
Chanuka G.
Freelance Software Engineer
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Portfólio
Experiência profissional
Full Stack Software Engineer
360Tech • Período integral
Jan 2024 - Present • 2 yrs 4 mos
• Designed, developed, and deployed ERP-style business systems, POS platforms, and internal enterprise tools used by real companies for daily operations. • Independently delivered end-to-end full-stack solutions, owning system architecture, backend logic, APIs, databases, deployment, and post-production maintenance. • Built scalable backend services and RESTful APIs using Express.js, FastAPI, and MongoDB, integrating third-party services and payment gateways. • Automated complex workflows through custom web apps, desktop applications (PyQt), and Android mobile apps (Flutter). • Designed secure authentication systems with role-based access control, ensuring data integrity and system security. • Optimized system performance by reducing API latency and improving database query efficiency, improving responsiveness of live systems. • Deployed and maintained applications on cloud servers, configuring CI/CD pipelines, managing server environments, and monitoring live production systems. • Worked directly with business owners and stakeholders to translate real operational needs into scalable technical solutions. • Provided long-term post-deployment support, debugging live issues and continuously improving systems based on business feedback