Максим

Maksym Petryshchak

Senior Frontend Developer · Performance UI · Jamstack (Astro) · AI-Augmented Workflow

Ukraine, Remote
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🔗 https://github.com/PetrischakMaxim
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Telegram: @max_petrischak

Profile

I've been building websites for 7+ years. Most of what I do is marketing sites, landing pages,
content platforms - the kind of work where load speed and clean markup matter more than
flashy frameworks.

My usual stack is Astro, Tailwind, SCSS and GSAP. PageSpeed scores on my projects sit at
95+.

I've spent 5 years at Together Networks doing landing pages at scale, 2.5 years at
Innervate/RevJet making HTML5 ad creatives, and mentored frontend students at HTML
Academy alongside my full-time job for 2.5 years.

Right now I'm running a build for a US construction company (NDA) with Astro, GSAP
animations and Playwright tests. Claude Code is part of how I work every day - I've built
custom agents for Figma-to-code and animation tasks, and I maintain a CLAUDE.md config so
the AI output stays close to how I'd write it myself.

I'm looking for full-time or part-time contracts. Team lead roles interest me, and so does staying
hands-on as a senior IC.

Skills

● Markup & Styles: HTML5, CSS3, BEM, SCSS, LESS, Tailwind CSS. Responsive,
cross-browser.
● Performance: Core Web Vitals, PageSpeed 95+, LCP/CLS/INP tuning, Lighthouse
audits.
● Jamstack / CMS: Astro (SSG), WordPress REST API, Keystatic, PagesCMS, Storyblok
(learning).
● WordPress: custom themes from scratch, ACF, Carbon Fields, WPML, headless setups.
● JavaScript: ES6+, TypeScript, React (used in production at Innervate for internal tools).
● Animation: CSS animations, GSAP - scroll effects, section-level transitions,
micro-interactions.
● Testing: Playwright for E2E and smoke tests.
● Infrastructure: Docker (basic), Netlify, Cloudflare Pages + Functions, CI/CD via
GitHub/GitLab Actions.
● Payments & integrations: Liqpay, Stripe, Zapier, Calendly, Tawk, GA4, Search Console,
tracking pixels.
● AI workflow: Claude Code (daily), Cursor, custom agents (Figma MCP, animation,
content generation), CLAUDE.md configs. Completed Anthropic courses - Claude 101,
Claude Code 101, Claude Code in Action.
● Design tools: Figma, Photoshop, Aftereffects
● Also worked with: Shopify (theme setup, 2 stores), Webflow (3 projects), HTML emails
(table-based).

Work Experience

Freelance Frontend Developer
Sep 2025 – Present | Remote

Working with international clients. I handle the full scope - planning, architecture, code,
testing, deployment. Claude Code and custom AI agents are part of my daily process.

● Building a corporate site for a major US construction company (NDA). Astro, GSAP
animations, PagesCMS, Tailwind, Playwright, Netlify. Currently in pre-production
testing.
● Migrated a marketing site from Webflow to Astro on Cloudflare. Also moved email and
services from Bluehost to Google Workspace.
● Business card site for a Kyiv auto service. Astro, Tailwind, Netlify.
● Custom booking forms and guest data collection for asignatures.mt (luxury apartments,
Malta).
● Running fido2.com.ua as my own product - catalogue, blog, Liqpay payments via
Cloudflare Functions, AI-powered content. 20+ paid orders in the first month after
launch.

Frontend Developer | Innervate (formerly RevJet)
AdTech - dynamic display and video creatives for global ad campaigns

Feb 2023 – Sep 2025 | Remote

● Made HTML5 display and video creatives with data-driven personalisation. Part of the
TAM creative team.
● Tuned creatives for speed and reliability across ad networks and devices.
● Built internal tools and forms in React with the product and design teams.
● Worked through the full delivery cycle with designers, creative leads and PMs.

HTML / Markup Developer | Together Networks Limited

Marketing websites and landing pages at scale.

May 2018 – Jan 2023 | Remote

● Built landing pages and product sites in plain HTML, CSS (LESS, SCSS) and JavaScript.
No UI libraries.
● Made forms, HTML5 banners and email templates. Cross-browser was always the
baseline, not an afterthought.
● Focused on load speed and matching designer layouts exactly.
● Worked directly with designers across several products.

Mentor, Frontend Development | HTML Academy

Sep 2019 – Jan 2022 | Remote

Mentored students in HTML, CSS, and JavaScript on professional frontend development
courses. Conducted code reviews, technical consultations, and СSS layout workshops. Ran this
in parallel with my full-time role at Together Networks.

HTML Developer | Freelance

Jun 2016 – Dec 2017

● Responsive landing pages. Joomla, OpenCart.

Projects

15+ sites shipped end-to-end. Everything scores 90+ on PageSpeed.

● NDA - US construction company. Astro, GSAP, PagesCMS, Tailwind, Playwright,
Netlify. (in progress)
● yourfintech.com - Corporate site + blog. Astro, WordPress REST API (headless),
GraphQL, TypeScript, Docker, CI/CD.
● asignatures.mt - Luxury apartments, Malta. Astro, PagesCMS, custom booking forms.
● fido2.com.ua - FIDO2 security keys catalogue. Astro, PagesCMS, Liqpay, Cloudflare
Functions.
● corporatebylegacy.com - Corporate wellness site. Astro, PagesCMS.
● trafficgold.com, adthorized.com - Marketing sites + blogs. WordPress custom themes,
GA4, Search Console.

Typical freelance scope: client calls, requirements, Figma-to-code, performance audits,
integrations (Stripe, Zapier, GA, Calendly, Tawk), SEO, infrastructure (Netlify, Cloudflare),
CI/CD, deployment.