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Hi, I’m Mike, a Senior Frontend Engineer with 10+ years of experience building scalable, high-performance web applications using React, Next.js, and Angular. I work with SaaS companies, startups, and enterprise teams to turn designs into fast, maintainable, and user-friendly interfaces that scale with real business needs. Core Expertise & Technologies Frontend Development - JavaScript (ES6+), TypeScript, HTML5, CSS3 - React, Next.js, Angular, Gatsby - Component-driven architecture and design systems - Responsive and accessible UI development - Styling & Collaboration - Styled-components, CSS Modules, Tailwind, Bootstrap - Git, GitHub / GitLab, agile team workflows - Code Quality & Performance - I focus on clean, modular, and maintainable code with strong attention to performance, accessibility, and long-term scalability. - Test-Driven Development using Jest, Mocha, and Sinon - End-to-end testing with Selenium and Protractor - Cross-browser and cross-device validation - AI & LLM Integration Experience In addition to frontend development, I have hands-on experience integrating AI and LLM features into production web applications, including: - Chat and support interfaces using OpenAI / GPT APIs - Context-aware UIs for summarization, classification, and content generation - Secure prompt handling, token optimization, and function calling - AI-assisted workflows and internal tooling I focus on practical, secure, and performant AI integrations that improve real user experiences. What I Bring to the Table - Modern, scalable React and Next.js frontends - Pixel-perfect implementation from design specs - Performance and UX improvements - Clear communication and reliable delivery - Frontend development with optional AI integration expertise Clients looking for a senior React or Angular developer, especially with AI integration experience, will find my skill set well suited to modern web applications. Let’s connect and discuss how I can help bring your product to life. Mike Taatgen

If your app is broken, behind schedule, or stuck with bugs you can't diagnose, I can help. I specialize in taking AI-built and half-finished apps the last mile: fixing, hardening, auditing, and shipping them to production. I've been building production software for 35+ years, including a decade as CTO and then Chief Product Officer at a fintech platform, where transaction correctness, data isolation, and security were non-negotiable. I still sit in that seat today as a fractional CTO for founders, guiding teams from idea through MVP launch. I've led architecture, run engineering teams, and shipped systems that had to hold up under real operational stakes. I build with AI tooling every day, including Claude and the Anthropic API, and I run my own business operations on an automated AI-agent pipeline I built. That's why my delivery timelines run ahead of standard estimates, and why I know exactly where AI-generated codebases skip guardrails and where they hold up. My recent production work centers on React, Next.js, TypeScript, Supabase (Postgres, Auth, RLS), Node.js, and Stripe. Recent engagements include pre-launch SaaS architecture audits, Supabase RLS and API security reviews, rescuing AI-generated MVPs (Lovable, v0, and similar) into production, and LLM feature integrations. Common engagements: - Pre-launch architecture and security audits, with a written findings and remediation report (Supabase RLS is a specialty) - Stabilizing and finishing AI-built or half-built MVPs - API integrations that fail, timeout, or return incorrect data - Auth, webhooks, and data sync issues - React rendering, state, and performance problems - Node.js / Express backend errors and crashes - LLM features: chat, scoring, extraction, and agent workflows I also work with Web3 systems when a project calls for it, including Ethereum and Solana smart contracts, token integrations, and wallet-based workflows. I'm available for short-term fixes, audits, and ongoing support. If you're not sure what you need yet, start with an audit: you'll get a written findings and remediation report you can act on with or without me.

Your entire product team - in one engineer. I design, build, and ship complete SaaS products solo: backend, frontend, payments, infrastructure, and the programmatic SEO that brings in the traffic. If you have an idea and need a senior engineer who can turn it into a deployed, maintainable product, without hand-holding, that's exactly what I do. What that means for my clients: • 70,000+ pages live in production • 250,000+ weekly Google impressions from programmatic SEO • 100% solo-shipped SaaS platforms, design through deployment • 20+ years building for the web · Top Rated Plus · 100% Job Success I also build with AI day to day, shipping Gemini-powered product features and using AI throughout my own workflow to move from idea to production faster, without cutting corners. Few PHP engineers can do this credibly. I can. WHERE I HELP MOST • Build & launch a complete SaaS product (multi-tenant, billing, the works) • Programmatic SEO & lead-gen systems that actually rank and convert • Add AI features to an existing app (Gemini, OpenAI, Google APIs) • Custom admin panels & internal tools (Laravel + Filament) • Rescue or scale a stalled/inherited Laravel project MY STACK Laravel, Livewire, Filament, PHP, MySQL, Redis · Vue.js, Alpine.js, Tailwind · Stripe/Cashier, Google Gemini & APIs · Docker, nginx, DigitalOcean, CI/CD · Pest/PHPUnit · REST APIs, webhooks, queues, Schema Org HOW I WORK I start with the business outcome, not the ticket. You get a clear plan with milestones, steady progress you can see, and code that's commented and maintainable, so you're never stranded after launch. Solo or embedded with your team. Send me a message with what you're building, and I'll tell you exactly how I'd approach it, no obligation.

