Senior software engineering
Kostiantyn Mironchyk
Senior Full Stack Developer
Summary
Senior software engineer with 15+ years of experience designing and operating Java-based enterprise systems and full-stack applications. Specialized in Spring Boot microservices, cloud infrastructure, and distributed systems, with hands-on experience across Angular, Node.js, AWS, Kubernetes, Kafka, and Terraform. Led cloud migration and platform modernization work at Allianz Technology while mentoring engineers and improving deployment and operational performance.
Experience
Senior Full Stack Developer
Allianz Technology
Oct 2018 - Nov 2025
Bangkok, Thailand
- Engineered and maintained critical microservices for a roadside assistance platform using Java, Spring Boot, Node.js, and Angular.
- Spearheaded an AWS infrastructure migration using Docker, Kubernetes, and Terraform, reducing deployment time by 40%.
- Integrated real-time tracking with Kafka and RabbitMQ, increasing dispatch efficiency by 30%.
- Led code reviews and Agile ceremonies and mentored junior engineers, improving team velocity by 20%.
Stack: Java, Spring Boot, Node.js, Angular, AWS, Docker, Kubernetes, Terraform, Kafka, RabbitMQ
Earlier Java Developer Roles
Mobile Technologies
Dec 2016 - Oct 2018
Bangkok, Thailand
- Developed key components for a telecom management system using Java, Spring, Hibernate, and JSF.
- Improved application stability by resolving critical defects and delivering features with cross-functional teams.
Stack: Java, Spring, Hibernate, JSF
Freelance Backend Developer
Independent
Mar 2016 - Dec 2016
Phuket, Thailand
- Built REST APIs for a dating platform using Node.js, Express.js, and PostgreSQL.
- Designed and deployed secure, scalable backend services for a cryptocurrency wallet application.
Stack: Node.js, Express.js, PostgreSQL
Java Developer
AxiomSL, Accepic, Intexcs, Provectus IT, CHI Software, NIX Solutions, Avek
2010 - 2016
Ukraine
- Contributed throughout the software development lifecycle on enterprise software projects.
- Developed backend capabilities with Java, JSF, Hibernate, Oracle, and JBoss.
- Improved performance and resolved defects across mission-critical applications.
Stack: Java, JSF, Hibernate, Oracle, JBoss
Technical skills
Languages
Java · JavaScript · TypeScript · Node.js · HTML · CSS
Backend
Spring Boot · Hibernate · Express.js · JSF · REST APIs · Microservices
Frontend
Angular
Cloud & DevOps
AWS · Docker · Kubernetes · Terraform · Helm · Jenkins · Git · CI/CD
Data
PostgreSQL · MySQL · MongoDB · Redis · Oracle
Messaging & Observability
Kafka · RabbitMQ · ELK Stack
Practices
TDD · Agile · Scrum · Mentoring · Code Review
Education
Bachelor's Degree in Computer Science
Kharkiv National University of Radio Electronics 2006 - 2011