Total 94 java developer job vacancies in D14 Geylang, Eunos

Job Summary:

This role involves developing and maintaining full-stack solutions across Blazor UI, APIs, service layers, and databases, while managing Azure-based data pipelines and background jobs for marketplace and inventory sync. The candidate will integrate third-party APIs (e.g., Amazon SP-API), generate large-scale reports, optimize SQL and job performance, enhance AI agent features on Azure OpenAI, and resolve production issues. Strong coding, problem-solving, and clear communication with both technical and non-technical stakeholders are essential.

Key Responsibilities:

• Build new features across Blazor UI, API controllers, service layer, and database models.

• Develop and maintain background job services for marketplace and inventory data sync.

• Build and optimize data pipelines on Azure; transform data across sources for integration and analysis.

• Integrate with third-party APIs, eg. Amazon SP-API

• Generate Excel, PDF, and CSV reports from large production datasets.

• Debug and resolve production issues using Azure Application Insights and telemetry.

• Optimize SQL queries and job performance across large SQL Server datasets.

• Extend AI agent features built on Azure OpenAI and Semantic Kernel.

• Write efficient, reusable, and scalable code, document and communicate solutions clearly to both technical and non-technical stakeholders.

Requirements:

• Min 2 + years of hands-on C# / .NET development (ASP.NET Core) experience

• Hands-on Blazor Server experience — required

• Proficient with Entity Framework Core and SQL Server

• Solid grasp of dependency injection, repository pattern, and service layer architecture

• Confident reading and extending large, existing codebases

• Familiarity with Microsoft Azure (App Service, Blob Storage, SignalR)

• Familiarity with .NET Worker Services and Azure Pipelines

Additional requirements:

• Solid grasp of dependency injection, repository pattern, and service layer architecture

• Confident reading and extending large, existing codebases

Good to Have:

• Experience with Telerik UI for Blazor

• CI/CD exposure in Azure DevOps

• Azure Application Insights — monitoring, telemetry, and production diagnostics

• Prior experience with REST API integrations

• Large-scale database work — bulk operations, window functions, performance tuning

• Prior experience with AI agentic development — LLM tool use, agent orchestration

·      5 Work Days, 8.30am-5.30pm / 9am-6pm

·      Office Near to Kaki Bukit MRT, Singapore

·      Medical Benefits Provided

·      Entitled to Yearly Bonus & Performance Bonus

Job Responsibilities (Senior / Backend Engineer)

Design & Development

• Take ownership of the design, development, refactoring, and performance optimization of core system components, delivering high-quality and maintainable code.

Technical Innovation & Problem-Solving

• Research, design, and implement innovative solutions to address complex business and technical problems, particularly in high-concurrency scenarios.

System Architecture

• Contribute to system architecture decisions, focusing on scalability, high availability, and fault tolerance.

Full-Lifecycle Participation

• Actively participate in the entire software development lifecycle, from requirements analysis and system design to testing, deployment, and operational monitoring.

Collaboration & Knowledge Sharing

• Work effectively with local and regional team members, as well as business unit partners.
• Share knowledge, promote best practices, and help elevate the team's overall technical capabilities.

Job Requirements

1. Bachelor's or Master's degree in Computer Science, Software Engineering, or a related technical discipline
2. 2+ years of relevant software development experience.
3. Strong understanding of computer science fundamentals (operating systems, network principles, data structures, and algorithms)
4. Programming Languages: High proficiency in Java (including JVM internals and performance tuning) or Node.js (including its event-driven architecture and asynchronous programming model). Proficiency in both is a significant plus.
5. Frameworks & Middleware: Proficient with common open-source frameworks and tools such as Kafka, RocketMQ, Dubbo, Zookeeper, and Redis.
6. Deep knowledge of MySQL, including schema design, SQL optimization, and database scaling strategies.
7. System Experience: Proven, hands-on experience in building, deploying, and maintaining high-concurrency, high-performance, and high-availability systems.

Reolink, a leader in intelligent visual technology for homes and businesses, was founded in 2009 by a group of engineers with a strong commitment to and passion for smarter security solutions.

Our products are now trusted by millions of users acrossmore than 110 countries and regions worldwide. Building on this trust, wecontinue expanding our presence and bringing our innovations to more markets around the globe. 

Reolink remains committed to delivering advanced, reliable, and user‑centric solutions that empower people to protect what matters most.

