Need a UI/UX Designer who works as part of your product team — not just someone who delivers files? I am a UI/UX Designer with 8+ years of experience helping SaaS companies, fintech teams, and enterprise product teams build interfaces that are clear, consistent, and built to grow. My work covers the full product design process — from UX research, user flows, and wireframing through high-fidelity UI design, interactive prototyping, and developer handoff in Figma. Most product teams I work with face the same problem. The product grows, the design does not keep pace. Screens become inconsistent. The Figma file and the live product drift apart. Engineers spend time interpreting ambiguous handoffs instead of building. There is no shared component library anyone can rely on. As a UI/UX Designer, this is exactly the problem I am hired to solve — and prevent from happening on newer products. ----- What I Help Clients With I work across SaaS platforms with complex multi-role user flows and information-dense layouts, fintech and analytics dashboards where data hierarchy and interface clarity directly affect usability, enterprise internal tools and admin panels built for daily operational use, MVP product interfaces where early UX decisions set the structural baseline for everything that follows, and design system projects where teams need to restore consistency across a growing product. I also handle UX audits, usability testing, mobile UI design, and responsive web design for cross-platform products. I have worked across PropTech, ConTech, logistics, fintech, and B2B SaaS — products where design decisions have real consequences for adoption, retention, and engineering velocity. ----- Experience & Credentials 8+ years of commercial UI/UX design experience across early-stage startups and scaling product companies. Over 50 UX/UI implementations delivered for production SaaS platforms, fintech dashboards, PropTech systems, logistics interfaces, and enterprise web applications — including full design system builds, Figma component libraries, and end-to-end product design from wireframe to developer handoff. Work delivered as part of the Intelvision engineering team across 100+ projects shipped. Clients include Visoplan, ING+, Jincom, and Kiflo. ----- Core Skills & Tools UI/UX Design · Figma · Adobe XD · Sketch · Wireframing · User Flows · Prototyping · Interaction Design · Design Systems · Component Libraries · Responsive Web Design · Mobile UI Design · UX Audit · UX Research · Information Architecture · Developer Handoff · WCAG Accessibility · Usability Testing · Web Application Design · Dashboard UI Design ----- How I Work I join projects through Intelvision, a European software engineering company. That means clients get a UI/UX Designer who understands how interfaces will actually be built — with engineering awareness, internal review processes, and delivery continuity behind every project. If you need a UI/UX Designer for a SaaS platform, data-heavy dashboard, or web application that needs consistent and scalable design — let's talk.

You don’t just need another developer; you need a business-first technical partner. Modern software development and enterprise AI aren't about running superficial prompt experiments—they require scalable architecture and a clear ROI. With 12 years of engineering experience (since 2014), I operate as a dedicated Technical Rescuer and CTO for my clients. I specialize in intercepting broken architectures, eliminating critical technical debt, and transitioning projects from a fragile "programmer mindset" to a robust, business-driven foundation across web, mobile, and AI domains. 