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I help businesses automate the repetitive work that eats their week — capturing leads, syncing data between tools, following up, posting content, and connecting every app you use into one pipeline that runs on its own. I'm an n8n and AI automation specialist. If two tools in your business don't talk to each other, or a task gets done by hand over and over, I can almost certainly automate it. Whether you need one clean workflow or an entire backend wired across a dozen apps, I build reliable, fully documented systems with proper error handling — not fragile automations that break silently the moment something changes. WHAT I CAN BUILD FOR YOU: - Workflow & business process automation — n8n (expert), plus Make / Zapier - AI automation & AI agents — OpenAI/GPT & Claude, RAG chatbots, LLM-powered workflows - AI voice agents — inbound/outbound call agents that qualify leads, book appointments & sync to your CRM (Vapi, Retell, Twilio Voice) - CRM automation & lead pipelines — capture, qualify, tag, route & follow up (Follow Up Boss, GoHighLevel, HubSpot, Airtable) - Social media automation — auto-generate and publish content to Facebook/Instagram from your own triggers, with AI-written captions - Multichannel messaging — Twilio SMS, WhatsApp & email automation - API & webhook integrations — connect any tool with a REST API, plus custom code in JavaScript & Python - Document & data automation — DocuSign, PDF/data extraction, Google Sheets, databases RECENT WORK: I built an end-to-end system that runs a client's entire lead-to-contract pipeline: a master webhook routes every CRM event to the right workflow, auto-qualifies and tags leads, syncs email lists, sends SMS, and auto-issues DocuSign agreements. A connected system recovered 1,000+ contacts' missing emails automatically — with zero manual entry. I've also built an AI voice agent that calls leads, qualifies them, and logs results straight to Google Sheets, plus an AI social pipeline that turns a single image upload into a published, captioned post. WHY CLIENTS WORK WITH ME: ✅ Systems that are documented, tested, and built to keep running after handoff ✅ Real business outcomes — fewer dropped leads, faster response, hours saved every week ✅ Fast, clear communication — I respond within hours If you've got a repetitive process, disconnected tools, or data slipping through the cracks, send me a message and let's map out what we can automate.

I have been coding since 2011, amassing extensive experience in software and web development, as well as machine learning engineering. Currently, I am pursuing a Master’s degree at Queen’s University in Canada, focusing on AI, NLP, and LLM applications in the legal field. My professional background includes roles as a full-time employee and part-time contractor in software development, web development, big data engineering, and machine learning engineering.

Successfully developed websites for clients across multiple industries I help businesses and startups build, manage, and scale SaaS platforms with clean, secure, and high-performance web solutions. With 10+ years of hands-on experience in web development and SaaS applications, I specialize in developing custom admin panels, user dashboards, role-based access systems, and backend architectures that are reliable and scalable. I’ve worked with clients worldwide to deliver professional platforms that are easy to manage and built for growth. My focus is on writing maintainable code, ensuring system stability, and creating admin interfaces that simplify operations—so you can focus on growing your SaaS product with confidence. My Expertise Includes: ➜ SaaS Web Application Development ➜ Custom Admin Panel & Dashboard Development ➜ User Management Systems (Roles, Permissions, Authentication) ➜ Backend Development & API Integration ➜ Database Design & Optimization ➜ Secure Data Handling & Access Control ➜ Performance Optimization & Scalability ➜ Admin Panel UI/UX Optimization ➜ System Maintenance, Bug Fixes & Technical Support ➜ Third-Party API & Payment Gateway Integration I focus on high performance, clean architecture, and long-term maintainability. Every project is developed with scalability, security, and usability in mind. Why work with me? 100% attention to detail and clean, maintainable code Fast turnaround with transparent, consistent communication Proven experience building scalable SaaS platforms and admin panels Let’s connect and discuss your project today. Click “Invite” and let’s take your SaaS platform or web application to the next level.

I have more than 8 years of experience designing and developing websites using a variety of technologies for Web Apps and Mobile Apps. To view some of my projects and to get to know me better visit: nk.vercel.app/projects Languages: Javascript, Python and PHP Front-end: React + Typescript, NextJs + Typescript, VueJs , Wordpress + Theme Development Back-end: NodeJs, Django, Flask, Serverless Lambda API: RestAPI, GraphQL Implementation: Monolithic, Microservices, Server-side, Client-side, PWA Mobile: React Native (Android + IOS Development) Database: Postgres, MongoDB, MySQL, Firebase, Firestore, SQLlite Aws: S3, Lambda, Route 51, EC2, Cloudfront, DynamoDB, Amplify, AppSync Version Control: Git, Github, Bitbucket Analytics & Ads: Google Analytics, Google Adwords Adobe: Illustrator, Photoshop, Indesign, AdobeXD

