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- have 13+ years of experience in Linux, Android (AOSP and AAOS) and bare-metal development for microcontollers (MCU) - good knowledge of C/C++, Bash, have experience with Java and Python - good knowledge of Git/Gerrit - experience with ARM/x86 architecture - ported different versions of Android OS (starting from 4.0 till 15.0) to TI (OMAP4), Renesas (Gen3) and Qualcomm (Gen3, Gen4) boards - supported Android migration to newer version and developed new userspace features in core (configuration, services), multimedia (audio and video decoding and encoding) and connectivity (wi-fi, bt, gps) domains - was involved in development XEN-hypervisor based system with RTOS, Linux and Android onboard - ported, supported and added new functionality to Yocto-based Linux for Qualcomm, Renesas and Raspberry Pi platforms - wrote from scratch and modified Linux and Android components and services - developed Linux-based platform system update mechanics (OTA)

At Roobykon Software, I specialize in automating, scaling, and optimizing infrastructure and development workflows to help our clients achieve efficient, reliable software delivery. With over 10 years of hands-on experience as a Senior DevOps Specialist, I ensure robust integration and scalable operational environments for every project. Our team is dedicated to empowering companies to build and grow their marketplace businesses with cutting-edge DevOps solutions. 🏆 Area of expertise: • E-commerce (including multi-vendor marketplaces and product/service platforms) • FinTech (payment gateways, escrow systems, and custom financial solutions) • CRM Systems (tailored customer relationship management platforms) • Logistics (marketplaces for delivery, warehousing, and transportation) • Marketplace Development (B2B, B2C, peer-to-peer, product, service, and rental-based platforms using Sharetribe and custom-built solutions) • Travel and Tourism (booking platforms for accommodations, experiences, and tours) • Car Rent and Rental Websites (multi-vendor vehicle rental platforms) • Retail (multi-vendor e-commerce platforms, digital storefronts) • Construction and Real Estate (property listing marketplaces, contractor bidding platforms) • Aviation (charter services, private jet booking platforms) and boat rental (yacht, boats, jet ski) • Entertainment and Social Networking (event booking, ticketing, and social interaction platforms) • Marketing and Advertising (customized marketplaces for ad placements, influencer marketing platforms) • Insurance (platforms for comparing and purchasing insurance policies) • Industrial (B2B marketplaces for industrial goods and services) • Marketplaces for hospitality services, catering, and restaurant supplies • Mental Health and Healthcare (platforms for telemedicine, therapy services, healthcare provider listings) • Management (resource management platforms for HR, procurement, and project collaboration) Got an idea but unsure how to make it happen? We’ll provide tailored solutions to fit any budget and ensure everything is ready to go. With every project, we work as if it’s our own, always prioritizing your success. Buzzwords: Automation Continuous Integration Continuous Deployment (CI/CD) Infrastructure as Code (IaC) Microservices Orchestration Docker Kubernetes Monitoring Logging Containerization Scalability Load Balancing High Availability Disaster Recovery Fault Tolerance Infrastructure Automation Blue-Green Deployment Canary Deployment DevSecOps Secrets Management Immutable Infrastructure Jenkins Ansible Terraform GitOps Incident Management Rollback Auto-scaling EC2 S3 Lambda RDS Elastic Beanstalk CloudFormation ECS Fargate EKS Route 53 CloudWatch IAM SQS SNS CloudFront VPC Elastic Load Balancer (ELB) Redshift DynamoDB AWS Backup AWS CLI CloudTrail Security Groups DNS Management SSL Certificates Hosting Control Panel Domain Management Website Security cPanel Website Backup GoDaddy API Dynos Heroku Pipelines Add-ons Heroku Postgres Heroku Redis Heroku CLI Automated Deployments Buildpacks Git-based Deployments Jenkins CircleCI GitLab CI GitHub Actions Travis CI Pipeline Automation Continuous Testing Continuous Delivery Code Coverage Artifacts Rollbacks Webhooks Build Automation Docker Integration Deployment Automation Serverless Architecture Cloud Infrastructure Virtual Machines (VMs) Networking Configuration Load Balancers Storage Solutions Infrastructure Scaling VPC (Virtual Private Cloud) Network Security Monitoring Infrastructure as Code (IaC) Infrastructure Optimization Marketplace Development Multi-vendor Marketplace Sharetribe Go Sharetribe Flex Custom Marketplace Development Payment Gateway Integration Marketplace Scalability Sharetribe API Marketplace UX/UI Sharetribe Deployment MVC Architecture ActiveRecord Gem Bundler Action Cable RESTful APIs Convention over Configuration Rails Engines Active Job WebSocket Support Background Jobs TDD (Test-driven Development) Sharetribe Customization Sharetribe Expert Sharetribe Flex Sharetribe Go Sharetribe Expert Sharetribe Flex Developer Sharetribe Go Developer New Sharetribe