🧮 How My Approach Mitigates Your Risk: I build enterprise-grade systems that cannot afford to fail. I focus on deterministic outcomes and risk mitigation: • Predictable Multi-Agent Systems: I design deterministic, error-free state machines that ensure AI agents behave predictably, moving beyond unreliable chatbot responses into true workflow automation. • High-Fidelity RAG & Vector Optimization: When building Retrieval-Augmented Generation (RAG) systems for confidential data, I utilize multidimensional vector optimization (Pinecone, pgvector) to guarantee high relevance and systematically eliminate model hallucinations. • AI-Assisted Development: My team and I leverage advanced, AI-assisted development workflows (Claude Code, Cursor, OpenClaw) to radically accelerate your Time-to-Market without sacrificing code quality or stability. ██ The Problems I Solve (And How We Solve Them) 🔧 Rescuing Broken Architectures & Full-Stack Development Inherited a failing project plagued by spaghetti code or unreliable vendors? I don't just patch problems; I restructure the foundation. From high-performance web platforms (React/Next.js, Node.js, Laravel) to cross-platform mobile applications, we build and rescue scalable, full-stack systems that perform under pressure. 🤖 High-Fidelity AI Voice & Omnichannel Concierges We engineer specialized, omnichannel AI voice stacks (Vapi, Retell AI, ElevenLabs) that drastically reduce administrative workloads. Combined with advanced RAG systems, these agents are secure, highly accurate, and directly tied to your operational workflows—whether on the web, mobile, or via telephony. ⚙️ Enterprise Scaling & ERP Unification When you outgrow your current setup, you need highly resilient cloud infrastructure. Following a strict architectural audit, we bypass unstable legacy workarounds. Whether we are building complex marketplace platforms like Shittest.me and Gryffin Inc., or executing deep process re-engineering using the Odoo platform, we unify your operations for maximum efficiency. 🛠 The Technology Stack • AI & Machine Learning: RAG Systems, Multi-Agent Workflows, LLM Fine-tuning, Vector Databases (Pinecone, pgvector) • Voice Orchestration: Vapi, ElevenLabs, Retell AI, Deepgram • Core Languages: Python, Node.js (NestJS/Express), PHP (Laravel) • Frontend & Mobile Architecture: React.js, Next.js, Vue.js, Mobile App Development • Infrastructure & Business Logic: AWS/GCP Cloud Architecture, Odoo ERP integration, API Architecture ██ How I Work I partner exclusively with businesses that view proper architecture as a long-term investment, not a quick hack. If you are dealing with technical bottlenecks that are slowing your growth, need to launch a complex web/mobile platform, or want to deploy a high-stakes AI system that absolutely cannot fail, send me a message with your current challenges and timeline. I will let you know honestly if I am the right fit, and we can discuss the most efficient path forward.

Hi, I'm Pankaj. I'm a passionate Full-Stack Developer and AI Enthusiast with expertise in building high-quality software solutions. With a strong background in both front-end and back-end technologies, I specialize in creating powerful, scalable, and efficient applications tailored to meet your business needs. Here’s what I bring to the table: 🔹 Ruby on Rails Development I craft robust, maintainable, and high-performing web applications using Ruby on Rails. From database architecture to RESTful APIs, I ensure seamless backend functionality. 🔹 Node.js Expertise As a Node.js developer, I build fast, scalable, and secure server-side applications. I can handle complex backend logic while ensuring optimal performance for your applications. 🔹 Front-End Proficiency with React On the front end, I leverage React to build intuitive, responsive, and dynamic user interfaces. My goal is to deliver seamless user experiences across all devices. 🔹 AI & Chatbot Development with ChatGPT Harness the power of AI with intelligent chatbot solutions! I design and implement AI-driven chatbots using ChatGPT to enhance user interaction and automate customer service. 🔹 Chatwoot Specialist As a Chatwoot expert, I can help you set up, customize, and optimize your customer support solutions. Whether it’s integrating live chat or building custom workflows, I've got you covered. What can you expect from working with me? Clear and consistent communication High-quality, scalable code Timely delivery of projects A results-driven approach to solving your problems Let’s bring your ideas to life! Whether you need a robust web application, an AI chatbot, or an advanced customer support system, I'm here to help. Let’s work together!

