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REZ0AN/README.md

Hi, I'm Rezoan Ahmed Abir

Backend & Platform Engineer | Distributed Systems · Cloud Infrastructure · AI Systems · Low Level Systems

I'm a Backend Engineer interested in understanding and building the systems behind modern applications, from distributed backends and cloud infrastructure to LLM-powered applications.

My experience spans backend engineering, cloud-native applications, Kubernetes infrastructure, AI systems, and lower-level experimentation with Linux networking and virtualization.

  • 🔭 Working on Backend Engineering, Cloud Infrastructure, and AI-powered Systems
  • 🧪 Exploring Distributed Systems, HPC, Linux Internals, Virtualization, and Cloud-Native Infrastructure
  • 💬 Ask me about GO, FastAPI, Kubernetes/GKE, Agentic Workflows, AWS/GCP, or eBPF/XDP
  • 📫 Email · LinkedIn

What I'm Interested In

Distributed & Cloud Systems

Distributed architectures, container orchestration, Kubernetes, cloud infrastructure, concurrency, reliability, and scalable backend systems.

Systems & Virtualization

Linux internals, eBPF/XDP, KVM/QEMU, Firecracker, gVisor, container runtimes, networking, and sandboxed execution.

AI Systems

LLM applications, agentic workflows, RAG pipelines, context-aware document processing, and infrastructure for running AI workloads safely and reliably.

High-Performance Computing

Parallel computing, performance optimization, resource management, and distributed computing infrastructure.


Skills

Languages
Python · Go · C/C++ · JavaScript/TypeScript

Backend & Application
FastAPI · Node.js · Gin · PostgreSQL · Redis · RabbitMQ

AI Engineering
LangChain · LangGraph · RAG · Vector Search · LLM Tooling & Agent Workflows

Cloud & Infrastructure
AWS · GCP · Kubernetes · Docker · Terraform · GitHub Actions · Harness CI/CD

AWS
Lambda · Step Functions · Bedrock · EC2 · S3 · RDS · ECR · VPC · IAM · Secrets Manager

GCP
GKE · GCS · IAM · VPC

Systems
Linux · eBPF/XDP · KVM/QEMU · Firecracker · gVisor · Container & Network Isolation


Engineering Experience

Backend & Application Engineering

Designing and developing backend services, REST APIs, database integrations, asynchronous workflows, and application architectures with an emphasis on maintainability, scalability, and reliability.

Cloud & Platform Engineering

Working with containerized applications, Kubernetes infrastructure, cloud services, CI/CD pipelines, storage systems, and deployment automation across AWS and GCP.

AI Systems Engineering

Building infrastructure and backend components for LLM-powered applications, including agentic workflows, tool integration, document processing, and secure code execution.

Systems & Infrastructure Exploration

Exploring Linux networking, virtualization, container isolation, and high-performance packet processing through hands-on implementations and experiments.


Recent Works

Secure Code Execution for AI Agents

Developed a Kubernetes-backed sandbox execution system using FastAPI, GKE, gVisor, Redis, GCS, and Python.

The system provisions isolated execution environments, stages files, executes generated Python code, manages sandbox lifecycle and concurrency, and handles generated artifacts.

Cloud & Backend Systems

Experience with backend services and cloud infrastructure across AWS and GCP, including serverless workloads, containerized applications, CI/CD pipelines, object storage, databases, and Kubernetes deployments.

Linux Networking & Virtualization

Hands-on implementations involving eBPF/XDP, SO_REUSEPORT, KVM/QEMU, Firecracker, and container isolation, focusing on how operating systems and networking components behave internally.


Featured Projects

Project Description
lb-xdp-poc Experimental load balancer using eBPF/XDP and Go to explore high-performance packet processing.
xdp-tutorials Hands-on exploration of XDP and eBPF using C and Go, documenting progressively deeper experiments.
SimpleBank Backend banking API built with Go, Gin, SQLC, PostgreSQL, authentication, and containerized deployment.
NutriNavigator Nutrition recommendation system combining personalized food recommendations with an organic food marketplace.

Currently Going Deeper

Distributed Systems · High-Performance Computing · Cloud Infrastructure · Linux Systems

Pinned Loading

  1. xdp-tutorials xdp-tutorials Public

    A learning approach of XDP from scratch with go and c. Also having some task which will be demonstrate in details in this Repository.

    C 2 2

  2. NutriNavigator NutriNavigator Public

    NutriNavigator is not just a nutritional recommendation system; it's also an e-commerce platform offering organic food products. Now working to dockerize it then host on azure or aws .

    JavaScript 1

  3. lb-xdp-poc lb-xdp-poc Public

    A custom LoadBalancer Using eBPF and xdp

    Go 2 1

  4. SimpleBank SimpleBank Public

    Go

  5. SimpleTodo SimpleTodo Public

    C#

  6. Multi-Threading-In-JAVA Multi-Threading-In-JAVA Public

    Java