Senior Java Developer (Contract) - PV

PERSOL SINGAPORE PTE. LTD.; Singapore; On-site; SGD 120,000 - 180,000; Full time

Job summary

PERSOL Singapore Pte Ltd in Singapore is seeking an experienced Java backend engineer to design and develop enterprise-grade API services, with a focus on performance, security, and observability. You will own end-to-end delivery from design through production, mentor juniors, and collaborate with architects to align with platform strategy, including Splunk-based diagnostics.

This role requires 6+ years of hands-on Java 17+/Spring Boot 3 experience in enterprise settings and strong SQL/Oracle

Qualifications

• Bachelor’s degree in Computer Science, Engineering, or related technical discipline.
• 6+ years of hands-on Java 17+ with Spring Boot 3 in enterprise environments.
• Strong SQL/PLSQL, Oracle DB, data modeling, and ORM/JDBC experience.
• Experience with MQ-based messaging, event-driven workflows, and reliability.

Responsibilities

• Lead design and development of enterprise Java backend API services aligned with architecture and platform strategy.
• Analyze and resolve multi-threading, concurrency, and JVM performance issues.
• Enforce high standards of code quality, security, performance, and test coverage.
• Design logging/observability strategies; ensure effective Splunk ingestion for monitoring and analytics.
• Conduct code reviews, mentor junior developers, and promote engineering best practices.
• Own end-to-end deliverables from design to production; identify risks and dependencies.
• Collaborate with delivery managers and architects to manage technical risks and non-functional requirements.
• Contribute to production support, root cause analysis, and continuous improvement for resilience.

Skills

Mentoring

End-to-end ownership

Performance debugging

Code reviews

Security

Observability

Education

Bachelor’s degree in Computer Science or Engineering

Tools

Java 17+

Spring Boot 3

Oracle Database

SQL/PLSQL

JDBC

Spring JPA / ORM

MQ-based messaging

Splunk / Observability

Job description

About the Client:

Local MNC client

Responsibilities:

• Lead the design and development of enterprise-grade Java backend API services ensuring alignment with architectural standards and long-term platform strategy.
• Proactively analyze and resolve complex performance and stability issues, with deep focus on multi-threading, concurrency, and JVM-level tuning.
• Drive and enforce high standards of code quality, security, performance, and test coverage, ensuring full compliance with engineering standards and quality gates.
• Design and optimize application logging and observability strategies, ensuring effective ingestion by Splunk for operational monitoring, diagnostics, and analytics.
• Perform and lead code reviews, mentor junior developers, and promote best engineering practices within the team.
• Conduct technical reviews, mentoring junior engineers, and driving engineering best practices across the team.
• Take strong ownership of end-to-end deliverables, from design through production, and proactively identify risks, dependencies, and improvement opportunities.
• Work with technical delivery manager, architect to identify and proactively manage technical risks, dependencies, and non-functional requirements.
• Contribute to production support, root cause analysis, and continuous improvement initiatives to enhance system reliability and resilience.

Requirement:

• Bachelor’s degree in Computer Science, Engineering, or a related technical discipline.
• 6+ years of hands-on experience in Java 17 or higher especially on Springboot 3 development, with demonstrated ownership of complex systems in enterprise environments.
• Strong proficiency with Oracle Database, including advanced SQL and PL/SQL, data modeling, query optimization, transaction management, and integration via ORM technologies (Spring JPA) and JDBC.
• Proven experience in integration and messaging, including MQ-based communication (e.g., IBM MQ or equivalent), designing event-driven and asynchronous transaction workflows, ensuring reliability, idempotency, and consistency across distributed systems.

We regret that only shortlisted candidates will be contacted.

EA License No. 01C4394

EA Personnel Reg. No. R1104824 (Samsudeen Mohamed Basith)

This is in partnership with Employment and Employability Institute Pte Ltd (“e2i”). e2i is the empowering network for workers and employers seeking employment and employability solutions. e2i serves as a bridge between workers and employers, connecting with workers to offer job security through job-matching, career guidance and skills upgrading services, and partnering employers to address their manpower needs through recruitment, training, and job redesign solutions. e2i is a tripartite initiative of the National Trades Union Congress set up to support nation-wide manpower and skills upgrading initiatives. By applying for this role, you consent toe2i’s PDPA.

By sending us your personal data and curriculum vitae (CV), you are deemed to consent to PERSOL Singapore Pte Ltd and its affiliates to collect, use and disclose your personal data for the purposes set out in the Privacy Policy available athttps://www.persolapac.com.sg/policies. You acknowledge that you have read, understood, and agree with the Privacy Policy