As a Top Rated Plus Python Full stack developer, I help startups and product teams bring backend-heavy, modern web applications to life. My work spans from product ideation and architecture to automation, AI integration, and ongoing performance tuning. My stack includes Python (FastAPI, Django, Flask), React, Next.js, NestJS, PostgreSQL and AWS, enriched with scalable data pipelines, monitoring, and automation tools. With over 9+ years of experience and a 100% Job Success Score, I’ve led and delivered more than 40 web apps and five large-scale platforms with high concurrency. ✅ A tech Partner from Architecture to Deployment. Clients work with me because I don’t just code features, I architect scalable, cloud native systems that require minimal oversight. ✔️ Backend: Python, FastAPI, Django, Flask, NestJS, REST APIs, PostgreSQL, MongoDB, Redis ✔️ Frontend: Next.js, React, Tailwind CSS, SSR/CSR, reusable UI libraries ✔️ Cloud: AWS (Lambda, EC2, S3, Step Functions), Docker, GitHub Actions ✔️ Automation & AI: OpenAI API, Langchain, LLM, Make, Zapier, n8n, RAG Agents, AI Agents, Generative AI I’ve also led and mentored engineering teams up to 45 developers, helping deliver across sprints while balancing performance, timelines, and quality. 🏆 Highlighted Work & Outcomes ✔️ Frontend Engineering (React + Next.js) Built fully responsive interfaces using React and Next.js, optimizing for performance and API sync with FastAPI based backends. ✔️ Scalable API Infrastructure (Python, FastAPI) Refactored a high-load backend to handle massive traffic spikes using FastAPI, Redis caching, and PostgreSQL. Supported mission-critical uptime for end users. ✔️ Retention-Driven Feature Delivery. Built backend features that improved session time and user retention in a high-growth mobile app com, bining Redis-based response optimization with async jobs. ✔️ AI Feedback Engine with OpenAI API. Built a GPT-driven evaluation engine for a learning platform. Reduced manual grading efforts and added dynamic feedback for students. ✔️ Cloud Automation & ETL Pipelines. Designed serverless pipelines using AWS Lambda and Step Functions to transfer and transform millions of files with isolated, scalable logic. ✔️ Monitoring & SLA Tools Integrated ELK stack, Grafana, and PagerDuty into production systems to track uptime, detect anomalies, and support SLAs for enterprise clients. 🎯 Technical Stack & Core Skills ✔️ Languages & Frameworks Python, FastAPI, Django, Flask, Node.js, JavaScript ✔️ Frontend Next.js, React.js, TailwindCSS, PWA, SSR/CSR ✔️ Backend & Databases RESTful APIs, OAuth2, PostgreSQL, MongoDB, Redis Celery/RQ task queues, ETL pipelines, and background jobs ✔️ Cloud & DevOps AWS Lambda, EC2, S3, Step Functions, EventBridge, CloudWatch, Supabase Docker, GitHub Actions, CI/CD pipelines ✔️ Automation & AI OpenAI API, Langchain, GPT-4/4o, Prompt Engineering RAG pipelines, Agent flows, n8n, Zapier, Make com, Webhooks, Gen AI ✔️ Monitoring & Performance ELK, Grafana, New Relic, PagerDuty Async processing, caching, load testing, and SLA compliance 🎯 Domains I’ve Worked In ✔️ FinTech: Built backend APIs, fraud prevention, trading platforms in Python, FastAPI, Django, Celery, grafana, AWS. ✔️ EdTech: GPT integrations, adaptive learning tools using FastAPI, GPT API, Langchain, n8n ✔️ LegalTech: Scalable OCR + NLP processing using TensorFlow, Custom pipelines, Vector database storage ✔️ SaaS: Multi-tenant platforms, automation systems using React, Python, Next.js, Nest.js, AWS, FastAPI, Stripe, Oauth. 🎯What Sets Me Apart ✔️ Proven experience delivering complex platforms from scratch ✔️ 15M+ user databases, multi-cloud infrastructure, scalable patterns ✔️ Balanced blend of backend depth and frontend precision ✔️ End-to-end ownership: architecture, infra, dev, monitoring Let’s Build Something That Scales If you’re looking for a developer who can own the backend, integrate AI, and bring reliable systems to life, I’d love to collaborate. Send me an invite and let’s take your product to the next level

## Experts in API Integration & Integration Architecture for Business Systems When business applications need to exchange data efficiently, a simple API connection is often not enough. We design and develop reliable, production-ready API integrations that connect ERP, CRM, eCommerce platforms, and internal business systems with a strong focus on performance, security, and long-term maintainability. Rather than building quick fixes or temporary automation, we create integration solutions that support critical business operations and scale as your business grows. ## Our Services 🔹 API Integration & System Connectivity Build secure and scalable integrations between ERP, CRM, eCommerce, finance, marketing, and internal systems using REST APIs, Webhooks, OAuth, and other modern integration technologies. 🔹 Integration Architecture Design integration frameworks that include synchronization strategies, monitoring, retry mechanisms, logging, validation, and error handling to ensure reliable data exchange. 