Total 35 web developer job vacancies in D12 Balestier, Serangoon, Toa Payoh

Software Developer – Roles & Responsibilities

• Lead the development and delivery of payment microservices-based applications in alignment with business timelines and release commitments.
• Design and develop RESTful APIs for digital payment solutions, including Scan & Pay, proxy payments, and interbank fund transfers.
• Implement event-driven architectures using Kafka for asynchronous communication and payment event processing.
• Collaborate with Product Owners, Business Analysts, QA Engineers, DevOps teams, and Solution Architects to deliver high-quality software solutions.
• Review technical designs, code quality, API contracts, and database schema changes to ensure adherence to best practices.
• Mentor and support development team members on Java, Spring Boot, Kafka, coding standards, and exception handling.
• Participate in Agile ceremonies, including sprint planning, backlog grooming, effort estimation, and release planning.
• Troubleshoot and resolve production issues in collaboration with Site Reliability Engineering (SRE) teams.
• Implement and maintain logging, monitoring, and observability solutions using ELK Stack, Grafana, and AppDynamics.
• Ensure application performance, scalability, security, and reliability across all development stages.

Qualifications & Skills

• Bachelor's Degree in Computer Science, Information Technology, Software Engineering, or a related field.
• 5+ years of experience in software development, preferably in banking, fintech, or payment systems.
• Strong proficiency in Java, Spring Boot, Microservices Architecture, and REST API development.
• Hands-on experience with Apache Kafka and event-driven system design.
• Experience working with relational databases and database design principles.
• Knowledge of Agile/Scrum software development methodologies.
• Familiarity with CI/CD pipelines, DevOps practices, and cloud-based deployments.
• Experience with monitoring and observability tools such as ELK Stack, Grafana, and AppDynamics.
• Strong problem-solving, analytical, and communication skills.
• Ability to work effectively in cross-functional and distributed teams.
• Experience in payment systems, digital banking, or financial services.
• Knowledge of SGQR, NETS, PayNow, and interbank payment platforms.
• Understanding of security, compliance, and regulatory requirements in financial applications.
• Experience with production support and incident management processes.

• 5 Work Days, 8.30am-5.30pm / 9am-6pm
• Current Office Near to Kaki Bukit MRT, Singapore
• Will Relocate to Tai Seng MRT in August 2026
• Medical & Dental Benefits Provided
• Entitled to Yearly Bonus & Performance Bonus
• Current Application & Web App are using Java & Node.js **

Job Requirements

• Bachelor's or Master's Degree in Computer Science, Software Engineering, or a related technical discipline
• At least 3 year of software engineer / backend development experience (Java / Node.Js) is preferable for this post
• Strong understanding of computer science fundamentals (operating systems, network principles, data structures, and algorithms)
• 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.
• Frameworks & Middleware: Proficient with common open-source frameworks and tools such as Kafka, RocketMQ, Dubbo, Zookeeper, and Redis.
• Deep knowledge of MySQL, including schema design, SQL optimization, and database scaling strategies.
• System Experience: Proven, hands-on experience in building, deploying, and maintaining high-concurrency, high-performance, and high-availability systems.

Job Responsibilities ( Junior / 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.

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 across more than 110 countries and regions worldwide. Building on this trust, we continue 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.

Responsibilities

• Understand business processes and work with users to design and develop an end-to-end solution.
• Provide advice and assistance to business users in the effective use of application system and information technology.
• Manage the development of the application system and ensure the project is implemented within budget and according to schedule.
• Design solutions that are of quality and functional to ensure a good user experience.
• Monitors the performance of the application and work with relevant stakeholders to troubleshoot any issues surfaced in the production environment.
• Work closely with technical, solution and information architects to ensure the application developed is robust and align with the Enterprise Architecture.
• Produce technical documentation for application systems.
  

