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
https://imrozzoha.com
imrozzoha@imrozzoha.com
+61449981744
Sydney, Australia
https://www.linkedin.com/in/imrozzoha-
chowdhury
EXPERIENCE
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
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 ARC HITECT
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 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
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 ENGIN EER
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.
FREELA N CE TEC HNICAL WORK A N D CONSULT A NCY
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 EN G INEER - C ORE AND S ERVIC E P ROJEC T S, TEC H N OLOGY
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 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 – 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 N GINE ER - VOICE & DATA S ERVIC E O P ERAT I O N , TEC H NOLOGY
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 A NCE & F R AUD MA NAGEM E N T, TECH N O LOGY
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.
