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I’m a Senior System and Network Engineer with over 18 years of hands-on experience in IT infrastructure, cybersecurity, and cloud environments. As the founder of AOVD Systems, I help businesses and professionals around the world design, secure, and optimize their digital environments — from local servers to global cloud platforms. ⸻ 🔧 What I Do I deliver end-to-end IT solutions that are secure, scalable, and cost-efficient. My core areas of expertise include: • 🖥️ System Administration & Virtualization – Microsoft Server, VMware, Hyper-V, ESXi • ☁️ Cloud & Microsoft 365 Migration – Azure AD, Exchange Online, Intune • 🔐 VPN Configuration & Network Security – IPSec, SSL VPN, SAML, Multi-factor Authentication • 🧱 Firewall & Endpoint Protection – Fortigate, SonicWall, Cisco, Huntress, FieldEffect, Defender for Business • 💾 Backup & Disaster Recovery – Veeam, Nable, Acronis, Anxient • 📈 Network Performance & Monitoring – PRTG, Nagios, ManageEngine, NetFlow Analyzer • 🔄 Managed IT Services & Remote Support – 24/7 monitoring, patch management, SLA-based response ⸻ 🌍 Who I Work With I’ve supported clients across Europe and the U.S., including: • Government and public institutions • Small and medium businesses seeking reliable IT outsourcing • Professional poker players and private clients requiring secure, anonymous, and latency-optimized VPN setups • Teams transitioning from local servers to the cloud or hybrid infrastructure I combine enterprise-level knowledge with a hands-on, personal approach — ensuring speed, security, and discretion at every step. ⸻ 🎯 Why Clients Choose Me • Proven track record of resolving complex infrastructure issues under pressure • Certified expertise across multiple vendor ecosystems (Microsoft, Cisco, VMware, Veeam) • Transparent communication and detailed technical reporting • Tailored solutions — I don’t copy-paste templates, I solve your specific problem “Vladimir fixed in one hour what others couldn’t in three days.” “Professional, responsive, and precise. My systems are finally stable.” ⸻ 🎓 Certifications & Training • Microsoft Certified Solutions Expert (MCSE) – Server Infrastructure • Cisco Certified Network Professional (CCNP) – Routing & Switching • VMware Certified Professional (VCP) – Data Center Virtualization • Veeam Certified Engineer (VMCE) – Backup & Replication • Microsoft 365 & Azure Administrator Associate • Nagios & PRTG Advanced Monitoring Implementation • ManageEngine Suite Training – Endpoint Central & NetFlow Continuous learning is part of my work ethic — I stay updated with the latest in cybersecurity, automation, and cloud technologies to deliver cutting-edge solutions to every client. ⸻ 🚀 Let’s Work Together Whether you need a VPN configuration, network performance audit, or complete IT infrastructure management, I’ll help you build systems that are secure, stable, and future-ready. 📩 Let’s connect — tell me about your IT challenge, and I’ll design a fast, professional, and cost-effective solution.

Linux user since 2001, working System Admin experience since 2008. DevOps Engineering since 2014, but used DevOps and SRE practices before I knew the words DevOps and SRE. Used Software Engineering skills in Linux administration (writing repeatable scripts ) since I started using Linux. Some of my skills and tech I have long experience with: - Linux , CentOS and RHEL, Debian, Ubuntu. Fedora. FreeBSD, Solaris, CoreOS, OpenWRT, IBM AIX, Oracle Solaris, Mikrotik, Terraform, Ansible, GitLab, git, Github, Jenkins, Vagrant, Packer, LXC, LXD, CRI-O, Podman. Docker Swarm Docker Compose, Kubernetes kubespray, kops, kubeadm kubeinit, OpenShift, Knative, Nomad, KubeVirt, AWS, Google Cloud Platform, DigitalOcean, Rackspace, IBM Cloud, Linode, ManageIQ (CloudForms), KVM, Xen, VirtualBox, VMware, oVirt, libvirt, bhyve, Proxmox, Solaris Zones, RH Satellite (Foreman + Katello), MaaS, Juju, Kickstart, Ceph, Gluster. Stratis. OwnCloud. Bash, Python, Ruby, Java, C, Go, Rust, Groovy, Graylog, Prometheus, Nagios, Graphite, Kibana, Fluentd, fluentbit, Icinga, Zabbix, Elasticsearch, Logstash, MySQL, PostgreSQL, MariaDB, Cassandra, CouchDB, Etcd, OpenVPN, pptpd, WireGuard, Istio, nginx, apache gttpd, Tomcat, Jboss, Asterisk, WebRTC Worked with AI companies many years.

