Total 35 java developer job vacancies

We are seeking an experienced Full Stack Developer to design, build, and scale secure, high-performance web applications.

• Opportunity to be a part of an innovative team to deliver large scale projects.
• Attractive remuneration package. Salary with commensurate with experience.  
• Hybrid work arrangement.

Responsibilities:

• Develop and maintain responsive, secure, and scalable web applications.
• Build modern frontends (React.js, Next.js, Vue.js) and robust backends (Node.js, Nest.js).
• Implement CI/CD pipelines, cloud deployments (AWS, Docker, Kubernetes), and infrastructure automation (Terraform).
• Ensure application security, compliance, and performance.
• Collaborate with cross-functional teams and troubleshoot technical issues.

Requirements:

• Degree in Computer Science, IT, or related field.
• Min 3 years’ experience in Software Engineering. Strong skills in JavaScript/TypeScript, and API design.
• Hands-on experience with AWS, Docker, Kubernetes, Terraform/CloudFormation, and CI/CD tools.
• Experience in low-code platform integrations like OutSystems is highly advantageous.

Interested candidates may click on apply or apply via email to spml@scientecpersonnel.com (indicating Job ID J67575 for faster processing). 

By submitting your resume, you consent to the collection, use, and disclosure of your personal information per ScienTec’s Privacy Policy (scientecconsulting.com/privacy-policy).

This authorizes us to:

• Contact you about potential opportunities.
• Delete personal data as it is not required at this application stage

All applications will be processed with strict confidence. Only shortlisted candidates will be contacted.

Lee Wen Ying (Mattias) - R23112909

ScienTec Consulting Pte Ltd - 11C5781

We are hiring a Backend Developer to drive backend system modernisation, focusing on database optimisation and API development. This role will be critical in enhancing system performance and enabling integration with modern platforms.

• Working Hours: Mon-Fri
• Working Location: Central
• Job Type: Contract
• Salary Package: Up to $8000 (basic) + AWS

Key Responsibilities

• Design, develop, and maintain backend services and APIs
• Analyse and optimise SQL queries and Sybase stored procedures
• Develop and integrate RESTful APIs for system interoperability
• Collaborate with frontend and PowerBuilder developers for system integration
• Ensure high performance, scalability, and security of backend systems

Requirements

• Minimum 3 years of backend development experience
• Strong proficiency in SQL and database optimisation
• Experience with API development and integration
• Proficiency in Java or C#
• Hands-on experience with RESTful API design and implementation

By submitting your resume, you consent to the collection, use, and disclosure of your personal information per ScienTec’s Privacy Policy (scientecconsulting.com/privacy-policy).

This authorizes us to:

Contact you about potential opportunities.

Delete personal data as it is not required at this application stage.

All applications will be processed with strict confidence. Only shortlisted candidates will be contacted.

Elane Yap Theng Yu- R1989397

ScienTec Consulting Pte Ltd - 11C5781

We are looking for a Full Stack Engineer to develop and maintain secure, scalable web applications for a major government digital transformation project with nationwide impact.

Why You’ll Love Working Here:

• Government Projects
• Hybrid Work Arrangements
• Up to S$10,000 + AWS

Key Responsibilities:

• Design, develop, and maintain secure, scalable web-based applications
• Build responsive front-end interfaces and robust backend services
• Develop and integrate RESTful APIs with internal and external systems
• Participate in system design discussions, code reviews, and technical documentation and ensure application performance, security compliance, and reliability
• Maintain technical documentation including system design and review, user guides, test plans, and system architecture.

To Succeed:

• Min. 4 years of experience in Full Stack Software Development, with strong expertise in React and Node.js
• Experience with Serverless tools, containers or AWS (Amazon Web Services)
• Strong proficiency in JavaScript, with preference for TypeScript experience
• Strong foundation in software architecture and design patterns

By submitting your resume, you consent to the collection, use, and disclosure of your personal information per ScienTec’s Privacy Policy (scientecconsulting.com/privacy-policy).

