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I am a versatile and results-driven developer with 6 years of experience designing, developing, and deploying robust financial and enterprise-grade applications. I thrive in Linux environments, focusing on security, reliability, and high performance. I build scalable systems using Java, Spring, Quarkus, and Apache Kafka, and I have hands-on experience integrating with ATM networks, HSMs, and payment protocols such as ISO8583, ISO20022, EMV, Visa, and Mastercard.…I am a versatile and results-driven developer with 6 years of experience designing, developing, and deploying robust financial and enterprise-grade applications. I thrive in Linux environments, focusing on security, reliability, and high performance. I build scalable systems using Java, Spring, Quarkus, and Apache Kafka, and I have hands-on experience integrating with ATM networks, HSMs, and payment protocols such as ISO8583, ISO20022, EMV, Visa, and Mastercard.

Imat Rohimat

Back-End Developer, Web Developer, Programmer, +2

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I am a versatile and results-driven developer with 6 years of experience designing, developing, and deploying robust financial and enterprise-grade applications. I thrive in Linux environments, focusing on security, reliability, and high performance. I build scalable systems using Java, Spring, Quarkus, and Apache Kafka, and I have hands-on experience integrating with ATM networks, HSMs, and payment protocols such as ISO8583, ISO20022, EMV, Visa, and Mastercard.…I am a versatile and results-driven developer with 6 years of experience designing, developing, and deploying robust financial and enterprise-grade applications. I thrive in Linux environments, focusing on security, reliability, and high performance. I build scalable systems using Java, Spring, Quarkus, and Apache Kafka, and I have hands-on experience integrating with ATM networks, HSMs, and payment protocols such as ISO8583, ISO20022, EMV, Visa, and Mastercard.

Available to hire

I am a versatile and results-driven developer with 6 years of experience designing, developing, and deploying robust financial and enterprise-grade applications.

I thrive in Linux environments, focusing on security, reliability, and high performance. I build scalable systems using Java, Spring, Quarkus, and Apache Kafka, and I have hands-on experience integrating with ATM networks, HSMs, and payment protocols such as ISO8583, ISO20022, EMV, Visa, and Mastercard.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Language

Indonesian

Advanced

English

Advanced

Work Experience

ATM Switching Programmer at NCR ATLEOS

January 1, 2023 - December 31, 2025

Design, develop and implement switching projects for UOB Bank Thailand; on-site production support; configured ISO20022 interchange with network partners; configured ISO8583 for VISA and Mastercard transactions; implemented HSM key changes; managed store-and-forward for notifications and reversals; built with Spring Boot/Spring Cloud, Oracle, ActiveMQ; developed FINSim and a Message Simulator for testing.

ATM Switching Programmer at PT Sarana Pactindo

January 1, 2021 - December 31, 2023

Built Java modules using Spring Boot; debug and resolve technical issues; documented system; gathered system and user requirements; implemented Spring Boot/Spring Cloud, RabbitMQ, Redis, MySQL; API design / microservices / SOA integration and security; developed run flows and services on ATM/CRM/CDM channels based on APTRA NDC Protocol guidelines; implemented ISO8583 messaging.

Back End Developer at PT Barrans Global Mandiri, IFG Life Insurance

January 1, 2019 - December 31, 2019

Developed backend services using Java and Quarkus for IFG Life Insurance; designed scalable, secure backend architectures; built RESTful APIs to support frontend applications and third-party services; ensured high performance, reliability, and security; collaborated with cross-functional teams.

Java Developer at PT Tiga Daya Digital Indonesia

January 1, 2019 - December 31, 2021

Developed Java modules for the Daya Dealer Management System (DDMS); implemented Spring Boot / Spring Cloud, PostgreSQL; designed RESTful APIs; performed testing and debugging; produced documentation and reports; gathered system and user requirements; containerized applications and followed best practices for deployment.