Total 43 java developer job vacancies in D04 Harbourfront,Telok Blangah, Sentosa Island

Allied Container Group is a leadingcontainer haulage operator and yard operator founded in Singapore in 1975. Weare dedicated to using technology and artificial intelligence to automate andimprove the company’s current operations via software and hardware means.

As part of the Technology &Operations team, we are looking for a Web Developer to work onexisting enterprise web applications.

Job Responsibilities

• Develop and maintain web services to support business function while adhering to performance and quality code best practices
• Work with project team members to identify product requirements and define scope
• Collaborate with UI/UX team to ensure consistency in design
• Monitor and manage Cloud systems
• Document product and project information

Job Requirements

• Bachelor's degree or equivalent experience in Computer Science or related field
• Hands-on frontend and backend development experience in PHP, JavaScript, HTML, CSS, related frameworks and code versioning tools (e.g. Git, SVN)
• Good knowledge of databases like MySQL and others (NoSQL knowledge is a plus).
• Fundamental appreciation of UI/UX practices
• Understanding of Cloud services e.g. AWS, Azure
• Understanding of system testing, automated testing is a plus.

Location

• Lavender Office

Location: Alexandra Road

Working hours: Mon-Fri, Office hours

Key Responsibilities

• Maintain and enhance enterprise Java applications, including change requests,bug fixes, performance optimisation, and system stability improvements.
• Provide production support, incident management, and root cause analysis (RCA).
• Conduct impact assessments for system changes and ensure minimal disruption to live environments.
• Implement security fixes from code reviews, vulnerability assessments, and penetration testing.
• Support system monitoring, backups, disaster recovery, and contribute to modernisation initiatives.

Requirements

• Degree in Computer Science / IT / Engineering or equivalent experience.
• Min. 4 years of experience supporting and maintaining enterprise systems.
• Strong troubleshooting skills and experience working in production environments.
• Hands-on experience with React, Java (preferably Java 8), Spring Framework, and Oracle WebLogic.
• Experience with Oracle/Sybase databases and legacy Java web technologies (JSP,JSTL, Struts/JSF, jQuery).
• Familiarity with Linux/Unix environments, version control (Git/SVN), andauthentication integrations (LDAP/AD/SiteMinder).

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

Mandatory Skills

Required Backend Technical Skills

  - Strong proficiency in Java (Java 17+) with deep understanding of core concepts
  - Expert-level Spring Boot framework knowledge (Spring MVC, Spring Data, Spring Security, Spring Cloud)
  - Solid understanding of microservices architecture patterns and best practices
  - Experience with relational databases (Maria DB) and SQL optimization
  - Strong knowledge of RESTful API design principles
  - Experience with message queues (Kafka, IBM MQ, etc.)
  - Unit testing and integration testing (JUnit, Mockito, Karate)
  - Strong understanding of design patterns and SOLID principles

  Required Frontend Technical Skills

  - Expert-level Typescript React 18+ experience with deep understanding of hooks, context, and component lifecycle
  - Strong Redux and Redux Toolkit (RTK) proficiency for state management
  - RTK Query for efficient data fetching and caching
  - Micro Frontend (MFE) architecture design and implementation (Module Federation, Single-SPA, or similar)
  - Advanced HTML5 and semantic markup
  - Expert-level CSS3, including Flexbox, Grid, and responsive design
  - CSS-in-JS solutions (Styled Components, Emotion)
  - Modern JavaScript/TypeScript (ES6+)
  - Frontend build tools (Webpack, Vite, or similar)
  - Frontend testing frameworks (Jest, React Testing Library, Cypress, Playwright)
  - Performance optimization techniques (code splitting, lazy loading, memoization)

  Additional Technical Experience (Preferred)

  - TypeScript for type safety
  - Cloud platforms (PCF, AWS, OCP)
  - Containerization (Docker) and orchestration (Kubernetes)
  - CI/CD pipelines (Jenkins, GitLab CI, GitHub Actions)
  - Event-driven architecture
  - Design systems and component libraries (Storybook)
  - Monitoring and observability tools (Prometheus, Grafana, ELK stack, Sentry)
  - Performance profiling and optimization (Lighthouse, Web Vitals)

