Total 51 java developer job vacancies in D12 Toa Payoh, Balestier, Serangoon

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

Job Summary:

We are seeking a highly skilled Java Full Stack Developer to lead the development of microservices-based solutions in the Wealth management domain. You'll work with cutting-edge technologies like Java 11, Spring Boot, Spring Cloud, Kafka, Docker, Kubernetes, and Spring Cloud Config to build scalable, resilient, and secure applications.

Experience Required

• 4–6 years hands-on experience in Java, Spring Boot, Microservices, Angular (UI)
• Databases: MySQL, NoSQL, MariaDB
• Knowledge of Test-Driven Development (TDD)
• CI/CD pipelines
• Good understanding of software engineering best practices
• Experience in Wealth management, CASA, Fixed Deposits, Cards, or Payment's domains preferred. Strong problem-solving skills, attention to detail, and ability to work in a fast-paced environment

Company Overview

Established in 1984, Prime Supermarket is a pioneer local supermarket chain in Singapore. It grew from 5 mini-marts to 20 outlets island wide, becoming the largest family-owned supermarket chain with a full-format presence since 1991.

Job Summary

We are looking for a Junior Full-Stack Developer who is comfortable working across both front-end and back-end development. In this role, you will be responsible for building and maintaining web applications, designing scalable system architecture, ensuring responsive user interfaces, and supporting the development of end-to-end platforms including databases, servers, and APIs. You will work closely with the Technical Lead or Head of RND, stakeholders, and other developers to deliver reliable, secure, and high-performing digital solutions.

Responsibilities

• Develop, maintain, and enhance web applications across front-end and back-end layers to deliver seamless user experiences
• Build responsive, user-friendly interfaces and optimize application performance across multiple devices
• Collaborate with cross-functional teams including Scrum Master and developers to implement new features and improve user experience
• Design, develop, and maintain RESTful APIs for integration with internal and external platforms and services
• Optimize applications for performance, scalability, reliability, and security to meet business needs
• Design and manage database schemas ensuring data integrity, efficiency, and security in relational and NoSQL databases
• Conduct manual and automated testing and debugging to ensure system stability and quality
• Write clean, maintainable, scalable, and well-documented code following best development practices
• Participate in code reviews, troubleshooting, and technical discussions to improve code quality and resolve issues
• Stay current with emerging technologies, tools, and development practices to continuously enhance the software development lifecycle

Required competencies and certifications

• Diploma in Computer Science, Software Engineering, Information Technology, or related field
• 1–2 years of professional experience in full stack development
• Proficient in front-end technologies including HTML, CSS, JavaScript, and frameworks/libraries such as Vue.js or Bootstrap
• Experienced in back-end development using PHP, Node.js, or similar server-side frameworks
• Skilled in mobile application development, preferably with Flutter
• Familiar with Code Magic or similar tools for mobile CI/CD deployment
• Experienced in database design and management with relational databases (Oracle, PostgreSQL, MySQL) and/or NoSQL technologies (Elasticsearch)
• Skilled in designing and consuming RESTful APIs
• Proficient with version control systems such as Git, GitHub, or GitLab
• Familiar with DevOps practices including CI/CD pipelines, Docker/Kubernetes, and cloud platforms such as AWS, Azure, or Google Cloud
• Comfortable working in UNIX/Linux and Windows environments
• Strong problem-solving and debugging skills to troubleshoot efficiently
• Effective communication and teamwork skills to explain technical concepts clearly

Preferred competencies and qualifications

• Experience in mobile development using Flutter or React Native
• Exposure to cloud platforms and/or AWS certifications
• Proficiency in Python or TypeScript

Responsibilities:

• Collaborate with product managers, software architects, and other stakeholders to understand requirements and translate them into technical solutions.
• Design, develop, and maintain high-quality software applications, either on the frontend or backend, using Java and the Spring framework.
• Write clean, efficient, and secure code, following best practices and coding standards.
• Participate in code reviews to ensure code quality, identify potential issues, and provide constructive feedback.
• Conduct unit testing and debugging to ensure proper functionality and identify and resolve defects.
• Collaborate with frontend or backend development teams, depending on your expertise, to integrate components and ensure seamless application flow.
• Design and implement scalable and secure backend solutions using Java programming language.
• Work closely with the QA team to support testing efforts, troubleshoot issues, and resolve defects in a timely manner.
• Collaborate with DevOps teams to implement CI/CD pipelines and automate deployment processes.
• Collaborate with cross-functional teams, including product management, UX/UI designers, and operations teams, to ensure successful project implementation.
• Contribute to the continuous improvement of development processes and the adoption of best practices and technologies.
• Provide support and assistance to other developers, promoting knowledge sharing and collaboration.
• Implement CI/CD pipelines and automate deployment processes.
• Stay up-to-date with industry trends, emerging technologies, and security best practices, particularly related to payment systems and secure coding.

