Dmytro K — Web Development freelancer in Tallinn

You need a development team you can trust - one that ships clean, scalable code, integrates AI where it creates value, and stays with you beyond launch. We are Inmost: a senior full-stack, mobile, and AI engineering team. We build SaaS platforms, web apps, mobile products, and AI-powered features for startups, scale-ups, and enterprise clients. 50+ projects delivered. 100% Job Success Score on Upwork. ✅ Our services: Web Apps — React, Next.js, Node.js, TypeScript, REST & GraphQL APIs Mobile Apps — React Native (iOS & Android), native iOS (Swift\u002FSwiftUI) AI Features — OpenAI\u002FGPT integrations, LLM chatbots, AI-powered SaaS Cloud & DevOps — AWS, Firebase, Docker, CI\u002FCD Integrations — Stripe, OpenAI, OAuth2, CMS, analytics ✅ AI & LLM Integration We build AI-powered features into production applications — not demos: OpenAI \u002F GPT-4 integrations (chat, completion, embeddings, function calling) LLM-powered chatbots and conversational interfaces AI-enhanced SaaS products — smart search, recommendations, automation RAG pipelines, vector databases (Pinecone, pgvector), document Q&A Prompt engineering, fine-tuning workflows, and API cost optimization ✅ AWS Infrastructure Our infrastructure approach: AWS-native architecture (Lambda, ECS, RDS, S3, Cognito) Security-first design and access control strategy Scalable backend systems designed for growth CI\u002FCD pipelines and production-ready DevOps setup Architecture & Technical Discovery For complex products, we begin with a structured discovery phase: System architecture design Infrastructure planning on AWS Feature breakdown and roadmap Risk assessment and timeline estimation This ensures predictable delivery and reduces technical risk before development begins. Why clients choose us: Senior engineers lead every engagement Full team: frontend, backend, mobile, cloud, AI — under one roof Fast delivery with transparent timelines and daily communication Long-term partners — clean architecture built to scale