Senior Low Code Engineer

User Experience Researchers Pte Ltd (Singapore); Singapore; On-site; SGD 90,000 - 150,000; Full time

Job summary

User Experience Researchers Pte Ltd (Singapore) is seeking a Senior Low Code Engineer to maintain, enhance and modernize an existing digital service. You will lead technical delivery, provide direction for migration and governance, and work across OutSystems, Sitefinity CMS, Oracle DB and AWS infrastructure to ensure a stable, scalable solution.

You will perform hands-on work across the application lifecycle, including development, production support, deployment, and documentation, while

Qualifications

• At least 7 years of hands-on application development experience, including a minimum of 3 years using OutSystems.
• Experience supporting production applications post go-live with incident investigation or enhancements.
• Hands-on experience with Oracle Database in development or production environments.

Responsibilities

• Design, develop, test enhancements and fixes for OutSystems applications.
• Develop backend logic, workflows and rules using OutSystems and Oracle Policy Automation where applicable.
• Develop frontend functionality using OutSystems and Sitefinity CMS.

Skills

Low Code Application Development

OutSystems

Database

Oracle Database

Tools

Sitefinity CMS

AWS

CI/CD (GitLab)

CodePipeline

Job description

The Low Code Engineer will be responsible for the maintenance, enhancement and stabilisation of an existing digital service, while supporting its transition towards a modern technology architecture. The engineer will perform hands‑on technical work across the application lifecycle, including application development, production support, troubleshooting, deployment, technical documentation and migration activities. The application environment includes OutSystems, Oracle Policy Automation (OPA), Sitefinity CMS, Oracle Database and AWS infrastructure, together with associated operating-system, security and identity components. The Senior Consultant will additionally lead and manage technical delivery for the engineers assigned, and provide technical direction for solutioning, migration and modernisation activities.

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 enterprise directory services, SAML, access management platforms, endpoint security tools 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.
• 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

• Completed at least one large‑scale enterprise or public sector project involving an OutSystems‑based production system with a total project or contract value of at least S$5 million.
• 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 in an enterprise technology environment involving application development and one or more supporting technology areas, such as database, infrastructure, integration, security or identity components.
• 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.

Technical Skills: Must Have

• Low Code Application Development
• OutSystems
• Database
• Oracle Database

Good to Have

Experience in the following

• Sitefinity CMS
• AWS services, including S3, Lambda, EC2, ELB, CodeDeploy and KMS
• Amazon Linux 2023 and Windows Server 2016/2019
• Enterprise directory services, SAML, access management platforms, endpoint security tools and API Gateway
• CI/CD tooling such as GitLab or CodePipeline
• Infrastructure and container security practices
• Observability and monitoring tools (e.g. Dynatrace, Datadog, CloudWatch)
• Familiarity with modern cloud‑native stacks (ReactJS, Golang, Kubernetes) as a complement to legacy expertise

Soft Skills

• Strong problem‑solving and debugging skills in production environments.
• Clear communication with both technical and non‑technical stakeholders.
• Ability to work independently and take ownership of complex, ambiguous legacy systems.
• For Senior Consultant: Demonstrated technical leadership and team management skills, with the ability to drive technical decisions across teams.