Total 6 java developer job vacancies in D12 Toa Payoh, Balestier, Serangoon

What You Will Do

• Write Code: Build and update backend systems using Java and Spring Boot.

• Fix Problems: Find and fix bugs to keep services running smoothly.

• Teamwork: Work with other developers and designers in an Agile team.

• Keep Data Safe: Follow security rules to make sure citizen information is protected.

• Connect Systems: Create APIs to help different government apps talk to each other.

Skills Needed

• Java: Good experience with Java (Version 11 or higher).

• Spring Boot: Ability to build web applications using the Spring framework.

• Databases: Experience with SQL (like MySQL or PostgreSQL).

• Basic Tools: Familiar with Git (for code saving) and Jenkins (for deployment).

• Testing: Knowing how to write simple tests for your own code.

1. Strong Salesforce experience with exposure to Sales Cloud, Service Cloud

2. Strong in creating Lightning components (Aura knowledge is a must, LWC will be additional advantage)

3. Srong in Apex, Visualforce and LWC

4. Apex Enterprise Patterns Knowledge/Experience

5. Expertise in Configuration elements including Workflows, Validation rules, Process Builder

6. Well versed in any modern IDE (like VS code) and familiar with Git/Bit Bucket

7. Good to have PSS knowledge

Job Overview:
We are seeking a highly skilled Software Developer to join our team in Singapore. The successful candidate will be responsible for researching, designing, and developing software and applications. This role requires strong analytical skills and the ability to develop innovative software solutions that meet user needs and performance requirements.
Key Responsibilities:

• Research, design, and develop computer software and applications to meet business and technical requirements.
• Analyze user needs and translate them into software solutions using computer science, engineering, and mathematical principles.
• Update, enhance, and optimize existing software to improve performance and functionality.
• Develop and direct software testing and validation procedures to ensure quality and security.
• Collaborate to integrate hardware and software systems for seamless operation.
• Define software specifications and performance requirements for new and existing applications.
• Stay updated with emerging technologies to continuously improve software development processes.

Requirements:

• A Bachelor’s degree in Computer Science, Information Technology, Programming & Systems Analysis or Science (Computer Studies)
• Minimum of three (3) years of work experience as a Software Developer.
• Proficiency in programming languages, such as , Java, Python, JavaScript or GoLang
• Experience in Agile or other software development methodologies
• Strong knowledge of software architecture, database systems, and cloud technologies.
• Ability to develop scalable and efficient software solutions.
• Strong problem-solving and analytical skills.
• Excellent communication skills in English (both written and verbal).

Why Join Us?

• Competitive salary & benefits package
• Career growth & professional development in a fast-paced tech environment.
• Collaborative and innovative work culture with exposure to the latest technologies

Job Description & Requirements

• Design, develop, test, and maintain applications using Node.js and Python
• Build and manage RESTful APIs and microservices architecture
• Work extensively in Linux/Unix environments for development and deployment
• Write efficient, reusable, and scalable code following best practices
• Collaborate with cross-functional teams (Product, QA, DevOps)
• Troubleshoot, debug, and optimize application performance
• Manage application deployments, monitoring, and log analysis on Linux servers
• Work with databases (SQL/NoSQL) to design efficient schemas
• Ensure application security, reliability, and scalability
• Bachelor’s degree in Computer Science or related field
• 4+ years of experience in backend development
• Strong expertise in:Node.js (Express.js / NestJS)Python (Django / Flask / FastAPI)
• Hands-on experience with Linux/Unix systems

Embedded Linux & IoT Application Developer

Job Summary

We are seeking a skilled Embedded Linux & IoT Application Developer to design, develop, and maintain intelligent automation and connected device solutions. The ideal candidate will have strong experience in Embedded Linux, IoT protocols, middleware development, device integration, and cloud connectivity. You will play a key role in building scalable systems that connect sensors, controllers, mobile applications, and cloud platforms for smart building and automation environments.

Key Responsibilities

• Develop and maintain Embedded Linux and IoT applications using Python and C.
• Design and implement communication solutions using MQTT, Modbus, RS485, and REST APIs.
• Integrate various hardware devices including sensors, controllers, RFID readers, Android terminals, and edge computing devices.
• Develop middleware services enabling real-time communication between embedded devices, backend servers, cloud platforms, and mobile applications.
• Build and support automation systems for smart buildings, room automation, access control, lift integration, and related IoT applications.
• Design secure and reliable device-to-cloud connectivity architectures.
• Troubleshoot, debug, and optimize embedded software and Linux-based systems to ensure high performance and reliability.
• Deploy and manage applications on Linux platforms using Docker containers and systemd services.
• Monitor system performance, identify bottlenecks, and implement optimization strategies.
• Collaborate with hardware engineers, mobile developers, cloud teams, and project stakeholders to deliver integrated solutions.
• Prepare technical documentation, deployment procedures, and maintenance guides.
• Participate in system testing, commissioning, and production deployments.

Required Qualifications

• Bachelor's degree in Computer Engineering, Electronics Engineering, Computer Science, or a related field.
• Proven experience in Embedded Linux application development.
• Strong programming skills in Python and C.
• Hands-on experience with MQTT, Modbus, RS485, and REST API integration.
• Experience integrating IoT devices, sensors, controllers, RFID systems, and Android-based terminals.
• Solid understanding of Linux operating systems, networking, and system administration.
• Experience with Docker containerization and system service management.
• Strong debugging, troubleshooting, and performance optimization skills.
• Familiarity with cloud-based IoT platforms and device management solutions.
• Knowledge of TCP/IP networking and communication protocols.

Role Overview:

We’re looking for an Oracle PL/SQL Developer with strong experience in banking payment systems, UNIX scripting, and scheduling tools.

You’ll work on maintaining, enhancing, and supporting mission-critical applications for SWIFT, MEPS+, and risk/payment platforms.

Key Responsibilities:  Develop, optimize, and maintain SQL, PL/SQL procedures, functions, packages, and triggers for Oracle databases 9i/10g/11g/12cWrite and maintain UNIX/AIX shell scripts for batch jobs, data loads, and system automation

Support and monitor batch schedules using Control-M scheduler

Troubleshoot issues in payment systems: SWIFT Alliance [AWP, SAA, SAG], SWIFT Online Operation Manager, and MEPS+

Work with risk and compliance tools like Risk Authority (RAY) Moody’s and BAE Systems DETICA

Manage code/version control using ClearCase, ClearQuest, and Aldon

Perform data analysis and debugging using SQL_Plus, SQL Developer, TOAD, and ORMSCollaborate with business, QA, and production support teams for deployments and incident resolution

Required Skills:

• Languages: SQL, PL/SQL, Unix Shell Scripting
• Databases/Tools: Oracle 9i/10g/11g/12c, ORMS, SQL_Plus, SQL Developer, TOAD, Control-M scheduler, ClearCase, ClearQuest, Aldon
• Risk/Payment Systems: Risk Authority (RAY) Moody’s, BAE Systems DETICA, MEPS+, SWIFT Alliance [AWP, SAA, SAG], SWIFT Online Operation Manager
• Operating Systems: Windows, UNIX AIXGood to Have:  Experience in banking domain, payment processing, or treasury systems
• Mandatory: Experience with SWIFT Alliance, MEPS+, and regulatory compliance systems.