For over 5 years now, I have been a "𝗼𝗻𝗲-𝘀𝘁𝗼𝗽-𝘀𝗵𝗼𝗽" saving my clients 𝘁𝗶𝗺𝗲 and 𝗺𝗼𝗻𝗲𝘆 while building them 𝗳𝗮𝘀𝘁, 𝗰𝗼𝗻𝘃𝗲𝗿𝘀𝗶𝗼𝗻-𝗳𝗼𝗰𝘂𝘀𝗲𝗱 WordPress websites for their businesses. Now that I am here on Upwork, I believe I can be your "𝗼𝗻𝗲-𝘀𝘁𝗼𝗽-𝘀𝗵𝗼𝗽" saving you precious 𝘁𝗶𝗺𝗲 and 𝗺𝗼𝗻𝗲𝘆. As a WordPress Developer, Elementor Website Specialist & Graphic Design Expert with 100+ WordPress projects delivered, from full custom builds to redesigns, WooCommerce stores, and long-term site maintenance. I work across the full stack: design, development, speed optimization, SEO, and ongoing support, so you get one person who can take a project from concept to launch and beyond. Whether you need a new WordPress website, a complete redesign, an Elementor build, a WooCommerce store, a platform migration, brand-aligned graphic design, or help fixing a slow or broken site, I bring both technical depth and creative/design sense to make sure the end result actually converts. 𝗪𝗼𝗿𝗱𝗣𝗿𝗲𝘀𝘀 & 𝗘𝗹𝗲𝗺𝗲𝗻𝘁𝗼𝗿 𝗦𝗲𝗿𝘃𝗶𝗰𝗲𝘀 𝗜 𝗢𝗳𝗳𝗲𝗿 - WordPress Website Design & Development - Elementor Website Design & Elementor Pro Development - Elementor Landing Page Design - Elementor Website Customization & Troubleshooting - Custom WordPress Development & Theme Customization - WordPress Plugin Development & Customization - WordPress Website Redesign & Optimization - WooCommerce Development, Setup & Customization - WordPress Speed Optimization & Core Web Vitals - WordPress SEO & Technical SEO - WordPress Migration (platform-to-platform & host-to-host) - WordPress Bug Fixes & Troubleshooting - WordPress Security, Backups & Malware Cleanup - API Integrations & Custom Functionality - Figma / PSD / Webflow to WordPress Conversion - Ongoing WordPress Maintenance & Support 𝗚𝗿𝗮𝗽𝗵𝗶𝗰 𝗗𝗲𝘀𝗶𝗴𝗻 𝗦𝗲𝗿𝘃𝗶𝗰𝗲𝘀 𝗜 𝗢𝗳𝗳𝗲𝗿 - Brand-Aligned Graphic Design - Website Graphics & Visual Design - Structured Style Guide Creation - Custom Landing Page Design (Elementor) - Responsive, Mobile-First Web Design 𝗣𝗮𝗴𝗲 𝗕𝘂𝗶𝗹𝗱𝗲𝗿𝘀 & 𝗧𝗲𝗰𝗵 𝗦𝘁𝗮𝗰𝗸 Elementor, Elementor Pro, Gutenberg, Divi, WPBakery, ACF, WooCommerce, PHP, JavaScript, jQuery, HTML5, CSS3, MySQL, WordPress REST API 𝗪𝗵𝘆 𝘄𝗼𝗿𝗸 𝘄𝗶𝘁𝗵 𝗺𝗲 - 100+ WordPress websites delivered: full builds, redesigns, bug fixes, and ongoing care - Elementor specialist across both design and development, not just page building - Comfortable on both front-end and back-end: design, PHP customization, and plugin/theme development - Accessibility-focused, mobile-first design approach - Available for long-term, short-term, hourly, or fixed-price contracts Send me a message, click Invite to Job, or hit Hire Now. Let's build something that works as hard as you do.

Hey 👋 I'm Oleksandr, and I build production-ready React applications, turning complexity into clarity - from investment strategy platforms with large-scale data visualization to healthcare applications serving thousands of users. I've worked with hedge funds, healthcare platforms, and enterprise clients to: • Build a sophisticated SaaS investment strategy platform for an algorithmic hedge fund with large-scale data visualization capabilities, interactive charts, and real-time analytics • Contribute to a healthcare platform that cut patient data processing by 60%, streamlined workflows by 30%, and attracted 5+ new enterprise clients My specialty is translating challenging business requirements into clean, performant React applications using TypeScript, Tailwind CSS, TanStack, and AI-assisted development workflows. Whether you're building data-heavy dashboards, customer-facing SaaS platforms, or need seamless frontend-backend integration - I build systems that scale and interfaces users actually enjoy using. What sets me apart: • Top Rated Plus freelancer with 100% Job Success Score and perfect 5.0 rating across all projects • 15+ years of full-stack experience, with 5+ years specializing in React - I understand the complete picture from database to UI • AI-powered workflow - I leverage AI tools to deliver faster without compromising quality (you get more value for your investment) • Full-stack fluency (PHP, Symfony, MySQL, REST APIs) - I integrate smoothly with backend teams and speak their language • Quality obsession - comprehensive testing (Jest, React Testing Library, Vitest), clean code, and maintainable architecture Tech stack: React, TypeScript, Tailwind CSS, Shadcn, TanStack (Router, Query, Table), Apache ECharts, Redux Let's turn your business challenges into elegant solutions - and build applications users love!