Key Skills: Operating Systems & Automation: Windows, Linux, Bash, PowerShell Virtualization & Cloud: VMware, Proxmox, Hyper-V, AWS, Azure, GCP Containerization & Orchestration: Docker, Kubernetes, OpenShift CI/CD & Infrastructure as Code: Jenkins, GitHub Actions, Terraform, Ansible Networking & Security: TCP/IP, VPN, DNS, VLAN, DevSecOps, HashiCorp Vault Monitoring & Logging: Prometheus, Grafana, ELK, Loki, Graylog Software Development: .NET Core, Blazor, ASP.NET, Python, FastAPI, Django Databases & Big Data: PostgreSQL, MySQL, Redis, Apache Airflow, Spark, Hadoop IoT & Embedded Systems: STM32, ESP32, Raspberry Pi, FreeRTOS, MQTT, Modbus Cybersecurity & Penetration Testing: Kali Linux, Snort, Burp Suite, SIEM

I'm UNIX/Linux System Administrator and DevOps engineer with 20 years experience. I have in setting up and managing servers, optimizing them for best performance and security aspects. I have expertise with setting up baremetal servers of various brands via IP KVM, IPMI, DELL DRAC, HP ILO. I'm working with virtualization platforms such as - VMWare, XEN, KVM, Microsoft Hyper-V, VirtualBOX. I'm working with cloud solutions as Amazon AWS, Google Cloud, Microsoft Azure I have set up and manage web servers using Apache/NGINX, configure HA clusters by using NGINX, Haproxy. The database servers administration MySQL, MariaDB, Percona, Oracle. Also, I have strong knowledge and experience with Windows Server various editions and Windows Dekstop platforms (Windows 10/11) I have great knowledge and strong experience with VPN technologies OpenVPN, PPTP, L2TP, IPSec, Wireguard. Very good knowledge and experience in troubleshooting.

I help clients solve difficult reverse engineering problems involving Windows software, Android apps, firmware, proprietary protocols, and protected binaries. C, C++, C#, Delphi, Visual Basic. My work focuses on targets that are undocumented, obfuscated, protected, or otherwise difficult to analyze without deep low-level experience. This includes application and APK reverse engineering, native library analysis, driver and firmware research, protocol reconstruction, key and decryption-flow analysis, unpacking, data extraction, and architecture-specific analysis across x86, x64, ARM, and PowerPC. I use IDA, Ghidra, Binary Ninja, Frida, debuggers, and traffic analysis tools where appropriate, but the real value is the ability to reduce uncertainty quickly, isolate the logic that matters, and deliver clear technical findings clients can act on. Typical engagements include recovering undocumented communication behavior, identifying validation or decryption logic, understanding protected binary behavior, and assessing the feasibility and risk of deeper analysis before larger commitments are made. I focus on precision, discretion, clear communication, and practical results.

I have more then 7 years experience in networking (routing,VPN, link reservation(failover), trafic priority etc. ), and more then 15 years of design and develop ERP systems for milk, beer, agro and other production industry. 2017-04-01 MikroTik MTCNA 1704NA7632 2017-04-14 MikroTik MTCWE 1704WE8685 2017-04-28 MikroTik MTCRE 1704RE10039 I love my job and hope you need my skills. I would be happy to communicate with interesting people.