This authorizes us to:

• Contact you about potential opportunities.
• Delete personal data as it is not required at this application stage.

All applications will be processed with strict confidence. Only shortlisted candidates will be contacted.

Elias Yeo HongJie (Outsourcing Team)

ScienTec Consulting Pte Ltd - 11C5781

Working Hours: Monday – Thursday (8.30am – 6pm), Friday (8.30am – 5.30pm) (Hybrid working arrangement)
Working Location: Central
Salary Package: Up to $9.5k + AWS
Employment Type: Contract (renewable)

The role requires expertise in frontend and backend development, cloud technologies, DevOps automation, and application security.

Responsibilities:

• Take full ownership of end-to-end application development, integrating frontend, backend, and cloud infrastructure.
• Design, develop, and maintain responsive, accessible, and performant web applications.
• Implement modern frontend architectures, ensuring reusability, scalability, and security.
• Develop high-performance backend services and APIs, ensuring reliability, security, and observability.
• Work with Quality Assurance (QA) engineers to ensure automated test coverage and proactively fix bugs and defects.
• Optimize full-stack CI/CD deployment strategies, ensuring seamless and automated releases.
• Work with DevOps teams to automate infrastructure provisioning, monitoring, and cloud deployments.
• Ensure full-stack security, including authentication, authorization, API security, and frontend security best practices.
• Continuously evaluate and adopt emerging technologies to improve application performance and developer productivity.

Requirements:

• Bachelor's degree in computer science or related.
• Minimum 5 years of full stack engineering experience.
• Tech Stack: ReactJS, NodeJS, AWS, CI/CD

By submitting your resume, you consent to the collection, use, and disclosure of your personal information per ScienTec’s Privacy Policy (scientecconsulting.com/privacy-policy).

This authorizes us to:

• Contact you about potential opportunities.
• Delete personal data as it is not required at this application stage.
• All applications will be processed with strict confidence. Only shortlisted candidates will be contacted.

Wong Siew Ting (Maeve) - R25127375

ScienTec Consulting Pte Ltd - 11C5781

About the Role
We are seeking a PowerBuilder Developer to support business-as-usual (BAU) operations and production systems. You will play a key role in maintaining and enhancing existing applications, ensuring system stability and performance.

• Working Hours: Mon-Fri
• Working Location: Central
• Job Type: Contract
• Salary Package: Up to $8000 (basic) + AWS

Key Responsibilities

• Provide production support, including troubleshooting and incident resolution
• Enhance and maintain PowerBuilder applications and UI components
• Manage and implement change requests in line with business needs
• Analyse issues and deliver timely fixes to minimise downtime
• Create and maintain technical documentation and process flows
• Collaborate with cross-functional teams to ensure smooth system operations

Requirements

• Minimum 3 years of experience in PowerBuilder development
• Strong expertise in PowerBuilder UI design and enhancement
• Hands-on experience in production support and troubleshooting
• Familiarity with change request and incident management processes
• Good documentation and communication skills

By submitting your resume, you consent to the collection, use, and disclosure of your personal information per ScienTec’s Privacy Policy (scientecconsulting.com/privacy-policy).

This authorizes us to:

Contact you about potential opportunities.

Delete personal data as it is not required at this application stage.

All applications will be processed with strict confidence. Only shortlisted candidates will be contacted.

Elane Yap Theng Yu- R1989397

ScienTec Consulting Pte Ltd - 11C5781

We are seeking a Full Stack Engineer to support a large-scale government digital transformation initiative.

Why You’ll Love Working Here:

• Government Project
• Hybrid Work Arrangements
• Up to S$10,500 + AWS

Key Responsibilities:

• Take full ownership of end-to-end system development, integrating frontend, backend, DevOps and cloud infrastructure as required to achieve organisational objectives
• Develop infrastructure and applications in accordance with modern cloud technology, ensuring reusability, scalability and security
• Develop data systems and supporting infrastructure, including database administration, ETL pipelining, and analytics tools for use cases across ecosystem
• Work cross-functionally with Product Managers, Data Scientists and Users with a strong sense of ownership to ensure that products developed meet user needs

To Succeed:

• Experience in Full Stack Software Development, with strong expertise in Python
• Bachelor's Degree in Computer Science, Information Technology, Engineering, or a related discipline or equivalent experience
• Experience with Serverless tools, containers or AWS (Amazon Web Services)
• Strong foundation in software architecture and design patterns

By submitting your resume, you consent to the collection, use, and disclosure of your personal information per ScienTec’s Privacy Policy (scientecconsulting.com/privacy-policy).