Functional / Technical

• Communicate highly technical issues to non-technical audience.
• Earn good reputation of being technically strong in the organization by help solving problems others struggle
• Development and delivery with Java, EJB, Spring Boot, MySQL, Oracle and IBM MQ.
• Understand business / system requirements and translate them into technical solutions that are scalable, stable and fit for purpose.
• Tackle very complex legacy defects that mediocre developers cannot analyse/solve.
• Ensure adherence to the bank standards (including code, security and performance).
• The role provides exposures to Wealth Management systems.
• Passionate about technologies and building robust and scalable Java Systems.
• Analysis, design coding, and implementation of complex and custom-built applications.
• Work collaboratively with team to achieve goals. Experience working in Agile methodologies, such as Scrum, and/or Extreme programming.
• Experience in following in following best practices like Test-Driven Development (TDD) and continuous Integration (CI)
• Investigate and resolve production issues to help maintain a stable production environment; remain cool and effective in crisis.

 Technical

Must Have:

• Core Java 8+ and JUnit.
• Spring Boot
• React JS
• Strong computer science knowledge (algorithms, data structures, object-oriented design)
• TDD. Able to write acceptance test.
• Maven
• Basic Linux shell scripting commands
• Java Messaging Concepts. (JMS, MQ)
• Relational Database concepts, SQL, joins, index, triggers etc.
• Web Services Rest, SOAP.
• Spring core concepts.
• Experience in SQL queries optimisation
• Familiarity with Intellij, Git, SonarQube/SonarLint
• JBOSS (or any other application server knowledge).
• Java Server Faces, JPA, EJB knowledge.
• Able to write/understand complex SQL queries.
• Kafka

- Develop web, interactive, mobile and robotics applications.

- Translate concepts into actual implementation with a focus on usability and speed.

- Handle all software and web development work.

- Develop overall concepts for improving the user experience within a business webpage or product, ensuring all interactions are intuitive and convenient for customers.

- Conduct testing of completed applications, websites and software to assess user experience and functionality of application front end.

- Create surveys for research through various social media platforms to gather feedback on user's ease of use and incorporate the findings in the development.

- Maintaining and enhancing the website once built.

Requirement

1. Candidate must possess at least Diploma/Advanced/Higher/Graduate Diploma, Bachelor's Degree/Post Graduate Diploma/Professional Degree in Engineering (Computer/Telecommunication), Computer Science/Information Technology or equivalent.

2. At least 5 Year(s) of working experience in the related field is required for this position.

3. Experience in JavaScript, HTML5, CSS, JQuery, Node.js/Express.js/AngularJS , Python/PHP etc.

4. Proficiency in graphic design software including Adobe Photoshop, Adobe Illustrator, and other visual design tools.

Avensys is a reputed global IT professional services company headquartered in Singapore. Our service spectrum includes enterprise solution consulting, business intelligence, business process automation and managed services. Given our decade of success, we have evolved to become one of the top trusted providers in Singapore and service a client base across banking and financial services, insurance, information technology, healthcare, retail and supply chain.

Role: Dynamics 365 CRM Developer

Specialization: D365 Field Service

Job Summary

We are seeking a skilled Dynamics 365 CRM Developer to design, develop, and implement customized solutions within the Microsoft Dynamics 365 platform. The ideal candidate will work closely with business stakeholders and functional teams to deliver scalable CRM solutions that enhance business processes and customer experience

Key Responsibilities

• Configure, customize, and design UI for the D365 Field Service Mobile App.
• Align existing functionalities and implement required enhancements.
• Support application migration efforts and ongoing project requirements.
• Collaborate on handovers to ensure seamless delivery.

Must-Have Skills (Minimum 2 Years Hands-On)

• Microsoft Dynamics 365 CRM, with strong D365 Field Service experience.
• Mobile app configurations, customizations, and UI design (JavaScript, HTML).
• Power Automate, SSRS Reporting, Power BI.
• C# for plugins and custom logic.

Nice-to-Have

• Dataverse, PCF controls, offline capabilities.
• Integration with Azure or other Microsoft services.

WHAT’S ON OFFER

You will be remunerated with an excellent base salary and entitled to attractive company benefits. Additionally, you will get the opportunity to enjoy a fun and collaborative work environment, alongside a strong career progression. 

To submit your application, please apply online or submit your CV to ashwak@aven-sys.com, You interest will be treated with strict confidentiality. 

CONSULTANT DETAILS

Consultant Name             : Ashwak Ahmed

Privacy Statement: Data collected will be used for recruitment purposes only. Personal data provided will be used strictly in accordance with the relevant data protection law and Avensys' privacy policy.

