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Maxim Severinovsky
Kyiv, Ukraine
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Senior Java Engineer
Senior Java developer with 10+ years of experience in backend development, system design,
and production systems.
Extensive experience in building scalable backend services, REST APIs, and
microservices-based systems.
Worked across healthcare, finance, gaming, and retail domains with focus on reliability and
maintainability.
Strong understanding of distributed systems, performance optimization, and production
support.
Open to remote opportunities.

Core Skills
Backend: Java (8–21, latest LTS), Spring, Spring Boot, Micronaut, Quarkus
Architecture: Microservices, distributed systems, REST APIs, service-oriented architecture
Databases: PostgreSQL, MySQL, Oracle, MongoDB, Redis
DevOps: Docker, CI/CD (Jenkins, GoCD, CircleCI), AWS (S3, EC2)
Practices: Performance tuning, production support, system redesign

Professional Experience
Independent Project (Backend) | Jan 2025 – Present
- Designed and implemented backend service using Java 21 and Spring Boot
- Built REST APIs and modular service architecture
- Applied clean architecture principles to improve maintainability and readability
- Used AI tools (ChatGPT, Copilot) to accelerate development and debugging
- Focused on code quality, simplicity, and consistency
Eleks — Senior Java Developer | Oct 2024 – Jan 2025
- Designed and implemented CLI tools for managing Kafka-based cloud services
- Worked with distributed systems and messaging infrastructure
- Contributed to Quarkus-based solutions and integrations
- Improved developer tooling and usability
Eleks — Senior Java Developer | Apr 2021 – Sep 2024
- Developed backend services for retail store system
- Designed REST APIs and service communication
- Performed performance testing using JMeter
- Identified and resolved performance bottlenecks
- Improved system stability and response times
Innovecs — Software Development Manager / Lead Engineer | Feb 2018 – Dec 2020
- Led team of 6 engineers in healthcare domain
- Coordinated development process and delivery
- Contributed to system redesign and migration towards microservices
- Worked on backend services and integrations
- Ensured code quality and development standards
Codeminders — Senior Java Developer | Aug 2017 – Dec 2017
- Redesigned messaging system backend (XMPP)
- Improved system performance and stability
- Refactored legacy components
Freelance — Senior Java Developer | Aug 2016 – Jun 2017
- Designed and implemented backend for corporate web application
- Delivered full-cycle development from design to deployment
Luxoft — Senior Java Developer | Nov 2015 – Jun 2016
- Developed backend for internal system (Deutsche Bank)
- Implemented REST services and integrations
- Worked within enterprise architecture constraints
Abakus — Senior Software Engineer | Apr 2014 – Oct 2015
- Designed framework for data ingestion from multiple sources (S3, FTP, cloud storage)
- Built data processing pipeline
- Worked with cloud infrastructure and APIs
- Participated in build and deployment processes
Ciklum — Team Lead / Scrum Master | 2011 – 2014
- Led team of up to 10 engineers
- Managed Scrum process and delivery
- Coordinated cross-team communication
- Participated in system redesign for gaming platform
GlobalLogic — Senior Java Developer | 2009 – 2011
- Developed LDAP-based SSO solution
- Integrated with Active Directory
- Worked on authentication and authorization systems

Education
Master’s Degree in Geophysics, Kyiv State University