Professional Profile

I am a Backend Developer and SRE Engineer with a focus on building and optimizing large-scale distributed systems. My work involves both developing new high-performance services and refactoring existing ones to improve efficiency and reliability.

Core Tech Stack:

  • Languages: PHP, TypeScript (Node.js), Bash.
  • Databases: MariaDB, MySQL, Redis, MemoryDB.
  • Orchestration: Kubernetes (EKS), Docker, ECS.

Cloud Infrastructure (AWS):

I have extensive experience architecting solutions in AWS, utilizing a wide range of services including SQS, SNS, EventBridge, S3, RDS, EC2, ECR, and ALB.

I also specialize in Cloud Security & Governance (WAF, Inspector, GuardDuty) and Cloud Cost Optimization, ensuring infrastructure is both secure and cost-efficient.

DevOps & Automation:

  • IaC: Terraform, Packer.
  • CI/CD: GitHub Actions & ArgoCD (GitOps).

Certifications

  • 🛡️ AWS Certified Solutions Architect – Associate
  • 🛡️ AWS Certified Cloud Practitioner
  • 🛡️ Certified Kubernetes Administrator
Connect on LinkedIn

Hobby: Radio & Electronics

In my spare time, I am an avid ham radio operator (LZ1ADJ) and electronics enthusiast. I enjoy experimenting with IoT systems and embedded development as a personal passion, specifically working with STM32 and ESP32 microcontrollers.

One of my open-source projects is the CW Trainer, designed to help enthusiasts master Morse code.

Public SDR (Sofia, Bulgaria)

I host two SDR receivers located in Sofia, which you can access at: sdr-sofia.lz1adj.com

  • VHF: 144-146 MHz (Online 24/7).
  • HF: 20-meter band (Daytime) / 40-meter band (Nighttime).

To monitor propagation, I've developed a Telegram bot integrated with OpenWebRX. It automatically publishes decodes for digital modes like MSK144, FT8, and FT4, allowing me to track Tropospheric DX openings in real-time.

73! DE LZ1ADJ