Qualifications:

• Bachelor's degree in Computer Science, Software Engineering, Information Technology or a related field.
• Proven experience (3+ years) as a Software Developer, with expertise in either frontend or backend development. Full-stack proficiency is a plus.
• Strong proficiency in Java, Javascript and experience with the related framework (e.g., Spring).
• Familiarity with securities concepts and secure coding practices, ensuring the development of robust and secure software applications.
• Experience in developing and integrating payment systems is highly desirable.
• Familiarity with databases and ORM technologies (e.g., Hibernate) for data modeling and persistence.
• Understanding of version control systems, such as Git, and familiarity with Agile methodologies.
• Knowledge of frontend build tools (e.g., Git, and familiarity with Agile methodologies.
• Grunt, Gulp and package managers (e.g., npm, Yarn) is a plus.
• Strong problem-solving and analytical skills, with the ability to analyze requirements and implement effective technical solutions.
• Excellent teamwork and communication skills, with the ability to collaborate effectively with cross-functional teams.
• Strong attention to detail and commitment to writing clean, maintainable, and efficient code.
• Familiarity with cloud platforms is a plus.
• Experience with containerization technologies (e.g., Docker) is desirable.
• Relevant certifications in Java or related fields are advantageous.

Responsibilities:

• Collaborate with product managers, software architects, and other stakeholders to understand requirements and translate them into technical solutions.
• Design, develop, and maintain high-quality software applications, either on the frontend or backend, using Java and the Spring framework.
• Write clean, efficient, and secure code, following best practices and coding standards.
• Participate in code reviews to ensure code quality, identify potential issues, and provide constructive feedback.
• Conduct unit testing and debugging to ensure proper functionality and identify and resolve defects.
• Collaborate with frontend or backend development teams, depending on your expertise, to integrate components and ensure seamless application flow.
• Design and implement scalable and secure backend solutions using Java programming language.
• Work closely with the QA team to support testing efforts, troubleshoot issues, and resolve defects in a timely manner.
• Collaborate with DevOps teams to implement CI/CD pipelines and automate deployment processes.
• Collaborate with cross-functional teams, including product management, UX/UI designers, and operations teams, to ensure successful project implementation.
• Contribute to the continuous improvement of development processes and the adoption of best practices and technologies.
• Provide support and assistance to other developers, promoting knowledge sharing and collaboration.
• Implement CI/CD pipelines and automate deployment processes.
• Stay up-to-date with industry trends, emerging technologies, and security best practices, particularly related to payment systems and secure coding.

Qualifications:

• Bachelor's degree in Computer Science, Software Engineering, Information Technology or a related field.
• Proven experience (3+ years) as a Software Developer, with expertise in either frontend or backend development. Full-stack proficiency is a plus.
• Strong proficiency in Java, Javascript and experience with the related framework (e.g., Spring).
• Familiarity with securities concepts and secure coding practices, ensuring the development of robust and secure software applications.
• Experience in developing and integrating payment systems is highly desirable.
• Familiarity with databases and ORM technologies (e.g., Hibernate) for data modeling and persistence.
• Understanding of version control systems, such as Git, and familiarity with Agile methodologies.
• Knowledge of frontend build tools (e.g., Git, and familiarity with Agile methodologies.
• Grunt, Gulp and package managers (e.g., npm, Yarn) is a plus.
• Strong problem-solving and analytical skills, with the ability to analyze requirements and implement effective technical solutions.
• Excellent teamwork and communication skills, with the ability to collaborate effectively with cross-functional teams.
• Strong attention to detail and commitment to writing clean, maintainable, and efficient code.
• Familiarity with cloud platforms is a plus.
• Experience with containerization technologies (e.g., Docker) is desirable.
• Relevant certifications in Java or related fields are advantageous.

* Provide day-to-day operational support and maintenance of low-code/no-code applications.

* Monitor application performance and troubleshoot issues in production environments.

* Design, develop, and maintain applications and automations using Microsoft Power Platform – including Power Apps, Power Automate (Cloud and Desktop flows), Power Virtual Agents, Power BI, and Copilot Studio.

* Build responsive canvas and model-driven apps, integrating with Microsoft 365 and third-party systems to streamline end-to-end processes.

* Configure and maintain integrations via APIs and RPA to support end-to-end business process automation, including authentication and error-handling.

* Implement secure development practices and manage user access controls in line with IT security, data privacy, and governance policies.

