Versatile DevOps Engineer - able to work in Cloud, scripting, CI/CD, programming, etc.

IONUT-SEBASTIAN BANU

Versatile DevOps Engineer - able to work in Cloud, scripting, CI/CD, programming, etc.

Available to hire

Versatile DevOps Engineer - able to work in Cloud, scripting, CI/CD, programming, etc.

Experience Level

Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
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Language

Romanian, Moldavian, Moldovan
Fluent
English
Advanced

Work Experience

Junior DevOps Engineer at Hewlett Packard Enterprise Romania – Bucharest
July 1, 2022 - March 1, 2024
Created Chef cookbooks from scratch using Ruby for installing and configuring various services and software. Used GitLab jobs and pipelines to deliver and integrate all the code created. Implemented Jenkins jobs and pipelines to automate the process of delivering the products. Automated and implemented PostgreSQL database backup and recovery procedures. Implemented and maintained monitoring procedures for multiple virtual machines and services using Zabbix, Prometheus and Telegraf. Wrote Bash scripts for automating tasks and for gathering various metrics and data used in monitoring. Configured networking configurations for HTTP/Apache webservers. Actively participated in SCRUM meetings and embraced the Agile Workflow.
DevOps Engineer at Onapsis Romania – Bucharest
March 1, 2024 - July 1, 2025
Gained hands-on experience with key cybersecurity concepts for SAP systems, including SAST, DAST, SCA, CVEs/CWEs, and operating system vulnerabilities. Followed industry security best practices and supported the team in defining and implementing standardized secure workflows. Integrated vulnerability scanning tools (Tenable, Veracode, SonarQube) into GitLab CI/CD pipelines using Python and Bash, enabling early detection of code and third-party library vulnerabilities. Supported cloud deployments and release processes using AWS. Improved and maintained the deployment model on a daily basis, working with Linux, Git, GitLab, Docker, Artifactory, Rundeck, and AWS. Designed and developed automation and integration scripts in Python. Debugged and resolved issues in failing CI/CD pipelines and container deployments, ensuring stable and reliable releases. Conducted technical interviews as part of the engineering recruitment process. Participated in customer escalation meetings and actively con
DevOps Engineer at London Stock Exchange Group – Bucharest
July 1, 2025 - Present
Worked on a Global Compliance Framework integrated in GitLab CI, implementing new features and maintaining an internal Security tool used across multiple teams. • Contributed to an in-house Security solution that enforces automated compliance gates for repositories, covering multi-language source code, Infrastructure as Code (IaC), and code quality checks (SonarQube). • Developed, maintained, and enhanced automation scripts using Bash, Python, and JSON/YAML, ensuring reliable execution of compliance and security scans in CI pipelines. • Actively collaborated with internal users through regular calls and support sessions to troubleshoot issues, explain framework behavior, and resolve CI/CD errors. • Improved the tool’s design, usability, and workflow, continuously refining how compliance checks are triggered, validated, and reported. • Integrated and maintained CI/CD security checks to ensure early detection of policy violations, vulnerabilities, and quality issues during the development lifecycle. • Worked with GitLab Issues and Jira to track bugs, enhancements, and user requests, contributing to structured backlog management and delivery. • Assisted teams in adopting and correctly using the compliance framework by providing guidance, best practices, and technical support. • Participated in ongoing optimization of CI/CD pipelines to improve reliability, performance, and developer experience. • Collaborated in a cross-team, Agile environment, aligning security, compliance, and DevOps practices across the organization.

Education

Bachelor of Engineering at University Politehnica of Bucharest
January 1, 2019 - January 1, 2023

Qualifications

Add your qualifications or awards here.

Industry Experience

Software & Internet, Computers & Electronics, Professional Services, Financial Services
    paper Python Log Monitoring Application

    Developed a Python script to parse CSV job logs, calculate job durations using START/END events, and log WARNINGs/ERRORs to a file for jobs exceeding 5/10-minute thresholds, alongside console reporting. Ensured accuracy with a pytest test suite.
    Tools Used: Python, Standard Libraries (csv, datetime), pytest, Bash, Linux (Ubuntu 22.04), VirtualBox, Git

    paper CI/CD Pipeline Automation for Python Web Application

    Implemented an end-to-end CI/CD process where Jenkins pulls code from Azure Repos, handles build/test/packaging, stores artifacts in Nexus, and then utilizes Ansible for automated deployment, server configuration, and application service management on Microsoft Azure.
    Tools Used: Jenkins (Docker), Ansible, Git, Azure Repos, Nexus Repository Manager OSS (Docker), Microsoft Azure (VMs, Networking), Python (Flask), pytest, Bash, Linux (Ubuntu 22.04), VirtualBox.