This authorizes us to:

• Contact you about potential opportunities.
• Delete personal data as it is not required at this application stage.

All applications will be processed with strict confidence. Only shortlisted candidates will be contacted.

Elias Yeo HongJie (Outsourcing Team)

ScienTec Consulting Pte Ltd - 11C5781

We are looking for a PowerBuilder Developer with strong database expertise to support a Sybase migration initiative. You will be responsible for adapting existing applications and ensuring seamless database transition.

• Working Hours: Mon-Fri
• Working Location: Central
• Job Type: Contract
• Salary Package: Up to $8000 (basic) + AWS

Key Responsibilities

• Support Sybase database migration activities
• Modify PowerBuilder code to align with new database structures
• Enhance and optimise Sybase stored procedures
• Work closely with backend and database teams to ensure data integrity
• Troubleshoot migration-related issues and ensure system stability

Requirements

• Minimum 3 years of experience in PowerBuilder development
• Strong experience in database migration projects
• Solid knowledge of Sybase stored procedures and database architecture
• Experience in backend integration and system enhancements
• Strong analytical and problem-solving skills

By submitting your resume, you consent to the collection, use, and disclosure of your personal information per ScienTec’s Privacy Policy (scientecconsulting.com/privacy-policy).

This authorizes us to:

Contact you about potential opportunities.

Delete personal data as it is not required at this application stage.

All applications will be processed with strict confidence. Only shortlisted candidates will be contacted.

Elane Yap Theng Yu- R1989397

ScienTec Consulting Pte Ltd - 11C5781

Key Responsibilities

• Design, develop, and maintain scalable backend systems to support content analysis, cataloguing, search, and retrieval workflows.
• Develop and optimise APIs to integrate AI models and processing pipelines (e.g., computer vision and audio analysis) into the platform architecture.
• Design and manage relational and NoSQL databases, including data modelling, query optimisation, and schema management.
• Build responsive and high-performance user interfaces using modern frameworks such as React, Vue, or Angular.
• Apply full-stack engineering best practices to ensure system performance, scalability, maintainability, and security.
• Collaborate with cross-functional teams to gather requirements, design end-to-end solutions, implement features, and maintain technical documentation.

Requirements

• Minimum 4 years of professional experience in full-stack software development.
• Proficiency in Python and JavaScript, with experience in backend frameworks (e.g., Node.js, Python frameworks) and frontend frameworks (e.g., React, Vue, Angular).
• Strong experience designing and managing relational and/or NoSQL databases.
• Experience working with cloud platforms (AWS, Azure, or GCP) and containerization technologies such as Docker and Kubernetes.
• Knowledge of secure API design, authentication mechanisms, and handling sensitive data in web applications.
• Familiarity with AI or machine learning model integration into production systems is highly advantageous.
• Understanding of multimodal media processing (e.g., audio, video, image analysis) is a plus.
• Ability to quickly learn new technologies and adapt in fast-moving development environments.
• Experience leveraging AI coding tools or agentic development tools for rapid prototyping is advantageous.

By submitting your resume, you consent to the collection, use, and disclosure of your personal information per ScienTec’s Privacy Policy (scientecconsulting.com/privacy-policy).

This authorizes us to:

• Contact you about potential opportunities.

• Delete personal data as it is not required at this application stage.

All applications will be processed with strict confidence. Only shortlisted candidates will be contacted.