  Architecture & Design Skills

  - Microservices and Micro Frontend architecture patterns
  - API design and integration patterns
  - Distributed systems and caching strategies
  - Security best practices (OAuth, JWT, CORS, XSS, CSRF prevention)
  - Scalability and performance optimization
  - Domain-driven design (DDD)

  Soft Skills

  - Strong problem-solving and analytical thinking abilities across frontend and backend
  - Excellent communication skills for technical discussions and documentation
  - Ability to mentor and guide team members on both frontend and backend technologies
  - Self-motivated with ability to work independently and in teams
  - Strong ownership and accountability mindset
  - Comfortable context-switching between frontend and backend work
  - Ability to make pragmatic technical trade-offs

Preferred Skills

Nice to Have

  - Experience with agile/scrum methodologies
  - Contributions to open-source projects
  - Understanding of DevOps practices

Brief Job Description

Position Overview                                                                                                   
                                                                                                                       
  We are seeking highly skilled Senior Full Stack Developers with deep expertise in both Java Spring Boot backend and modern React frontend technologies. The ideal candidate will have strong technical fundamentals across the entire stack, proven ability to design scalable systems, and experience leading development efforts.             
 
  Key Responsibilities

  - Design, develop, and maintain full-stack applications using Java Spring Boot and React
  - Build and optimize RESTful APIs, microservices.
  - Implement and maintain Micro Frontend (MFE) architectures
  - Mentor junior and mid-level developers, conduct comprehensive code reviews
  - Drive best practices across the entire technology stack
  - Collaborate with cross-functional teams including DevOps, UX/UI designers, and product managers
  - Troubleshoot complex production issues spanning frontend and backend
  - Drive technical innovation and continuous improvement initiatives
  - Participate in system design discussions and contribute to technical roadmap

- Possess a degree in Computer Science, Information Technology, or related field.
- 3 to 7 years of hands-on software development experience in Java and/or Kotlin.
- Good written and verbal communication skills.
- Agile, fast learner and able to adapt to changes.

** not for android application

- Experience in TypeScript, React, C#, MSSQL

- Possess a degree in Computer Science, Information Technology, or related field.
- 3 to 7 years of hands-on software development experience in Python.
- Good written and verbal communication skills.
- Agile, fast learner and able to adapt to changes.

** not for android application

- Experience in TypeScript, React, C#, MSSQL

- Possess a degree in Computer Science, Information Technology, or related field.
- 3 to 7 years of hands-on software development experience in Java and/or Kotlin.
- Good written and verbal communication skills.
- Agile, fast learner and able to adapt to changes.

** not for android application

- Experience in TypeScript, React, C#, MSSQL

Possess a degree in Computer Science, Information Technology, or related field.
• At least 5 years of relevant experience in software development, DevSecOps, and production/platform support.
• Proficient in modern programming languages (C#, TypeScript/JavaScript) with hands-on experience in Test Driven Development (TDD).
• Solid understanding of SOLID principles, design patterns, and data models.
• Hands-on experience with building and integrating REST APIs and webhooks.
• Familiarity with CI/CD pipelines, Git, and infrastructure-as-code principles.
• Experience with identity and access management (SSO, OAuth, SCIM).
• Proven problem-solving, analytical, communication, leadership, and stakeholder management.
• Familiarity with AWS EKS, and Snowflake.
• Good written and verbal communication skills.
• Agile, fast learner and able to adapt to changes.

GOOD to have Skillsets

• Experience in integrating internal application with SaaS product.
• Experience in working with INTAPP DealCloud.

Key Responsibilities

• Maintain and enhance enterprise Java applications, including change requests,bug fixes, performance optimisation, and system stability improvements.
• Provide production support, incident management, and root cause analysis (RCA).
• Conduct impact assessments for system changes and ensure minimal disruption to live environments.
• Implement security fixes from code reviews, vulnerability assessments, and penetration testing.
• Support system monitoring, backups, disaster recovery, and contribute to modernisation initiatives.

Requirements

• Degree in Computer Science / IT / Engineering or equivalent experience.
• Min. 4 years of experience supporting and maintaining enterprise systems.
• Strong troubleshooting skills and experience working in production environments.
• Hands-on experience with React, Java (preferably Java 8), Spring Framework, and Oracle WebLogic.
• Experience with Oracle/Sybase databases and legacy Java web technologies (JSP,JSTL, Struts/JSF, jQuery).
• Familiarity with Linux/Unix environments, version control (Git/SVN), andauthentication integrations (LDAP/AD/SiteMinder).

