jonnykoulouris
I lead the development of a RESTful API platform, managing developers and delivering scalable backend systems used in production environments.
## about
I’m a backend-focused software engineer with over 6 years of experience building and maintaining production systems. Currently, I lead the development of a RESTful API platform, where I’m responsible for technical direction, delivery, and mentoring developers. My work focuses on designing scalable systems, improving reliability, and ensuring efficient integration between services. I’ve worked across backend, frontend, and mobile environments, giving me a strong understanding of how systems connect end-to-end.
## 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.