Elaine Wong (Zoe) l Outsourcing Team

ScienTec Consulting Pte Ltd - 11C5781

About the Role

We are looking for an AI Full-Stack Developer to build and maintain core AI platform services. The role focuses on developing scalable APIs and integrating AI capabilities (video, image, audio, and text) into real-world applications.

• Working Hours: Mon-Fri, Office hours
• Employment Type: 1 year renewable contract 
• Benefits: Annual Leave, Birthday Leave, Medical Benefits, AWS

Key Responsibilities:

• Design and maintain scalable backend systems and APIs using Python (e.g. FastAPI/Node.js)
• Integrate AI models and data pipelines (multimodal: image, video, audio, text) into applications
• Develop responsive frontend applications using JavaScript/TypeScript (React, Vue, or Angular)
• Work with SQL/NoSQL databases for data modelling, optimization, and data management
• Deploy and manage applications on cloud platforms (AWS/Azure/GCP) using Docker/Kubernetes
• Ensure system performance, scalability, security, and maintainability
• Collaborate with stakeholders on system design, implementation, testing, and troubleshooting

Requirement:

• Degree in Computer Science, Information Technology, or related field
• At least 4 years of full-stack development experience using Python and JavaScript (frontend + backend frameworks)
• Experience with databases (SQL/NoSQL), API development, and integrating systems
• Familiar with cloud platforms (AWS/Azure/GCP) and containerization (Docker/Kubernetes)
• Understanding of web application security and handling sensitive data
• Able to learn new technologies and work independently

Good to Have

• Experience in AI/ML or integrating AI models into applications
• Exposure to multimodal AI (image, video, audio, text)
• Experience using AI coding tools

By submitting your resume, you consent to the collection, use, and disclosure of your personal information per ScienTec’s Privacy Policy(scientecconsulting.com/privacy-policy).

This authorizes us to:
• Contact you about potential opportunities.
• Delete personal data as it is not required at this application stage.

All applications will be processed with strict confidence. Only shortlisted candidates will be contacted.

Ting Soo Leng (Tiffany) l Outsourcing Team
ScienTec Consulting Pte Ltd - 11C5781

Full Stack Developer | Outsystems | JavaScript

• Working Hours: Mon-Fri (Hybrid)
• Location: Central
• Remuneration: Up to $10,000 + AWS

Role Overview

Design, develop, and maintain scalable full-stack applications across front-end, back-end, and cloud environments, including both custom-built and OutSystems-based solutions, ensuring performance, reliability, and seamless integration.

Key Responsibilities

• Design and develop end-to-end full stack applications using modern frameworks
• Build reusable components, APIs, and integration services
• Develop and maintain applications using OutSystems where applicable
• Implement data models, business logic, and automated testing
• Develop microservices and serverless functions
• Collaborate with stakeholders to translate requirements into technical solutions
• Participate in Agile ceremonies and technical discussions
• Perform debugging, testing, and root cause analysis
• Support CI/CD pipelines and deployment processes
• Monitor, maintain, and optimise application performance

Requirements

• Minimum 3 years of full stack development experience
• Proficiency in JavaScript frameworks (React, Angular, or Vue) and one backend language (Java, Python, C#, or Node.js)
• Experience with cloud platforms (preferably AWS) and RESTful API development
• Strong understanding of SQL, system integration, and DevOps practices
• Hands-on experience with OutSystems is preferred

By submitting your resume, you consent to the collection, use, and disclosure of your personal information per ScienTec’s Privacy Policy (scientecconsulting.com/privacy-policy).

This authorizes us to:

Contact you about potential opportunities.

Delete personal data as it is not required at this application stage.

All applications will be processed with strict confidence. Only shortlisted candidates will be contacted.

Aloysius Tan Sheng Rong - R22110441
ScienTec Consulting Pte Ltd - 11C5781

We are seeking a Salesforce Developer to help enhance and transform a growing Salesforce platform powering government initiative.

