- 77 ROBINSON ROAD Central Region (Singapore) Singapore

Working Location
Job Description
Responsibilities
Job Summary
We are seeking a highly experienced Senior Technical Lead with 15+ years of hands-on experience in designing, developing, and supporting enterprise-scale applications. The ideal candidate will have deep expertise across Java, Spring Boot, React.js, cloud platforms (AWS & Azure), databases, integration middleware, DevOps, and legacy-to-modernization initiatives.
This role requires strong architectural thinking, hands-on development capability, leadership in complex delivery environments, and close collaboration with business stakeholders to deliver scalable, secure, and high-performing systems.
Key Responsibilities
Architecture & Technical Leadership
· Design and define end-to-end system architecture for large-scale enterprise applications, including monolithic, microservices, and hybrid architectures
· Act as Technical Lead / Architect providing guidance on design patterns, coding standards, and best practices
· Review and approve technical designs, APIs, database models, and deployment architectures
· Mentor development teams and conduct code reviews to ensure quality, security, and performance
· Drive legacy application modernization, cloud migration, and technology transformation initiatives
Backend Development & Integration
· Design and develop RESTful and SOAP-based services using Java, Spring, Spring Boot, Spring Security, Spring Batch, Hibernate/JPA
· Develop and maintain enterprise integrations using IBM MQ, messaging systems, and batch processing (Control‑M)
· Implement authentication and authorization using OAuth2, JWT, Spring Security, WS-Security
· Develop reusable Java libraries, frameworks, and utilities
· Perform root cause analysis and resolve complex production issues
Frontend & Full-Stack Development
· Design and develop modern web applications using React.js, JavaScript, jQuery
· Ensure responsive, accessible, and high‑performance UI designs
· Integrate frontend applications with backend APIs securely and efficiently
Cloud, DevOps & Deployment
· Design and deploy applications on AWS and Azure
· Hands-on experience with EC2, CloudWatch, CI/CD pipelines, Jenkins, Bamboo, Bitbucket
· Deploy and manage applications on WebSphere, JBoss, Tomcat, IIS, OpenShift
· Implement CI/CD automation, build pipelines, and release management strategies
· Monitor applications using CloudWatch, ELK Stack, logs, and performance metrics
· Optimize cloud resources for performance, scalability, and cost efficiency
Database & Data Management
· Strong experience with Oracle, PostgreSQL, IBM Informix, MySQL
· Perform database migrations (Oracle to PostgreSQL), schema evolution, and tuning
· Design schemas, write complex SQL/PL‑SQL queries, and optimize performance
· Implement data access layers using Hibernate/JPA, Spring JDBC
Reporting & Batch Processing
· Design and develop enterprise reports using Crystal Reports, Jasper Reports, Cognos
· Develop batch jobs using Spring Batch and integrate with Control‑M
· Ensure high‑volume data processing with reliability, logging, and recovery mechanisms
Testing, Quality & Security
· Write and review unit, integration, and end‑to‑end tests
· Perform load and performance testing using Gatling, Cucumber, Karate
· Ensure applications comply with OWASP security standards
· Conduct regular security audits and vulnerability assessments
Agile Delivery & Stakeholder Management
· Work closely with business users, product owners, QA, DevOps, and IT teams
· Participate in Agile ceremonies: sprint planning, stand-ups, reviews, retrospectives
· Translate business requirements into technical solutions
· Provide production support, incident management, and continuous improvement
Required Technical Skills
Programming & Frameworks
· Java, C#, Python
· Spring, Spring Boot, Spring Security, Spring Batch, Hibernate/JPA
· React.js, JavaScript, jQuery, Struts
· Django (Python)
Databases
· Oracle, PostgreSQL, IBM Informix, MySQL
Cloud & DevOps
· AWS, Azure
· Jenkins, Bamboo, Bitbucket, Git
· CI/CD, OpenShift, Docker (exposure preferred)
Middleware & Integration
· IBM MQ, SOAP/REST Web Services, Control‑M
Servers & Platforms
· WebSphere, JBoss, Tomcat, IIS
· Linux (Red Hat, Solaris), Windows
Reporting & Tools
· Crystal Reports, Jasper Reports, Cognos
· ELK Stack, CloudWatch, Jira, Confluence
Experience & Qualifications
· 15+ years of overall IT experience in enterprise application development
· Proven experience as Technical Lead / Architect on complex systems
· Strong background in cloud-native and enterprise integration architectures
· Excellent problem‑solving, communication, and stakeholder management skills
· Master’s or bachelor’s degree in computer science or related field
Preferred / Added Advantage
· Experience with government or large public-sector systems
· Experience handling mission‑critical production systems
· Strong documentation and architectural design skills
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