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DevOps | Systems & Infrastructure Architect | CI/CD | Kubernetes | Windows & Linux Expert Senior DevOps Engineer and Systems Architect with hands-on experience designing, automating, and operating enterprise infrastructure across Linux and Windows environments. Core Competencies: • DevOps & Containers: • 5+ years with Kubernetes (GitOps via FluxCD, ArgoCD), Helm, and advanced Docker use. • CI/CD pipelines using GitHub Actions, GitLab CI, Bitbucket Pipelines, and Azure DevOps. • Strong scripting skills in Bash and Python, solid background in C#. • Linux & web stack (15+ years): • Deep expertise with Apache, nginx, PHP, MySQL (InnoDB Cluster), MariaDB (Galera + MaxScale). • Skilled in managing Elasticsearch, Logstash, Kibana stacks for monitoring and logging. • CI/CD & Automation Projects: • 10+ years with VMware, Hyper-V, Xen, KVM/QEMU. • Delivered complex pipelines for JavaScript/TypeScript and React Native apps, including automated QA and Firebase mobile deployment. • Hands-on with enterprise-grade servers – HP, Dell, with experience in hardware-level diagnostics and lifecycle support. • Built and supported complex virtual infrastructures across hybrid environments. • Windows Infrastructure (20+ years): • Expert in Windows Server 2003–2022, Active Directory, Group Policy, Exchange 2013–2019, and Exchange Online. • Deep experience with Failover Clustering, Network Load Balancing (NLB), MS SQL Server Clusters and AGs. • IT Service Management (ITSM): • Familiar with ITIL, having successfully implemented Incident, Change, and Configuration Management processes in enterprise environments. My pros: • 20+ years of production systems design, implementation and maintenance, from data center to cloud. • A balanced skill set across DevOps, infrastructure, databases, security, and automation. • Excellent communication and documentation skills.

If you’re looking for a senior web engineer or system architect who can deliver reliable, scalable solutions — you’re in the right place. With 20+ years of hands-on experience in web development, backend architecture, and infrastructure, I help businesses build, optimize, and scale their digital products. I’m available for both long-term collaborations and short-term contracts. ⸻ What I Bring to Your Project Backend & Application Development • PHP 7/8 (Laravel, Symfony, Zend, Slim, Yii, CodeIgniter) • Node.js (Express.js, Nest.js, Meteor.js) • REST / SOAP / RPC API development • Mobile app backend architecture • Fintech and payment solutions Cloud & Infrastructure • AWS, Google Cloud, Azure, DigitalOcean, Yandex Cloud • IaaS / PaaS / SaaS architecture • Kubernetes, Docker • CI/CD pipelines, DevOps automation • Linux server administration & monitoring • LAMP / LEMP / MERN / MEAN stacks Integrations & Specialized Solutions • Payment / Email / SMS / Voice gateway integrations • Marketing & transactional mailing systems • GPS tracking & navigation software • OpenStreetMap / OSRM integrations • Video streaming (Flussonic, Wowza, OvenMediaEngine) • Server-side video processing (FFMPEG) • E-commerce (Shopify, Magento, WooCommerce, OpenCart, BigCommerce) • WordPress (themes & plugins) • Sales funnels & custom business logic Frontend • HTML, CSS • React, Vue, Angular Databases • SQL / NoSQL systems Other • Reverse engineering • Performance optimization • Bug fixing & legacy system stabilization • Minor experience in Ballerina / Choreo ⸻ AI-Enhanced Development Workflow I actively use modern AI-powered development tools to increase productivity, accelerate debugging, improve code quality, and speed up delivery — without compromising architecture or long-term maintainability. Within the scope of my technical expertise, AI allows me to: • Prototype faster • Refactor and optimize more efficiently • Detect edge cases earlier • Improve documentation and testing coverage This means faster turnaround times and better results for your project. ⸻ I believe in balancing development speed with long-term product quality. Moving too fast creates technical debt; moving too slow kills momentum. My goal is to deliver clean, scalable solutions — efficiently and responsibly. If this sounds like what you’re looking for, feel free to reach out. Let’s build something solid. Thank you for your time.

I am a highly skilled and certified Senior DevOps Engineer with a passion for building and optimizing robust IT infrastructure and CI/CD pipelines. With extensive freelance experience, I have honed my expertise in deploying and managing cloud-based solutions on Amazon Web Services (AWS) and orchestrating containerized applications with Kubernetes. My journey in the world of DevOps has been marked by a dedication to Infrastructure as Code (IaC) using tools such as Terraform, CloudFormation, and Ansible. I take pride in automating and streamlining processes, reducing deployment times, and enhancing system scalability. I thrive in dynamic, 24/7 environments, where my commitment to high availability and disaster recovery planning ensures mission-critical systems remain resilient. My proficiency in configuring monitoring platforms like Prometheus, Grafana, and CloudWatch ensures real-time visibility into system performance. Task management is a key aspect of my workflow, facilitated by my experience using Jira for efficient project tracking. Moreover, my documentation skills are invaluable for creating clear, concise instructions and fostering knowledge sharing within teams. Certified in various DevOps and cloud technologies, I continually seek to expand my knowledge and stay at the forefront of industry trends. My AWS Cost Management activities demonstrate my dedication to optimizing resources and controlling operational expenses. In summary, I am a results-driven DevOps professional who thrives on tackling complex challenges, fostering collaboration, and delivering innovative solutions. My mission is to empower organizations with the tools and practices necessary for seamless, efficient, and secure software delivery. Let's embark on the journey of innovation and excellence together.

I specialize in managing and optimizing Linux-based infrastructures with over 9 years of experience as a System Administrator. My expertise spans cloud platforms like AWS and Azure, alongside extensive knowledge in automation tools such as Ansible and Terraform. I have successfully supported R&D environments, GPU clusters, and have a strong ability to enhance DevOps workflows. I excel in monitoring systems and providing internal IT support, ensuring seamless operations for businesses. If you need a reliable professional to help streamline your IT processes or optimize your cloud solutions, I am here to deliver effective strategies and practical solutions. Let’s discuss your project and how I can contribute to your success.

Hello! I work as a DevOps Engineer in a finance organization. My goal is always to meet customer's needs and deadline. I am responsible and constantly pursue new knowledge to grow professionally. When working on a project, I intend to fully understand and deliver the results client wants to receive. Please feel free to contact me for any additional info. I look forward to working with you soon. Best regards, Alexandr.

Results-driven Senior backend developer with over 5 years of professional experience in building and optimizing high-load, distributed systems using Golang and .NET. Skilled in microservices, cloud infrastructure (Azure), CI/CD, and performance monitoring. Strong focus on business outcomes and code quality.