Why Join Us:

• Salary up to $10,000 (Basic) + AWS
• Hybrid Work Arrangements
• Up to 21 days of AL

Responsibilities:

• Partner with the product team to deliver enhancements across core Salesforce modules, driving continuous platform improvements
• Design and build scalable solutions using custom applications, Lightning Web Components (LWC), Apex, and Flows to meet evolving business needs.
• Contribute to integration workstreams, working with tools such as Salesforce Connect, Salesforce IDR, and Odaseva to ensure seamless data flow and reliability
• Collaborate closely with Architects, Administrators, Business Analysts, and Engineering teams to deliver secure, compliant, and scalable solutions aligned with organizational standards
• Participate in agile ceremonies including sprint planning, code reviews, and deployments, ensuring high-quality releases through established DevOps practices
• Provide ongoing support and troubleshooting for deployed features, maintaining platform stability, performance, and a strong user experience

Requirements:

• Min. Degree in Computer Science, IT, or a related discipline
• Min. 2 year of Salesforce development experience
• Proficiency in Salesforce Apex, Visualforce, familiarity with Salesforce APIs and integration practices.
• Salesforce certification preferred

If you’re passionate about contributing to impactful government projects while advancing your career, we welcome you to explore this opportunity with us

By submitting your resume, you consent to the collection, use, and disclosure of your personal information per ScienTec’s Privacy Policy (scientecconsulting.com/privacy-policy).

This authorizes us to:

• Contact you about potential opportunities.
• Delete personal data as it is not required at this application stage.

All applications will be processed with strict confidence. Only shortlisted candidates will be contacted.

Elias Yeo HongJie (Outsourcing Team)
ScienTec Consulting Pte Ltd - 11C5781

We are seeking an experienced Full Stack Developer to design, build, and scale secure, high-performance web applications.

• Opportunity to be a part of an innovative team to deliver large scale projects.
• Attractive remuneration package. Salary with commensurate with experience.  
• Hybrid work arrangement.

Responsibilities:

• Develop and maintain responsive, secure, and scalable web applications.
• Build modern frontends (React.js, Next.js, Vue.js) and robust backends (Node.js, Springboot).
• Implement CI/CD pipelines, cloud deployments (AWS, Docker, Kubernetes), and infrastructure automation (Terraform).
• Ensure application security, compliance, and performance.
• Collaborate with cross-functional teams and troubleshoot technical issues.

Requirements:

• Degree in Computer Science, IT, or related field.
• Min 3 years’ experience in Software Engineering.
• Strong skills in JavaScript/TypeScript/Java, and API design.
• Hands-on experience with AWS, Docker, Kubernetes, Terraform/CloudFormation, and CI/CD tools.
• Experience in low-code platforms like OutSystems is highly advantageous.
• Strong problem-solving, stakeholder engagement, and communication skills.

Interested candidates may click on apply or apply via email to spml@scientecpersonnel.com (indicating Job ID J66033 for faster processing). 

By submitting your resume, you consent to the collection, use, and disclosure of your personal information per ScienTec’s Privacy Policy (scientecconsulting.com/privacy-policy).

This authorizes us to:

• Contact you about potential opportunities.
• Delete personal data as it is not required at this application stage

All applications will be processed with strict confidence. Only shortlisted candidates will be contacted.

Lee Wen Ying (Mattias) - R23112909

ScienTec Consulting Pte Ltd - 11C5781

Working hours: Mon-Fri, Office hours
Location: Central
Job Type: Contract (Renewable basis)

Key Responsibilities

• Design, develop, and maintain cloud-hosted backend services and APIs using Python/Node.js.
• Configure and manage IoT communication protocols such as MQTT and TCP to ensure reliable device connectivity.
• Build and support solutions leveraging AWS Greengrass, Azure IoT Hub, or similar IoT platforms.
• Deploy, configure, and manage IoT devices, sensors, and gateways in both field and production environments.
• Monitor, troubleshoot, and optimize backend systems for performance, reliability, and scalability.
• Collaborate closely with frontend, cloud, and data engineering teams to ensure seamless system integration and robust data pipelines.

