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Results-driven WordPress Developer (4+ years experience) with strong expertise in custom theme development, Gutenberg blocks, high-traffic sites, performance optimization, and headless WordPress (REST API / GraphQL). Skilled in building scalable, multilingual, SEO-optimized websites and solving complex UI/UX challenges. Proven ability to collaborate with product teams, designers, and backend engineers to ship fast, reliable, maintainable code. Core strengths: custom Gutenberg blocks, PHP/JS architecture, performance tuning, page speed optimization, security hardening, API integrations, CI/CD workflows. CORE SKILLS Languages: PHP, JavaScript (ES6+), TypeScript, HTML5, CSS3/SASS WordPress: Custom Themes, Custom Plugins, Gutenberg Blocks, WP-CLI, Multisite, ACF, CPTs, WooCommerce Frameworks & Tools: React, Tailwind, jQuery, Composer, Webpack/Vite Performance: Caching, Query Optimization, Lighthouse, Core Web Vitals DevOps: Git, CI/CD, Docker, NGINX/Apache, Cloudflare, Linux Other: SEO technical optimization, Accessibility (WCAG), Internationalization (i18n), API integrations

## I don't take on projects like "make me a professional website for $50" ## Greetings and welcome to my profile! You've landed in the right spot if you're seeking a visually appealing, tidy, and finely-tuned website. I specialize in crafting top-notch websites and I'm genuinely passionate about my work. Additionally, I boast an extensive background of over 8 years in developing and maintaining intricate web-based solutions. I adhere strictly to elevated coding standards, emphasizing modular and reusable code, rigorous testing, and the consistent use of Git in all my projects. Let me provide an overview of my background and expertise: ✔️ Accumulated more than 8 years of adeptness in PHP (OOP) ✔️ Proficient in CMS platforms like WordPress ✔️ Well-versed in frameworks such as Laravel, Angular, React, Flutter ✔️ Familiarity with an array of technologies encompassing CSS(SAAS, SCSS, LESS), HTML, jQuery, AJAX, XML, Javascript, JSON, APIs (paypal, google, facebook, twitter, stripe, etc.) ✔️ Proficiency in various software systems including Windows, Linux, MacOS, git; Photoshop, Figma, PHPStorm, and more I've actively contributed to diverse startups and have a track record of building numerous websites from the ground up. I'm adept at functioning within an Agile team setup and possess hands-on experience with SCRUM methodology. My expertise also extends to automating processes by integrating AI (ChatGPT, etc.). I maintain direct involvement in projects, am open to discussing any solutions, and thrive on generating novel ideas to enhance products. My primary goal revolves around establishing a dependable technical framework to foster the prosperity of your businesses. To ensure top-notch code quality, I utilize efficient tools like Git, and for seamless project tracking, I rely on Trello/Jira/Monday to keep you informed at every stage of development. Weekly availability: Over 30 hours. Availability on Saturdays and Sundays: Occasionally. Adeptness at working under tight deadlines: Absolutely. Best regards, Kateryna

⭐ Top Rated Plus | 100% Job Success | $100K+ Earned 💻 React / Next.js / TypeScript - Modern Full-Stack + AI ✅ 85 Jobs Completed · 2,300+ Hours on UpWork Key Skills: React.js / Next.js / TypeScript / Node.js / JavaScript / API Design / Tailwind CSS / Headless CMS / AI Integration / HTML / CSS I'm a British full-stack web developer with 20 years of professional experience, having started in the industry back in 2005. For the past five-plus years on UpWork I've maintained a 100% Job Success score across 85 completed projects - a record I'm proud of, because it reflects how I work: carefully, communicatively, and with a focus on getting things right the first time. What I build: I specialise in modern web applications built with React, Next.js, and TypeScript. These days that means production-grade apps with proper type safety, sensible architecture, and clean, maintainable code - not just front-ends, but the API layers and integrations behind them too. Whether you need a marketing site that loads instantly, a complex internal tool, or a customer-facing SaaS product, I can take it from brief to deployment. A growing part of my work involves AI and bespoke solutions: integrating language models into existing products, building custom tooling, and helping clients work out where AI genuinely adds value versus where it's just noise. If you have an idea that doesn't fit an off-the-shelf template, that's exactly the kind of project I enjoy most. How I work: TypeScript depth and code quality matter to me. I write code that the next developer - possibly you, possibly someone you hire later - can actually read and extend. I don't cut corners that turn into expensive problems six months down the line. I also take communication seriously. As a native English speaker, I can absorb a brief quickly and ask the right questions early, which saves time and avoids the back-and-forth that derails projects. You'll get clear updates, honest timelines, and a heads-up the moment something needs a decision from you - no surprises. Reliability is the other half of it. When I commit to a deadline, I plan the work to hit it. Clients come back to me because delivery is predictable, and because I treat their project as if the outcome were my own. Best fit for: I'm a strong fit for high-value project builds where quality and dependability matter more than the lowest bid - SaaS products, web applications, AI-integrated tools, and substantial site builds. If you're looking for someone to own a project end to end and deliver it properly, we'll work well together. Thank you for taking the time to read my profile. I'd be glad to discuss your project - feel free to send the details over and I'll come back with honest thoughts on scope, approach, and timeline.