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

Requirements :-

• Looking for a developer with experience working on SRE (Site Reliability Engineering) related projects, in observability and in systems/application monitoring.
• Work with engineering and SRE teams to develop monitoring and health check capabilities for application and infrastructure.
• Provide support for the monitoring and health check capabilities developed.
• As an SRE engineer, you should be comfortable working with scripts, databases, middleware components, developing secure applications, writing/using API and performing frontend, UI/UX design and development.
• Develop application and infrastructure health checks scripts / programs for applications and infrastructure.
• Develop web application dashboards for monitoring and situational awareness.

Requirements :-

• You should be a university graduate (computer science or related field) with good experience working with contemporary programmming languages and web technologies.
• Experience with developing scripts for monitoring, alerting and automation.
• Experience with developing web applications
• Good working knowledge and experience in Java, Java Spring Boot and Python.
• Experience and working knowledge in JavaScript (NodeJS) and Shell Scripting.
• Good working knowledge and experience in querying Elasticsearch.

· Good working knowledge and experience in integrating with Kafka.

· Working experience with relational SQL databases.

· Web development experience such as HTML5, CSS, JavaScript.

· Working knowledge in REST, JSON, GIT.

· Good understanding in Internet Technologies, protocols, and security such as TCP/IP, HTTPS, DNS, REST, LDAP

Key Responsibilities –

Design, develop, and maintain high-performance Java backend systems for data processing and analytics.
Collaborate with cross-functional teams to translate business requirements into technical solutions
Implement parallel data processing solutions to handle large-scale datasets efficiently
Optimize memory usage and system performance for data-intensive applications
Develop and maintain integrations with relational databases and data warehouses
Create and optimize complex SQL queries for data extraction, transformation, and analysis
Implement data security measures and ensure compliance with data protection regulations
Participate in code reviews and maintain high code quality standards
Design and implement CI/CD pipelines for data engineering workflows
Technical Skills –

• 7+ years of Java backend development experience with focus on data processing applications
• 5+ years of advanced SQL experience with complex query optimization
• Deep understanding of parallel data processing frameworks and techniques
• Expertise in memory optimization and performance tuning for large datasets
• Strong experience with relational database integration (PostgreSQL, MS SQL Server preferred)
• Proficiency with cloud platforms (AWS, Google Cloud, or Azure required)
• Solid understanding of SDLC best practices, version control, and CI/CD pipelines
• Knowledge of data security principles and privacy protection measures

Mathematical & Analytical Skills –

• Strong mathematical background with ability to work with complex formulas and algorithms
• Excellent analytical and problem-solving capabilities
• Experience with statistical analysis and data modelling concepts

Soft Skills –

• Excellent written and verbal communication skills
• Strong attention to detail and commitment to data accuracy
• Passion for working with data and numerical analysis
• Ability to work collaboratively in cross-functional teams
• Self-motivated with strong project management skills

Preferred Qualifications –

• AWS certification or extensive AWS experience
• Python programming experience for data analysis and scripting
• Experience with MS SQL Server and/or PostgreSQL dialects
• Knowledge of data warehousing concepts and ETL processes
• Experience with containerization (Docker, Kubernetes)
• Familiarity with data visualization tools and techniques
• Experience with Agile/Scrum methodologies

Education –
Bachelor's degree in Computer Science, Mathematics, Engineering, or related technical field

Master's degree preferred

Key Responsibilities

• Design and implement backend modules using Java and related frameworks

• Develop and maintain APIs to support system integration

• Write efficient, reusable, and testable code following best practices

• Troubleshoot application defects and implement long-term fixes

• Optimize application performance and database interactions

• Participate in technical design discussions and code reviews

• Collaborate with frontend, QA, and infrastructure teams for seamless releases

• Maintain technical documentation and contribute to continuous improvements

Required Qualifications

• Degree in Computer Science, Information Technology, or equivalent experience

• 3–5 years of hands-on Java development experience

• Strong knowledge of object-oriented programming principles

• Experience with Spring, RESTful services, and backend integration

• Familiarity with SQL databases and query optimization

• Understanding of version control systems such as Git

• Strong analytical and debugging skills

Job Title: Senior Software Developer (Enterprise Application Support & Delivery) – 12 Months Contract

Job Summary:
We are seeking a highly experienced Software Developer with a strong background in enterprise application delivery and production support within regulated environments. The role requires hands-on involvement across the full lifecycle, with a focus on maintaining and enhancing complex business-critical systems.

