Vetted full stack & backend engineers capable of delivering Netlify solutions
Khmelnytskyi, Ukraine
Full-Stack Developer, Fractional CTO — Websites, Apps, Servers, Databases, AI, SEO & QA
Full-stack developer working across the entire stack — websites, apps, servers, databases, AI integrations, SEO, and QA. Languages & Core: writes code in JavaScript, TypeScript, Python, PHP, Go, and Rust. Architects scalable systems for large-scale projects. Frontend & Interfaces: builds websites and web applications with React and Next.js. Crafts responsive interfaces with Tailwind CSS, Radix UI and Shadcn, adds smooth animations with Framer Motion, and interactive charts with Recharts. SEO Audit & On-Page Optimization: semantic keyword research, resolving technical indexing issues, and optimizing page load speeds. Structures page architecture, meta tags, and multi-language support (i18n). Copywriting & Content Strategy: writes technical articles, drafts precise content briefs for writers, and develops content plans. QA & Testing: full-cycle testing for websites, web services, and Android apps — manual QA for UI/UX and business logic, plus automated testing with Jest, Vitest, Playwright and E2E. Backend, Cloud & Databases: complex API integrations of any scale. Builds servers with Node.js (Express, Fastify). Works with PostgreSQL, MySQL and MongoDB, ORMs (Prisma, Drizzle), and cloud infrastructure (Supabase, Firebase, Cloudflare). Browser Extensions & Automation: develops Manifest V3 browser extensions for Chrome, Edge, Firefox and other browsers. Builds web scrapers for complex data extraction using Puppeteer and Playwright. AI & Intelligent Agents: builds custom AI agents and integrates LLMs from OpenAI, Google Gemini, and Anthropic Claude via API, including Claude Code setups. Servers & DevOps: Linux (Ubuntu) and VPS administration — setup, updates, real-time monitoring, secure process isolation, Nginx, PM2, and CI/CD deployment via GitHub Actions. Telegram Bots: develops advanced Telegram bots (Telegraf, Grammy) integrated with AI, payment gateways, Google Sheets, and crypto exchanges. Desktop Applications: builds cross-platform software for Windows and macOS using Electron and Rust. Additional expertise: site development and customization with WordPress and Astro.
AI & Distributed Systems Architect | Enterprise AI, RAG, Cloud, Blockchain | Advisory & Fractional Leadership
AI and distributed systems architect providing advisory and fractional leadership on enterprise AI, RAG pipelines, cloud architecture and blockchain-backed data systems.
Khmelnytskyi, Ukraine
Senior Backend Engineer | AI Engineering | PHP, Python, LLM Applications
Senior backend engineer working across PHP and Python, with a growing focus on AI engineering: building LLM-powered application features on top of existing backend systems and APIs.
CTO & Founder at Punch AI | Building Software Harnesses for AI-Powered Development | PhD Student in Software Engineering
CTO and Founder at Punch AI, building software harnesses that make AI-powered development safer and more reliable. PhD student in Software Engineering, bridging applied AI engineering with academic research.
Web development agencies routinely quote $150 to $250 per hour for hosting configuration and deployment pipelines. Within that fee structure, 50% to 65% subsidizes sales commissions, account managers, project coordinators, and idle bench time. When a project suffers from a broken build, a missing publish directory, or a 404 routing loop, the issue passes through account management before reaching an engineer.
Working directly with an independent Netlify engineer removes this communication friction. Technical specifications and deploy logs are reviewed directly by the engineer editing the netlify.toml configuration or writing Edge Functions. Scope corrections happen in real time, and deploy previews are verified directly against production requirements without multi-week onboarding delays.
| Engagement Factor | Traditional Agency | ProofDevs Independent Senior |
|---|---|---|
| Hourly Rate | $150 – $250 / hr | $45 – $95 / hr |
| Initial Overhead | Account managers, sales calls, discovery retainers | Direct technical discussion with the engineer |
| Minimum Commitment | $5,000 – $10,000 monthly retainer or 40h minimum | None (book a 3-hour fix or weekly sprint) |
| Turnaround Time | 2 – 4 weeks for onboarding and ticketing | First deploy verified in staging within 24 – 48 hours |
| Infrastructure Ownership | Agency-managed Netlify team and locked DNS | 100% client team, Git repository & DNS ownership |
Netlify streamlines Git-triggered static delivery, but complex production deployments present specific architectural constraints. AI website generators (Claude, v0, Lovable) export source trees that run in local preview environments but fail on static CDNs due to hardcoded local endpoints, missing build commands, and unhandled client routing.
