Особисті дані приховані

Ivan Kozka
Location: Kyiv, Ukraine
Position: Site Reliability Engineering Team Lead
Email: [відкрити контакти](див. вище в блоці «контактна інформація»)
Telegram: @desoliture
LinkedIn: [відкрити контакти](див. вище в блоці «контактна інформація»)

About
Experienced Software Engineer and SRE Team Lead specializing in high-load
distributed systems, reliability engineering, backend architecture, and infrastructure
automation. Contributed to scalable Java solutions, cross-region architectures, and
led reliability initiatives to improve observability and reduce incidents. Passionate
about engineering excellence, process automation, and mentoring.

Technical Skills
Programming Languages: Java (8–17), Python, Lua, Kotlin

Frameworks & Technologies: Spring Framework (Boot, Data, Security, Cloud),
Hibernate, JUnit, Mockito, Testcontainers, AWS SDK

DevOps & Cloud: AWS (S3, RDS, Lambda, EC2, EKS, MemoryDB,
CodePipeline, CodeBuild, CloudWatch), Terraform, Terragrunt, Docker,
Kubernetes

Monitoring & Observability: Prometheus, Grafana, OpenSearch/Kibana,
PagerDuty

Databases: MySQL, PostgreSQL, Redis (MemoryDB), ClickHouse

Messaging & Streaming: Kafka, RabbitMQ

CI/CD: AWS CodePipeline, GitLab CI/CD

Other Tools: Jira, Confluence, Git, SonarQube
Experience
Evoplay Entertainment — Site Reliability Engineering Team Lead

Kyiv, Ukraine | June 2025 – Present

Responsibilities:

●​ Ensure product stability, uptime, and service continuity across distributed
environments.
●​ Oversee L2–L3 support processes, including technical investigations and
triage between support and engineering teams.
●​ Lead reliability and operational governance across infrastructure,
observability, and automation.
●​ Drive cross-company automation initiatives (alerting, fraud monitoring,
synthetic transactions, analytics data streaming).
●​ Maintain and improve security and reliability standards through monitoring,
metrics, and documentation quality.
●​ Manage and mentor a team of two SRE engineers, partially supervising
support and DevOps teams.

Achievements:

●​ Reduced major incidents by 40% through better monitoring, alerting, and
process standardization.
●​ Introduced company-wide observability improvements with dozens of new
metrics and alerts.
●​ Implemented automation pipelines for game certification preparation,
reducing manual effort and time.
●​ Improved fraud monitoring processes, increasing accuracy and detection
speed.
●​ Recovered critical analytics data (10+ billion events) after a system failure,
preserving business continuity and financial accuracy.

Tech Stack: Prometheus, Grafana, AWS CloudWatch, Terraform, Terragrunt,
Kubernetes, AWS Lambda, ClickHouse, OpenSearch, CodePipeline, CodeBuild,
PagerDuty, Python, Kotlin
Evoplay Entertainment — Senior Software Engineer

Kyiv, Ukraine | January 2023 – June 2025

Projects and Responsibilities:

●​ Successfully led backend development of a distributed in-game activities
platform, supporting large-scale leaderboards, events, and prize systems.
●​ Designed and implemented a domain-specific payment system with
multi-region transaction processing and detailed customer API
documentation.
●​ Migrated legacy services to a modern Java/Spring/AWS microservice
architecture, improving scalability and maintainability.
●​ Optimized DB operations by switching core services from MySQL to Redis
(MemoryDB), reducing response latency significantly.
●​ Mentored developers in distributed microservices design, CI/CD, and
database optimization.

Tech Stack: Java 17, Spring Boot, Hibernate, Python, Redis (MemoryDB),
MySQL, AWS (S3, RDS, Lambda), Docker, Kubernetes, gRPC, Terraform

ThingsBoard Inc. — Java Developer

Kyiv, Ukraine | November 2020 – November 2022

●​ Developed new features for an open-source IoT platform supporting
real-time analytics and time-series data processing.
●​ Led small customer projects and tailored the platform to specific business
needs.
●​ Improved database query performance and contributed to public
documentation.

Tech Stack: Java 11, Spring Boot, PostgreSQL, Redis, Docker, Kafka, RabbitMQ,
Python
Education
Master of Software Engineering (in progress) - National University “KAI” (ex.
NAU), Kyiv, 2024–2025

Bachelor of Software Engineering - National Aviation University, Kyiv,
2017–2021

Languages
English: B2

Ukrainian: Native