IMROZZOHA CHOWDHURY
Senior Staff DevSecOps & Platform Engineer | AWS | Kubernetes | AI-Powered Systems
(RAG, Multi-Agent) | API Platforms (Kong) | Bedrock
ABOUT ME
Technology engineer with 16+ years’ experience spanning telecommunications, SaaS and
enterprise banking, across multiple global markets, evolving from operating mission-critical
systems at national scale to modernising complex enterprise platforms and building AI-
driven solutions. Brings a rare combination of infrastructure depth, architectural thinking and
hands-on engineering, with a track record of solving complex technical challenges,
improving engineering efficiency, strengthening security and delivering measurable business
values. Combines proven production reliability and enterprise integration experience with a
forward-looking approach to AI-assisted software engineering, connecting traditional
enterprise technology with intelligent, automated systems to drive meaningful innovation.
CONTACT
https://imrozzoha.com
imrozzoha@imrozzoha.com
+61449981744
Sydney, Australia
https://www.linkedin.com/in/imrozzoha-
chowdhury
EXPERIENCE
SENIO R STAFF DEVSECOPS ENGINEER
Tata Consultancy Services (TCS), Sydney, Australia
July 2026 – Present
▪ Consulting to Commonwealth Bank (CBA) in CommBiz Platform Engineering, driving
secure CI/CD modernization and test-environment delivery across a large banking
service estate.
▪ Serve as the go-to engineer for GitHub Actions build issues across a bank-priority
migration of a 120+ repository CommBiz estate from TeamCity to GitHub Actions
(with Octopus Deploy retained for releases) — keeping delivery squads unblocked
and releases on track.
▪ Drive migrated services through validation from test to production sign-off, and
clear the dependencies needed to retire the legacy CI platform.
▪ Onboard teams and services onto the engineering Golden Path — standardized,
secure-by-default CI/CD templates and guardrails — raising consistency and
reducing setup effort across the estate.
▪ Troubleshoot and resolve build and deployment blockers across squads as they
arise — including recovering a production-blocking build by root-causing an SSO /
.NET framework regression.
▪ Embed DevSecOps across the program — pipeline security, secrets and supply-
chain controls — accelerated by AI-assisted engineering (GitHub Copilot, Claude,
GPT).
▪ Delivered a cloud-native Virtualised Test Environment on AWS ECS Fargate, giving
teams on-demand, isolated integration testing.
SENIO R PL ATFOR M E NGINEE R ( S E N IOR S T AFF D ATA EN G I NEER @ CB A )
Synechron, Sydney, Australia
January 2025 – June 2026
▪ 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.
▪ Delivered ~AUD 240K annual cost savings by replacing external SaaS with internally
deployed semantic platform
▪ 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
EDUCATION
THE A U S T R ALI A N N A TIONAL
UN I V E R S I TY (AN U ) , 2009
Master of Information Technology Studies
MONA S H U N IVER S I T Y , 2 0 0 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 ADES H (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 E R / IT A R CHITE C T
NCS Group, Singapore
September 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.
SENIOR D EVOPS ENGIN E E R
Digify Pte Ltd, Singapore
October 2022 – August 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 ENGIN EER
Certain, Inc., San Francisco, California, USA
November 2021 – October 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.
FREELA N CE TEC HNICAL WORK A N D CONSULT A NCY
Self-employed, Dhaka, Bangladesh
July 2019 – November 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 EN G INEER - C ORE AND S ERVIC E P ROJEC T S, TEC H N OLOGY
Grameenphone Ltd., Dhaka, Bangladesh
November 2017 – June 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 N GINEER - VO ICE & D A TA S E R VICE O P E RAT I O N , TECHN O L OGY
Grameenphone Ltd., Dhaka, Bangladesh
May 2015 – October 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 N GINE ER - VOICE & DATA S ERVIC E O P ERAT I O N , TEC H NOLOGY
Grameenphone Ltd., Dhaka, Bangladesh
January 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 A NCE & F R AUD MA NAGEM E N T, TECH N O LOGY
Grameenphone Ltd., Dhaka, Bangladesh
June 2010 – December 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.
