Open to opportunities

Kuanysh Mateyev

@kuanyshmateyev

Message

Java backend engineer building high-load microservices with Kafka, IBM MQ, and Spring Boot.

Kazakhstan

Message

What I'm looking for

I’m looking for remote worldwide (or on-site) opportunities where I can build and scale Java/Spring Boot microservices for high-load systems, own REST/event-driven integrations (Kafka, IBM MQ), and keep strong test coverage and clean architecture.

I’m a backend engineer with 4+ years of commercial experience building microservices for high-load production systems. I specialize in Java/Spring Boot, RESTful APIs, and event-driven architecture, delivering scalable services for 11.5M+ users in telecom and billing domains.

In my roles, I’ve designed and implemented Java microservices, led migrations (Java 11 to Java 17), and maintained 90%+ unit and integration test coverage. I also build reliable integrations using Kafka, IBM MQ, and SOAP/WSDL—working closely with QA, analysts, DevOps, PM, DBA, and international teams in Agile/Scrum.

Experience

Work history, roles, and key accomplishments

Software Engineer

QazCode

Aug 2023 - Dec 2025 (2 years 4 months)

Developed Java 11/17/21 Spring Boot microservices for a high-load billing platform serving 11.5M+ users, replacing a legacy vendor solution, and integrated business logic via Kafka and IBM MQ. Drove 90%+ unit/integration test coverage and led the migration from Java 11 to Java 17, including documentation and internal tech talks.

Java Spring Boot Microservices REST APIs Apache Kafka PostgreSQL Redis Docker Kubernetes

Software Engineer

Beeline Kazakhstan

Nov 2021 - Jul 2023 (1 year 8 months)

Built backend services in an ESB team during a migration from monolithic systems to Spring Boot microservices, delivering RESTful integrations. Developed a SOAP/WSDL unwanted call blocking service with IBM MQ and a diagnostics service for 700K+ customers that reduced call-center load by 60% and accelerated incident resolution.

Java Spring Boot REST APIs WSDL PostgreSQL Docker Gradle Kotest Mockito

Education

Degrees, certifications, and relevant coursework

International Information Technology University (IITU)

Bachelor's Degree in Information Systems, Information Systems

Activities and societies: ACM ICPC — quarter-finalist, Kazakhstan Subregional Championship.

Earned a Bachelor's Degree in Information Systems at International Information Technology University (IITU) in Almaty (2022), with coursework in software engineering, algorithms, databases, and system design.