Дмитрий

Ivanov Dmytro
Phone number: [open contact info](look above in the "contact info" section).
Connection: [open contact info](look above in the "contact info" section), [open contact info](look above in the "contact info" section) https://t.me/vorting1
Portfolio:
BookStack Wiki, Photo Kiosk Backend, matrix-synapse-federation, ansible_create_os, sitemap-crawler
Date of birth: 11.06.1992

Description:
I have been working in IT sphere 10 years, and for the last 4 years, I have been as DevOps Security and AWS Specialist. I, want to clarify that DevOps is not just an engineer but a set of practices, tools, and a culture for automating and integrating processes between developers and IT teams.

Professional skills and abilities:
• Administration of Windows Server 2012-2019, SCCM, RDS, Active Directory, MS Exchange Server.
• Setting up routers, Wi-Fi points (Ubiquiti, Aruba Networks), IP phones.
• Administration of Linux: CentOS, Debian, Ubuntu 20.04. Nginx.
• Administration Zabbix, Grafana, Jira, Confluence.
• Proficient in container orchestration using Kubernetes (K8s), managing deployments, and maintaining containerized applications across a cluster of machines.
• Deploying Kubernetes clusters using Minikube and kubeadm for development environments.
• Configuring Kubernetes networking components such as services, ingresses, and persistent volumes.
• Implementing monitoring and logging with Prometheus and Grafana.
• Implemented CI/CD pipelines for Helm-based projects using .gotmpl templating, custom charts, and GitLab CI generator. Familiar with Helm core library, control structures, and string functions (strip, join, replace, substring, sprintf).
• Configuring security with Kubernetes RBAC (Role-Based Access Control).
• Troubleshooting Kubernetes issues using kubectl to check pod states, view logs, and run diagnostic commands.
• Programming Languages & technologies:
◦ Java/Maven. Ansible (file modules, software package modules, system modules), Bash, Groovy, Golang & Helm templating, Kong.
• Jenkins, TeamCity, Docker, Docker-compose, Portainer, Vagrant. SQL & MariaDB writing requests: DDL, DML, and DCL. Basic knowledge of ArgoCD.
• Work with AWS Services: IAM, CodeBuild, CodeDeploy, CloudFront, Amazon Lightsail, Amazon EC2, Amazon S3, Amazon ECS, EKS, AWS Policy Generator, AWS Lambda, Amazon RDS, Aurora etc.
• Administration of GCP Services: maintaining corporate Docker images using Google Cloud Build, managing instances in Google Compute Engine, and overseeing data storage in Google Cloud Storage.
• Web-tools: Nginx, CertBot, let's encrypt.
• Basic knowledge of protocols (SMTP, POP3, IMAP, FTP, DHCP, LDAP, DNS), OSI model.
• CMS: GIT, Git LFS, BitBucket, GitLab.

Experience
DevSecOpsInc:
Summer 2024 — October 2025| AWS, CloudFormation, CI/CD, Marketplace
• Take responsibility for the Client’s development and production infrastructure on AWS.
• Establishing company-wide best practices (CI and CD pipelines).
• Creating detailed project structure diagrams using draw.io.
• Conducting in-depth analysis of infrastructure and optimizing AWS account expenditures.
• Build and improve automation pipelines for software development lifecycle.
• Participate in systems performance tuning, work on platform high availability.
• Focus on configuration, documentation, optimization, and support of the infrastructure components.
• Technical consultancy for internal and external customers.
• AWS Marketplace Product Registration & CloudFormation Infrastructure:
◦ Led the end-to-end deployment of product on AWS Marketplace, ensuring compliance with AWS listing policies and best practices.
◦ Studied and implemented AWS Marketplace documentation, including product submission, pricing models, and technical validation.
◦ Designed a scalable and cost-efficient infrastructure using AWS CloudFormation, covering EC2 Auto Scaling, RDS, EFS, Cognito, VPC, and IAM policies.
◦ Developed CloudFormation templates for automated deployment, optimizing security, networking, and instance management.
◦ Configured AWS pricing models, including hourly billing and flexible consumption pricing (FCP) for accurate cost projections.
◦ Successfully completed and validated the AWS PLF (Product Load Form) for product registration.

• AWS Cost Optimization & Resource Efficiency:
◦ Conducted in-depth AWS cost analysis across multiple accounts, identifying areas for optimization.
◦ Implemented strategic cost-saving measures, achieving 16.9% and 63.6% reduction in cloud expenses.
◦ Optimized AWS resource utilization, reducing redundant services and improving efficiency.
◦ Analyzed EC2, RDS, and storage usage to eliminate unnecessary costs and enforce cost-effective practices.
◦ Ensured compliance with AWS best practices for cost management and sustainability.

