Ion V.

Need a dev to join your team, understand your product, and help build it for the long run? 💼 8+ years of production experience ⏱️ 3+ years of team lead experience 🏅 5+ years of long-term client partnerships ⏳ Available 20–40 hours/week I help with architect, design, and build of reliable systems that solve real problems and last for years. Whether it's building a backend from scratch, connecting different tools and services, or automating workflows with APIs and AI, my goal is always to find the right solution and deliver a scalable product. 𝗠𝘆 𝗿𝗲𝗰𝗲𝗻𝘁 𝘄𝗼𝗿𝗸: • 80% reduction of CPU usage: I optimyzed a core engine to be more effective in procesing 6M+ requests per hour • Software architecture: Rebuilt the core engine of a complex Angular canvas application, with the plug-in based architecture it is now easy and straight forward to add new canvas tools and features that don't break. • Backend development from scratch: Designed and built a system that dynamically generates complex BigQuery queries to get custom data to the UI. 𝗪𝗵𝗮𝘁 𝗜 𝗰𝗮𝗻 𝗵𝗲𝗹𝗽 𝘆𝗼𝘂𝗿 𝘁𝗲𝗮𝗺 𝘄𝗶𝘁𝗵: • Backend development with Node.js and TypeScript • Full-stack development with Angular and Node.js • REST APIs and third-party integrations • PostgreSQL database development • Software architecture and system design • Performance optimization • Maintaining and improving existing applications • Refactoring legacy code and building new features 𝗜𝗻𝗱𝘂𝘀𝘁𝗿𝗶𝗲𝘀 𝗜'𝘃𝗲 𝘄𝗼𝗿𝗸𝗲𝗱 𝗶𝗻: AdTech, Healthcare, SaaS, Recruitment, Data Analytics, Mobile Applications 𝗠𝗮𝗶𝗻 𝗧𝗲𝗰𝗵 𝘀𝘁𝗮𝗰𝗸: • Backend & DB: Node.JS, Nest.js, Express, PostgreSQL, BigQuery • Frontend: Angular, Ionic, Typescript, React • AI & LLMs: LLM Integration (Claude & OpenAI API), MCP servers, Agentic & multi-agent workflows • Integrations: OpenAI API, Google Cloud, Cloud Storage, Authentication & Authorization, OAuth / JWT, third-party APIs