🔹 Custom Integration Platforms Develop centralized API integration platforms using Laravel and PHP, giving your team complete control over scheduling, monitoring, logging, and integration management within your own infrastructure. 🔹 API Development & Technical Consulting Provide end-to-end API services including REST API development, webhook implementation, OAuth authentication, system architecture, integration consulting, and technical audits. 🔹 Data Synchronization Build dependable data synchronization pipelines between ERP, CRM, accounting, analytics, and internal applications with validation, monitoring, and automated recovery processes. ⚙️ Our Expertise ✔ API integrations for complex business workflows across finance, eCommerce, logistics, operations, and marketing ✔ Secure and scalable integration architecture with built-in logging, monitoring, retries, and alerting ✔ On-premise and cloud-based integration solutions designed for long-term reliability ✔ Complete project ownership—from architecture and development to deployment, maintenance, and ongoing support ## Technology Stack **Languages & Frameworks:** Laravel, PHP, Node.js, Python **Integration Technologies:** REST APIs, Webhooks, OAuth, Event-Driven Integrations **Platforms & APIs:** HubSpot, QuickBooks Online, Xero, Shopify, Acumatica, BigCommerce, Airtable, Slack, Notion, Google Workspace **Infrastructure:** AWS, DigitalOcean, Docker, Linux Why Clients Work With Us 💼 Proven experience delivering enterprise-grade API integration solutions 🤝 Transparent communication, realistic timelines, and responsive support 🚀 Flexible engagement for standalone API integrations, system modernization, and long-term integration platforms Whether you need a custom API, multi-system integration, or a complete integration architecture, we build secure, scalable, and production-ready solutions that keep your business systems connected. **Keywords:** API Integration, API Developer, Custom API Development, REST API, REST API Integration, Third-Party API Integration, Integration Architecture, System Integration, Enterprise Integration, Backend Development, Webhook Integration, OAuth Authentication, API Automation, Workflow Automation, Data Synchronization, Real-Time Data Sync, ERP Integration, CRM Integration, eCommerce Integration, Shopify API, WooCommerce API, HubSpot API, QuickBooks API, Xero API, BigCommerce API, Airtable API, Slack API, Notion API, Google Workspace API, Laravel, PHP, Node.js, Python, MySQL, PostgreSQL, GraphQL, Docker, AWS, DigitalOcean, Linux, API Testing, API Debugging, API Consulting, Production-Ready APIs, Scalable API Solutions, Secure API Integration, Cloud Integration, On-Premise Integration, System Architecture, Monitoring, Logging, Error Handling, Retry Logic.

Building something complex? I help companies architect, build, and scale systems that actually work — from first commit to 1M users. And I can prove exactly how I do it. Why Clients Hire Me After 74+ Upwork contracts and $200K+ delivered, I've learned that most projects fail for the same reasons: unclear scope, wrong architecture decisions early on, and vendors who say "yes" to everything. I do the opposite — I ask hard questions upfront so we don't discover problems in production. How I Work: AI-Augmented Development I don't just use AI tools — I've systemized them into a Multi-Agent Development Methodology: → Every decision documented and versioned (no tribal knowledge) → Full audit trail — see exactly how your project evolves → Real-time visibility into progress (not just status updates) → Clean handoffs — the next developer won't curse me What I Do → AWS Architecture & Infrastructure — Design, migration, optimization, security → Full-Stack Development — React, Angular, Node.js, Python, Java → Compliance Systems — HIPAA, SOC2, enterprise-grade security → IoT & Real-Time Data — AWS IoT Core, sensor networks, dashboards → Trading & Financial Systems — TradingView, Pine Script, algorithmic strategies Where I Add Most Value → Projects where "getting it right" matters more than "getting it cheap" → Systems that need to scale, comply, or integrate with complex infrastructure → Teams that want a technical partner, not just a code vendor → Rescuing projects that previous developers made a mess of → Teams who value documentation and full visibility The Numbers → 100% Job Success Score → Expert-Vetted status (top 1% of Upwork talent) → $200K+ earned on platform → 50+ developers in my agency for larger engagements → 22+ years building enterprise systems (Hewitt, Xerox, Cognizant) Certifications → AWS Solutions Architect – Professional → AWS Advanced Networking – Specialty → AWS Security, Cloud Economics, and Technical Professional Industries I've Built For Healthcare (HIPAA) · Fintech · SaaS · IoT · Insurance · Logistics · Manufacturing · Legal Tech How to Start Send me a message with: → What you're trying to build or fix → Your timeline → Any constraints I should know about I'll give you an honest assessment — including whether I'm the right fit.