Requirements

• Working experience in application development using the following technologies and programming languages such as Mobile, web, object-oriented programming, SQL, Java, JavaScript, Spring boot, OIDC, and AWS.
• Experience in Project Management and is able to manage user expectation and deliver within project timeline
• Experience/knowledge in Scrum/DevOps concepts.
• Experience/knowledge in the various technologies supporting CI/CD such as GitLab, Confluence, JIRA, SonarQube, etc.
• Experience/Knowledge in Cloud, microservices architecture and container technologies such Docker, Kubernetes, etc.
• To have a keen interesting in IT/ programming / system designs.
• Good understanding of SDLC.

Company Overview

Established in 2010, Vinova is an award-winning development company specializing in mobile, web, and enterprise applications. We serve global clients across IoT, blockchain, fintech, banking, networking, and ecommerce, delivering quality, flexible, and fast solutions through passionate collaboration.

Job Summary

The Frontend Developer sustains the client-side user interface of MIDS, ensuring usability, stability, and operational continuity by resolving UI defects and refining usability based on operational feedback, while preventing unintended scope expansion.

Responsibilities

• Resolve UI-related defects to improve client usability and support operational workflows effectively
• Address usability issues identified through operational feedback to enhance user experience
• Implement minor interface adjustments to maintain smooth ongoing operations
• Ensure frontend changes maintain stability, responsiveness, and consistency with existing workflows
• Prevent regression and scope creep during sustainment changes to safeguard system integrity

Required competencies and certifications

• Proven experience maintaining and sustaining frontend applications in production environments
• Strong understanding of UI stability, responsiveness, and usability in operational systems
• Ability to debug and resolve frontend defects under time-sensitive conditions
• Experience working within strict scope and change control constraints
• Eligibility to work in Singapore and obtain required security clearance for RSAF operational systems access

Preferred competencies and qualifications

• Familiarity with operational or mission-critical systems

Company Overview

Established in 2010, Vinova is an award-winning development company specializing in mobile, web, and enterprise applications. We serve global clients in IoT, blockchain, fintech, banking, networking, and ecommerce, delivering quality, flexible, and fast solutions.

Job Summary

The Full Stack Developer provides end-to-end application sustainment across client and supporting components. This role maintains system stability through defect resolution, performance optimisation, dependency management, and vulnerability remediation while supporting integration and data handling.

Responsibilities

• Resolve defects in frontend and backend application components to maintain system stability
• Perform performance optimisation and resilience improvements to ensure reliable operations
• Update software dependencies and libraries, including remediating application-level vulnerabilities
• Support integration issues related to data handling and local persistence mechanisms
• Address issues caused by operating system, platform, or library updates to maintain compatibility
• Sustain application functionality within approved change scope, avoiding introduction of new features

Required competencies and certifications

• Demonstrate strong experience in full stack application development and sustainment for client and backend systems
• Apply working knowledge of application security, including vulnerability remediation and dependency management
• Support systems operating across cloud and client environments effectively
• Perform performance tuning and fault isolation in operational systems
• Operate within change-controlled, operations-focused environments with high reliability requirements
• Be eligible to work in Singapore and obtain required security clearance for access to RSAF operational systems

Role Summary & Key Responsibilities

We are looking for a seasoned Lead React Native Developer to take full ownership of BRT's mobile engineering function. This is a leadership-plus-hands-on role with three interconnected mandates.

1. New iBMS Mobile Products: Architect and develop new React Native iOS and Android applications for the full suite of iBMS products — from initial discovery and UI/UX collaboration through to App Store and Play Store submission and post-release operations.
2. Legacy App Migration: Lead the systematic conversion of BRT's existing native iOS (Swift/Objective-C) and Android (Kotlin/Java) applications to a unified React Native codebase, preserving feature parity, design fidelity, and platform-specific user experience expectations.
3. Team Enablement &Mentorship: Mentor and upskill a team of native iOS and Android developers, guiding their professional transition to React Native development through structured learning pathways, pair programming, code reviews, and internal knowledge-sharing sessions.

