Software Engineer (Full Stack) at Delivery Hero Logistics • Paul Babatuyi

Role Overview

Full Stack Software Engineer at Delivery Hero Logistics, building a comprehensive logistics tracking platform with Golang backend and React TSX frontend.

Key Responsibilities & Achievements

Full Stack Development

Built the Golang REST API backend and React TSX frontend for a logistics tracking platform using domain-driven, service-oriented architecture
Frontend consumed REST endpoints for booking, driver assignment, and delivery management
Clean component structure in TypeScript and Tailwind CSS

Database & Performance Optimization

Used PostgreSQL as the primary datastore with PostGIS geospatial queries for location-based driver matching
Wrote and optimized SQL queries and fixed N+1 patterns and missing indexes
Reduced average query latency by around 35% on high-traffic driver-lookup endpoints

Real-Time Features

Implemented WebSocket on both the Golang backend and React TSX frontend for real-time driver location and delivery status streaming
Used Redis to cache active driver state and route data
Reduced database read load on hot endpoints by around 50% under peak traffic

Security & Authentication

Implemented JWT-based stateless authentication on the backend with per-route rate limiting and CORS handling
Added protected route guards on the React TSX frontend with automatic token refresh and redirect on session expiry
Applied OWASP-aligned input validation across form submissions

DevOps & Monitoring

Dockerized backend services and contributed to GitHub Actions CI/CD pipelines with automated unit and integration tests
Tests across both backend handlers and React components
Added Prometheus metrics and structured logging
Reduced mean time to identify production errors by around 40%

Backend: Golang, REST APIs, WebSocket
Frontend: React, TypeScript (TSX), Tailwind CSS
Databases: PostgreSQL (with PostGIS), Redis
Security: JWT, CORS, OWASP
DevOps: Docker, GitHub Actions
Observability: Prometheus