Hire the Best Vagrant Developers
in the United States

■ I 'am a seasoned software engineer with more than 25 years of experience in developing great software & bringing to life awesome apps ■ I will take ownership of your project & bring it to fruition quickly & without burning a hole in your pocket ■ I have built several micro-services & REST-based services & applications ■ I have built desktop apps, web apps, & mobile apps for Fortune-500 companies as both an independent contractor & as part of large software development teams ■ I have experience in setting up & migrating apps & services on to the Cloud - be it AWS, Azure, or GCP ■ C, C++, GoLang, Java, Python, Javascript, Typescript, React, Vue, Flutter, Jenkins, Groovy, Docker, Kubernetes, SQL, Postgres, Informix, Oracle, SQL Server, Elastic-Search, Elastalerts, Grafana, Istio, Kiali, JUnit, Selenium, JMeter, K6.

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.

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

20 years experience as a full stack and DevOps developer. Have worked in everything from personal and business web design to complex web applications, healthcare/EMR, Big Data/MapReduce/machine learning/AI applications. Typescript/NodeJS/Fastify/Express, React, Vue, Angular, Ruby & Ruby on Rails, Python/Flask/Django, Rust, Golang, Angular, PHP, Perl, Elixir, Haskell, C, C++, C#, Wordpress, Joomla, Drupal, Docker, Kubernetes, nginx, lighttpd, Redis, memcached, Apache, Linux/BSD, PostgreSQL, MySQL, DynamoDB, SQLite, MongoDB, Elasticsearch/Kibana/Logstash/Grafana, Neo4j, DB2, Oracle, MSSQL, and others. AWS, Google Cloud Platform, Azure, DigitalOcean, Linode, Heroku, Vultr, Bluehost, HostGator, etc..