Required Qualifications & Experience

• Minimum 6 years of mobile development experience, with at least 4 years dedicated to React Native in production environments. Minimum 2 years of formal team lead or staff engineer experience with direct mentoring responsibility for mid-senior engineers.
• Demonstrable experience leading a team through a significant technology transition (platform migration, framework adoption, or language re-platforming).
• Expert-level proficiency in TypeScript; strong understanding of JavaScript runtime behaviour, event loop, and async patterns.
• Deep knowledge of React Native internals, proven experience with state management, mastery of React Navigation and complex nested navigation architectures.
• Proficiency with react-native-cli, managed and bare workflows; ability to evaluate trade-offs and choose appropriately per project.
• Solid understanding of native iOS development (Swift, Objective-C, UIKit, SwiftUI) sufficient to author and debug React Native native modules and bridges.
• Solid understanding of native Android development (Kotlin, Java, Jetpack) sufficient to author and debug React Native native modules and bridges.
• Ability to read and navigate existing native codebases for accurate migration planning and risk assessment.
• Demonstrated track record of publishing multiple mobile applications to the Apple App Store and Google Play Store — Include links or names of published apps in your application.
• Experience writing and maintaining Jest unit tests, React Native Testing Library integration tests, and Detox E2E tests.
• Strong written and verbal communication skills in English; ability to produce clear technical documentation, ADRs, and onboarding guides.
• Familiarity with building management, facility management, or smart building domain applications is a plus. Prior experience in a SaaS product company, especially multi-tenant mobile application contexts is also a plus.

Core Competencies

Technical Strengths

• Cross-platform architectural thinking
• Performance-first development mindset
• Strong debugging and root-cause analysis skills
• Security-aware: token storage, certificate pinning, data encryption at rest
• Systematic approach to code quality and testing
• Up-to-date with React Native New Architecture evolution

Leadership & People

• Patient and structured mentoring style
• Leads by example — maintains hands-on coding contributions
• Clear communicator across engineering, product, and design
• Creates psychological safety for junior developers to learn and fail fast
• Drives accountability through enablement, not micromanagement
• Gives and receives constructive feedback effectively

What We Offer

• A high-impact, highly visible role: you will lead BRT's mobile engineering transition to React Native.
• Greenfield opportunity: the majority of iBMS mobile applications are new products — you shape architecture and user experience from day one.
• A meaningful mentorship mission: lead a talented native development team through a well-supported transition, not a rushed rewrite.
• Direct collaboration with cloud architects, IoT engineers, and product leadership — a technically rich, cross-disciplinary environment.

What to Include in Your Application

Please include:

• Links to or names of mobile applications you have personally published on the App Store and/or Google Play Store.
• A brief description (3–5sentences) of a native-to-React Native migration or team transition you have led.
• Your GitHub profile or code portfolio if available.

Responsibilities
You will be responsible for supporting in-house Developer Portal, Dashboard Application & Backstage by working closely with the Engineering and Architecture team to codify architectural best practices to automate key development practices & with run team to troubleshoot & resolve issues including Production Deployment. This Includes microservices framework, API marketplace and low code environments.

• Work as part of a highly talented, cross-functional Central DevOps team to ensure that modern technologies and processes are understood and practiced.
• Stay current with industry trends and development of key DevOps, Runtime, and Operational innovation platforms.

Requirements

• At least 10 years of relevant experience in JAVA/J2EE Technologies.
• Strong experience of developing systems with SpringBoot, JPA, Hibernate and Microservices.
• Must have hands-on experience with javaScript, ReactJS, NodeJs ,HTML and CSS
• Strong experience in Groovy and shell scripting
• Must have database scripting knowledge in MS-SQL & postgreSQL
• Good understanding and hands on experience on scripting.
• Scripting includes Groovy, Ansible, Phyton, Shell, Cron
• MUST have automation thru server-side Unix/Linux shell scripting technical knowledge
• MUST have deep hands-on knowledge and experience in DevOps tool chain support and operability
• Has deep technical knowledge on debug, troubleshooting Jenkins groovy scripts, pipelines thru Jenkins, Bitbucket, SonarQube, etc
• Able to code, script, automate full DevOps automation capabilities to enhance and elevate automation from manual human tasks. Always able to find ways to automate, develop scripts, innovate new ideas to reduce human work and repetitive tasks.

