Stefan Burgić

Backend Team Lead

Belgrade, Serbia

Backend Team Lead with 8+ years of experience building scalable distributed systems across fintech, iGaming, renewable energy, and enterprise domains. Lead engineering teams and drive architecture decisions on high-availability production systems.

8+

Years Experience

10+

Projects Shipped

5+

Industries

20+

Technologies

01. — ABOUT

About

Backend Team Lead with 8+ years of experience building scalable distributed systems across fintech, iGaming, renewable energy, and enterprise domains. Lead engineering teams and drive architecture decisions on high-availability production systems.

I own technical direction end-to-end — from initial system design through delivery — specializing in distributed architectures, domain-driven development, and aligning engineering with business outcomes.

02. — EXPERIENCE

Experience

Mar 2022Present

Belgrade

SOLID Code

Company Owner / Backend Team Lead

Projects:

  • BoyleSports
  • Software management for renewable industry & electricians
  • Dynamic Life
  • Led backend teams across multiple concurrent enterprise projects in fintech, iGaming, and renewable energy — driving architecture decisions and keeping engineering aligned with business goals
  • Designed distributed, event-driven backend systems using RabbitMQ and Redis for high-availability operational platforms serving production workloads at scale
  • Owned end-to-end backend architecture for BoyleSports — Ireland's largest independent bookmaker — ensuring system reliability and scalability under high-traffic conditions
  • Drove adoption of DDD, CQRS, and clean architecture practices across all projects, reducing coupling and improving long-term maintainability
  • Conducted full recruitment cycles — technical screening, interviews, and structured evaluation — and onboarded engineers into established codebases and team workflows
  • Acted as bridge between technical teams and non-technical stakeholders, translating business requirements into system-level decisions
C# .NETJavaSpringHibernateMySQLPostgreSQLElasticSearchRabbitMQRedisAWS EC2AWS SESAWS S3AWS SQSDockerDDDCQRS

Aug 2021Mar 2022

Belgrade

Europoint System DOO

Senior Software Engineer

Projects:

  • System for payment orders
  • Defined microservice architecture and bounded contexts for a large-scale payment processing system serving one of Serbia's largest payment providers
  • Modeled domain aggregates and state machines using DDD and Event Sourcing to ensure full auditability and consistency across payment flows
  • Integrated Dilisense API for real-time anti-money laundering compliance within the transaction processing pipeline
  • Collaborated with business analysts to translate complex regulatory requirements into precise technical specifications
JavaSpringHibernateAxon frameworkRabbitMQMicrosoft SQL ServerElasticSearchDockerCQRSDDDEvent Sourcing

Sep 2019Jul 2021

Belgrade

Smart Code House DOO

Software Engineer

Projects:

  • Document search engine
  • Application for retail network management
  • Designed system architecture and built a document search platform enabling multi-parameter search across people, organizations, and vessels using ElasticSearch
  • Delivered a retail network management platform for monitoring field commercialists, their tasks, visits, and exchange office statuses across a distributed network
  • Implemented distributed messaging infrastructure using RabbitMQ and managed containerized deployments across development and production environments
C# .NET CoreEF CoreASP.NET Core MVCRabbitMQMicrosoft SQL ServerElasticSearchDocker

Apr 2018Sep 2019

Belgrade

Application Software Partner

Software Engineer

Projects:

  • Application for managing losses and loss calculator
  • Application for merging duplicate person records
  • Delivered loss management tooling and a duplicate record resolution system for Sava Osiguranje, one of Serbia's largest insurance companies
  • Integrated new components into a complex legacy insurance platform while maintaining stability across existing workflows
  • Contributed to CI/CD pipeline improvements using Jenkins, reducing manual deployment overhead
C# .NETEntity FrameworkASP.NET Core MVCKnockout.jsRabbitMQJenkinsMicrosoft SQL ServerElasticSearch

Jun 2017Jun 2019

Belgrade

Faculty of Computing

Teaching Assistant

  • Taught and evaluated students across three courses: Algorithms and Data Structures, Object-Oriented Programming (Java), and Introduction to Programming (C)
  • Composed and reviewed assessments, providing structured feedback to improve student outcomes

03. — PROJECTS

Projects

Side projects and independent work

Tortue Framework

3

Jun 2022 – Aug 2022

Defined and built a microservice for manipulating Tortue objects within a flexible website building framework. Owned the API design and service architecture.

Nest.jsMongooseMongoDBDocker

WevoAI

4

Jun 2021 – Jan 2022

Delivered full backend architecture for a mental health mobile application — questionnaire storage, retrieval, and personalized solution matching for users with anxiety.

C# .NET CoreMongoDBDocker

AllRepairmen

2

Sep 2020 – Apr 2021

Designed business model, system architecture, and infrastructure from scratch for an online platform connecting repairmen with clients. Included landing page, web app, and back office.

C# .NET CoreRabbitMQMongoDBDocker

ICICB CryptoExchange

3

May 2019 – Sep 2019

Architected and built an online crypto and fiat currency exchange from scratch — business model, distributed backend, and full infrastructure setup.

C# .NET CorePostgreSQLRedisDocker

04. — SKILLS

Skills

Backend

.NET / ASP.NET CoreJava / Spring BootNode.js / Nest.jsTypeScriptEntity FrameworkHibernateAxon Framework

Architecture

MicroservicesDDDCQRSEvent SourcingClean ArchitectureEvent-Driven ArchitectureDistributed Systems

Cloud & DevOps

AWS (EC2, S3, SQS, SES)DockerRabbitMQRedisCI/CDJenkins

Databases

PostgreSQLSQL ServerMongoDBElasticSearchMySQL

05. — EDUCATION

Education

Union University

Faculty of Computing

Bachelor's degree in Computer Science

Thesis: “Clean Architecture and SOLID Principles

2015 - 2021

06. — AWARDS

Awards

RAF Hackathon — 1st Place

Dec 2019

Developed application for improving surveys with an Instagram stories plugin for creating surveys via Instagram.

National Competition in Informatics — Honourable Mention

2013

National-level competition in informatics.

National Competition in Informatics — Participant

2015, 2014, 2012

Participated in national-level informatics competitions.

07. — CONTACT

Contact

Let's work together.