DevOps Engineer – Cloud Multi-Instance Isolation, Static Proxy Binding & Auto-Recovery (Pilot Phase)

Job Type: Fixed-Price (Milestone-based) Budget: $250 (Pilot Phase) Experience Level: Expert Job Description We are looking for an experienced DevOps / Systems Engineer to design, deploy, and document a fully virtualized, multi-instance infrastructure running cloud sessions concurrently with zero local hardware or physical phones. We are starting with a Phase 1 Pilot (5 to 10 instances) to test stability, proxy isolation, system density, and automated reboot scripts before scaling up to 200 sessions across distributed nodes. Project Scope & Deliverables: 1. Cloud Server Provisioning: Bullet Deploy cloud nodes (Linux containers or Cloud Mac nodes depending on optimal application efficiency). Bullet Ensure low idle CPU/RAM usage per instance (1 GB–2 GB allocation per session profile). 2. Strict IP & Identity Isolation: Bullet Bind static residential proxies to each virtual instance on a strict 1-to-1 mapping. Bullet Prevent IP leaks, WebRTC leaks, and cross-instance session data contamination. 3. Automation & Crash Recovery: Bullet Build a lightweight supervisor watchdog script (e.g., using PM2, Docker policies, or systemd). Bullet If an instance, browser node, or proxy connection drops, the system must automatically detect the failure and reboot cleanly within 30 seconds. 4. Handoff Documentation: Bullet Deliver simple management commands (or dashboard access) so our team can easily start, stop, restart, or add/remove session credentials. Required Skills: Bullet Linux / macOS System Administration Bullet Docker containerization, VM orchestration, and headless browser automation Bullet Network engineering, residential proxy binding, and anti-leak configuration Bullet Python / Bash / Node.js scripting for automated watchdog monitoring Bullet Cloud platform expertise (Hetzner, AWS EC2 Mac, MacStadium, DigitalOcean, or bare-metal setups) Contract Milestones Bullet Milestone 1: Environment Provisioning & Proxy Isolation ($150) Bullet Deploy test cluster (5–10 isolated instances). Bullet Bind 1 static residential IP per instance with zero IP overlap. Bullet Deliverable/Proof: IP verification check outputs (ipinfo.io) from inside each active instance showing distinct residential IPs. Bullet Milestone 2: Watchdog Automation, 72-Hour Stress Test & Handoff ($100) Bullet Deploy automated watchdog restart scripts. Bullet Run 5–10 concurrent instances for 72 hours continuously to verify memory stability. Bullet Deliverable/Proof: Live test demonstrating that manually killing an instance process auto-restarts it within 30 seconds; handoff documentation provided. Applicant Screening Questions (Must Answer to Apply) 1. How do you configure 1-to-1 static proxy binding per instance to ensure zero IP or DNS leaks between sessions? 2. Which cloud hosting architecture do you recommend for running 200 concurrent sessions at maximum performance per dollar? 3. How do your watchdog scripts handle recovery when a proxy drops or an instance freezes?