We are seeking a skilled and passionate Java Developer to join our dynamic technology team. The successful candidate will be responsible for designing, developing, and maintaining high-quality Java applications. You will collaborate with cross-functional teams to deliver scalable and robust solutions that meet business requirements.

Key Responsibilities

·       Design, implement, and maintain Java-based applications according to project requirements.

·       Collaborate with business analysts, product managers, and other developers to understand end-user requirements and deliver technical solutions.

·       Write clean, efficient, and well-documented code following industry best practices.

·       Troubleshoot, debug, and resolve software defects and issues in a timely manner.

·       Participate in code reviews to ensure code quality and knowledge sharing among team members.

·       Contribute to the continuous improvement of development processes and methodologies.

·       Keep up to date with the latest Java technologies and industry trends.

Required Skills and Qualifications

·       Bachelor’s degree in Computer Science, Information Technology, or a related field.

·       Proven experience as a Java Developer or similar role.

·       Strong proficiency in Java SE/EE, Spring Framework, and related technologies.

·       Familiarity with RESTful APIs, web services, and microservices architecture.

·       Experience with databases such as MySQL, PostgreSQL, or Oracle.

·       Knowledge of version control systems (e.g.,Git).

·       Solid understanding of object-oriented programming principles.

·       Excellent problem-solving and analytical skills.

·       Strong communication and teamwork abilities.

Preferred Qualifications

·       Experience with cloud platforms (e.g., AWS, Azure, Google Cloud).

·       Proficient in Python programming in application development environments.

·       Familiarity with front-end technologies (e.g., JavaScript, Angular, React) is a plus.

·       Understanding of Agile/Scrum development methodologies.

·       Relevant Java certifications are advantageous.

Responsibilities:

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

Qualifications:

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

Role Overview:

We’re looking for an Oracle PL/SQL Developer with strong experience in banking payment systems, UNIX scripting, and scheduling tools.

You’ll work on maintaining, enhancing, and supporting mission-critical applications for SWIFT, MEPS+, and risk/payment platforms.

Key Responsibilities:  Develop, optimize, and maintain SQL, PL/SQL procedures, functions, packages, and triggers for Oracle databases 9i/10g/11g/12cWrite and maintain UNIX/AIX shell scripts for batch jobs, data loads, and system automation

Support and monitor batch schedules using Control-M scheduler

Troubleshoot issues in payment systems: SWIFT Alliance [AWP, SAA, SAG], SWIFT Online Operation Manager, and MEPS+

Work with risk and compliance tools like Risk Authority (RAY) Moody’s and BAE Systems DETICA

Manage code/version control using ClearCase, ClearQuest, and Aldon

Perform data analysis and debugging using SQL_Plus, SQL Developer, TOAD, and ORMSCollaborate with business, QA, and production support teams for deployments and incident resolution

Required Skills:

• Languages: SQL, PL/SQL, Unix Shell Scripting
• Databases/Tools: Oracle 9i/10g/11g/12c, ORMS, SQL_Plus, SQL Developer, TOAD, Control-M scheduler, ClearCase, ClearQuest, Aldon
• Risk/Payment Systems: Risk Authority (RAY) Moody’s, BAE Systems DETICA, MEPS+, SWIFT Alliance [AWP, SAA, SAG], SWIFT Online Operation Manager
• Operating Systems: Windows, UNIX AIXGood to Have:  Experience in banking domain, payment processing, or treasury systems
• Mandatory: Experience with SWIFT Alliance, MEPS+, and regulatory compliance systems.

