jonnykoulouris
I build reliable web platforms, APIs, and integrations. I lead architecture, delivery, and engineering quality.
## about
I’m a lead software developer across backend, frontend, and production systems. I turn ambiguous problems into practical plans and ship dependable outcomes.
## highlights
- Led a staged Nuxt 2 → Nuxt 3 platform rebuild.
- Built and scaled REST APIs with clear OpenAPI contracts.
- Delivered PostgreSQL migration work with minimal downtime.
## experience
- Lead — API design & development
- PostgreSQL database support
- Legacy app rebuild & support
- Lead, platform rebuild · Nov 2024 – Aug 2025
## featured work
Led the architectural redesign and migration of a large-scale course pages platform from Nuxt 2 to Nuxt 3, evolving into a full rebuild for performance and long-term maintainability.
Led delivery of a safety-critical feature across backend and mobile apps, including validation, rollout, and stakeholder alignment.
Designed and delivered an integration using webhooks and APIs, handling real-world payload issues and operational reliability.
Sole developer for 4 years across a full-stack web app, native iOS, and native Android app. Owned the complete technical lifecycle including AWS infrastructure, API integrations, and cross-platform feature delivery.
## stack
## currently building
Currently focused on API platform work, scalable frontend delivery, and operational reliability.
## contact
Open to lead developer roles and strong engineering teams. Send a message and I’ll reply by email.