data & Analytics

  • • Tableau Desktop
  • • Apache Hadoop
  • • Data Warehouse, BI
  • • Neptune, Ontotext GraphDB

Project Management

  • • PRINCE2 Foundation
  • • PRINCE2 Practitioner
  • • Jira, Confluence
  • • Agile Methodologies

Awards & Recognition

CBA Excellence Award — Breakthrough Outcomes

CURRENT

Commonwealth Bank of Australia — ESDM Ecosystem & Design CoE Team

Nominated for delivering the group-wide rollout of Metaphactory as the strategic ESDM authoring platform — establishing a single, enterprise-grade capability for defining, governing and publishing semantic models across Technology, and operationalising the Group's Data Strategy at enterprise scale.

"Made It Happen" Award

Q4 2016 - Grameenphone Ltd.

Flawless execution of Huawei HLR Expansion and Migration in Grameenphone network

Q Awards

Q4 2018 - Grameenphone Ltd.

Successfully rolling out Single Virtual platform for PS core (Huawei VNF, Nokia NFV platform)

Divisional Excellence Award Nomination

Q2 2016 - Grameenphone Ltd.

Network quality leadership by delivering crucial technology project in time and with quality

Divisional Excellence Award Nomination

Q4 2017 - Grameenphone Ltd.

First-ever vDSC project within Telenor group, completed within timeline

"Exceeds Expectations" Rating

2016 - Grameenphone Ltd.

Recognition of remarkable technical contribution

Golden Key International Honour Society

2008 & 2009 - Monash & ANU

Top 15% students - Invitation only membership