Backend Software Engineer

Yahor Liavonenka

Building reliable event-driven backend systems with Java, Kafka, and AWS.

Backend Software Engineer with 5+ years of commercial experience across FinTech, InsurTech, and telecommunications, specialising in real-time event processing, privacy workflows, third-party integrations, infrastructure as code, and production diagnostics.

Location
Wrocław, Poland
Experience
5+ years
Focus
Java & AWS backend
Working style
Remote B2B

Experience

Backend Software Engineer

Godel Technologies Europe

PresentWrocław, Poland · Hybrid

Embedded backend engineer delivering production systems for international client teams in English.

Skills & education

Capabilities

Backend engineering

  • Java
  • Spring Boot
  • Python
  • REST APIs
  • Microservices
  • Event-driven architecture

Messaging & event streaming

  • Confluent Kafka
  • ActiveMQ
  • SQS
  • SNS
  • EventBridge

Databases & analytics

  • PostgreSQL
  • Amazon Redshift
  • S3

AWS cloud

  • AWS Lambda
  • EC2
  • ECS
  • ECR
  • EKS
  • IAM
  • Secrets Manager

Infrastructure & delivery

  • Terraform
  • Docker
  • Kubernetes
  • GitLab CI/CD
  • GitLab OIDC
  • Linux

Observability

  • Prometheus
  • Grafana
  • CloudWatch

Engineering practices

  • Solution design
  • Code review
  • Mentoring

AI-assisted engineering

  • OpenAI Codex
  • Claude Code
  • Implementation
  • Refactoring
  • Testing
  • Diagnostics
  • Documentation

Education

Diploma of Secondary Specialized Education

Programmable Mobile Systems · Electronics Technician

Gomel State Machine-Building College

2016-09 — 2020-06

Current status

Open to remote B2B opportunities · Two-month notice period

Languages

Russian
Native
Belarusian
Native
English
Professional working proficiency, used daily in international teams

Contact

Building reliable systems together

Let’s talk about the next backend challenge.

Based in Wrocław, Poland and open to remote B2B opportunities.