Joachim C.

 I help founders build AI SaaS platforms fast. I specialize in real-time AI applications, voice-driven experiences, and automation, using battle-tested frameworks to take products from concept to scale. ⚡ What I Build & Deliver - AI-powered SaaS applications - Rapid MVPs in weeks, not months - Real-time AI voice assistants (WebRTC, Twilio, LiveKit, Daily) - Scalable AI APIs & backends - Self-hosted AI chat platforms with private LLM integrations - AI-driven content, workflow automation & cost-efficient AI processing - SaaS platforms with Stripe payments & subscription models 🏗️ My Process & Work Ethic - Sprint-based execution with transparent updates - Proven frameworks for fast & scalable AI development - Cost-efficient AI optimization (caching, async, smart API usage) - Scalability-first mindset for long-term growth - Secure-by-default approach making SOC2 and HIPAA audits a breeze - Business-driven AI solutions that generate revenue, not just tech 🎯 Who I Work With - Startup founders & entrepreneurs - VC-backed companies & scaling businesses - Tech-driven enterprises looking for automation & efficiency - Growth-focused SaaS companies 🔥 What Sets Me Apart - 14 years of development experience - Technical co-founder mindset with a business-driven approach - Deep expertise in AI, automation, and SaaS - Clear, fluent English communication & strategic insights - Agile sprints with transparent progress & results-driven execution - AI platforms built for scalability, automation, and monetization I started my tech journey in 2010, developing PSP games in Lua before moving into web development with XHTML 1, PHP, and WordPress. I later scaled a few e-commerce platforms to 7 figures before returning to my core development passion. When I’m not building AI apps, I train Brazilian Jiu-Jitsu—an art that, like software development, requires discipline, problem-solving, and adaptability. ✨ What Clients Are Saying « Joachim did an amazing job starting from understanding the whole project and building exactly what we asked on time! He showed a high level of professionalism working with different APIs including Open AI. It was really a pleasure to work with Joachim. We highly recommend! » « We wasted $10,000 and endured 3 challenging months of back and forth with a "python development agency" from Pakistan before we turned to Joachim. He immediately understood the requirements and built everything from scratch in less than a month! » « Usually, it takes a lot of time to understand the structure or start refactoring things… But I think this is the cleanest documented code I’ve seen when joining a project. » « Joachim played a critical role in the scalability of my mobile app by leveraging his knowledge of LLMs. I become more and more grateful that I found Joachim since his skillset aligns ideally with what my team needs in order to effectively scale and automate our product. I would recommend him for any software task requiring accuracy, quality and vision. » « Joachim exceeded all our expectations from start to finish. He demonstrated outstanding technical expertise, delivering clean, efficient code ahead of schedule while staying attentive to every detail. His commitment to quality, responsiveness, and collaboration truly set him apart. We highly recommend him for any software development endeavor! » 🛠️ My Favorite Tech Stack - Backend: FastAPI, Python, Pydantic, Vercel AI SDK, LiteLLM, OpenAI, LangChain, LlamaIndex - Frontend: SvelteKit, Svelte 5, React, Tailwind, Shadcn, Streamlit, PicoCSS, Capacitor - Database: PostgreSQL, Redis, Supabase, Convex, pgvector, SQLite, Chroma, Pinecone - Real-time streaming: WebSocket, WebRTC, SSE, LiveKit, Telnyx, Twilio, Daily, gRPC - Auth: Lucia, Supabase, Firebase, WorkOS - Infrastructure: AWS, Cloudflare, Docker, serverless workers, Runpod, Hetzner, Fly.io, Google Cloud, Azure, Terraform, Snyk - Monitoring: Sentry, PostHog, Plausible, Google Analytics, Userback - Monetization: Stripe, RevenueCat, PayPal, Rewardful, Tapfiliate - Voice: Whisper, Deepgram, ElevenLabs, Cartesia, RVC, Coqui, PlayHT, Gladia 🚀 Have an AI idea you want to bring to life? Let’s discuss how we can quickly turn it into a scalable, profitable product.