Generalist developers build websites; enterprise engineers build high-availability systems. With over 10 years of experience and a dual Master's Degree in IT, I build secure, high-scale web platforms engineered specifically for the complex data demands of the Energy and Tourism sectors. I specialize in replacing legacy bottlenecks with modern, blazing-fast Laravel, Vue.js, and React architectures. 🎯 RECENT WORK & DOMAIN SPECIALTIES: • AI Feature Integration: Embedding LLMs (OpenAI, Anthropic) and custom ML models directly into Vue.js/React frontends and PHP/Laravel backends. • Energy Infrastructure: Designing data-heavy dashboards, tracking metrics, and processing complex cloud-based calculations. • Tourism & Logistics SaaS: Building multi-tenant booking engines, payment gateway integrations, and real-time inventory management. • Legacy Migrations: Rewriting outdated PHP codebases into highly testable, secure Laravel and AWS-native web applications. 🛠️ PROVEN TECH STACK: • Backend Ecosystem: PHP, Laravel, Python, Nest.js, MySQL, PostgreSQL, MongoDB • Modern Frontend: React, Next.js, Vue.js, Vuex/Redux, TailwindCSS • Cloud Infrastructure: AWS Certified (Cloud Practitioner, Amazon SageMaker) 🎓 EDUCATION & TRUST: • Dual Master’s Degree in Information Technology: ITAM (Mexico) + Institut National des Télécommunications (Paris). • Engineering Principles: Clean Code (SOLID), secure API endpoints, and comprehensive automated testing. Let's turn your complex workflows into a seamless, high-performance web application. Click "Invite" to discuss your project requirements.

