About me

I am a DevOps & System Specialist currently working at Alpata Yazılım ve Teknoloji and OCTAPULL.

At Alpata, I am responsible for on-premises server setup and management, Ceph cluster deployment, and the maintenance and updates of customer projects running in Kubernetes and Docker Compose environments.

At OCTAPULL, I oversee the maintenance, updates, and operational management of the OctaMeet and OctaPull SFA products in Kubernetes environments.

I specialize in designing and managing hybrid infrastructure spanning on-premises and cloud environments. My core expertise includes Kubernetes, Docker, GitLab CI/CD, GitHub Actions, Linux system administration, Proxmox virtualization, and Ceph storage. I am passionate about building reliable, scalable systems and automating operational workflows.

Learn, exalt, ennoble!

What i'm doing

  • Linux icon

    Infrastructure & System Administration

    I build and manage hybrid infrastructure spanning on-premises and cloud environments, administering Proxmox virtualization, Linux servers (Ubuntu, Debian, Kali), NAS storage, and network security configurations.

  • Cloud icon

    Cloud & AWS Architecture

    I design and implement scalable cloud architectures, combining cloud platforms and on-premises systems into efficient hybrid solutions tailored to project requirements.

  • DevOps icon

    DevOps & CI/CD Automation

    I set up and manage GitLab CI/CD pipelines, GitHub Actions workflows, self-hosted runners, and Nexus Repository Manager. I deploy and orchestrate containerized applications using Docker, Docker Compose, and Kubernetes across development, test, and production environments.

  • Security icon

    Monitoring & Security

    I implement observability stacks with Zabbix, Prometheus, and Grafana, and manage identity and access with Keycloak. I also work with MITMProxy for traffic analysis and maintain firewall and network security configurations.

Certificates

  • Linux Foundation

    Linux Foundation: Introduction to Linux (LFS101)

    Linux fundamentals including command-line usage, filesystem hierarchy, user and permission management, and essential system administration skills.

    Issued: February 07, 2026  ·  Credential ID: LF-cnbs4ta0e3
    View Certificate ↗

  • Linux Foundation

    Linux Foundation: Introduction to GitOps (LFS169)

    GitOps principles and workflows for cloud-native environments, using Git as the single source of truth for declarative infrastructure and application delivery pipelines.

    Issued: February 17, 2026  ·  Credential ID: LF-wex05gxt15
    View Certificate ↗

  • Linux Foundation

    Linux Foundation: Introduction to Kubernetes (LFS158)

    Core Kubernetes concepts including cluster architecture, workloads, services, storage, and the fundamentals of container orchestration at scale.

    Issued: July 19, 2025  ·  Credential ID: LF-j5qzcl1mq1
    View Certificate ↗

  • Daniel lewis

    BTK Academy: Docker Fundamentals

    Docker fundamentals such as installation, testing and deployment of containers as well as in-depth creative and innovative Docker security topics.

    Sertificate No: 8jmhL4dnA9

  • Jessica miller

    BTK Academy: Linux OS in Cyber Security

    Knowledge about security and shell programming on Linux, an open source operating system.

    Sertificate No: kK1hVK6v10

  • Emily evans

    BTK Academy: Version Controls: Git and GitHub

    Git version control system and GitHub used in software development processes.

    Sertificate No: GoDfnkne1p

  • Henry william

    BTK Academy: Rust Programming Language

    Writing secure and flexible code using Rust, fast web development, and taking advantage of multi-core processors with concurrency.

    Sertificate No:zXztaxk2Dl

Daniel lewis

Daniel lewis


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Resume

Experience

  1. DevOps & System Specialist

    Alpata Yazılım ve Teknoloji

    Nov 2025 – Present · Eskişehir, Turkey · Hybrid

    Responsible for on-premises server setup and management, Ceph cluster deployment, and the maintenance and updates of customer projects running in Kubernetes and Docker Compose environments.

  2. DevOps & System Specialist

    OCTAPULL

    Nov 2025 – Present · Eskişehir, Turkey · Hybrid

    Responsible for the maintenance, updates, and operational management of OctaMeet and OctaPull SFA products in Kubernetes environments.