“Cosmonova-broadcast”, DevOps:
2023 - 2024 | Kubernetes, Ansible, GitLab CI, Helm, AWS
• Linux Server Administration on CentOS/Debian/Ubuntu.
• Scripting with Bash and implementing automations with Ansible through YAML playbooks.
• Refactoring Helm charts for nginx builds, optimizing annotation generation logic for nginx ingress, and managing image updates in DaemonSets.
• Debugging Helm charts through comparison of rendered files using helmfile template, conducting unit tests.
• Managing Kubernetes clusters: monitoring component status and debugging pods using kubectl commands.
• Configure AWS CodeBuild to continue running tests despite errors using || true and continue-on-error parameters in the buildspec.yml file.
• Creation of auto-install ISO for Debian 12 via Ansible-playbook with j2 template of preseed.cfg.
• Refactoring Monolithic Infrastructure into Microservices.
• Matrix Synapse Federation Deployment using Docker-Compose.
• Administration of GitLab CE & GitLab-runner: upgrading, troubleshooting.
• Maintenance of CI/CD pipelines via .gitlab-ci.yml.
• Writing documentation of infrastructure services, describing schemes with draw.io or Whimsical for corporate products.

“CodeGym”, DevOps:
2022 – 2023 | Jenkins, Kong, AWS, Ansible
• Linux Server Administration on CentOS/Ubuntu in AWS Environment.
• Configuration and Optimization of API Routing: Implemented Kong routes to efficiently distribute requests to various microservices, ensuring load balancing and enhancing service availability.
• Analyzing and Improving CI/CD Pipelines through Jenkinsfile, writing in Groovy, creating job DSL and shared libraries.
• Administration of GCP Services: maintaining corporate Docker images using Google Cloud Build, managing instances in Google Compute Engine, and overseeing data storage in Google Cloud Storage.
• Scripting with Bash and implementing automations with Ansible through YAML playbooks.
• Participation in team meetings to provide updates and report newly identified issues.
• Working with IntelliJ IDEA, PyCharm.
• Creating architecture schemes of a company at Whimsical.
• Working with Kanban methodology.
• Administration of Proxmox v7.4.

2021 “Newtrex”, Linux admin:
2021 – 2022 | Jenkins, Kong, AWS, Ansible
◦ Administration Linux: Ubuntu 20.04, MacOS.
◦ Worked with services: Zabbix, Graffana, Jira, and Confluence (wrote instructions for working with services). Provided access: 4k, Moodle, OTRS, ldap.
◦ Supported an office of 150 people, prepared conditions of working for employees (created an image via dd), worked with CryptSetup, troubleshot user requests.
◦ Projects: “Migration of working machines to Cato VPN ansible”, “Installing Staff Counter ansible”. - Performed inventory with snipe, Jira Insight.

“Snack Production”, System administrator:
2018 – 2021
Administrated Windows server 2012-2019: created accounts, scheduled maintenance and backup. - Administrated SCCM, RDS, AD, VMware, Hyper-V. Worked with Veeam, Acronis True Image.
◦ Prepared conditions of working for employees: installation, configuration, creation of mail accounts, on servers, troubleshooting requests, work on SLA.
◦ Set up Android phones (flash firmware), IOS phones.
◦ Worked with services and programs: MeDoc, 1c, Liga, LDAP, Client-Banks.
◦ Administrated MFPs and Wi-Fi points.
◦ Cable Management System, performed inventory, support an office for up to 400 people.

“Ukrainian Retail”, L2 Support Engineer:
2016 – 2017

“Good Zone business & relax hotel”, IT duty engineer:
2016 – 2017

“Industrial District Executive Committee”, L1 Support Engineer:
2014 – 2015

Education:
National Metallurgical Academy of Ukraine (NMetAU)
Master’s degree in mechanical engineering
2009-2014

Additional education:

2023 – Основи DevOps та Kubernetes у партнерстві з GlobalLogic
2022 – self education at Pluralsight platform
2021 – EPAM “DevOps Spring Program 2021”
2019 – Hilllel “Java Elementary”
2018 – Hilllel “Introduction Java”
2018 – Level UP “С++ Fundamentals of programming”

Personal qualities: dependable, determined, initiative, versatile, punctual, multitasking, selforganized, eager to learn, team player skills.