Senior Netlify engineers diagnose these failures directly at the build and edge layer. When a Single Page Application (SPA) built with React Router, Vue, or Vite is deployed, client-side route paths do not exist as physical HTML files on the CDN. Without an explicit rewrite rule returning status 200, every hard refresh or shared link results in a 404 Page Not Found error.
Edge runtime execution introduces another tier of architectural consideration. Edge Functions run on Deno V8 isolates at network edges with strict execution budgets (typically sub-50ms). Running large Node.js dependencies or unbounded database queries within an Edge Function leads to worker timeouts and degraded Core Web Vitals.
Production Netlify infrastructure relies on Netlify CLI, declarative netlify.toml configuration files, Edge Functions, Netlify Forms, and context-specific environment variables. Inexperienced developers often configure redirects and headers manually through the web UI instead of version-controlled files, creating drift between staging and production branches.
A senior engineer codifies all routing, caching headers, and build plugins into netlify.toml. This guarantees that branch previews, deploy previews on pull requests, and production releases execute identical build and security configurations.
Architecture Rule: Context-Scoped Secrets & Build Isolation
Never commit API keys or production secrets to Git repositories or public netlify.toml files. Senior engineers scope environment variables strictly per deploy context (Production, Deploy Previews, Branch Deploys) within Netlify Site Settings, preventing test keys from leaking into production or staging environments from accessing live payment gateways.
Engagements on Netlify range from urgent deploy diagnostics to multi-domain infrastructure migrations. Documenting concrete engineering hours enables founders and technical leads to forecast delivery timelines and capital allocation.
Independent Netlify engineers on ProofDevs set transparent hourly rates between $45 and $95 per hour based on system architecture and backend requirements. Compared to conventional digital agencies charging $150 to $250 per hour, this delivers a 60% reduction in total development cost.
Migrating dynamic marketing websites to Netlify-hosted static frontends delivers immediate return on investment. Replacing a dedicated cPanel or AWS EC2 server ($80–$250/month) with Netlify's global CDN tier reduces hosting overhead to $0–$19/month while eliminating server maintenance, security patching, and vulnerability management.
Clients retain 100% legal ownership of all Git repositories, netlify.toml configuration files, custom serverless functions, and DNS records upon milestone completion. No proprietary platform lock-in or agency proxy credentials are enforced.
Four architectural patterns dominate Netlify deployments: plain static HTML/Vite for low-maintenance frontends, Next.js with the Netlify Next Runtime for full-stack React, Astro for content-heavy sites needing zero client JS by default, and monorepo configurations for multi-app architectures. Static Vite frontends compile in under 45 seconds and cost $0 in runtime compute, making them the standard choice for AI-generated applications.
Server-Side Rendering (SSR) via Next.js or Remix requires the Netlify Next.js Runtime, converting dynamic routes into AWS Lambda functions under the hood. While this enables dynamic database rendering, it introduces cold starts of 200–500ms and requires careful cache-tag tuning. Astro strikes a middle ground: static HTML output by default with islands of interactive React components only where strictly required.
| Architecture | Typical Build Time | Runtime Latency (TTFB) | Pick It When |
|---|---|---|---|
| Static Vite / Plain HTML | 15 – 45 seconds | 15 – 35 ms (Edge CDN cache) | AI-generated sites, SPAs, landing pages, tools with client-side API calls |
| Next.js + Netlify Runtime | 60 – 180 seconds | 180 – 450 ms (Serverless SSR) | Dynamic dashboards requiring server session validation and database SSR |
| Astro Static + Islands | 20 – 60 seconds | 20 – 40 ms (Pre-rendered Edge) | Content-heavy blogs and marketing portals requiring high Core Web Vitals |
| Monorepo (Turborepo/Nx) | 45 – 120 seconds | Depends on target package | Multi-package repositories with shared UI libraries and distinct apps |
Host migrations fail most frequently on three oversights: unmapped legacy URLs producing 404 traffic drops, premature DNS changes before SSL certificate provisioning, and missing environment variables causing production crashes. A senior engineer audits all existing routing tables, verifies netlify.toml redirect maps, and stages the entire application on a *.netlify.app preview domain before touching DNS records.
