Java Backend Developer (Payment & Wallet Systems)
DTC Academy Sdn. Bhd. · Kuala Lumpur, Malaysia ·
- Work mode
- Onsite
- Category
- Backend
- Experience
- 5+ years
DTC Academy Sdn. Bhd. · Kuala Lumpur, Malaysia ·
dtcpay · Kuala Lumpur, Malaysia
infinite Computer Solution · Singapore, Singapore
INFINITE COMPUTER SOLUTIONS PTE LTD · Singapore
DADACONSULTANTS PTE. LTD. · Singapore, Singapore
Design and build scalable Java backend microservices and APIs powering dtcpay's fiat and crypto payment and wallet systems, owning modules end-to-end from design through deployment. Core stack is Java/Spring Boot with MyBatis, MySQL/PostgreSQL, Redis, and message queues; fully onsite in Kuala Lumpur, requiring English and Mandarin.
dtcpay is a MAS licensed payment service provider that bridges traditional finance and digital assets. We enable businesses to accept and make payments in both fiat and digital currencies, delivering secure, efficient, and seamless payment experiences across borders. As we expand globally, we are shaping the future of digital payments. We are also recognised as one of Singapore’s Top 10 Startups in the LinkedIn Top Startups 2025 list, a reflection of our momentum and the exciting journey ahead for our team.
We are looking for a Java Backend Developer to design and develop scalable backend microservices and APIs that support our core payment and wallet systems. You will take ownership of assigned modules throughout the full development lifecycle, from technical design and implementation to testing and deployment.
Working closely with frontend engineers, QA, product teams, and senior engineers, you will help build reliable, secure, and high-performance backend solutions. This role is ideal for an experienced backend developer who enjoys solving complex technical challenges and delivering maintainable systems in a fast-paced fintech environment.
Independently design and develop scalable backend microservices and APIs for payment and wallet systems.
Own the end-to-end delivery of assigned backend modules, covering technical design, implementation, testing, and deployment.
Design and implement reliable solutions using Java, Spring Boot, MyBatis, and distributed system principles.
Develop and optimize RESTful APIs to support business requirements and system performance.
Design and optimize relational database schemas, indexing strategies, and SQL queries using MySQL or PostgreSQL.
Implement Redis caching strategies and message queue solutions to support asynchronous processing and high-concurrency workloads.
Apply knowledge of database internals, networking, application security, and system performance tuning to develop efficient backend services.
Participate in code reviews and follow established coding, architecture, and engineering standards.
Write clean, readable, maintainable, and well-structured code.
Contribute to continuous improvements in backend development practices, system reliability, and performance.
Troubleshoot and resolve issues within owned backend services, ensuring timely investigation and resolution.
Escalate architecture-level or cross-system issues to senior engineers when required.
Collaborate with frontend engineers, QA, product teams, and senior engineers to define API specifications, clarify requirements, and deliver projects on schedule.
Communicate technical solutions and implementation considerations clearly to both technical and non-technical stakeholders.
Bachelor's degree in Computer Science, Computer Engineering, or a related field.
Minimum 5 years of Java backend development experience, with a proven track record of independently delivering projects across the full development lifecycle.
Proficiency in:
Core Java, Spring Framework, Spring Boot, and MyBatis.
Relational databases such as MySQL and PostgreSQL, including schema design, indexing, and SQL performance optimization.
Redis caching strategies and message queues such as Kafka, RabbitMQ, or ActiveMQ.
Microservices architecture, RESTful API design, API security, and distributed systems.
Hands‑on experience developing asynchronous processing and high‑concurrency solutions.
Broad technical knowledge of database internals, networking, application security, and system performance tuning.
Strong coding practices, with an emphasis on clean architecture, readability, and maintainability.
Strong communication and problem‑solving skills, with the ability to explain technical solutions clearly to technical and non‑technical stakeholders.
Proficiency in both English andMandarinas you will need to work closely with Chinese vendors.
The role is based fully onsite, requiring your presence in the office.
dtcpay is a regulated payment service provider that offers reliable solutions for merchants to grow revenues with increased acceptance rates across fiat and cryptocurrency. Our client's customers benefit from frictionless payment experiences, whether they are using our award‑winning POS+ terminal in store or using our online checkout solution.
Founded in 2019 in Singapore, dtcpay is a licensed Major Payment Institution (MPI) under the Monetary Authority of Singapore (MAS) and offers Digital Payment Token (DPT) services. We have expanded our global footprint with subsidiaries in the Americas, Hong Kong and the Middle East.
dtcpay is a regulated payment service provider that offers reliable solutions for merchants to grow revenues with increased acceptance rates across fiat and cryptocurrency. Our client's customers benefit from frictionless payment experiences, whether they are using our award‑winning POS+ terminal in store or using our online checkout solution.
Founded in 2019 in Singapore, dtcpay is a licensed Major Payment Institution (MPI) under the Monetary Authority of Singapore (MAS) and offers Digital Payment Token (DPT) services. We have expanded our global footprint with subsidiaries in the Americas, Hong Kong and the Middle East.
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