Available for platform & cloud infrastructure roles

Hi, I'm Atonu Saha.
I build reliable cloud platforms.

DevOps / Platform Engineer & Red Hat Certified Architect (Level IV) with 7+ years designing, automating and operating enterprise-grade Kubernetes, OpenShift and high-availability infrastructure.

Contact me View experience
0+ Years experience
0+ Red Hat certifications
0 RHCA level
atonu@platform:~ 
$ kubectl get nodes
NAME            STATUS   ROLES           AGE
master-01       Ready    control-plane   412d
master-02       Ready    control-plane   412d
worker-0[1-9]   Ready    worker          390d

$ oc whoami
atonu-saha  # RHCA Level IV

$ whoami --skills
Kubernetes · OpenShift · Ceph · Ansible · GCP
Argo CD · Helm · VMware · Proxmox · PCI DSS

$ ▌
01

Professional Summary

I'm a DevOps / Platform Engineer and Red Hat Certified Architect (Level IV) with over 7 years of experience managing enterprise infrastructure and production operations.

My core strength lies in virtualization, cloud, and Kubernetes/OpenShift administration along with high-availability systems. I have hands-on experience supporting mission-critical applications and maintaining infrastructure aligned with PCI DSS security standards.

From multi-master Kubernetes clusters to distributed Ceph storage and GitOps-driven delivery, I focus on building platforms that are reliable, secure and scalable.

  • ◆ Red Hat Certified Architect (RHCA) — Level IV
  • ◆ 7+ years in enterprise infrastructure & DevOps
  • ◆ Kubernetes & OpenShift multi-cluster administration
  • ◆ High availability, clustering & distributed storage
  • ◆ PCI DSS compliance & Linux security hardening
02

Core Competencies

⎈

Platform Engineering

Kubernetes (multi-master) OpenShift OKD Docker Podman Virtualization
⟳

Automation & CI/CD

Argo CD GitOps Ansible Helm Kustomize Shell Scripting
☁

Infrastructure

Linux Google Cloud VMware vCenter/ESXi Proxmox Ceph SAN/NAS (NetApp, IBM)
🛡

Network & Security

PCI DSS Linux Security HA Clustering Load Balancing Proxy Solutions Physical/Virtual Networking
03

Work Experience

Jun 2026 – Present

Sr. DevOps Engineer, Level-II

Cloud Omnium Limited (A Concern of VivaSoft Limited), Dhaka

  • Manage and support enterprise container platforms including OpenShift, OKD and upstream Kubernetes clusters for production workloads.
  • Design, deploy and maintain highly available Kubernetes and OpenShift environments for scalable application hosting.
  • Administer and optimize Ceph storage clusters for reliable, distributed and fault-tolerant storage.
  • Ensure security hardening, compliance and best practices across platforms and infrastructure.
  • Support CI/CD workflows and deployments using Helm, Kustomize and Kubernetes-native tools.
Feb 2023 – May 2026

System Administrator (DevOps / Platform Engineering Focus)

Information Technology Consultants Public Limited Company (ITCPLC), Dhaka

  • Managed end-to-end production operations for enterprise data center infrastructure.
  • Designed and deployed highly available multi-master Kubernetes clusters.
  • Administered VMware vCenter and Proxmox virtualization integrated with SAN storage.
  • Ensured OS security compliance aligned with PCI DSS standards and hardened container images from source.
  • Managed installation, migration and support of enterprise financial applications including Tranzware.
Jan 2022 – Feb 2023

System Support Engineer (Linux, Virtualization & Storage)

Thakral Information System Private Limited, Dhaka

Jan 2021 – Dec 2021

Junior System Engineer

Spectrum Engineering Consortium Limited, Dhaka

Dec 2018 – Dec 2020

Assistant System Engineer

Shamim Enterprise (Pvt) Ltd, Dhaka

04

Certifications & Training

Vendor Certifications

RHCARed Hat Certified Architect (RHCA) — Level IV
CKACertified Kubernetes Administrator
GCPGoogle Cloud Associate Cloud Engineer
GCPGoogle Cloud Professional Cloud Architect
RHSpecialist in OpenShift Automation & Integration
RHSpecialist in OpenShift Virtualization
RHCertified OpenShift Administrator
RHSpecialist in Containers
RHSpecialist in Linux Security
RHSpecialist in Linux Diagnostics & Troubleshooting
RHSpecialist in High Availability Clustering
RHSpecialist in Gluster Storage
RHSpecialist in Virtualization
RHCECertified Engineer (RHCE) v8 — Ansible
RHCECertified Engineer (RHCE) v7 — Server Management
RHCSACertified System Administrator
Verify on Credly →

Training Without Vendor Certification

Red Hat OpenShift Developer II (DO288) v4.14 CKA Certification Course Cisco Certified Network Associate (CCNA) NetApp Certified Data Administrator (ONTAP 9.5+)
05

Education & Achievements

Education

Executive MBA (EMBA)

Brac Business School, Brac University, Dhaka

Passing Year: 2026

Master in Information Technology

IIT, Dhaka University

Passing Year: 2022 · CGPA 3.40 / 4.00

B.Sc. in Electronics & Telecommunications Engineering

East West University, Dhaka

Passing Year: 2018 · CGPA 3.76 / 4.00

Awards & Scholarships

Academic Award: Cum Laude

East West University

Awarded for CGPA of 3.75 and above

Merit Scholarship

East West University

CGPA of 3.9+ across three consecutive semesters

Memberships

Associate Member — IEB

The Institute of Engineers, Bangladesh

Since 2020 · Membership No. A-22931

Associate Member — BCS

Bangladesh Computer Society

Since 2020 · Membership No. AM-14745
06

Let's work together

Have a platform, cloud or infrastructure challenge? I'd love to hear about it.

✉ Email hello@atonu.io ☎ Phone +880 1707-141577 ✔ Credly credly.com/users/atonu
Send me an email