DevOps Engineer (DevLabs by AngelHack)

STACKTRIBE PTE. LTD.; Singapore; On-site; SGD 90,000 - 130,000; Full time

Job summary

STACKTRIBE PTE. LTD. in Singapore is seeking an experienced DevOps Engineer to design, build, and maintain scalable cloud infrastructure and CI/CD pipelines with a strong AWS and Red Hat OpenShift focus.

A major emphasis is on DevSecOps, embedding security across the development and deployment lifecycle. The role covers IaC, container orchestration, CI/CD, and security governance across AWS and OpenShift environments, with collaboration across Dev, Ops, and Security teams to ensure robust,

Qualifications

• 3–5 years of DevOps/DevSecOps/Platform Engineering experience.
• Hands-on with AWS services (EC2, S3, VPC, IAM, Lambda, RDS, CloudFormation, Terraform).
• Practical OpenShift experience (deployment, clusters, RBAC).
• Solid containerization knowledge (Docker, Kubernetes).
• Experience with CI/CD tools (Jenkins, GitLab CI, GitHub Actions, Tekton).
• Security scanning: SAST/DAST/SCA (SonarQube, Snyk, Checkmarx, OWASP ZAP).
• Container/image scanning tools (Trivy, Clair, Aqua).
• Secrets management (Vault, AWS Secrets Manager).
• Scripting in Bash, Python, or Go.
• Configuration management (Ansible, Chef, Puppet).
• Networking fundamentals (DNS, load balancers, firewalls, VPNs).
• Monitoring stacks (Prometheus, Grafana, ELK/EFK).

Responsibilities

• Design, implement, and maintain IaC for AWS cloud environments.
• Deploy, manage, and optimize apps on OpenShift/Kubernetes clusters.
• Build and maintain CI/CD pipelines and automation.
• Embed security checks across the SDLC (SAST/DAST/SCA).
• Manage secrets with Vault or AWS Secrets Manager; enforce least privilege.
• Monitor, log, and ensure reliability; support incident response.

Skills

AWS

OpenShift

Docker

Kubernetes

Jenkins

GitLab CI

GitHub Actions

Tekton

Security testing

Trivy

Clair

Aqua

Vault

AWS Secrets Manager

Terraform

CloudFormation

Ansible

Prometheus

Grafana

ELK

Networking

Bash

Python

Go

Tools

Terraform

CloudFormation

Jenkins

GitLab CI

GitHub Actions

Tekton

Trivy

Clair

Aqua

HashiCorp Vault

Job description

About the Role

We are looking for an experienced DevOps Engineer to join our infrastructure/platform team. You will design, build, and maintain scalable cloud infrastructure and CI/CD pipelines, with a strong focus on AWS and Red Hat OpenShift environments. This role has a strong DevSecOps component - you will be expected to embed security practices throughout the development and deployment lifecycle, not treat it as an afterthought.

Key Responsibilities

Infrastructure & Platform

• Design, implement, and maintain infrastructure-as-code (IaC) for AWS cloud environments
• Deploy, manage, and optimize containerized applications on Red Hat OpenShift (OKD/OCP)
• Manage Kubernetes/OpenShift clusters, including scaling, upgrades, and patching
• Troubleshoot and resolve infrastructure, networking, and deployment issues

CI/CD & Automation

• Build and maintain CI/CD pipelines to support development and release cycles
• Automate repetitive operational tasks to improve deployment speed and reliability
• Implement pipeline security gates (e.g., automated approval blocks on failed scans)

DevSecOps / Security Integration

• Embed security checks across the SDLC ("shift left") - including static application security testing (SAST), dynamic testing (DAST), and software composition analysis (SCA)
• Perform container/image vulnerability scanning before deployment to OpenShift (e.g., Trivy, Clair, Red Hat ACS/StackRox)
• Manage secrets securely using tools like HashiCorp Vault, AWS Secrets Manager, or OpenShift Secrets
• Implement policy-as-code and compliance-as-code (e.g., Open Policy Agent, OPA Gatekeeper) to enforce security and governance guardrails
• Apply IAM least-privilege principles across AWS and OpenShift RBAC configurations
• Monitor for security vulnerabilities, misconfigurations, and compliance drift in infrastructure and pipelines
• Support security audits, vulnerability remediation, and incident response processes
• Collaborate with security teams to align with organizational compliance frameworks

Monitoring & Reliability

• Implement and maintain monitoring, logging, and alerting solutions (e.g., Prometheus, Grafana, ELK/EFK)
• Support disaster recovery, backup strategies, and incident response procedures
• Document infrastructure architecture, security controls, runbooks, and operational procedures

Requirements

• Singapore Citizen , based in Singapore
• 3-5 years of relevant DevOps/DevSecOps/Platform Engineering experience
• Hands-on experience with AWS (EC2, S3, VPC, IAM, Lambda, RDS, CloudFormation/Terraform, etc.)
• Practical experience with Red Hat OpenShift (deployment, cluster management, operators, RBAC)
• Solid understanding of containerization technologies (Docker, Kubernetes)
• Experience with CI/CD tools (e.g., Jenkins, GitLab CI, GitHub Actions, Tekton)
• Working knowledge of security scanning tools (SAST/DAST/SCA - e.g., SonarQube, Snyk, Checkmarx, OWASP ZAP)
• Experience with container/image scanning tools (Trivy, Clair, Aqua, or Red Hat ACS)
• Familiarity with secrets management tools (Vault, AWS Secrets Manager)
• Proficiency in scripting languages (Bash, Python, or Go)
• Familiarity with configuration management tools (Ansible, Chef, or Puppet)
• Understanding of networking fundamentals (DNS, load balancing, firewalls, VPNs)
• Experience with monitoring/logging tools (Prometheus, Grafana, ELK/EFK stack)
• Strong problem-solving skills and ability to work independently under pressure
• Good communication skills and ability to collaborate across Dev, Ops, and Security teams

Good to Have

• AWS Certification (Solutions Architect, DevOps Engineer, or SysOps Administrator)
• Red Hat Certified Specialist in OpenShift Administration (or equivalent)
• Security certifications (e.g., CompTIA Security+, Certified Kubernetes Security Specialist - CKS)
• Experience with GitOps tools (ArgoCD, Flux)
• Exposure to compliance frameworks relevant to your industry (e.g., MAS TRM, ISO 27001, PCI-DSS)
• Experience working in Agile/Scrum environments