1. Strong Salesforce experience with exposure to Sales Cloud, Service Cloud

2. Strong in creating Lightning components (Aura knowledge is a must, LWC will be additional advantage)

3. Srong in Apex, Visualforce and LWC

4. Apex Enterprise Patterns Knowledge/Experience

5. Expertise in Configuration elements including Workflows, Validation rules, Process Builder

6. Well versed in any modern IDE (like VS code) and familiar with Git/Bit Bucket

7. Good to have PSS knowledge

What You Will Do

• Write Code: Build and update backend systems using Java and Spring Boot.

• Fix Problems: Find and fix bugs to keep services running smoothly.

• Teamwork: Work with other developers and designers in an Agile team.

• Keep Data Safe: Follow security rules to make sure citizen information is protected.

• Connect Systems: Create APIs to help different government apps talk to each other.

Skills Needed

• Java: Good experience with Java (Version 11 or higher).

• Spring Boot: Ability to build web applications using the Spring framework.

• Databases: Experience with SQL (like MySQL or PostgreSQL).

• Basic Tools: Familiar with Git (for code saving) and Jenkins (for deployment).

• Testing: Knowing how to write simple tests for your own code.

Job Description & Requirements

• Design, develop, test, and maintain applications using Node.js and Python
• Build and manage RESTful APIs and microservices architecture
• Work extensively in Linux/Unix environments for development and deployment
• Write efficient, reusable, and scalable code following best practices
• Collaborate with cross-functional teams (Product, QA, DevOps)
• Troubleshoot, debug, and optimize application performance
• Manage application deployments, monitoring, and log analysis on Linux servers
• Work with databases (SQL/NoSQL) to design efficient schemas
• Ensure application security, reliability, and scalability
• Bachelor’s degree in Computer Science or related field
• 4+ years of experience in backend development
• Strong expertise in:Node.js (Express.js / NestJS)Python (Django / Flask / FastAPI)
• Hands-on experience with Linux/Unix systems

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

Embedded Linux & IoT Application Developer

Job Summary

We are seeking a skilled Embedded Linux & IoT Application Developer to design, develop, and maintain intelligent automation and connected device solutions. The ideal candidate will have strong experience in Embedded Linux, IoT protocols, middleware development, device integration, and cloud connectivity. You will play a key role in building scalable systems that connect sensors, controllers, mobile applications, and cloud platforms for smart building and automation environments.

Key Responsibilities

• Develop and maintain Embedded Linux and IoT applications using Python and C.
• Design and implement communication solutions using MQTT, Modbus, RS485, and REST APIs.
• Integrate various hardware devices including sensors, controllers, RFID readers, Android terminals, and edge computing devices.
• Develop middleware services enabling real-time communication between embedded devices, backend servers, cloud platforms, and mobile applications.
• Build and support automation systems for smart buildings, room automation, access control, lift integration, and related IoT applications.
• Design secure and reliable device-to-cloud connectivity architectures.
• Troubleshoot, debug, and optimize embedded software and Linux-based systems to ensure high performance and reliability.
• Deploy and manage applications on Linux platforms using Docker containers and systemd services.
• Monitor system performance, identify bottlenecks, and implement optimization strategies.
• Collaborate with hardware engineers, mobile developers, cloud teams, and project stakeholders to deliver integrated solutions.
• Prepare technical documentation, deployment procedures, and maintenance guides.
• Participate in system testing, commissioning, and production deployments.

Required Qualifications

• Bachelor's degree in Computer Engineering, Electronics Engineering, Computer Science, or a related field.
• Proven experience in Embedded Linux application development.
• Strong programming skills in Python and C.
• Hands-on experience with MQTT, Modbus, RS485, and REST API integration.
• Experience integrating IoT devices, sensors, controllers, RFID systems, and Android-based terminals.
• Solid understanding of Linux operating systems, networking, and system administration.
• Experience with Docker containerization and system service management.
• Strong debugging, troubleshooting, and performance optimization skills.
• Familiarity with cloud-based IoT platforms and device management solutions.
• Knowledge of TCP/IP networking and communication protocols.