📌 I help companies design, build, and scale complex software products - from AI-powered MVPs to enterprise-grade platforms used by thousands of users. I represent LITSLINK, a product-oriented development company with 10+ years on Upwork, $30M+ earned, and 800,000+ hours delivered across startups and enterprises worldwide. We don’t just “write code.” We solve business problems with technology, focusing on scalability, reliability, and long-term ROI. What you can expect working with me: ✔ Clear technical ownership - from discovery to production ✔ Senior-level architecture decisions (not trial-and-error delivery) ✔ Transparent communication and predictable execution ✔ Dedicated engineering teams, not freelancers stitched together ✔ A strong focus on outcomes, not just features Most clients come to us when: - An MVP must be production-ready, not experimental - AI features must actually work in real business workflows - Existing systems need modernization without breaking operations - Internal teams are overloaded or lack deep AI / DevOps expertise Core Expertise: 🧠 AI & Data - Generative AI (GPT-4 / GPT-4o / GPT-5 / LLMs) - NLP, Computer Vision, Recommendation Systems - RAG pipelines, vector databases, embeddings - MLOps, model deployment & monitoring - AI-powered automation and analytics 🧱 Backend & Architecture - Python, Node.js, Ruby, Java, Go - Microservices & monolith modernization - REST / GraphQL APIs - High-load & distributed systems 🖥 Frontend - React, Angular, Vue, Ember - Cross-platform apps (Flutter, React Native) - Enterprise UI systems and dashboards 📱 Mobile - iOS & Android (native) - Cross-platform mobile solutions - Performance-focused mobile architectures ☁️ DevOps & Cloud - AWS, GCP, DigitalOcean - Docker, Kubernetes - CI/CD (GitLab, Jenkins) 🎨 UX / UI - Figma, Adobe Suite - UX research, MVP validation - User journeys & conversion-driven design I helped multiple clients launch AI-powered products from MVP to production, reducing time-to-market by 30–45% through clear discovery and architecture planning and enabled startups to scale engineering capacity quickly by assembling and managing dedicated teams of 3-20 engineers, without sacrificing code quality or delivery predictability. Also, while having an experience of delivery for platforms with 100K+ active users, we can ensure stable performance, monitoring, and zero critical downtime at launch. Improving infrastructure efficiency and cloud cost control (while achieving 20-35% reduction in operational costs through optimized cloud architecture and CI/CD pipelines) is LITSLINK expertise in their software products development. If you’re looking for a reliable technology partner who can take ownership of complex software initiatives, LITSLINK is built exactly for that. We combine AI and full-stack software development expertise, strong engineering culture, and proven delivery processes to turn ambitious ideas into production-ready, scalable products. Whether you’re validating an MVP, scaling an existing product, or modernizing critical systems, we focus on clarity, predictability, and measurable results. Start with a conversation, and we’ll quickly assess your goals and opportunities, while suggesting a clear, practical path forward.

