Total 59 java developer job vacancies in D12 Toa Payoh, Balestier, Serangoon

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.

Job Responsibilities:

• Works with multi-disciplinary team to understand system / application requirements.
• As part of a team, develops software solutions that meets client’s needs and perform as designed
• Capable of applying technical best practices to all projects
• Consistently improves skills in order to deliver high-quality output and gain increased responsibility
• Communicates professionally with clients and internal staff to identify needs and evaluate solutions
• Willingness to explore new technologies, learn new concepts and share ideas with others
• Maintain high level of customer satisfaction.

Job Requirements:

• Diploma or Bachelor’s Degree in Computer Science.
• Experience in programming language such as C#, ASP.NET.
• Experience in scripting HTML, CSS and JavaScript.
• Experience in API Gateway and RestAPI.
• Experience in UI/UX is an added advantage.
• Experience in MS SQL database and SQL syntax.
• Experience in relevant development software, particularly, Visual Studio, MS SQL.
• Experience applying theories related to web, database, interactive and mobile application.
• Understanding of basic designing tools such as Photoshop and Illustrator.
• Good communication skills.
• Ability to manage multiple timelines.
• Highly creative in thinking, concepts and designs.

As a Java (Full Stack) Developer, you will be responsible for the end-to-end solutioning and development of software and web applications.

Backend Development:

1.      Design, develop, and maintain microservices architecture using Java and Node.js.

2.      Implement event-driven architecture to enable seamless communication between microservices.

3.      Utilize ORM Framework for efficient database interactions and management.

4.      Containerize applications using Docker for scalability and deployment flexibility.

5.      Apply Domain-Driven Design (DDD) principles to ensure clean and modular code architecture.

6.      Implement OAuth for secure authentication and authorization.

7.      Develop and enforce security best practices to safeguard sensitive data and systems.

8.      Utilize AWS services such as S3, Lambda, API Gateway, DynamoDB, etc., for backend development.

9.      Develop RESTful APIs endpoints to facilitate communication between the frontend and backend.

10.  Reuse existing reusable microservices built in .Net Core

Frontend Development:

1.      Develop responsive and user-friendly web applications using React.js and Next.js.

2.      Write unit tests using Jest to ensure code quality and reliability.

3.      Create reusable UI components and maintain a consistent design using Storybook.

4.      Collaborate closely with UX/UI designers to implement intuitive and visually appealing interfaces.

5.      Troubleshoot and debug issues across the stack, ensuring smooth application operation.

6.      Optimize application performance and scalability for a seamless user experience.

Requirements:

• Proven experience as a Full Stack Java Developer or similar role.
• Strong proficiency in Java and related backend technologies.
• Experience building microservices architecture and implementing event-driven design patterns.
• Proficiency in ORM Framework for database management.
• Familiarity with Docker and containerization principles.
• Knowledge of Domain-Driven Design (DDD) principles and their application in backend development.
• Experience implementing OAuth for authentication and authorization.
• Understanding of security best practices and their application in backend development.
• Hands-on experience with AWS services such as S3, Lambda, API Gateway, DynamoDB, etc.
• Proficiency in frontend technologies such as React.js, Next.js, HTML, CSS, and JavaScript.
• Experience writing unit tests using Jest and maintaining a design system with Storybook.
• Strong problem-solving skills and attention to detail.

Responsibilities:

•  Develop, test, and deploy new user-facing features for our iOS and Android applications using React Native.

• Design, build, and maintain efficient, reusable, and reliable back-end services and APIs in Java (e.g., using Spring Boot).

• Implement mobile security best practices, including secure data storage, encrypted communications, code hardening, and protection against common vulnerabilities.

• Collaborate with the Product Manager, designers, and other engineers to define feature specifications and secure architecture.

• Write clean, maintainable, and well-documented code following best practices.
• Troubleshoot and debug issues across the entire stack, from the mobile UI to the back-end infrastructure, including security-related incidents.

• Participate in code reviews with a keen eye for security flaws.
• Contribute to the entire product lifecycle, from ideation and prototyping to launch and support.

Requirements:

• Experience: Minimum of 1 years + of professional experience in software development.

• Mobile Development: Proven experience building cross-platform mobile apps with React Native. A portfolio of released applications on the App Store or Google Play is a plus.
• Back-End Development: Strong proficiency in Java and Experience with relevant frameworks (e.g., Spring, Spring Boot). 

Application Security:

o    Demonstrated knowledge of mobile security principles and common vulnerabilities (e.g., OWASP Mobile Top 10).

• Develop and customize ServiceNow applications, particularly FSM and App Engine modules.
• Collaborate with stakeholders to gather and analyze requirements, ensuring alignment with business objectives.
• Design and implement workflows, business rules, and UI policies to automate processes and improve user experience.
• Integrate ServiceNow with other enterprise systems and third-party applications.
• Perform unit testing and support user acceptance testing to ensure high-quality deliverables.
• Provide technical support and troubleshooting for ServiceNow applications.
• Stay updated with the latest ServiceNow features and best practices to continuously improve the platform.

