Senior Java Developer - Part-Time

Required Backend Technical Skills

• Strong proficiency in Java (Java 21) with deep understanding of core concepts, coupled with expert-level Spring Boot framework knowledge (MVC, Data, Security, Cloud).
• Strong understanding of modulith/microservices patterns and best practices, alongside experience with relational databases (e.g., MariaDB, PostgreSQL) and SQL optimization.
• Strong knowledge of RESTful API design principles and experience with message queues (Kafka, IBM MQ, etc.).
• Proven expertise in unit testing and integration testing (JUnit, Mockito, Karate), and a strong understanding of design patterns and SOLID principles.

Please see above

Overview

We seek a highly skilled Full Stack Software Engineer proficient in Java Spring Boot backend technologies. You will shape the future technical direction of user

and clients.

Key Responsibilities

• You will design, develop, and maintain full stack applications using Java Spring Boot and React for our internal users and clients in Wealth Management.
• You will build and optimize RESTful APIs and microservices.
• You will implement and maintain Micro Frontend (MFE) architectures.
• You will drive best practices across the entire technology stack.
• You will collaborate with business analysts, project managers, business stakeholders, and other tech teams to integrate and deliver high-quality products.
• You will troubleshoot complex production issues spanning frontend and backend.
• You will drive technical innovation and continuous improvement initiatives.
• You will participate in system design discussions and contribute to the technical roadmap.

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“This is in partnership with the Employment and Employability Institute Pte Ltd (“e2i”).

e2i is the empowering network for workers and employers seeking employment and employability solutions. e2i serves as abridge between workers and employers, connecting with workers to offer jobsecurity 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 andskills upgrading initiatives. By applying for this role, you consentto Quesscorp Singapore’s PDPA and e2i’s PDPA.”