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© 2026 Yehezkiel Wiradhika

Hey, i'm Hez.

Welcome to my website!

I'm a Secure Backend / DevSecOps Engineer specializing in production-grade Go (Golang) microservices and distributed systems — backed by real penetration testing experience. I understand vulnerabilities from both sides: as an attacker who has probed 20+ web applications, and as an engineer who built and deployed the systems being attacked. I also build custom security tools — Vortex, AegisCI, GateKeeper Go, RBACLens — and integrate AI/ML into secure backend architectures. Pursuing eJPT security certification.

Posts and Projects ↓More About
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Featured Posts

Backend Engineering deep-dives, Go patterns, distributed systems, and Cyber Security — written from the trenches.

11/6/2025

Implementing Github Actions CI for Go Applications

Implement Go Github Actions Continous Integrations with Unit Tests and Linting.

GoCI/CDGitHub Actions
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11/5/2025

Building faster Backend Go Apps with Redis

Learn how to boost the performance of your Go backend by integrating Redis for caching, session management, and rate limiting to achieve faster, more scalable applications.

GoRedisPerformance
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Featured Projects

Production and portfolio projects across Go Backend Engineering, DevOps, AI/ML, and Cyber Security — including real-world systems shipped at Astra Otoparts.

⭐ Production Grade Projects
Production Systems

⭐ Production Grade Projects

Production-grade distributed systems, industrial AI pipelines, threat intelligence platforms, and high-concurrency microservices shipped across enterprise, freelance, and research domains.

GoDistributed SystemsMicroservicesNext.jsPyTorch
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Backend Engineering
Backend Engineering Demos

Backend Engineering

Hands-on production patterns and code snippets in Go covering gRPC microservices, RabbitMQ work queues, Redis caching with JWT token rotation, Gemini LLM integrations, and automated unit testing with Mockery.

GoGingRPCRabbitMQRedis
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DevOps, Cloud Computing & Networking Projects
DevOps & Cloud Lab

DevOps, Cloud Computing & Networking Projects

A bunch of DevOps, Cloud Computing, Networking & Operating Systems projects.

DockerTerraformAWSEC2S3
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Cyber Security: Penetration Testing & DevSecOps
Security & Pentest

Cyber Security: Penetration Testing & DevSecOps

Offensive security engagements, threat intelligence pipelines, SIEM/IDS implementations, honeypots, malware analysis, and automated DevSecOps static/dynamic scanning.

Cyber SecurityPenetration TestingDevSecOpsThreat IntelligenceSIEM
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