Low Code Engineer (Outsystems and Oracle Database)

NTT SINGAPORE PTE. LTD.; Singapore; On-site; SGD 90,000 - 150,000; Full time

Job summary

NTT SINGAPORE PTE. LTD. is seeking an experienced consultant to design, develop, and support OutSystems-based applications in a Singapore government context.

You will work on backend logic, frontend features with Sitefinity, and Oracle Database components, while ensuring security and smooth migrations to modern architectures. Ideal candidates have hands-on OutSystems expertise, at least one government project, and experience handling production incidents, deployments, and performance issues in

Qualifications

• At least 3 years of hands-on application development experience using OutSystems.
• Completed at least one Singapore Government project involving an OutSystems-based production system.
• Experience supporting at least one production application after go-live, including incident investigation, defect resolution or application enhancement.
• Hands-on experience working with Oracle Database in an application-development or production support environment.
• Experience in an Enterprise environment with multiple technology areas (database, infrastructure, integration, security, identity).
• Senior Consultant: at least 7 years of hands-on development, including 3+ years with OutSystems.
• Senior Consultant: at least 2 years leading technical delivery and/or defining solution architecture.

Responsibilities

• Design, develop, test enhancements and defect fixes for applications built with OutSystems.
• Develop and maintain backend business logic, workflows, and integrations using OutSystems, Oracle Policy Automation when applicable.
• Develop and maintain frontend features using OutSystems and Sitefinity CMS.
• Develop Oracle Database components: schemas, queries, stored procedures and data-integrity controls.
• Investigate and resolve application defects, production incidents and performance issues.
• Support deployments, releases, rollback and post-deployment verification.
• Perform root-cause analysis and implement permanent corrective actions for recurring issues.
• Support components hosted on AWS (S3, Lambda, EC2, ELB, CodeDeploy, KMS).
• Develop and support security and identity integrations (ADFS, SAML, etc.).
• Assist migration planning and modernisation while maintaining production continuity.
• Produce technical documentation: designs, diagrams, interfaces, deployment procedures and runbooks.
• Senior Consultant: lead end-to-end technical delivery across streams and guide the team.

Skills

OutSystems

AWS

Oracle

Education

Minimum 3 years hands-on application development

Tools

OutSystems

Oracle Database

AWS Lambda

AWS EC2

Job description

Key Responsibilities

Application Development and Maintenance

• Design, develop, test enhancements and defect fixes for applications developed using OutSystems.
• Develop and maintain backend business logic, workflows, integrations and rules using OutSystems and, where applicable, Oracle Policy Automation.
• Develop and maintain frontend functionality using OutSystems and Sitefinity CMS.
• Develop and maintain Oracle Database components, including schemas, SQL queries, stored procedures and data-integrity controls.

Production Support

• Investigate and resolve application defects, production incidents, integration failures and performance issues.
• Support application deployments, release activities, rollback and post-deployment verification.
• Perform root-cause analysis and implement permanent corrective actions for recurring technical issues.

Infrastructure, Security and Integration

• Support application components hosted on AWS services including S3, Lambda, EC2, ELB, CodeDeploy and KMS.
• Support application environments running on Amazon Linux 2023 and Windows Server 2016/2019.
• Develop and support security and identity integrations involving ADFS, WOG AD, SAML, CAM, Trend Micro FAM and API Gateway.

Migration and Modernisation

• Assess dependencies between the existing application and target architecture.
• Support migration planning, including dependency identification, workstream sequencing, technical risk assessment, testing and cutover activities.
• Support progressive transition from the existing technology stack towards the target modern architecture while maintaining continuity of the production service.

Documentation

• Produce and maintain technical documentation including solution designs, architecture diagrams, interface specifications, deployment procedures, operational runbooks and migration plans.

Additional Responsibilities for Senior Consultant:

• Lead end-to-end technical delivery across application enhancement, production support and modernisation workstreams.
• Provide technical guidance on solution design, engineering standards, code quality and migration approaches, and guide the development team in implementation.
• Take ownership of critical technical matters, including complex production issues, technical risks, dependencies, migration and cutover activities.

Requirements

Mandatory requirements for Consultant and Senior Consultant

• At least 3 years of hands-on application development experience using OutSystems
• Completed at least one Singapore Government project involving an OutSystems-based production system
• Experience supporting at least one production application after go-live, including incident investigation, defect resolution or application enhancement
• Hands-on experience working with Oracle Database in an application-development or production support environment
• Experience working with an Enterprise technology environment involving application development and one or more supporting technology areas, such as database, infrastructure, integration, security or identity components

Additional Mandatory requirements for Senior Consultant

• At least 7 years of hands-on application development experience, including a minimum of 3 years using OutSystems
• At least 2 years of experience leading technical delivery and/or defining solution architecture
• Led the technical delivery of at least one production application implementation, major system enhancement or migration/modernisation initiative