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API Security / Backend Systems

GateShield

Built a security-focused API gateway that inspects incoming requests, applies rule-based checks, logs suspicious activity, and returns structured responses through a clean backend architecture.

RoleBackend developer / product designer
Timeline2026
FastAPIPythonSQLiteHTTPX

Overview

GateShield is a backend-focused security project designed to inspect and classify API traffic before forwarding requests upstream.

The challenge

I wanted to build something that demonstrated backend systems thinking, security awareness, and product framing beyond a standard CRUD application.

What I built

Designed a gateway layer that evaluates requests before forwarding them.
Built rule-based inspection logic for suspicious or risky inputs.
Logged security-relevant events for later analysis.
Structured the app to support future expansion into dashboards, rules management, and richer traffic analysis.

Outcomes

Created a strong security-focused portfolio project aligned with backend and infrastructure roles.
Demonstrated API design, request handling, inspection logic, and architecture planning.
Established a base that can grow into a more production-style security platform.