// Hello, I'm

Hamza Plojovic

|

Building infrastructure that lets AI agents run reliably at scale

Download CV

// About Me

About Me

Serbia (Remote)

I'm a founding engineer and backend lead with 5+ years shipping production systems. Currently at Lyntel, where I've scaled an eSIM platform from 5,000 to 100,000+ users.

I build the backend infrastructure, agent integrations, and internal tooling that keeps things running—including MCP-based systems for automated log analysis and developer workflows. I've worked on AI agent security (prompt injection, data leakage), built APIs optimized for LLM consumption, and created tools that reduced support tickets by 70%.

When I'm not coding, I'm probably reading, listening to music, or playing board games.

PythonFastAPIPydanticAIMCPKubernetes

0+

Years Experience

0k+

Users Served

0%

Uptime

// Experience

Experience

Lyntel SolutionseSIM App
Sep 2022 – Present
Remote

Founding Engineer → Backend Lead

  • Lead team of 3 engineers. Scaled infrastructure from 5k to 100k+ users in 12 months
  • Backend handles 15,000 requests/day at 100% uptime
  • Built API layer for Lynn AI agent—reduced support tickets by 70%
  • Created MCP-based Logfire agent for auto Jira tickets with codebase-aware code suggestions
  • Worked with QA on security: prompt injection, data leakage, XSS, SQL injection guardrails
PythonFastAPIKubernetesDockerPydanticAIMCPLogfire
Chatbie
Feb 2023 – Aug 2023
Remote

Full Stack Developer

  • Built conversational AI platform for business chatbots with booking and info retrieval
  • Set up AWS infrastructure from scratch: Lambda, API Gateway, DynamoDB
  • Handled DevOps, deployment pipelines, and environment management
ReactTypeScriptExpress.jsGraphQLHasuraAWS
CentarNIT
Jun 2021 – Nov 2022
Serbia

Full Stack Developer

  • Built client projects with Django/FastAPI backends and React frontends
  • Created real estate platform with map-based search, filtering, user management
  • Developed internal tools for project tracking
DjangoFastAPIReactPostgreSQLDigitalOcean

// Projects

Projects

Lyntel

Lynn AI Agent

AI-powered support agent for eSIM customers. Handles lookups, purchase status, usage queries. Reduced support tickets by 70%.

PydanticAIFastAPILLM Integration
Internal Tool

MCP Logfire Agent

Automatically creates Jira tickets from production logs. Provides codebase-aware suggestions for fixes and performance optimizations.

MCPLogfireJira APIPython
Production System

Lyntel Backend

eSIM platform backend serving 100k+ users. Handles 15k requests/day with 100% uptime. FastAPI microservices on Kubernetes.

FastAPIKubernetesDockerPostgreSQL
Startup

Chatbie Platform

Conversational AI platform enabling businesses to embed chatbots with booking flows and FAQ handling. Serverless AWS architecture.

AWS LambdaGraphQLReactTypeScript
Open SourceGitHub

mp3_from_playlist

CLI tool to download YouTube playlists as MP3 files. 15+ GitHub stars.

PythonCLIOpen Source
Security ResearchGitHub

Reverse Shell

Educational implementation of a reverse shell for learning network security concepts.

PythonSecurityNetworking

// Skills

Skills & Tech Stack

Languages & Frameworks

Python
FastAPI
Django
JavaScript
TypeScript
React
Node.js
Express.js

AI & Agents

MCP
PydanticAI
LangChain
RAG
pgvector
Logfire
LLM Security

Infrastructure

Docker
Kubernetes
AWS
PostgreSQL
Redis
CI/CD
Linux

Tools & Other

Git
REST APIs
GraphQL
Celery
Pydantic
SQLModel

// Contact

Let's Build Something

Have a project in mind?

Let's talk. I'm always open to discussing new projects, creative ideas, or opportunities to be part of your vision.

Email

hamzaplojovic9@gmail.com

Location

Based in Serbia, working remotely worldwide

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