Key Responsibilities:

• Support and enhance enterprise-level applications in a production environment
• Participate in incident, problem, and change management processes
• Perform root cause analysis (RCA) and ensure timely resolution of issues
• Collaborate with stakeholders to gather and refine requirements
• Support UAT, deployment, and post-release validation activities
• Ensure compliance with security, audit, and operational standards

Requirements:

• Bachelor’s degree in IT / Computer Science or related field
• 10+ years of experience in software development and application support
• Proven experience in enterprise or government/regulated environments
• Hands-on experience with application support, not just development
• Familiar with Agile/Scrum delivery models
• Experience using enterprise tools (e.g., JIRA, ServiceNow, or equivalent)
• Strong experience in handling production issues and stakeholder management

At Aegis Technologies, we empower organizations with robust cyber and network security solutions. Founded in 2016, our Singapore-based company specializes in Deep Packet Inspection (DPI) technologies, providing cutting-edge products and solutions for governments, telecommunications companies, and large enterprises. We are committed to simplifying cybersecurity management without compromising security, ensuring that our clients can address evolving threats effectively.

About the Role

We are seeking a talented and motivated Full-Stack Software Developer to join our engineering team, contributing to the research and development of innovative in-house software solutions. In this role, you will participate in the full software development lifecycle—from ideation and design to development, testing, deployment, and maintenance.

This is a hands-on role where you'll work on complex systems, write efficient and scalable code, and collaborate closely with a skilled team of developers and engineers.

Responsibilities

• Design, develop, and maintain robust and scalable software modules and systems.
• Participate in the full software development lifecycle, including specification, prototyping, implementation, testing, and support.
• Write clean, testable, and efficient code following best practices.
• Lead and participate in code reviews to ensure code quality and knowledge sharing.
• Optimize data processing and relational structures in PostgreSQL databases.
• Perform unit testing, debugging, and performance tuning.
• Contribute to system performance optimization across various processing components.

Requirements

• Experience in full-stack software development, system analysis, and software architecture.
• Proficiency in C programming language.
• Strong working knowledge of Linux environments.
• Experience with multi-threaded and multi-core programming.
• Solid understanding of PostgreSQL or other relational database systems, including data modeling and performance tuning.
• Familiarity with writing testable code and applying software engineering best practices.

Preferred Qualifications

* Exposure to modern CI/CD practices.

* Familiarity with version control tools (e.g., Git).

* Ability to collaborate in an agile development environment.
* Enjoys exploring of new technologies

 Possess a degree in Computer Science, Information Technology, or related field.
- 3 to 7 years of hands-on software development experience in Java/Kotlin.
- Good written and verbal communication skills.
- Agile, fast learner and able to adapt to changes.

Preferred Skills

- Experience in TypeScript, React, C#, MSSQL

• Developing world-class solutions for FinTech clients
• Endless learning opportunity on Trading knowledge / domain
• Encouraging work life balance and open culture

We're hiring a group of Java Software Developers to be part of an agile team building cutting-edge web based solutions for our FinTech clients. If you're passionate about clean code, performance, and real-world impact, this role is for you.

• Basic up to $8,200/month + AWS + Performance Bonus
• Up to 18 days Annual Leave, medical, and other staff benefits

Key Responsibilities:

1. Develop, test, deploy, and maintain enterprise-grade web based solutions.
2. Collaborate with a group of software engineers, business analysts, and software architects throughout the full SDLC.
3. Involve in pair programming, code and design reviews to ensure high-quality standards.
4. Deploy software application to production and provide post-implementation support.
5. Ensure development best practices and standards are met.

Requirements:

• min. Degree in Computer Science, IT, or any relevant discipline.
• Min. 2 years of working experience in Java development
• Strong in Java, Spring Framework, RESTful/SOAP APIs, Web Services
• Knowledge of secure and scalable application design
• Collaborative mindset and eagerness to grow in a fast-paced team

If you're ready to take your Java skills to the next level and build real-world FinTech solutions, apply now with your updated resume!
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.

Ng Kee Hung (Vickus) - R2091423
ScienTec Consulting Pte Ltd - 11C5781