170 lines
12 KiB
HTML
170 lines
12 KiB
HTML
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<meta charset="UTF-8" />
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<title>Oleg Proskurin — CV — Lemonio</title>
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<link rel="stylesheet" href="/templates/cv-style.css" />
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</head>
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<body>
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<header class="cv-header">
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<h1 class="name">OLEG PROSKURIN</h1>
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<p class="role"><strong>Senior Full-Stack Engineer & Tech Lead</strong></p>
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<p class="contacts">Remote · GMT+7 (EMEA full overlap, US East AM) · Deel contractor, W-8BEN</p>
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<p class="contacts">
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<a href="mailto:usulpro@gmail.com">usulpro@gmail.com</a> ·
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Telegram <a href="https://t.me/usulpro">@usulpro</a> ·
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<a href="https://www.linkedin.com/in/oleg-proskurin-76784453/">LinkedIn</a> ·
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<a href="https://github.com/UsulPro">GitHub</a> ·
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<a href="https://dev.to/usulpro">Dev.to</a> ·
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<a href="https://focusreactive.com/blog/author/usulpro/">Blog</a>
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</p>
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</header>
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<section class="cv-section">
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<h2>Summary</h2>
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<p>
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Senior Full-Stack Engineer and Tech Lead with 9+ years of production experience across
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Frontend, Backend, Serverless, Node.js, and Headless CMS / eCommerce platforms,
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including 5+ years leading remote projects for US, UK, EU, and AU clients. Built and
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operated at consumer scale on the Sanity-based Tipico US backend (75M+ requests/month,
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122 CMS users). Currently Tech Lead on PrimeUI
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(<a href="https://primeui.com/">primeui.com</a>, launched Feb 2026), an AI-native
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platform built around multi-model orchestration, embeddings-based component matching,
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and a code-export pipeline shipping customer-owned Next.js projects.
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</p>
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</section>
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<section class="cv-section cv-skills">
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<h2>Skills</h2>
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<p><strong>Web & Full-Stack</strong>: TypeScript, Node.js, React, Next.js (App Router, SSR/SSG/ISR). TanStack Start/Router, Vite, Tailwind, shadcn-style design systems. Web performance and accessibility: Core Web Vitals, Lighthouse, WCAG</p>
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<p><strong>AI Engineering</strong>: LLM orchestration and guardrails: multi-model routing, context engineering, prompt caching, schema validation, retry recovery. Embeddings-based retrieval and matching. MCP: custom server development; cross-host agent integration</p>
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<p><strong>Data & Infrastructure</strong>: PostgreSQL, Drizzle ORM, Docker. GraphQL, WebSockets, REST APIs. Vercel, Cloudflare, Serverless & Edge functions</p>
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<p><strong>Headless CMS & eCommerce</strong>: Sanity, Storyblok, Contentful, Payload, Hygraph, DatoCMS. Shopify, Shopify Hydrogen, Crystallize, Stripe. Content modeling, multi-environment publishing, large-scale migrations</p>
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</section>
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<section class="cv-section">
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<h2>Experience</h2>
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<article class="cv-job">
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<div class="cv-job-header">
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<span class="company">PixelPoint Ltd.</span>
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<span class="role">Tech Lead & Senior Full-Stack Engineer, PrimeUI</span>
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</div>
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<div class="cv-job-meta">
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<span>France · Remote</span>
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<span class="dates">Feb 2025 – Present</span>
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</div>
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<p class="cv-job-desc" style="font-style: normal;">
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PrimeUI (<a href="https://primeui.com/">primeui.com</a>, launched Feb 2026) is an
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AI-native platform for generating production-ready websites, spanning Studio web app,
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public API, MCP server, CLI, and code-export pipeline. Sole full-time engineer on the
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project, owning roughly 70% of platform architecture across all surfaces.