Must have skills:

Full stack developer (Java+Angular)

Java Fullstack Development

Java

Angular

Python

PL/SQL

MS PowerApp for mobile

Team management

REST API

Website,Stakeholder Management

MySQL

Agile

LAMP Technologies

Leadership

Spring Boot

Good to have: Python, PL/SQL

Job Description:

- As an Application Lead, you will be responsible for designing, building, and testing web-based applications for various site components and editing site content. You will document technical designs and specifications while researching and incorporating updated content for websites. You are expected to be a subject matter expert, collaborate and manage the team to perform effectively. You will be responsible for team decisions, engage with multiple teams, and contribute to key decisions. Additionally, you will provide solutions to problems for your immediate team and across multiple teams. Advanced proficiency in Java Full Stack Development is required. Advanced proficiency in Java is recommended. Advanced proficiency in Python Software Development, PL/SQL (Programming Language), Microsoft Power Apps, and REST API Development is suggested.

Innovate and implement new features to enhance user experience on web applications.

Conduct regular code reviews to ensure quality and adherence to best practices.

Collaborate with cross-functional teams to gather requirements and deliver effective solutions.

Stay updated with the latest industry trends and technologies to continuously improve development processes.

Mentor junior developers and contribute to their professional growth.

GENERAL DESCRIPTION

This role is for a Java developer for output management application in Wealth Management domain, desirable to have Quadient Inspire software experience.

SKILLS REQUIREMENTS OF THE POSITION

Professional

Minimum 8 years of development experience in Front-end applications, programming languages and back-end queries.

Well organized and ability to carry out multiple tasks. Able to influence and drive projects to meet key milestones and overcome challenges.

Preferably, have experience in finance/ banking / Wealth management domain

Domain knowledge on Client Output management is a plus

Communicate highly technical issues to non-technical audience

Understand business / system requirements and translate them into technical solutions that are scalable, stable, and fit for purpose.

Ensure adherence to the bank standards (including code, security and performance)

Work collaboratively with team to achieve goals. Experience working in Agile methodologies, such as Scrum, and/or Extreme programming

Technical

• Strong knowledge on Java, Spring boot, Hibernate frameworks.
• Strong knowledge on Service oriented architecture, RESTful services
• Good knowledge of SQL (Oracle, Postgres etc.)
• Knowledge of Quadient Inspire platform will be an advantage
• Working knowledge of Kubernetes (PKS) and containerization, streaming using Kafka, Avro schema
• Strong computer science knowledge (algorithms, data structures, object-oriented design)
• Working knowledge of GITLAB repositories, Maven, Octopus, CI / CD pipeline
• Basic Linux shell scripting commands
• Familiarity with Intellij, SonarQube/SonarLint

Responsibilities

• Design, develop, and maintain backend services for core product features.
• Optimize backend logic, database queries, and service integrations to support high concurrency, low latency, and high availability.
• Participate in backend technical design, implementation, and testing to ensure production-ready delivery.
• Collaborate with product, frontend and DevOps team to deliver backend features effectively.
• Monitor system performance, troubleshoot issues, and provide timely fixes for production incidents.
• Write and maintain clear technical documentation to support system maintainability and knowledge sharing.
• Continuously improve backend engineering practices, tools, and system reliability.

Requirements:

• Bachelor’s degree in computer science, software engineering, or a related technical field.
• 2–5 years of hands-on experience in Software Development, focusing on backend development, with solid exposure to building production-grade services. Fresh graduates with relevant internship or project experience are welcomed to apply.
• Practical experience with .NET Core and C# in real-world backend applications.
• Strong understanding of RESTful API design, HTTP fundamentals, and basic web technologies (HTML, CSS, JavaScript) for backend integration.
• Experience working with relational databases (e.g. MySQL, PostgreSQL, SQL Server).

Preferred Skills

• Knowledge of NoSQL solutions and cloud platforms such as AWS, AliCloud, GCP etc.
• Familiarity with Docker, basic Kubernetes concepts, microservices architecture, or distributed system patterns is a plus.

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Role: .Net MS SQL Server

JobRequisition Number: MB008

Location: Singapore

JobDescription:

•           4 - 6+ years of experience in IT industry and experience supporting Microsoftapplications.

•           Proficient in developing applications using Microsoft .NET Framework, ASP.NET,.Net Core, MVC, HTML5, CSS, JavaScript,Bootstrap, Telerik Controls, JIRA, Angular and GitHub.

•           Proficient in MS SQL server / SSIS and SSRS design and development.

