Mohammadhossein S.

Vista Samaneh ASA is a software and financial‑technology provider delivering enterprise‑level digital solutions. The company operates high‑traffic, mission‑critical backend platforms that require automation, observability, and cloud‑native practices. I contributed as a DevOps Engineer responsible for building cloud‑ready infrastructure, ensuring consistent deployments, and improving the reliability of core services. What I Achieved : - Managed Windows and linux servers on production and stage environments. - Engineered Kubernetes‑based environments using Helm and GitOps approaches such as Argo CD, enabling predictable and version‑controlled deployments. - Developed and maintained CI/CD pipelines with GitLab CI and GitHub Actions, reducing manual effort and accelerating release cycles. - Designed a full observability stack with Prometheus, Grafana, Loki, and Alertmanager, improving incident visibility and alert accuracy. - Managed AWS/GCP infrastructure and automated provisioning using Terraform, ensuring fully reproducible environments.

Zibal is an online payment and transaction‑processing platform handling real‑time financial operations. It relies heavily on highly available systems, high‑performance backend services, and precise logging/monitoring infrastructures to support its payment workflow. I worked as a DevOps Engineer focusing on platform modernization, performance improvements, and automation across application and infrastructure layers. As DevOps Engineer, my responsibilities included: - Led a major framework upgrade by migrating the backend from Django 1.11 to 3.7, modernizing architecture and improving performance. - Built centralized logging using the Elastic Stack and implemented monitoring using Prometheus and Grafana. - Configured Alertmanager with Slack integration and severity‑based routing to enhance operational awareness. - Optimized MongoDB and Redis setups to improve system reliability and responsiveness. Automated deployment processes via Jenkins, improving consistency and reducing deployment risks.

Mahsan is a technology and backend‑services provider supporting multiple web‑scale applications. Its infrastructure depends on well‑orchestrated web servers, logging systems, and automation to ensure stability and performance. I served as a DevOps Engineer with a focus on infrastructure automation, log/monitoring platform setup, and internal tooling for engineering teams. What I Achieved: - Automated the configuration and lifecycle management of Nginx, HAProxy, and Traefik using Bash, reducing repetitive operational work. - Deployed and maintained an ELK Stack for centralized logging and analytics. - Authored comprehensive architectural and operational documentation in Confluence, improving onboarding and knowledge‑sharing.

Beroozresaan is a large‑scale online grocery shopping platform created by MTYN. The product serves thousands of users simultaneously and required a modern, scalable, cloud‑native foundation to operate reliably. As a DevOps & SRE Engineer, I was fully responsible for the Kubernetes platform behind Beroozresaan —from initial design to production launch and day‑to‑day reliability. - Built the entire Kubernetes cluster from scratch and successfully launched the platform into production. - Migrated the system from a Docker‑based Java monolith to a microservices architecture running on Kubernetes. - Managed backend and frontend service deployments, rollout strategies, scaling, and health monitoring. - Implemented complete monitoring and alerting for the platform to ensure reliability during heavy traffic. - Ensured the platform remained stable, scalable, and high‑performing as user demand grew.

Mtyn is a tech‑focused startup that built Beroozmart, an online grocery marketplace enabling fast and digital food shopping. The platform relies on microservices, containerized applications, and real‑time operations. I was part of the early DevOps team responsible for stabilizing the platform’s infrastructure, containerizing services, and improving service availability. What I Achieved: - Maintained and optimized Linux servers to ensure consistent uptime and platform performance. - Containerized Java and React applications with Docker and deployed them on Kubernetes, enabling smoother releases. - Improved deployment pipelines and service rollout processes, reducing downtime and increasing reliability.