Is your app slow, your AWS bill creeping up, or your deploys breaking every other Friday? That's the stuff I fix. I'm Yassin — a full-stack developer and DevOps engineer. I build web apps that feel fast, and I clean up the infrastructure underneath them so your team can ship without holding its breath. WHAT I DO — Full-stack builds: Vue.js, React, TypeScript on the front; Go, Python, FastAPI and REST APIs behind it — Frontend & UI work: responsive layouts, clean component structure, and load times clients actually notice — DevOps & cloud: AWS, Docker, Kubernetes, GitHub Actions CI/CD, GitOps deployments — Performance rescue: slow pages, N+1 queries, memory leaks, servers falling over under real traffic — Database work: schema audits, index tuning, query optimization, backup and migration plans — Automation: n8n + AI workflows that kill the manual busywork between your tools HOW I HELP Most of my work starts as "something is broken and nobody knows why." I trace it to the actual cause instead of patching symptoms, then fix it in a way that won't come back in three months. If the right answer is a smaller change than you expected, I'll tell you that too. WHY CLIENTS KEEP ME AROUND — I explain things in plain English. No jargon walls, no vague status updates. — I scope honestly. Real timelines, clear pricing, and a heads-up the moment something shifts. — I document what I touch. You keep the knowledge, not just the code. — I finish. I run a software studio (Nuri Softworks), so you get agency process with one accountable person on the other end. I'm a US-based military veteran in Clarksville, TN, working 30+ hrs/week and usually replying within a few hours. Tell me what's broken, what you've already tried, and what a win looks like. I'll reply with how I'd approach it — no pitch deck, no pressure. Happy to jump on a quick call if that's easier.

I ship SaaS from concept to production. I've launched two multi-tenant SaaS products, one for a client, and one of my own. I own and maintain an e-commerce platform with 50+ live stores, which collectively did over $6M in gross sales through the platform in 2025, plus a stack of client builds across various technologies and programming languages. If "DevOps" and "backend" feel like two different hires you can't afford, Hi!, I'm both of them. Recent accomplishments: * Maintain and modernizing a multi-tenant e-commerce platform in PHP with 50+ stores. * Led the creation of a mult-version X12 EDI SaaS platform from scratch and shipped it. * Designed AS2/SFTP/FTP file transfer pipelines with stability and fault-tolerance in mind. * Maintain Linux, Docker, CI/CD, monitoring, and incident response on production systems. * Led a small engineering team, providing guidance, code review, and subject matter. I enjoy working most on: * Multi-tenant SaaS applications using Laravel and Livewire or React * ERP / EDI / API integration projects (Acumatica, X12, REST, etc.). * Docker deployments using IaC tools, such as Ansible, that are reproducible and observable. * Long-running platform engagements where a founder wants one person who can actually own the whole stack. "Samuel has worked on several projects for us over the years and he is my first choice when we need additional development help. He's experienced, can tackle complexity, and is a quick learner when we give him anything new. Great communicator, totally trustworthy, and a great dev." - Tyler S. Ideal engagement: $5k+, 4+ weeks, founders or tech leads who want a senior partner on backend, infrastructure, or both. Drop a line or two (what you're building and what's blocking you). I'll reply during US business times.

Highly accomplished and motivated Senior Software Engineer with over a decade of hands-on experience. Proven track record of delivering innovative and secure solutions and driving project success through the application of cutting-edge technologies. Adept at leading cross-functional teams and collaborating with stakeholders to achieve business objectives. Currently building and testing secured RestAPIs, Web Apps, and Mobile Apps using technologies such as GCP, AWS, Azure, Python, Pandas, Flask, ORM, Powershell, SQL, NoSQL, Bash, JavaScript, TypeScript, HTML, CSS, Jest, Solidity, React, React Native, Vue, Node, Redux, Expo, Google Firebase, Clerk, Ansible, AWS CDK, Azure DevOps, Azure Pipelines, Windows Server, Linux, Docker, Microservices, VPN, Blockchain, Networking, Virtualization, and more.