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</p>
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<ul>
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<li>Owned ~70% of platform architecture end-to-end across Studio web app (TanStack Start, React, TypeScript), Node.js server runtime, public API, MCP server, CLI, code-export pipeline, and component registry.</li>
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<li><strong>Architected the AI generation and matching layer</strong>: multi-model orchestration via Mastra + Vercel AI SDK (10 agents, 17 workflows) with per-task routing across Claude, GPT, and Gemini; embeddings-based component retrieval over 1,555 chunks (OpenAI <code>text-embedding-3-small</code>) with three-tier fallback from exact key to family bucket to semantic search; prompt caching reaching 73% Gemini context-cache hit rate.</li>
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<li>Built and published the <code>@primeuicom/mcp</code> server on NPM, exposing 25 tools that let any external codebase connect to PrimeUI from inside AI coding environments. Tested and tuned across 6 major coding agents including Claude Code, Cursor, and Codex.</li>
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<li>Designed and shipped the code-export pipeline and CLI. Generates a production-ready Next.js project repo in ~45 seconds, with end-to-end from UI Export to a running local project in ~1.5 minutes. The generated codebase is customer-owned, shipped as a standard Next.js project, pre-configured for 8 selectable AI coding agents.</li>
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<li>Drove the team's AI-augmented development practice from project start. Introduced Claude Code on day one, authored team conventions, led the transition to Codex ahead of public release. Open-sourced <a href="https://github.com/usulpro/codex-bee">codex-bee</a> and <a href="https://github.com/usulpro/epic-loop">epic-loop</a> as tooling spinoffs.</li>
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<li>Cut client-wireframe turnaround at PixelPoint from a week of Figma prototyping to a few hours by deploying responsive prototypes with production-level performance and dynamic interactions instead of static mockups.</li>
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</ul>
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</article>
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<article class="cv-job">
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<div class="cv-job-header">
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<span class="company"><a href="https://focusreactive.com">FocusReactive</a></span>
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<span class="role">Tech Lead & Senior Software Engineer</span>
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</div>
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<div class="cv-job-meta">
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<span>London · Remote</span>
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<span class="dates">May 2019 – Feb 2025 (5 yrs 10 mos)</span>
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</div>
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<p class="cv-job-desc" style="font-style: normal;">International web consultancy for clients in the US, UK, Europe, and Australia.</p>
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<ul>
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<li><strong>Architected the Tipico US backend on Sanity Headless CMS</strong> with 5 publishing environments, 3 datasets, and white-label architecture for core and state teams. Scale: 122 CMS users, 98 document types, 165K+ stored documents.</li>
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<li><strong>Led technical hiring and team development</strong>: designed an assessment mirroring real working conditions, ran 30+ interviews leading to 8 hires, mentored new engineers. Drove team adoption of Claude.ai for research, content, and codebase analysis from 2024 onwards.</li>
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<li>Led migration of 15+ client projects to Headless CMS and commerce platforms (Sanity, Storyblok, Contentful, Payload, Crystallize, Shopify, Hydrogen), restructuring content models and cutting update cycles from weeks to days. Used Claude.ai for inherited-codebase analysis ahead of migration design.</li>
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<li>Built a Claude-based content automation pipeline: JSON translation flow for 190 country-specific Storyblok pages, integrated into publishing and saving ~1 month of manual work.</li>
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<li>Designed and built CMS-KIT, an open-source Headless CMS starter and component library used across 15+ client projects, cutting kickoff from days to hours and accelerating development by ~30%.</li>
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</ul>
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</article>
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<article class="cv-job">
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<div class="cv-job-header">
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<span class="company"><a href="https://github.com/GitNation/live-conferences">GitNation</a></span>
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<span class="role">Senior Software Engineer (Part-time, concurrent)</span>
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</div>
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<div class="cv-job-meta">
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<span>Remote</span>
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<span class="dates">May 2019 – Feb 2025</span>
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</div>
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<p class="cv-job-desc" style="font-style: normal;">Built publishing flow via Slack API and a reusable web framework for conference websites; migrated GitNation conferences to Headless CMS.</p>
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</article>
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<article class="cv-job">
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<div class="cv-job-header">