AI-powered Shopify Developer & Designer with 4+ years of hands-on experience and 230+ completed projects. I use Claude AI, Cursor, and GitHub Copilot daily to design, develop, optimize, and automate Shopify stores faster and cleaner, backed by deep technical expertise in Liquid, JavaScript, theme architecture, CRO, and workflow automation. I am not a prompt-and-pray developer. I design high-converting layouts, write production-grade code, build automations that save you hours, and architect custom solutions from scratch. Claude and other AI tools amplify my speed and precision, but the foundation is real engineering experience across hundreds of live stores. ━━━━━━━━━━━━━━━━━━━━━━━━━ WHY AI + REAL EXPERIENCE MATTERS Most developers either know AI or know Shopify. I know both. I use Claude AI to analyze codebases, catch edge cases, generate clean Liquid/JS solutions, and move through complex debugging faster than any traditional workflow. But I also know exactly when AI gets it wrong and how to fix it, because I have been building Shopify stores since before these tools existed. What that means for you: → Senior-level Shopify work delivered in half the time → Cleaner, optimized code with fewer revisions → Smarter debugging and performance fixes → CRO improvements that actually move your conversion rate → Automations that save you hours of manual work every week → More time solving your business problems, less time on boilerplate ━━━━━━━━━━━━━━━━━━━━━━━━━ WHAT I DO ▸ Custom Theme Development & Pixel-Perfect Builds Turn your Figma design or concept into a fast, conversion-ready Shopify store. Custom sections, dynamic product pages, quick view, cart drawer, advanced variant logic. ▸ Shopify Design & UX Full store design, landing pages, product page layouts, and homepage redesigns built for conversions. Clean, modern, mobile-first designs that match your brand. ▸ Conversion Rate Optimization (CRO) Data-driven layout improvements, A/B test recommendations, cart flow optimization, trust signals, and UX tweaks that turn more visitors into buyers. ▸ Automations & Workflows Shopify Flow, Klaviyo automations, order tagging, inventory logic, auto-fulfillment rules, and custom scripts that eliminate repetitive manual work. ▸ Bug Fixes, Debugging & Performance Core Web Vitals (INP, LCP, CLS), app conflict resolution, code cleanup, and speed optimization. I use Claude to trace issues faster and verify fixes before they go live. ▸ Advanced Customization & Integrations Custom forms, automated workflows, bundles, subscriptions, upsells, third-party app and API integrations, checkout customization. ▸ Platform Migrations Seamless migrations from WooCommerce and other platforms to Shopify with zero data loss and improved UX. ▸ Ongoing Maintenance & Optimization Store audits, conversion improvements, and scalable architecture for stores that are growing fast. ━━━━━━━━━━━━━━━━━━━━━━━━━ INDUSTRIES I WORK WITH Fashion & Apparel · Beauty & Skincare · Health & Supplements · Home & Lifestyle · Dropshipping & Multi-Variant Stores · International & Multi-Currency Stores ━━━━━━━━━━━━━━━━━━━━━━━━━ TECH STACK Shopify · Shopify Plus · Liquid · JavaScript · HTML/CSS · SCSS Figma · Canva · Klaviyo · GA4 · Payment Gateways · Salla Claude AI · Cursor · GitHub Copilot · Claude Code Shopify Flow · Zapier · Custom Automations CRO · A/B Testing · UX Optimization ERP & CRM Integrations · Custom Scripts & Automation ━━━━━━━━━━━━━━━━━━━━━━━━━ If you want a Shopify developer who designs, builds, optimizes, and automates, all powered by AI and real experience, let's talk.

Your website is your 𝐝𝐢𝐠𝐢𝐭𝐚𝐥 𝐬𝐭𝐨𝐫𝐞𝐟𝐫𝐨𝐧𝐭 - your gateway to reaching 𝐦𝐢𝐥𝐥𝐢𝐨𝐧𝐬 worldwide. With 𝟭𝟯+ 𝘆𝗲𝗮𝗿𝘀 𝗼𝗳 𝗲𝘅𝗽𝗲𝗿𝗶𝗲𝗻𝗰𝗲, I’m 𝐀𝐧𝐦𝐨𝐥𝐝𝐞𝐞𝐩, specialize in transforming Figma designs into pixel-perfect, responsive HTML/Wordpress that looks flawless on every device. My commitment to clean, efficient code ensures seamless performance, and my dedication to excellence means you’ll get a website that not only meets but exceeds your expectations. 