Personal details

Gavrilo M. - Remote full-stack developer

Gavrilo M.

Lead Software Engineer
Based in: 🇧🇦 Bosnia and Herzegovina
Timezone: Belgrade (UTC+2)

About

Gavrilo is a backend engineer with 13+ years of experience building software across AAA games, SaaS, e-commerce, and Oil & Gas. He enjoys taking products from an idea to production: understanding the problem, designing the architecture, choosing technologies, and building systems that stay simple as they grow. Recently, he has focused on AWS serverless, distributed systems, .NET, DynamoDB, EventBridge, PostgreSQL, and technical leadership.

Work Experience

Senior Backend Engineer
Illuvium | Dec 2023 - Present
PostgreSQL
Elasticsearch
SNS
DynamoDB
CloudWatch
AWS Lambda
.NET
API Gateway

Sole backend engineer responsible for the architecture and implementation of several blockchain games.

  • Designed, built and operated the complete backend for Illuvium Deathmatch, from the first architecture decisions to production deployment.
  • Modelled game flows from state to state, including idempotency, caching, data storage, analytics tracking and operational tooling.
  • Designed the backend around roughly 100 Lambda functions, 3 APIs, SQS, EventBridge, OpenSearch and a single DynamoDB table using PK/SK access patterns.
  • Made architecture decisions around EventBridge, OpenSearch and backend data modelling.
  • Worked on Immutable zkEVM integration and modelled NFT data for the marketplace.
  • Owned the backend for Gauntlet from the first line of code until the project moved to GameLift servers.
  • Designed backend services for a new MMO, including scalability, concurrency and real-time processing concerns.
  • Reduced Lambda cold starts by upgrading to .NET 9 and removing AutoMapper.

Tech: .NET | AWS Lambda | API Gateway | DynamoDB | EventBridge | SQS | SNS | OpenSearch | PostgreSQL | CloudWatch | Immutable zkEVM

Lead Software Engineer
Rashtan DOO | May 2020 - Present
C#
MySQL
Azure
TypeScript
Firebase
Twilio
Ionic
React
GitHub Actions

Building products from scratch and leading architecture, backend development, cloud infrastructure and product direction.

  • Designed and built Dental Lab Guru, a SaaS platform used by dental labs in 6 countries.
  • Designed and built MVP-DB, a serverless multi-tenant PostgreSQL platform created because I needed it myself.
  • Led backend development while working with another engineer on the frontend; wrote large parts of the frontend when needed.
  • Re-architected Dental Lab Guru towards Node.js, EventBridge and event-driven workflows.
  • Implemented subscriptions, payments, notifications, real-time updates, deployments and CI/CD.
  • Worked directly with customers, including Rocket Lab in Ukraine, whose feedback shaped a lot of the product.

Tech: .NET | Node.js | React | AWS | Azure | PostgreSQL | MySQL | Docker | GitHub Actions | Azure DevOps

Projects

Illuvium Deathmatch
2026 | https://deathmatch.illuvium.io/
Elasticsearch
AWS DynamoDB
AWS Lambda
.NET
AWS
I designed and built the complete backend for Illuvium Deathmatch as the only backend engineer on the project. The backend is built on AWS serverless and handles matchmaking, game progression, rewards, leaderboards, analytics, blockchain integration and operational tooling. I designed the event-driven workflows, DynamoDB data model and Immutable zkEVM integration while working closely with the game team as the gameplay evolved. One of the biggest challenges was keeping the backend flexible enough to support constantly changing game rules without turning it into a maintenance nightmare. Technologies: .NET, AWS Lambda, API Gateway, DynamoDB, EventBridge, SQS, SNS, OpenSearch, PostgreSQL, Immutable zkEVM
Dental Lab Guru
2020 | https://www.dentallabguru.com/
Node.js
MySQL
PostgreSQL
TypeScript
Docker
React
DynamoDB
AWS Lambda
.NET
Dental Lab Guru is a SaaS platform for dental laboratories that helps manage cases, production, deadlines, deliveries, invoicing and communication. I designed and built the backend from scratch and later re-architected it towards Node.js and an event-driven architecture as the product grew. Besides development, I worked directly with customers to understand their workflows and decide which features should be built next. The most rewarding part has been seeing laboratories in different countries use the same product while continuously shaping it through their feedback. Technologies: .NET, Node.js, React, MySQL, AWS, EventBridge, SES, Docker

Education

SCHOOL OF ELECTRICAL ENGINEERING, UNIVERSITY OF BELGRADE
Master's degree・Control Systems and Robotics
Oct 2009 - Mar 2012
SCHOOL OF ELECTRICAL ENGINEERING, UNIVERSITY OF BELGRADE
Bachelor's degree・Control Systems and Robotics
Oct 2005 - Sep 2009

Certifications & Awards

Certified Cloud Architect using Microsoft Azure
Udacity | Mar 2022