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Alimzhan Imangazin

@alimzhanimangazin

Senior Java Developer at BTS Digital, building Telecom Docs’ electronic document workflows and securing services with Keycloak.

Kazakhstan

Message

At BTS Digital, I build and maintain backend services for Telecom Docs, an enterprise electronic document management system. My work covers document routing, approval workflows, versioning, status tracking, and access control.

I secured Telecom Docs with Keycloak, implementing JWT validation and role-based access control. I also designed its PostgreSQL data layer, REST APIs, and schema migrations.

At QazCloud LLP, I developed Spring Boot services and integrated them with Kazakhstan’s national eGov platform, including QR-code signing with electronic digital signatures. I also worked on asynchronous messaging, Kubernetes deployments, and API integrations.

Experience

Work history, roles, and key accomplishments

Current

Senior Java Developer

Current

BTS Digital

Jan 2023 - Present (3 years 10 months)

Build and maintain core backend services of the Telecom Docs platform on Java 17 and Spring Boot, covering document creation, routing, approval workflows, versioning, and access control. Secured the platform with Keycloak and designed the PostgreSQL data layer with Spring Data JPA and Liquibase.

Java 17 Spring Boot PostgreSQL Spring Data JPA Hibernate Liquibase Keycloak OAuth OpenID Connect JWT REST OpenAPI Docker Kubernetes GitLab CI CD Agile Scrum

Java Developer

QazCloud LLP

Jan 2021 - Dec 2023 (2 years 11 months)

Developed Spring Boot backend services with Spring Security, Spring Data JPA, and JDBC on PostgreSQL with Liquibase migrations. Integrated with Kazakhstan's national eGov platform and implemented asynchronous messaging with Kafka and RabbitMQ.