Cutover follows a verified zero-downtime sequence: lowering DNS TTL values 48 hours in advance, provisioning Let's Encrypt SSL certificates while traffic still flows to the old host, and confirming propagation across international resolvers using dig and global DNS checkers. The prior hosting environment remains active until log verification confirms 100% traffic resolution on Netlify.
Before quoting any project, a senior engineer reviews repository access, the failed deploy log URL, and the current netlify.toml file. In 2 to 4 hours, an audit uncovers the exact defect: misconfigured base directories, build commands failing on Node.js version mismatches, hardcoded localhost URLs in compiled bundles, or build cache corruption.
Complete rebuilds are recommended only when the existing codebase contains deeply nested build chains without lockfiles, unmaintained dependencies with critical security advisories, or unversioned manual edits performed directly in the Netlify web UI. In all standard scenarios—such as AI exports from Claude or Lovable—the existing codebase can be stabilized and deployed cleanly within 3 to 10 hours.
Audit Rule: Read the Build Log First
Never attempt to fix a failed Netlify deploy by pushing repeated trial-and-error commits. The Netlify deploy log isolates the failure point with exact line numbers, identifying whether the failure occurred during dependency installation (npm install), compilation (npm run build), or artifact publishing.
Senior Netlify candidates stand out during initial technical evaluations: they ask for the failed build log URL before providing an estimate, identify the correct publish directory from your framework's package.json, and explain why client-side routing requires status 200 rewrites instead of 301 redirects. Incompetent candidates suggest redeploying repeatedly, request account passwords instead of team invites, or confuse DNS propagation with build failures.
A 3-to-5-hour paid trial task provides definitive proof of engineering capability. Provide the candidate with a test repository that mirrors your failure scenario (for instance, a Vite project exporting to dist with a missing _redirects rule and a hardcoded localhost API reference). Ask the engineer to configure netlify.toml, achieve a green production build, and submit a pull request with an explanation of every setting modified.
You will receive matches with two to four available senior specialists within 2 to 4 hours of submitting your project description and deploy requirements.
Hourly rates range from $45 to $95 per hour, set directly by each independent engineer based on their specialization in build optimization, Edge Functions, or framework migrations.
Yes. Over 40% of engagements on ProofDevs are single fixed tasks, such as resolving a blank white page, fixing 404 errors on SPA refresh, or setting up custom domain DNS and SSL.
Hire a dedicated Netlify specialist when you face hosting-specific failures: broken continuous deployment pipelines, edge routing, form spam filtering, or serverless function timeouts. General full-stack developers often lack knowledge of CDN cache-control headers and netlify.toml rewrite rules.
You retain 100% ownership of your Git repository, netlify.toml configurations, cloud functions, and Netlify account credentials upon milestone completion. Payments are billed transparently for approved hours with zero platform markup.
Edge Functions run on Deno V8 isolates at network points of presence close to the user with sub-15ms startup times, ideal for geolocation and auth rewrites. Serverless Functions execute in regional AWS Lambda runtimes with access to standard Node.js libraries.
Static Export (Vite, Next.js export, Astro) is optimal for speed and zero runtime compute costs. Use SSR with the Netlify Next.js Runtime only when server session checks or dynamic database queries are required on every HTTP request.
Emergency deploy diagnostics take 2 to 6 hours; SPA routing, headers, and form integrations take 3 to 10 hours; custom Edge Function development takes 10 to 25 hours; and full platform migrations take 20 to 45 hours.
Yes. An engineer will review your Git repository, read the latest failed deploy logs, audit your publish directory, and deliver a working production deployment, usually within 3 to 8 hours.
Assign a 3-to-5-hour paid trial fixing a broken repository with misconfigured build settings and missing SPA rewrites. Confirm that the candidate produces a green deploy log, valid 200 status codes on inner page refresh, and clean documentation.
Provide Git repository access, the URL of the failing Netlify deploy log, and a Netlify team collaborator invite. Never share your primary account password.
Engineers offer post-launch support windows (2 to 4 weeks) for deploy stabilization, plus part-time monthly retainers (5 to 15 hours/month) for ongoing dependency upgrades, security header audits, and CI/CD maintenance at the same $45–$95/hr rate.