* Assist in gathering, documenting, and validating business and technical requirements; maintain traceability from requirements through to delivered features.

* Support delivery of small-scale digital transformation projects and enhancement requests, coordinating with stakeholders for acceptance and rollout.

* Provide timely updates to stakeholders, validate requirements iteratively, and manage acceptance criteria for releases.

* Collaborate with cross-functional teams to drive innovation and align digital initiatives with strategic business goals.

* Participate in peer code reviews, solution design walkthroughs, and team knowledge-sharing sessions to promote best practices.

* Develop and maintain user manuals, SOPs, and deliver structured user training sessions for new or updated applications.

* Promote a culture of continuous improvement by regularly reviewing digital solutions and incorporating user feedback.

* Research and evaluate emerging technologies to identify innovative tools and practices that can enhance business processes.

* Lead proof-of-concept initiatives to test and validate new digital solutions before full-scale implementation.

* Collaborate with cross-functional teams to drive innovation and align digital initiatives with strategic business goals.

* Drive digital adoption through community engagement and foster a strong citizen developer culture.

* Monitor industry trends and best practices to ensure solutions remain modern, scalable, and competitive.

Minimum Education / Qualifications

Diploma/Degree in Information Technology or equivalent

Minimum Years of Relevant Experience

2 years’ experience in developing SharePoint and low-code applications and managing workflow tools

Knowledge / Skills

* Experience in Office 365 apps, Microsoft Power Platform, SPFx, RPA, and/or workflow tools (e.g., Nintex, Workato, etc.)

* Experience in software development and programming

* Experience in UI/UX design will be an advantage

* Experience in project management

* Knowledge of application lifecycle management

* Awareness of IT security principles and data privacy standards.

* Strong planning, analytical, and problem-solving skills

* Able to work and deliver under a tight timeline

* Excellent communication and written skills

* Adaptable and dynamic as things evolve

Attributes (Functional or Leadership Competencies)

* Proactive in seeking assistance, input, and feedback

* Customer-centric

* Team player with excellent interpersonal skills and able to multi-task

* Excellent communication and written skills

Job Description & Requirements

• Determine and confirm client business expectations and needs

• Understand the client’s requirements and design the infrastructure and system architecture to support the cloud native solution

• Convert system requirements into software architecture and design documentation, and ensuring the completeness of the proposed architecture
• Work with Project Manager and customers to manage/negotiate resources, scope and schedule

• Interface and coordinate tasks with Module Leaders to ensure all modules within the system are progressing as planned, and modules can be integrated smoothly

• Lead the development team to develop and implement the proposed cloud native application

• Mentor for junior technical staff

• Risk assessment, Design of Architecture and Databases

• Setting up of environment for On-Prem and Cloud Services

• Monitoring, Troubleshooting and providing Code Review for Maintenance Project

• End to End delivery for Development Project and involved in Negotiations with customers

Prerequisites:

• Diploma / Degree in Computer Science / Computer Engineering / Information Technology related field, or IT equivalent.
• Experienced in designing and delivering complex web-based applications using Java, HTML/Javascript, ReactJS or other relevant technology stack
• Experienced in one or more of the following database servers: Oracle, DB2, MSSQL, MySQL.
• Knowledge of open-source frameworks such as Spring, Hibernate.
• MVC design, Data modeling, Deployment & Build management, Data migration. Possess working experience in Cloud Native Architecture with Microservices, Docker, Docker Swarm / Kubernetes, CI / CD, Domain Driven Design (DDD), API Design.

Overview
We are seeking a passionate and driven Developer Intern to join our team. In this role, you will focus on creating innovative internal applications using AI and open-source technologies. These applications will improve internal processes and be developed with the intent to be marketed as products. The intern will work closely with product managers to design, build, and implement solutions using the latest tools and technologies in the AI space. 

Job Descriptions:

1. Develop AI-powered Applications: Contribute to designing, developing, and deploying AI-driven apps that streamline internal workflows and offer potential as commercial products.
2. Open Source Contribution: Actively use open-source frameworks and libraries to build solutions, ensuring high-quality, scalable, and maintainable code.
3. Collaborate with Teams: Work closely with internal stakeholders, including product managers and other developers, to understand business needs and translate them into technical solutions.
4. Prototype and Experiment: Participate in rapid prototyping, testing, and iterating on new ideas based on feedback.
5. AI Model Integration: Implement and fine-tune machine learning models for real-world applications, ensuring they are optimised for performance and scalability.
6. Code Review & Best Practices: Engage in code reviews, follow best practices for coding standards, and contribute to improving development processes.
7. Documentation: Document your work, including development processes, system architecture, and APIs, clearly and concisely.

