Looking for a job

Devin User

@devinuser4

Java Backend Developer at Byterise building secure integrations and configuration platforms for internal business units and external services.

Malaysia

Message

What I'm looking for

I’m looking for remote Java Backend Developer or Software Engineer opportunities with international teams. I’m fully flexible to align my working hours with the company’s official time zone and team schedule.

At Byterise, I developed Spring Boot microservices for user lifecycle management, operational workflows, campaigns, and internal administration. I also built a centralized configuration and credential-management platform that lets downstream systems retrieve published settings securely.

At iSoftStone, I developed backend services for enterprise document, workflow, AI-assisted search, and cloud-data platforms. On the document management project, I integrated Elasticsearch full-text search, improving retrieval speed by more than 60%.

Earlier, I developed backend services for enterprise learning and mobile e-commerce platforms, including learning workflows serving more than 100,000 employees and selected commerce APIs whose response times improved by about 50%. I’m based in Malaysia and open to remote Java Backend Developer or Software Engineer opportunities with international teams, with flexibility to align my working hours to the team’s time zone.

Experience

Work history, roles, and key accomplishments

Java Backend Developer

Byterise

May 2025 - Sep 2026 (1 year 4 months)

Developed Spring Boot microservices for user lifecycle management, centralized configuration, operational workflows, configurable campaigns, and internal administration tools. Built secure multi-system integrations using request signing, encrypted payloads, and distributed locking.

Java Spring Boot MySQL Redis Distributed Locking Idempotency REST APIs Microservices

Java Backend Developer

iSoftStone

Mar 2023 - Apr 2025 (2 years 1 month)

Developed Java/Spring Boot backend services for enterprise document, workflow, AI-assisted search, and cloud-data platforms using REST APIs and microservice architecture. Optimized selected database query paths by up to 40%.

Java Spring Boot Kafka RabbitMQ MySQL PostgreSQL MongoDB Elasticsearch OAuth JWT RBAC Docker CI CD Prometheus Grafana ELK

Java Backend Developer

Beijing Zhixueyun Technology Co., Ltd.

Mar 2021 - Feb 2023 (1 year 11 months)

Developed core backend services for a large enterprise learning platform covering courses, progress tracking, exams, notifications, user statistics, and learning paths. Integrated enterprise SSO and HR systems and optimized MySQL/Redis access patterns for a platform serving 100,000+ employees.

Java Spring Boot MyBatis MySQL Redis SSO Scheduled tasks ELK

Java Backend Developer

Shenzhen Qianhai Information Technology Co., Ltd.

Mar 2018 - Feb 2021 (2 years 11 months)

Developed Spring Boot backend services for a mobile e-commerce platform covering product, cart, order, promotion, user, and operations modules. Optimized MySQL and Redis paths with about 50% response-time improvement on selected APIs.

Java Spring Boot MyBatis MySQL Redis REST APIs Transaction Processing

Java Backend Developer

Henan UnionTech Technology Co., Ltd.

May 2016 - Feb 2018 (1 year 9 months)

Developed RESTful backend services for a professional content and information platform, including publishing, comments, subscriptions, Q&A, user profiles, RBAC, and Elasticsearch-based search.

Java Spring Boot REST APIs RBAC Elasticsearch