Interested candidates, please send over your resume to mail@aryan-solutions.com

• Preferably with more with 5 years relevant working experience in the implementation of ServiceNow solution. Candidates with relevant experience in ServiceNow ITSM, IRM, SPM and/or HRSD will be preferred.
• Responsible for implementing solution on ServiceNow
• Review customer’s current business processes and translate to customer pain points
• Configure solution environments to address customer requirements and business issues
• Setup CI/CD pipelines for ServiceNow Production and non-production environments
• Develop reference architecture for ServiceNow integration with WOG services and external internet services
• Conduct POC to validate customer use cases.
• Assist the project management office to assess implementation efforts based on customer use cases
• Develop and maintain necessary project artefacts e.g. SaaS business rules

Interested candidates, please send over your resume to mail@aryan-solutions.com

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

At SimplifyNext, we specialise in driving business transformation through Automation, AI, and New Gen Apps. We empower organisations by scaling automation, integrating cutting-edge AI solutions into business processes, and delivering next-generation applications. We support our clients in building internal capabilities through our Centre of Excellence, comprehensive training, enablement programmes, and Citizen Developer initiatives to ensure sustained success.

Our hands-on experience spans strategy formulation, seamless implementation, and operational excellence, providing invaluable insights across diverse environments.

We harness digital technologies including Automation (RPA), New Gen Apps Platforms, Process Mining, and AI capabilities such as Intelligent Document Processing, Text Analytics, Generative AI, and Conversational AI. We proudly partner with leading vendors such as Blue Prism, UiPath, Automation Anywhere, OutSystems, ServiceNow, Microsoft Power Platform, AWS, Druid AI, Hyperscience.

SimplifyNext is home to one of ASEAN’s most innovative automation practices and our RPA team plays a central role in our transformation programmes.

The Role – What You’ll Do

• Design and deliver enterprise-grade automation solutions using Blue Prism, ensuring scalability, performance, and maintainability.
• Lead the development of RPA processes including process design, workflow building, exception handling, SLAs, and orchestration.
• Work on end-to-end RPA delivery: from process identification, feasibility, design, build, test, deployment, to production support.
• Integrate Blue Prism solutions with various enterprise systems (CRM, ERP, internal APIs, web services, databases) and external services.
• Implement governance frameworks, version control/ALM practices, environment strategy, deployment automation and monitoring of bots.
• Collaborate in Agile squads, engage with business stakeholders, run demos, facilitate UAT, and continuously improve delivery.
• Mentor junior RPA developers, contribute to knowledge-sharing, best practices, and automation COE initiatives.
• Explore and incorporate intelligent automation elements (e.g., OCR/IDP, AI-based decisioning, conversational bots) alongside RPA to elevate automation impact.

What Makes this Role Exciting

• You’ll shape high-impact solutions – delivering automation at scale across public and private sectors that significantly reduce manual effort and transform operation models.
• You’ll push the boundaries of RPA by working beyond “bots that simply mimic clicks” into integrated intelligent automation, analytics, and orchestration across platforms.
• You’ll design with experience in mind – partnering with UX/design teams, business stakeholders and technical architects to ensure the automation is robust and user-centric.
• You’ll work in a fast-growth, high-visibility practice – you’ll gain exposure to senior leadership, client executive sponsors and opportunities to drive thought leadership in our automation community.
• You’ll accelerate your career – structured mentorship, opportunities to progress into Automation Architect / Practice Lead roles, cross-train into AI and other digital domains.

What We’re Looking For

• Minimum 4 years of professional experience, with at least 2-3 years focused on Blue Prism RPA development (or similar RPA platform) in enterprise environments.
• Strong hands-on experience with Blue Prism (process studio, control room, RPA architecture) and familiarity with building robust, scalable automation workflows.
• Integration experience with system APIs, web services, databases, ERP/CRM systems and handling exception/error management, logging, monitoring.
• Understanding of automation best practices, governance, ALM/DevOps for RPA, and environment strategy (dev/test/prod).
• Experience or exposure in using intelligent automation capabilities (e.g., OCR/IDP, document processing modules, decision intelligence) is a plus.
• Agile delivery experience – working in cross-functional squads, iterative delivery, engaging business stakeholders.
• Strong problem-solving skills, ability to translate business processes into automated workflows, excellent communication skills.
• Preferred: Blue Prism certification(s), knowledge of scripting or .NET (for advanced integrations) and familiarity with RPA COE frameworks.

Why Join Us

• Competitive salary + performance bonus
• Certification sponsorship (e.g., Blue Prism Developer/Professional)
• Work on automation and AI-driven RPA projects—not just repetitive bots
• Learn from senior architects and consulting leaders in our automation & AI practice
• Structured career path toward Lead Developer / Automation Architect / Practice Lead
• Cross-training in AI, automation, and next-gen digital platforms