𝐖𝐡𝐚𝐭 𝐒𝐞𝐭𝐬 𝐌𝐞 𝐀𝐩𝐚𝐫𝐭? Creativty ➝ Technology is powerful, but creativity makes it exceptional. With a strong technical background and a passion for the creative arts, I craft unique, problem-solving solutions that are tailored to your needs. From custom designs to innovative architectures, I focus on building something truly bespoke and impactful for your business. Clear & Effective Communication ➝ A website isn't just about design and development—it needs buy-in from the business to truly succeed. Too many projects fail due to miscommunication. I ensure transparent collaboration, keeping you informed every step of the way while delivering a high-quality, results-driven product. Trust & Reliabilty ➝ Having been on the hiring side of freelancing, I understand how challenging it is to find the right match. That’s why I prioritize honesty, openness, and a relationship-first approach. My goal is to build long-term, successful partnerships and technology solutions that make a real difference for your business . You can count on me for expert advice, transparency, and a commitment to excellence. Let’s connect! 😊 Keywords #Web Design #Web Development #WordPress #Figma to HTML #XD to HTML #PSD to HTML #HTML conversion #WordPress Developer #WordPress Designer #Figma to Wordpress #Figma to Frameworks #Newsletter #Figma Design #Figma Protoype #Custom PHP #Responsive Design #CustomDevelopment #HTML #CSS #PHP #JavaScript #Ajax #CSS 3 #Gsap #Gutenberg blocks #ACF Pro customization #Responsive web design #Web development #Front-end development #WordPress themes #Website customization #User experience #User interface #UI/UX design #PHP #web developer #Adobe XD #Laravel #Divi #Framer #Oxygen Builder #Elementor #Elementor Pro #LearnDash #Webfloe #Duda #Squarespace #Page Speed Optimization #Search Engine Optimization #WordPress e-Commerce Website #User Flow #Product Design #Branding #Typography #Social Media Imagery #Brand Identity & Guideline #Web Page #Payment Gatways # APIs #Zeplin # Canva

My longest client has been with my team for 7 years and over $1M of continuous development. Another project started as a $7K MVP and grew into a $70K product — because it was architected to survive success from day one. I'm Sergei — founder and CTO of a senior engineering team that designs and builds AI-powered SaaS platforms: multi-tenant architecture, AI agents, and the unglamorous production infrastructure that keeps them alive under real users. Here's the uncomfortable truth about how founders usually find me: I'm the second team they hire. Recently a client brought us a "finished" AI SaaS platform before launch. Our architecture audit found 4 critical blockers and 11 high-risk issues the previous team had left behind — each one cheaper to fix on paper than in production. Cheap code isn't cheap. It's a mortgage you didn't know you signed. WHAT I ACTUALLY DO 1) AI SaaS Product Engineering Multi-tenant platforms with AI agents built in — not bolted on. My rule: LLMs go where they create value users pay for; deterministic, testable code goes everywhere else. That discipline is the difference between an AI demo and an AI product. 2) Architecture Audits & Production Rescues A fixed-price, fixed-scope review of your codebase before launch or investment: architecture assessment, risk register, production-readiness score, and a prioritized roadmap. You own the report whether or not we continue together. This is the single highest-ROI engagement I offer — every hour of audit saves 10–20 hours of rework. 3) Long-Term Product Development (T&M) For founders who want a technical team that thinks in years, not sprints. Time-and-materials with full transparency: you see who works on what, at which rate, every week. Fixed-price rewards vendors for cutting corners you won't see for months; T&M rewards us for exactly one thing — keeping you happy enough to continue. Our 7-year client relationship exists because of this model, not despite it. HOW THE TEAM WORKS You'll be working with me directly on architecture and key decisions — and with my senior engineers on delivery, at rates below mine, with full visibility into who does what. You get founder-level attention with team-level throughput. I personally review the architecture of everything we ship. I build for non-technical founders deliberately. You're an expert in your domain — you shouldn't need to learn what a message queue is to make good decisions. Every technical choice comes to you as a business decision: what it costs, what it risks, what it unlocks. STACK (the boring part) Python, Node.js, React/Next.js, PostgreSQL, Redis, AWS, Docker, CI/CD. AI: Claude & OpenAI APIs, RAG pipelines, multi-agent orchestration, evaluation and guardrails for production LLM systems. NEXT STEP If you're building an AI SaaS product — or rescuing one — message me with a short description of where you are. If there's a fit, we'll start with a 15-minute call, and usually from there with an Architecture Audit: fixed price, fixed timeline, a report you keep either way.