DevSecOps Engineer

ELLIOTT MOSS CONSULTING PTE. LTD.; Singapore; On-site; SGD 80,000 - 100,000; Full time

Job summary

A consulting firm in Singapore is looking for an Application Operations Engineer to manage enterprise applications, ensuring operational health and security in production. Responsibilities include collaborating with architecture teams, managing application platforms, and improving DevSecOps practices. The ideal candidate should have a STEM background and hands-on experience with RHEL and Windows environments.

Qualifications

• Hands-on administration of applications in RHEL and Windows environments.
• Experience in maintaining enterprise-scale web architectures and microservices.
• Familiarity with Agile practices preferred.

Responsibilities

• Own operational health for assigned applications.
• Manage application platforms in production.
• Implement and improve DevSecOps tooling and automation.

Skills

System administration on RHEL

System administration on Windows

Enterprise web architecture maintenance

Education

STEM background (computing, engineering, information systems)

Tools

GitHub

GitLab

Bamboo

SonarQube

Job description

Job Description

We’re looking for an Application Operations Engineer to take ownership of one or two enterprise applications, covering day-to-day operations, patching, reliability, and production support. You’ll collaborate with build/architecture teams, strengthen our DevSecOps practices, and help maintain secure, scalable online services.

Key Responsibilities

• Own operational health for assigned applications (availability, patching, monitoring, incident response, RCA).
• Set up and manage application platforms in production (e.g., WebSphere in HA), including post-setup patching and tuning.
• Participate in architecture/design sessions to define integration points (e.g., Web Services, MQ, SFTP) and operational requirements.
• Provision and manage containerized services; apply image/repository lifecycle concepts and deploy container-centric workloads.
• Maintain enterprise web and microservices architectures (capacity, scaling, resiliency, observability).
• Implement and improve DevSecOps tooling and automation across CI/CD and security controls.
• Define, document, and improve operational processes (runbooks, SLAs/SLOs, change/incident/problem management).
• Perform OS-level and application-level patching, operational housekeeping, archival, backup, and recovery.
• Apply hardening, scanning, and security posture best practices in line with governance requirements.

Must-Have Skills & Experience

• STEM background (e.g., computing, engineering, information systems) or equivalent practical experience.
• Hands-on administration and setup of applications on RHEL and Windows environments.
• Experience maintaining enterprise-scale online web architectures and microservices (production operations, HA/DR, patching).

Good-to-Have (Optional)

• Familiarity with Agile practices and tooling to support the delivery lifecycle.
• Understanding of end-to-end web application flow (SSO, web server, app server, database, and supporting components).
• DevSecOps tooling background (e.g., GitHub/GitLab, Bamboo, SonarQube, security scanning) with ability to integrate toolchains.
• Container ecosystem know-how (images, registries, deployment) and command-line/scripting skills (Shell, PowerShell).
• Experience with middleware/integration (MQ, SFTP) and application servers (e.g., WebSphere in HA).