Requirements:

1. Currently pursuing or recently completed a degree in Computer Science, Engineering, or a related field.
2. Willing to join for a minimum of 6 months with commitment.
3. Basic understanding of machine learning principles and AI algorithms.
4. Experience with at least one programming language such as Python, JavaScript, or Java.
5. Familiarity with open-source software development and related tools (e.g., Git, GitHub).
6. Exposure to popular machine learning libraries such as TensorFlow, PyTorch, or Scikit-learn.
7. Strong problem-solving skills and ability to think critically about business needs.
8. Willingness to learn new technologies and tools quickly.
9. Ability to work independently and as part of a collaborative team.

Role Overview:

We are looking for a skilled Android Software Developer to design, build, and maintain Android applications using Kotlin and Java. In this role, you will work on applications deployed across mobile devices, tablets, and embedded Android systems, supporting real-world use cases such as robot interfaces, kiosks, and consumer-facing applications.

You will collaborate closely with backend, GenAI, robotics, and product teams to deliver reliable, performant, and user-friendly Android applications that operate in production environments.

Requirements:

● Bachelor’s degree in Computer Science, Software Engineering, or a related field

● 3+ years of professional Android development experience

● Strong proficiency in Kotlin and Java for Android application development

● Solid understanding of Android fundamentals: activities, services, broadcast receivers, and lifecycle management

● Experience building UIs using Jetpack components (ViewModel, LiveData, Room) and/or modern Android UI patterns

● Familiarity with RESTful APIs, WebSockets, and integrating backend services

● Experience with background processing, device permissions, and power/network constraints

● Familiarity with version control (Git), CI/CD pipelines, and Android testing practices

● Proven ability to write clean, maintainable, and well-documented code

● Strong communication skills and experience working with cross-functional teams

● Travel may be required where deemed necessary by the company for deployments, testing, client meetings, or project collaboration

Nice to Have:

● Experience deploying apps on custom Android devices, tablets, kiosks, or embedded systems

● Familiarity with hardware integrations (camera, sensors, USB/Bluetooth peripherals)

● Experience with offline-first apps and local data persistence

● Exposure to performance optimization and memory management

● Experience with remote device management, MDM, or OTA update workflows

● Applicants can include a link to their GitHub (or equivalent) repository showcasing Android projects, libraries, or relevant contribution

Why We Want You:

Your work will directly power user-facing Android applications that run on robots and smart devices, enabling intuitive interaction, stability, and seamless integration with backend and GenAI systems across museums and other real-world environments.

Unique Opportunities at Senserbot:

● Join a pioneering company at the intersection of robotics, automation, and software engineering

● Work on Android applications deployed in real-world, high-visibility environments

● Collaborate closely with AI, backend, and robotics teams

● Build software that goes beyond consumer apps into physical, deployed systems

Job Summary

Join us in building reliable, scalable Android applications that power next-generation robotic and smart-device experiences

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

Role Overview:
We are seeking a highly skilled Full Stack Software Developer to design, develop, and maintain scalable applications. The ideal candidate will have strong expertise in both frontend and backend development, with the ability to build robust APIs, manage databases, and create intuitive user interfaces. This role involves working across the full software development lifecycle, from concept and architecture through to deployment and maintenance, ensuring seamless integration between systems and delivering high-quality solutions that support business objectives.

Key Responsibilities:

●     Develop and maintain backend services, APIs, and databases for real-time monitoring and reporting.

●     Create intuitive front-end interfaces for dashboards, payment systems, and user applications.

●     Ensure system reliability, scalability, and security across applications

●     Collaborate with engineers and managers to deliver end-to-end solutions.

●     Perform troubleshooting, debugging, and performance optimization of applications.

Required Skills & Experience:

●     Strong proficiency in programming languages such as Python, JavaScript, C/C++ and other related technologies

●     Proficiency in full stack development:

○     Backend: Node.js, Python (Django/Flask/FastAPI), Spring Boot, Laravel

○     Frontend: React.js, Next.js, Angular, or Vue.js.

○     Databases: MySQL, PostgreSQL, MongoDB, MSSQL, SQLite

●     Knowledge of cloud platforms (AWS, Azure, or GCP) and containerization (Docker, Kubernetes).

●     Knowledge of Version Control Systems like Git

●     Strong problem-solving and analytical skills

●     Ability to work on cross-functional teams

●     Eager to learn new technologies and pick up new skills

Preferred Qualifications:

●     Understanding of payment integrations (POS, NFC, QR code systems, Stripe).