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<span class="company"><a href="https://osome.com/sg/">Osome</a></span>
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<span class="role">Frontend Developer</span>
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</div>
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<div class="cv-job-meta">
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<span>Singapore</span>
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<span class="dates">Jun 2018 – May 2019</span>
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</div>
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<p class="cv-job-desc" style="font-style: normal;">Built fuzzy-logic search system and advanced UI animations for the corporate-services platform.</p>
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</article>
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<article class="cv-job">
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<div class="cv-job-header">
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<span class="company"><a href="https://www.skipp.dev">Skipp</a></span>
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<span class="role">JavaScript Engineer</span>
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</div>
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<div class="cv-job-meta">
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<span>Moscow</span>
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<span class="dates">Nov 2017 – Jun 2018</span>
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</div>
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<p class="cv-job-desc" style="font-style: normal;">B2B marketplace for Skolkovo Innovation Center (100+ companies); GraphQL subscriptions for real-time chat.</p>
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</article>
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</section>
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<section class="cv-section">
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<h2>Portfolio</h2>
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<p class="cv-portfolio">
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<a href="https://primeui.com/">PrimeUI</a>,
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<a href="https://focusreactive.com/marketfinance-case-study/">MarketFinance</a>,
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<a href="https://focusreactive.com/sanity-platform-case-study/">Tipico-Platform</a>,
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<a href="https://www.iwm.org.uk/membership#membershipModal">IWM membership</a>,
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<a href="https://focusreactive.com/notsoape-case-study/">NotSoApp</a>,
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<a href="https://focusreactive.com/casino-reviews-case-study/">CasinoReviews</a>,
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<a href="https://www.vegasslotsonline.com/">VegasSlotsOnLine</a>,
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<a href="https://www.caleffionline.it/">Caleffy</a>,
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<a href="https://focusreactive.com/hardhat-case-study/">Hadhat</a>,
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<a href="https://focusreactive.com/porchlight-case-study/">Porchlight</a>,
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<a href="https://github.com/GitNation/live-conferences">Gitnation</a>,
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<a href="https://focusreactive.com/blog/">FocusReactive blog</a>,
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<a href="https://rnd.sk.ru/lk/main">Skolkovo R&D Market</a>,
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<a href="https://join.reverse.health/tour/nutrition-monthly-generic-others">Reverse Health</a>,
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<a href="https://www.firsty.app/">Firsty</a>
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</p>
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</section>
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<section class="cv-section">
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<h2>Open Source & Writing</h2>
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<ul>
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<li>Storybook: contributor and steering team member during the 2016–2017 community revival; addon maintainer (storybook-addon-console, 7M+ NPM downloads; storybook-addon-material-ui, 18K weekly).</li>
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<li>AI developer tooling: <a href="https://github.com/usulpro/codex-bee">codex-bee</a>, a wrapper for long-running Codex sessions; <a href="https://github.com/usulpro/epic-loop">epic-loop</a>, a Codex skill solving context degradation in long autonomous coding sessions via techlead/engineer role separation and durable epic state.</li>
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<li>Technical writing: articles on frontend, Headless CMS, and developer tooling at <a href="https://focusreactive.com/blog/author/usulpro/">FocusReactive blog</a> and <a href="https://dev.to/usulpro">Dev.to</a>.</li>
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</ul>
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</section>
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<section class="cv-section">
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<h2>Education</h2>
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<p><strong>Master in Engineering</strong>, Faculty of Electronic Engineering, Moscow Power Engineering University (<a href="https://mpei.ru/lang/en/Pages/default.aspx">MPEI</a>), Russia</p>
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</section>
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<section class="cv-section">
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<h2>Languages</h2>
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<p>English C1 · Russian native</p>
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</section>
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</body>
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</html>
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