Senior Java Developer

JonDavidson Pte Ltd; Singapore; On-site; SGD 180,000 - 240,000; Full time

Job summary

JonDavidson Pte Ltd in Singapore seeks an experienced Java expert to build secure, high-volume microservices for core banking applications. You will design and implement scalable services using Java, Spring Boot, and REST, focusing on security and performance.

You will collaborate with architects, QA, and ops to ensure robust CI/CD pipelines (Jenkins/Git) and reliable monitoring (ELK). Prior banking domain experience and PCI-DSS awareness are essential.

Qualifications

• 7+ years Java development experience, with at least 3+ years in banking environments.
• Proficient in Java 8+ and Spring Boot/Security, JPA and REST APIs.
• Experience with Oracle DB, Kafka/JMS, and Docker in production systems.
• Knowledge of PCI-DSS requirements and secure coding practices.

Responsibilities

• Code & integrate transaction systems (SWIFT/ISO 20022).
• Secure APIs (OAuth2/JWT), optimize latency.
• CI/CD (Jenkins/Git), monitor (ELK).
• Agile delivery with architects & QA.

Skills

Java

Spring Boot

REST APIs

OAuth2/JWT

Kafka/JMS

Oracle DB

Docker

PCI-DSS

Secure coding

Tools

Jenkins

Git

ELK

Kubernetes

Job description

Role: Build secure, high-volume Java/Spring Boot microservices for core banking (payments, Banking systems, risk, compliance).

Key Duties

• Code & integrate transaction systems (SWIFT/ISO 20022)
• Secure APIs (OAuth2/JWT), optimize latency
• CI/CD (Jenkins/Git), monitor (ELK)
• Agile delivery with architects & QA

Must-Have

• 7+ yrs Java; 3+ in banking
• Java 8+, Spring Boot/Security, JPA, REST
• Oracle, Kafka/JMS, Docker
• PCI-DSS, secure coding

Nice-to-Have

• K8s, TDD, real-time payments