IMROZZOHA CHOWDHURY

Senior Staff DevSecOps & Platform Engineer | AWS | Kubernetes | AI-Powered Systems

(RAG, Multi-Agent) | API Platforms (Kong) | Bedrock

ABOUT ME

Senior Staff DevSecOps and Platform Engineer with about 16 years of experience

designing and operating large-scale cloud, data and distributed systems across

telecommunications, SaaS and banking domains.

Currently building AI-ready enterprise platforms enabling agentic AI systems, semantic

data access and automated API generation, with a strong focus on DevSecOps, cloud

security and platform automation.

Expert in AWS, Kubernetes, Terraform and CI/CD, with hands-on experience in

infrastructure automation, secure platform engineering and developing RAG pipelines,

multi-agent systems and end-to-end applications using AI-assisted development tools.

Strong background in DevSecOps, API platforms (Kong Gateway) and secure AI

adoption using AWS Bedrock and Guardrails.

CONTACT

Unit 605, 59A Queen Street, Auburn, NSW 2144,

Sydney, Australia.

+61449981744

shohash@yahoo.com

https://www.linkedin.com/in/imrozzoha-

chowdhury

https://imrozzoha.github.io

EXPERIENCE

SENIO R PL ATFOR M E NGINEE R ( S E NIOR S T AFF D ATA E NGINE E R @ CB A)

Synechron, Sydney, Australia

Jan 2025 - Present

 Architecting and operating enterprise-scale data and platform systems within

AWS Landing Zone, enabling AI-ready architecture (ESDM @ CBA).

 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 @ CBA, driving:

o AI-powered security assessments across SDLC

o DevSecOps governance and compliance

o AI agent safety and security controls

 Delivered ~AUD 240K annual cost savings by replacing external SaaS with

internally deployed semantic platform (Metaphactory) using Docker Compose

and AWS infrastructure.

SENIO R DEVOPS E NGINEER / IT ARCHITECT

NCS Group, Singapore

Sep 2023 - May 2024

 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 re-utilizing existing database license cost.

 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 through improved monitoring and governance.

EDUCATION

THE A U S T R ALIAN N A TIO N A L

UN I V E R S I TY (AN U ) , 2 0 09

Master of Information Technology Studies

MONA S H U N IVER S I T Y , 200 8

Master of Telecommunication Engineering

A ME R I C A N INTER N A T I O N AL

UN I V E R S I TY - B A N G L A D ESH (A I U B ) ,

2006

Bachelor of Science in Computer Engineering

SKILLS

AI & Intelligent Systems: RAG, Multi-Agent

Systems, LLM Integration, Bedrock, AI-assisted

development.

Cloud & Platform: AWS, Distributed Systems,

High Availability, Landing Zone.

DevOps & IaC: Terraform, CloudFormation,

CI/CD, Jenkins, GitHub.

Containers: Docker, Kubernetes, Helm.

API & Integration: Kong Gateway, API

Gateway, Kafka, Microservices.

Security: IAM, WAF, GuardDuty, DevSecOps,

SIEM.

Data: PostgreSQL, DynamoDB, Oracle, ETL,

Data Pipelines.

Observability: CloudWatch, ELK, Datadog.

Programming: Python, Bash, PowerShell.

CERTIFICATIONS

AWS Certified Solutions Architect - Associate

AWS Certified SysOps Administrator - Associate

Microsoft Certified Solutions Associate -

Windows Server

Red Hat Certified System Administrator

(RHCSA)

Red Hat Certified Engineer (RHCE) - Ansible

SENIOR D EVOPS ENGIN E ER

Digify Pte Ltd, Singapore

Oct 2022 - Aug 2023

 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.

 Regularly leveraged GPT models and AI tools to enhance automation, scripting and engineering productivity.

SITE R E LIABIL ITY E NG INE E R

Certain, Inc., San Francisco, California, USA

Nov 2021 - Oct 2022

 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 architecture from 2-tier to scalable

3-tier systems.

 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.

FREEL A NCE TE C H NICAL WOR K AND CO N S ULT AN CY

Self-employed, Dhaka, Bangladesh

Jul 2019 - Nov 2021

 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.

SENIOR LEAD E NGINEER - C ORE A ND S ERVIC E P RO JECTS, T ECHNOL OGY

Grameenphone Ltd., Dhaka, Bangladesh

Nov 2017 – Jun 2019

 Led large-scale cloud and NFV (Network Function Virtualization) 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 systems.

 Managed multi-vendor, multi-system integrations across critical telecom environments.

LEAD E NGINEER - VO ICE & D ATA S E R VICE OPE R ATION, T E CHNOL O G Y

Grameenphone Ltd., Dhaka, Bangladesh

May 2015 – Oct 2017

 Led operations of mission-critical telecom systems supporting ~70 million subscriber base.

 Directed major initiatives including:

o HLR migration (53M+ SIM, 35M+ subscribers).

o LTE trials and network modernization.

 Managed security audits, vulnerability remediation and IAM systems.

 Provided technical leadership for performance optimization and system reliability.

SENIOR SYSTEM E NGI NE ER - VOICE & DAT A S ERVICE OP E R ATIO N, T E CH NOL OGY

Grameenphone Ltd., Dhaka, Bangladesh

Jan 2012 – May 2015

 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.

EXECUT I V E - R EVEN U E ASSUR ANCE & FR A U D MA N A G E M ENT, T E C H NOLO G Y

Grameenphone Ltd., Dhaka, Bangladesh

Jun 2010 – Dec 2011

 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.