  3. DevOps & System Specialist

    Kloudser

    Jan 2025 – Nov 2025 · 11 months · Ankara, Turkey · On-site

    Worked across both DevOps engineering and system administration, building and managing infrastructure spanning on-premises, hybrid, and AWS cloud environments. Administered Proxmox virtualization platforms and managed Linux (Ubuntu, Debian, Kali) and Windows virtual machines, configured NAS storage systems, maintained physical on-prem servers, and handled network security with OPNsense firewall.

    Actively used AWS services such as EC2, S3, IAM, DynamoDB, SQS, Lambda, API Gateway, and Cognito to design and implement scalable infrastructure and application architectures. Designed and deployed hybrid architectures combining AWS and on-prem systems depending on project requirements.

    Worked on Android Cuttlefish emulator environments, creating sandboxed testing setups, integrating ADB, and implementing MITMProxy for traffic analysis and debugging.

    Set up GitLab CI/CD pipelines, managed self-hosted GitLab runners, and implemented Nexus Repository Manager as a private registry. Deployed and managed applications using Docker, Docker Compose, and Kubernetes. Worked with MinIO and Keycloak as on-premises equivalents for S3-compatible object storage and identity/access management.

  4. DevOps & System Specialist

    OCTAPULL

    Jul 2024 – Jan 2025 · 7 months · Eskişehir, Turkey · Hybrid

    Managed critical infrastructure projects with a focus on scalability and high availability. Spearheaded production environment migrations and orchestrated the deployment of new projects onto client-side on-premise servers. Designed and maintained robust test environments using Kubernetes, Docker, and Docker Compose, while utilizing Nginx for high-performance load balancing and reverse proxy configurations.

    Implemented comprehensive monitoring and observability solutions using Zabbix, Prometheus, and Grafana, including custom dashboards integrated with Jitsi-based video conferencing data. Performed deep-level Linux administration, optimized server resources, managed systemd services, and developed Bash-based automation tools to streamline operational workflows and resolve infrastructure bottlenecks.

  5. Intern Software Engineer

    Anadolu University

    Aug 2023 – Sep 2023 · 2 months · Eskişehir, Turkey · On-site

    Cloud Infrastructure & Server Management: Provisioned and configured virtual servers using AWS EC2 (Ubuntu LTS), establishing secure remote access via SSH, RSA Key-Pairs, and Elastic IP integrations.

    Bash Scripting & System Automation: Developed custom shell scripts including a recursive directory size calculator, a data backup utility using tar archiving, a public IPv4 tracking tool with custom CLI flags, automated RESTful API interactions via curl, and parameterized utility scripts for dynamic number generation and mathematical operations.

  6. Intern Software Engineer

    KONNEKA Information and Communication Technologies

    Sep 2022 – Dec 2022 · 4 months · Ankara, Turkey · On-site

    Linux Administration & Environment Setup: Configured and managed local Linux (Ubuntu) environments with advanced network configurations via Netplan. Utilized SSH and SCP for secure remote server management and customized shell profiles for optimized development workflows.

    Backend Localization & Scripting: Contributed to the company's enterprise Sandbox security product by refactoring and localizing backend Python scripts for international client deployments. Set up development environments using npm, nvm, and apt for Node.js and Python ecosystems.

    Cybersecurity Research: Conducted research on Android malware families (Cerberus, Golden Cup, Defensor ID) and gained practical familiarity with static and dynamic analysis methodologies for identifying malicious behavior in mobile applications.

  7. Intern Computer Technician

    Turkish Republic State Railways Transportation Inc. (TCDD A.Ş.)

    Jul 2017 – Aug 2017 · 2 months · Ankara, Turkey

    IT Support & Troubleshooting: Provided first-tier technical support to institution personnel, resolving hardware and connectivity issues. Diagnosed and maintained peripheral devices and assisted in workstation hardware setup and configuration.

    Data Management (HR): Digitized physical records by accurately migrating sensitive personnel data into Excel and specialized enterprise software. Maintained high attention to detail while handling data entry tasks for the Human Resources department.

Education

  1. Karadeniz Technical University

    Software Engineering

    2019 - 2024

    Bachelor's Program Honors Degree - GPA 3.04/4.00

  2. Gazi Vocational and Technical High School

    Information Technologies

    2014 - 2018

    Major Database Programming, Object-Oriented Programming, Graphic Design, Office Tools, Web Development, Graphic Animations

Contact

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