•           Write clean, scalable code using .NET programming languages Test and deployapplications and systems.

•           Create applications from scratch, configure existing systems and provide usersupport.

•           Strong experience in developing relational databases (MS SQL/Oracle)- storedprocedures, views, query performance tuning, etc.

•           Manage Softwarereleases, projects, enhancements, security patches, DR Drills industry testingand follow Secured Software Development Life cycle

•           Should be able to coordinate with internal support, IT security, Infrastakeholders, compliance, Quality group, user groups, interfacing applications,vendor teams to ensure timely project deliverables, environments stability,security and service availability during operating hours.

•           Perform any scheduled and standard maintenance during non-operating hours whichmay include weekends.

•           Monitor Service Levels, system / application alerts, maintain operating manualsand procedures, identify trouble areas and take proactive measures to avoidincidents.

•           Design, code and test web applications and supporting web services for apps.

•           Participate in requirements analysis Collaborate with internal teams to producesoftware design and architecture.

•           Revise, update, refactor and debug code.

•           Develop documentation throughout the software development life cycle (SDLC)serve as an expert on applications and provide technical support.

•           Ability to work in a fast paced, constantly changing Agile environment.

•           Strong interpersonal and effective communication (both written and verbal)skills.

•           Knowledge of functional testing, integration testing, system testing, and useracceptance testing.

•           Knowledge of Web API programming is advantageous.

•           Able to adapt readily & effectively to unexpected or changing conditions.

•           Analytical mindset and problem-solving attitude.

Project Scope:

Project Name: SP2A- TradeTransformation Project.

As part of System Development Life Cycle (SDLC)gathering requirements, development, testing, Implementation and PostImplementation support using the technologies below.

·      Database: MS SQL Server, SSDT

·      Programing Languages: MS SQL Server / C#.net, .NET,ASP.NET, SSIS

·      Product: Customer Liability Inquiry Portal System(CLIPS)

·      Scripting: Windows

§  Developthe pipeline to process the FTI interface in CLIPS application

§  DevelopCLIPS layout for the respective interface

§  Definethe source code configuration

§  Customizethe product configuration to handle parallel interface for the FITAS and newFTI interface

§  Configureand establish connectivity between FTI and CLIPS

§  Test:Perform SIT with FTI and FITAS parallel. Support UAT functional testing.

§  Deployment:Support for Prod deployment activities (documentation, preparing and go-live)

Pleaseforward your resume in MS word format to Careers@infogainglobal.com

Pleasedo not send a PDF Format Resume. Send the following details

1.Notice period

2.Current Salary

3.Expected Salary

4.Visa Status in Singapore

5. Current Location

Reolink, a leader in intelligent visual technology for homes and businesses, was founded in 2009 by a group of engineers with a strong commitment to and passion for smarter security solutions.

Our products are now trusted by millions of users acrossmore than 110 countries and regions worldwide. Building on this trust, wecontinue expanding our presence and bringing our innovations to more markets around the globe. Reolink remains committed to delivering advanced, reliable, and user‑centric solutions that empower people to protect what matters most.

Key Highlights:

·      5 Work Days, 8.30am-5.30pm / 9am-6pm

·      Office Near to Kaki Bukit MRT, Singapore

·      Medical Benefits Provided

·      Entitled to Yearly Bonus & Performance Bonus

Job Responsibilities (Senior / Backend Engineer)

Design & Development

• Take ownership of the design, development, refactoring, and performance optimization of core system components, delivering high-quality and maintainable code.

Technical Innovation & Problem-Solving

• Research, design, and implement innovative solutions to address complex business and technical problems, particularly in high-concurrency scenarios.

System Architecture

• Contribute to system architecture decisions, focusing on scalability, high availability, and fault tolerance.

Full-Lifecycle Participation

• Actively participate in the entire software development lifecycle, from requirements analysis and system design to testing, deployment, and operational monitoring.

Collaboration & Knowledge Sharing

• Work effectively with local and regional team members, as well as business unit partners.
• Share knowledge, promote best practices, and help elevate the team's overall technical capabilities.

Job Requirements

1. Bachelor's or Master's degree in Computer Science, Software Engineering, or a related technical discipline
2. 3+ years of relevant software development experience.
3. Strong understanding of computer science fundamentals (operating systems, network principles, data structures, and algorithms)
4. Programming Languages: High proficiency in Java (including JVM internals and performance tuning) or Node.js (including its event-driven architecture and asynchronous programming model). Proficiency in both is a significant plus.
5. Frameworks & Middleware: Proficient with common open-source frameworks and tools such as Kafka, RocketMQ, Dubbo, Zookeeper, and Redis.
6. Deep knowledge of MySQL, including schema design, SQL optimization, and database scaling strategies.
7. System Experience: Proven, hands-on experience in building, deploying, and maintaining high-concurrency, high-performance, and high-availability systems.