●     Knowledge of cybersecurity best practices

●     Knowledge of CI/CD pipelines (CircleCI, Jenkins, etc)

●     Knowledge of Error Monitoring and Logging like ELK, Grafana, Sentry, Prometheus, etc.

●     Familiarity with computer vision and AI/ML is a strong plus.

Java Production Support Engineer (Junior)

• Recent experience in working with Java J2EE applications
• Experience in application support role for min 1 years for support. Or Developers willing to learn with good knowledge of Java, Unix, SQL
• Experience in programming languages such as JAVA/J2EE.
• Experience in Unix commands , SQL queries
• Knowledge of web applications, batch jobs, JBOSS, MariaDB, SQL, Shell
• Knowledge of Job scheduling, MQ setup , C:D setup experience is a plus
• Exposure to banking industry is a plus
• Dynamic individual with thirst to learn
• Strong team player with excellent inter-personal skills
• Ownership oriented and ability to meet SLAs with no compromise on the quality of the work

A bit about us

We’re a world-leading smart mobility SaaS tech company with almost 2,300,000 subscribers across 23 countries. Our teams are collaborative, vibrant and fast-growing, and all team members are empowered with the freedom to influence our products and technology.

Are you curious, innovative and passionate?

Do you take ownership, embrace challenges, and love problem-solving?

We’re looking for a Mobile Software Developer (iOS) who will help us continue to build industry disruptive mobile applications and revolutionise the way our customers use technology.

You want to

• Design and develop scalable, feature-rich mobile applications for iOS
• Consume RESTful/JSON services to power applications
• Work with UI/UX designers to implement user-friendly solutions
• Introduce new technologies into the team based on fit and suitability to deliver a solution
• Be able to deep dive into the technical aspects needed for optimisation of mobile applications

You have

• BS Computer Science degree or equivalent industry experience
• Prior iOS development experience, including concepts such as asynchronous programming, patterns, threading, and performance tuning
• Prior experience in working with security best practices
• Proficient in Swift programming language and MVVM architecture
• Experience in/with more than one of the following will be advantageous:
• - agile development methodologies
• - distributed source control systems (git)
• - performance/analytics tools for mobile applications
• - continuous integration
• - unit testing, test driven development, static code analysis
• Good understanding of simplified user-centric design
• Ability to deep dive into the technical details, but never be out of touch with business requirements
• Creative thinking backed by strong analytical and problem-solving skills.
• Strong teamwork, co-ordination, and planning, self-driven, and ability to work at pace in a dynamic organization
• Excellent time management
• Work well under pressure and to tight deadlines

Key Responsibilities

• Prepare and maintain tools, equipment, and workstations
• Ensure cleanliness and hygiene of the salon at all times
• Attend to customers in a polite and professional manner
• Support overall salon operations and teamwork
• Learn and develop technical skills under guidance of senior stylists

Requirements

• Positive attitude and willingness to learn
• Good teamwork and communication skills
• Able to work in a fast-paced environment
• No experience required (training provided) / Experience is an advantage

Role Overview
We are seeking experienced Java Full Stack Developers to design, build, and deliver scalable enterprise applications in a fast-paced environment. This role involves working across backend microservices and front-end interfaces, contributing to high-quality, secure, and maintainable systems.

Key Responsibilities

• Design, develop, test, and deploy scalable enterprise applications using modern full stack technologies
• Build and maintain backend services using Java, Spring Boot, and microservices architecture
• Develop responsive and user-friendly front-end components using Angular
• Work with relational and NoSQL databases such as MySQL and MariaDB
• Participate in Agile development processes including sprint planning, stand-ups, and retrospectives
• Perform code reviews and ensure adherence to coding standards and best practices
• Implement and support CI/CD pipelines for automated build and deployment
• Ensure application performance, security, and scalability requirements are met
• Provide support during system integration testing and user acceptance testing phases
• Deliver technical documentation and maintain proper unit test coverage

Required Skills

• 4 to 6 years of hands-on experience in Java, Spring Boot, and microservices development
• Strong experience in front-end development using Angular
• Experience working with databases such as MySQL, MariaDB, or NoSQL
• Understanding of Test Driven Development and modern software engineering practices
• Experience with CI/CD tools and automated deployment pipelines
• Strong problem-solving skills and ability to write clean, maintainable code
• Ability to work effectively in Agile and collaborative team environments

Preferred Skills

• Experience working on enterprise or large-scale application development projects
• Exposure to banking or financial services domain
• Familiarity with cloud-based development environments
• Experience in performance optimization and application security best practices

Application Note
Interested applicants may send their CV directly to shyam@aryan-solutions.com for consideration.