Java Backend Engineer

TIMESCONSULT; Kuala Lumpur; On-site; MYR 72,000 - 120,000; Full time

Job summary

TIMESCONSULT in Kuala Lumpur, Malaysia seeks a Java backend engineer to lead backend design for our CRM and trading support systems. You will own core services built with Java and Spring Cloud and collaborate with DevOps and product teams to deliver reliable services.

The role emphasizes handling high concurrency with low latency, using MySQL/PostgreSQL, Redis, and Kafka for data processing and messaging. You will optimize performance and mentor junior engineers.

Qualifications

• Bachelor's degree in Computer Science or related field.
• 1–3 years Java backend development experience, preferably in FinTech or trading systems.
• Strong expertise in Java concurrency and multithreading.
• Hands-on experience with Spring Cloud microservices.
• Strong experience with MySQL and PostgreSQL, including complex SQL optimization.
• Experience with Redis and Kafka for reliability and throughput.
• Solid understanding of payment gateway integration, security, and callbacks.
• Strong system ownership and architectural thinking.

Responsibilities

• Lead backend design and development for CRM and trading systems.
• Design and maintain integration services with MT4/MT5 trading systems.
• Architect and develop payment gateway integrations.
• Design and implement internal and external APIs for campaigns, promotions, and rewards.
• Own and optimize core backend services built with Java and Spring Cloud.
• Ensure high concurrency, low latency, and high availability across systems.
• Optimize performance: thread pools, JVM, DB, caching, async processing.
• Collaborate with DevOps, operations, risk, and product teams.
• Review code, define standards, and mentor junior engineers.
• Troubleshoot production issues and lead system refactoring.

Skills

Java concurrency

JVM performance tuning

Spring Cloud

MySQL

PostgreSQL

Redis

Kafka

Payment gateway integration

Architecture thinking

Troubleshooting

Education

Bachelor's degree in Computer Science or related fields

Tools

Spring Cloud

MySQL

PostgreSQL

Redis

Kafka

Payment gateway integration

Job description

• Lead backend design and development for self-developed CRM systems, supporting customer lifecycle, trading activities, and internal operations.
• Design and maintain integration services with MT4 / MT5 trading systems, including:
  • Account and user data.
  • Trade, order, position, and balance data.
  • Real-time and historical synchronization.
• Architect and develop payment gateway integrations, covering:
  • Deposits and withdrawals.
  • Reconciliation and exception handling.
• Design and implement internal and external APIs for:
  • Marketing campaigns and promotions.
  • Bonus, rewards, and activity systems.
  • Business and operational projects.
• Own and optimize core backend services built with Java and Spring Cloud microservices.
• Ensure high concurrency, low latency, and high availability across trading and CRM systems.
• Optimize system performance through:
  • Thread pool and concurrency tuning.
  • JVM and database optimization.
  • Caching and asynchronous processing.
• Work closely with DevOps, operations, risk, and product teams to deliver reliable services.
• Review code, define standards, and mentor junior engineers.
• Troubleshoot production issues and lead system refactoring efforts.

JOB REQUIREMENTS

• Bachelor’s degree or above in Computer Science or related fields.
• 1-3 years of Java backend development experience, preferably in FinTech or trading systems.
• Strong expertise in:
  • Java concurrency and multithreading.
  • JVM performance tuning.
• Hands-on experience with Spring Cloud microservices.
• Strong experience with MySQL / PostgreSQL, including:
  • Complex SQL optimization.
  • Index design and large-table handling.
• Practical experience with Redis (distributed locks, caching strategies) and Kafka (reliability and throughput).
• Solid understanding of payment gateway integration, including security and callback processing.
• Strong system ownership, troubleshooting, and architectural thinking.