I've spent the last decade building and scaling backend systems — mostly PHP/MySQL, but also Node.js, Go, and Python when the job calls for it. Most recently I spent 6 years as Lead Developer at Timewise — an appointment booking and POS platform for salons, gyms, studios, and other service businesses. I was responsible for backend architecture, API development, AWS infrastructure, and DevOps. I built and maintained the core systems that power scheduling, payments, staff management, and reporting. Outside of that, I've built everything from real-time trading systems with WebSocket feeds and live order execution, to full-stack SaaS apps, booking platforms, merchant dashboards, and analytics APIs. What I bring to the table: - Performance diagnosis and optimization — I work by collecting metrics across the request path, isolating the slow part, fixing it, and repeating until it's fast - Database expertise — query optimization, indexing strategies, connection management, schema design (MySQL primarily) - AWS infrastructure — EC2, RDS, load balancers, autoscaling, monitoring, cost management - DevOps — Docker, Kubernetes, CI/CD pipelines, automated deployments - API development — REST and GraphQL, built to handle load - Full-stack when needed — React, TypeScript, modern frontend tooling I communicate clearly and get to the point. I'm used to owning systems end-to-end — I don't need hand-holding to get things done. Tech: PHP, MySQL, Node.js, TypeScript, Go, Python, AWS, Docker, Kubernetes, Redis, GraphQL

Hello! I am an electrical engineer with over 5 years of experience in embedded systems and control engineering. If you need guidance on the best way to frame your electronics project, someone to do your embedded software (firmware) coding, or if you need help tuning a controller, I'd be happy to work with you. My experience: • Embedded software and hardware architecture • Control system design and implementation • Firmware development in C/C++, bare or RTOS • Python scripting • IoT protocols: LTE, MQTT, TCP/IP, HTTP, CoAP, BLE, GNSS • Communication protocols CAN, SPI, UART, I2C • Various boards and MCUs: STM32, TI, AVR, nRF, ESP, Arduino, RPi

I design and develop embedded electronic devices, working across hardware and firmware from initial design to production-ready systems. I work end-to-end: from schematics and KiCad PCB layout to firmware bring-up, debugging, validation, and preparation for manufacturing. Platforms & systems: • ESP32, STM32, nRF52 • C / C++, ESP-IDF, FreeRTOS, Zephyr, bare-metal Wireless & device protocols: • Wi-Fi, Bluetooth LE, Thread, Matter / HomeKit • Sub-GHz RF (433 / 315 MHz), infrared Hardware & production: • Multilayer PCB design in KiCad (fab-ready files, realistic BOMs) • Hardware bring-up, debugging, and validation • Preparing designs for manufacturing and real-world use Mechanical & product design: • Functional enclosure and mechanical part design (Fusion 360) • Design for 3D printing and rapid prototyping • Mechanical integration of electronics into real products Why work with me: • Production-first mindset — not just working prototypes • Strong understanding of hardware–firmware interaction • Clear communication and realistic timelines If you’re building a device and need an engineer who can turn it into a reliable, production-ready product — let’s talk.

I specialize in professional PCB design with a strong focus on signal integrity and power integrity for reliable, production-ready hardware. My experience includes high-speed digital layouts, proper grounding, impedance control, decoupling strategies, and EMI-aware design practices. In addition to hardware design, I develop embedded firmware for STM32 microcontrollers using Embedded C and FreeRTOS, enabling complete hardware–software co-design. I am particularly interested in robust embedded systems, IoT devices, and complex mixed-signal designs.