As a tech professional joining our team, you'll be part of a vibrant and enthusiastic working environment, collaborating closely with the Director and a group of highly motivated individuals to work on improving our in-house ERP system and car rental application.

Our company fosters an open culture, where creativity and passion are celebrated and we are on a mission to make a significant impact and bring our brand to the forefront of the rental industry using technology.

Job Description

• Develop and maintain internal system of an ASP.NET (VB, C#) and React.JS web application.
• Using Google Cloud Platform (GCP), Amazon Web Services (AWS) and GoDaddy hosting provider to host our websites.
• Work with the Director and other teams to implement new requirements and troubleshoot existing issues as necessary.
• Supporting our company’s Mobile App and internal website, including regularly reviewing crashes, troubleshooting, fixing, and upgrade the packages.
• Develop,secure, test, deploy and maintain REST APIs.
• Ability to work independently and think about situations critically.

Requirements

• Bachelor’s degree in computer science, engineering or equivalent industry experience.
• Knowledge in server-side scripting including JavaScript, Node.js, Java, C#, Visual Basic.
• Familiar with implementing basic authentication and authorization, including the use of JSON Web Tokens and OAuth.
• Experience with ASP.NET Core and Framework (VB, C#) server-side logic and web applications.
• Experience with Relational Database including SQL Server and Firestore.
• Experience with IIS, Nginx.
• Experience with Google Cloud Platform Firebase products (Cloud Functions, Cloud Firestore, Crashlytics).
• Experience with GitHub for source control and team contribution.
• Willing to learn, well-organised, meticulous.

Overview:

We are looking for a number of Salesforce Developer with hands-on experience in Salesforce development and configuration, preferably within Salesforce Industries (Public Sector Solutions) and Omnistudio. The ideal candidate will play a key role in designing, configuring, and supporting Salesforce-based packaged or SaaS applications — ensuring system stability, scalability, and alignment with business requirements.

Responsibilities:

• Design, build, and configure Salesforce applications to meet business process and application requirements. Develop, and implement Salesforce applications and solution.

• Develop and enhance system functionality through configurations and, where required, Apex or Visualforce customizations.

• Utilize Salesforce Omnistudio components (including Omniscripts, Integration Procedures, and DataRaptors) to deliver scalable solutions.

• Configure and support packaged or SaaS applications, manage releases, and maintain system stability.

• Conduct technical analysis and contribute to the design and configuration for system integrations and customizations.

• Collaborate with cross-functional teams to gather requirements, develop solutions, and implement enhancements.

• Perform thorough testing and quality assurance to ensure high reliability and performance.

• Provide technical guidance, training, and support to team members and stakeholders on Salesforce features and best practices.

• Stay current with industry trends, Salesforce updates, and best practices to continuously improve system performance and team effectiveness.

Requirements:

• Technical Skills:

– Proficiency in Salesforce Omnistudio (Omniscripts, Integration Procedures, DataRaptors) is highly preferred.

– Experience with Salesforce Industries / Public Sector Solutions is a strong advantage.

– Knowledge in Packaged Development Estimating, Packaged Application Integration, and Software Platforms is beneficial.

• Certifications: Must hold at least one of the following (or an equivalent advanced-tier certification):

a. Salesforce Platform App Builder

b. Salesforce JavaScript Developer I

c. Salesforce Platform Developer I

d. Salesforce Platform Developer II

• Strong problem-solving skills and ability to design innovative, efficient solutions.

• Excellent communication and collaboration skills, with the ability to work effectively across teams.

• Demonstrated ability to take ownership of deliverables and contribute to key technical decisions.

Nice to Have:

• Exposure to Salesforce Omnistudio advanced configurations or Public Sector Solutions (PSS) modules.

• Experience leading small teams or mentoring junior developers.

• Familiarity with low-code tools, APIs, and packaged application development methodologies.

• Hands-on experience in Blockchain Development (Solidity / Smart Contracts)
• Strong programming skills in Java / Python
• Experience in Distributed Systems & High-Scale Backend Architecture
• Working knowledge of Kafka, Redis, WebSocket, Netty
• Exposure to DeFi / multi-chain ecosystems / asset tracking
• Strong understanding of system performance optimization and scalability