Requirements

• Bachelor’s degree in Computer Science, Information Technology, or a related discipline.
• Proficiency in Python/Node.js backend languages (Other programming languages welcomed too)
• Minimum 4 year of hands-on experience in IoT backend or system development.
• Practical experience working with sensors, microcontrollers, and networking/communication protocols.
• Strong understanding of embedded programming, device-level debugging, and hardware–software integration

By submitting your resume, you consent to the collection, use, and disclosure of your personal information per ScienTec’s Privacy Policy (scientecconsulting.com/privacy-policy).

This authorizes us to:

• Contact you about potential opportunities.

• Delete personal data as it is not required at this application stage.

All applications will be processed with strict confidence. Only shortlisted candidates will be contacted.

Elaine Wong (Zoe) l Outsourcing Team

ScienTec Consulting Pte Ltd - 11C5781

Working hours: Mon-Fri, Office hours (Hybrid)
Location: Punggol
Job Type: Contract (Renewable basis)

Responsibilities

• Design, develop, and maintain scalable platform capabilities used across multiple government agencies
• Drive engineering excellence in system design, development, and operations within a cloud-native environment
• Build front-end and backend services, APIs, and automation workflows using React & Node.js / Python
• Maintain and enhance CI/CD pipelines and secure deployment workflows (GitLab, Terraform)
• Champion DevOps best practices across automation, scalability, reliability, and resiliency
• Contribute to large-scale cloud automation initiatives across multiple Cloud Service Providers

Requirements

• Minimum 4 years of full stack development experience
• Hands-on working experiences in React & Node.js / Python
• Familiarity with cloud infrastructure, deployment, and automation
• Exposure to CI/CD pipelines (e.g. GitLab) and Infrastructure as Code tools (e.g. Terraform)
• Understanding of DevOps practices and Git-based workflows
• Keen interest in learning Infrastructure as Code, Policies as Code, and cloud platform engineering

By submitting your resume, you consent to the collection, use, and disclosure of your personal information per ScienTec’s Privacy Policy (scientecconsulting.com/privacy-policy).

This authorizes us to:

• Contact you about potential opportunities.

• Delete personal data as it is not required at this application stage.

All applications will be processed with strict confidence. Only shortlisted candidates will be contacted.

Elaine Wong (Zoe) l Outsourcing Team

ScienTec Consulting Pte Ltd - 11C5781

We are seeking a skilled Salesforce Developer to design, build, and deliver scalable solutions for large-scale government projects.

• Opportunity to be part of impactful digital transformation initiatives within the public sector.
• Attractive remuneration package commensurate with experience.
• Hybrid work arrangement.

Responsibilities:

• Design, develop, and implement customized solutions on the Salesforce platform using Apex, Lightning Web Components (LWC).
• Collaborate with stakeholders, business analysts, and project teams to gather and translate requirements into technical solutions.
• Build and enhance scalable applications, workflows, and integrations aligned with government compliance and security standards.
• Develop and maintain APIs and integrations between Salesforce and external systems.
• Troubleshoot and resolve technical issues, ensuring system performance and reliability.
• Participate in Agile/Scrum ceremonies and contribute to continuous improvement of development processes.

Requirements:

• 3–5 years of hands-on experience in Salesforce development.
• Strong proficiency in Apex, JavaScript, Lightning Web Components (LWC), and Salesforce APIs.
• Experience with Salesforce configuration (Flows, Process Builder, Validation Rules).
• Understanding of secure coding practices and data protection standards.
• Salesforce certifications are highly advantageous.

Interested candidates may click on apply or apply via email to spml@scientecpersonnel.com (indicating Job ID J67261 for faster processing). 

By submitting your resume, you consent to the collection, use, and disclosure of your personal information per ScienTec’s Privacy Policy (scientecconsulting.com/privacy-policy).

This authorizes us to:

• Contact you about potential opportunities.
• Delete personal data as it is not required at this application stage.

All applications will be processed with strict confidence. Only shortlisted candidates will be contacted.

Lee Wen Ying (Mattias) - R23112909

ScienTec Consulting Pte Ltd - 11C5781