Dmitrii C.

I help SaaS and B2B platforms scale cleanly — backend architecture (Node.js/NestJS), Vue frontends, and AI-assisted development workflows. I design and build: - Scalable backend systems in Node.js/NestJS and TypeScript — from greenfield architecture to legacy modernization - Frontend applications in Vue 2/3 and Nuxt 3 - PHP/Laravel systems when that's the right tool for the job - AI-assisted development workflows — coding-agent rules, context engineering, and spec-driven processes that let teams safely use AI on large legacy codebases My approach starts with domain modeling: understanding the business first, then designing data structures and architecture around it (Domain-Driven Design, Event-Driven architecture where it fits). I write clean, well-tested code and document my decisions so anyone picking up the work after me can follow the reasoning. A few examples of what I've delivered: - Owned the architecture design and led the technical migration of an enterprise task-management platform (NestJS/TypeScript), moving millions of records off a legacy system with zero downtime - Migrated a multi-location POS & e-commerce platform for an Australian client — delivered directly through Upwork — from WordPress/Vue2 to Laravel + Nuxt 3, including a Xero integration later adopted by several large customers - Over the past year, I've designed and rolled out an AI-assisted development framework (coding-agent rules + spec-driven workflow) across a 300+ module legacy monolith at a hospitality-tech platform I also mentor other developers — over 30 people I've trained have gone on to work professionally in the field. Currently working full-time, so I'm available part-time (up to ~20-25 hrs/week) for well-scoped projects. If you need clean backend architecture, help untangling a legacy system, or a structured AI-assisted workflow for your team — message me with a bit about your project and I'll tell you honestly whether I'm a good fit.