You don't hire a Next.js developer to write code. You hire one to make sure your product actually ships, works under pressure, and does not fall apart six months later. Because when it does not ship on time, you lose revenue. When it breaks in production, you lose users. When the codebase is a mess, no developer wants to touch it, and you end up paying for it for months. That is the problem I solve. Over the past few years, I have delivered full-stack Next.js and React projects across multiple industries. A live US-based AI SaaS platform where I shipped 86+ production features, including AI assistant wizards, AWS Bedrock knowledge bases, multi-tenant vendor portals, real-time voice systems, and full billing engines. A financial analytics platform built with Next.js and Supabase with an AI-powered chat feature, giving users instant data insights. A full social platform on Next.js 13 with Better authentication and PostgreSQL with Prisma. A property dashboard with complex data visualisations and third-party API integrations. And more in between. These are not side projects or client demos. These are production systems handling real users, real data, and real business logic every single day. On Upwork: 100% Job Success Score. Top Rated. 8 completed projects. 1,980+ hours logged. On GitHub: 828 contributions in the last year. I am not someone who codes when clients are watching. I code every day. Every client review says the same thing. Clear communication, delivered on time, with quality that went beyond what was promised. What I Build: • Next.js and React Development: Building fast, scalable, production-ready applications using the latest Next.js features, including app router, server components, SSR, and SSG. Whether you need a high-performance SaaS product or a complex data-heavy dashboard, I make sure every page loads fast, every component is clean, and your users get a smooth experience from day one. • SaaS and Multi-Tenant Platforms: Designing and shipping complete SaaS products with multi-tenant architecture, admin panels, role-based access control, real-time data, and billing systems built to scale. I have taken products from architecture decisions on day one, all the way to live deployment, so you are not patching problems together six months later. • AI and LLM Integration: Adding real AI value where it makes sense using OpenAI, Anthropic, Google Gemini, AWS Bedrock, and voice agent systems. I have built AI assistant wizards that cut onboarding from hours to minutes, knowledge bases that give AI agents real business context, and voice systems that handle live customer interactions. I do not add AI for its own sake. I add it where it genuinely makes your product smarter. • Backend and API Architecture: Building secure, well-structured backends using Node.js, tRPC, PostgreSQL, Prisma, Supabase, and REST APIs. Clean database design, background jobs, webhooks, and third-party integrations handled properly so your system holds up when real traffic hits. • Full Project Delivery: Taking your project from initial planning through to deployment and handoff with clean, documented code. No disappearing after launch. You get a developer who is accountable from the first conversation to the final commit. ⭐⭐⭐⭐⭐ Recent Client Feedback: “I had a great experience working with Ehtisham. He is a skilled and reliable web developer who understands requirements clearly and delivers high-quality work on time. Communication was smooth, and he was always responsive to feedback and revisions. I highly recommend him for any web development project.” “Great experience working on this project. The communication was clear, the work went smoothly, and everything was handled professionally. I’d be happy to collaborate again.” "Working with Ehtisham was a great experience. He communicated clearly, delivered everything on time, and the quality often exceeded expectations. I really valued his proactive problem-solving and helpful suggestions that improved the final result. Professional, reliable, and highly recommended." Want to know exactly what it takes to build your product right? Message me. Or book a $10 consultation call, 30 minutes, straight answers. Core Skills: Next.js, React.js, TypeScript, JavaScript, Node.js, Express.js, tRPC, REST API, GraphQL, PostgreSQL, MySQL, MongoDB, Supabase, Prisma, Redis, AWS Bedrock, AWS S3, OpenAI API, Anthropic API, Google Gemini, VAPI, Twilio, Stripe, Better Auth, Tailwind CSS, Chakra UI, Shadcn UI, Vercel, SaaS Development, AI Integration, AI Agents, LLM Integration, Voice AI, Multi-Tenant Architecture, Full-Stack Development, Web Application Development, Shopify API, Laravel, API Integration

📣 FREE technical consultation (details below) 🐻 Proud UC Berkeley graduate (Applied Mathematics & Economics) and an entrepreneurial, reliable full-stack software developer with broad expertise across modern technologies (listed below). 💪💪💪 With experience as: • Full-Stack Team Lead at Camping World, a publicly traded company • Lead Technical Teaching Assistant at Hack Reactor, a leading software engineering bootcamp • Founder of Atini Studio, a high-performance software development agency With years of experience working with clients and leading engineering teams, I prioritize accountability, clear communication, and efficient execution. 🌈🌈🌈 I’m the founder of Atini Studio, a vibrant software development agency and a team I like to call software doctors: highly skilled engineers and creative UI/UX designers who diagnose, fix, and elevate digital products. ⌨️⌨️⌨️ What I help clients with: 📌 MVP development for startups 📌 Full-stack web applications 📌 Cross-platform mobile apps 📌 AI-powered features & integrations 📌 Clean implementation from Figma to production 📌 API integrations (Stripe, OpenAI, Google, Zoom, etc.) 📌 Performance optimization 📌 Technical architecture planning 📌 Product roadmap & scaling strategy We also leverage AI internally to accelerate development workflows and improve efficiency, so you get faster delivery without sacrificing quality. 🧩 Complimentary Technical Consultation Not sure how to move forward with your product? I can help you clarify: • The right tech stack • MVP scope • Timeline and budget expectations • System architecture decisions • Whether your current product is built correctly I offer a complimentary strategy session to help you create a clear and practical execution plan. 💻 Tech Stack: • Front End JavaScript | TypeScript | React | Next.js | React-Native | Angular | Vue.js | Tailwind CSS • Back End Node.js | NestJS | Python | Django | PostgreSQL | MongoDB | MySQL | ORM | GraphQL • API Integrations ChatGPT / OpenAI | Stripe | Google | Zoom | and more... • DevOps Amazon Web Services (AWS) | Firebase/GCP(Google Cloud Platform) | Azure | Docker • Testing Jest | Mocha | TDD • Developer Tools Git | npm | Webpack | Babel | Agile Methodology | Nginx • Design Adobe XD | Figma