Senior DevOps Engineer

Description :

We are seeking an experienced Senior DevOps Engineer with deep expertise in Jenkins, Docker, Ansible, and Kubernetes to architect and maintain secure, scalable infrastructure and CI/CD pipelines. This role emphasises security-first DevOps practices, on-premises Kubernetes operations, and integration with data engineering workflows.

Responsibilities :

- Build greenfield pipelines and enhance/stabilise existing pipeline infrastructure.

- Diagnose and resolve build, test, and deployment failures across multi-service environments.

- Integrate security gates, compliance checks, and automated quality controls at every pipeline stage.

- Enforce code quality and security scanning standards across all services.

- Maintain organisational coding standards, vulnerability thresholds, and remediation workflows.

- Automate quality gates as integral components of CI/CD processes.

- Implement multi-stage builds, layer optimisation, and minimal base images.

- Conduct image vulnerability scanning and enforce compliance policies.

- Apply containerization best practices for security and performance.

- Create modular, reusable, and secure playbooks for configuration management.

- Automate environment provisioning and application lifecycle operations.

- Maintain infrastructure-as-code standards and version control.

- Cluster provisioning, version upgrades, node maintenance, and capacity planning.

- Configure and manage networking (CNI), persistent storage solutions, and ingress controllers.

- Troubleshoot workload performance, resource constraints, and reliability issues.

- Design and manage RBAC policies, service account isolation, and least-privilege access models.

- Apply Pod Security Standards, network policies, secrets encryption, and certificate lifecycle management.

- Conduct cluster hardening, security audits, monitoring, and policy governance.

- Guide secure deployment patterns and containerised application best practices.

- Establish workload governance frameworks for distributed systems.

- Drive adoption of security-first mindsets across engineering teams.

- Support deployment and operational tuning of Spark ETL/ETA jobs.

- Understand cluster integration, job orchestration, and performance optimisation.

- Debug and troubleshoot Spark workflow issues in production environments.

Requirements :

- Jenkins (Expert) : Advanced pipeline development, DSL scripting, security integration, troubleshooting.

- Docker (Expert) : Secure multi-stage builds, vulnerability management, optimisation for Java/Scala/Python.

- Ansible (Expert) : Complex playbook development, configuration management, automation at scale.

- Kubernetes (Expert - Primary Focus) : On-premises cluster operations, security hardening, networking, storage management.

- SonarQube/Code Quality (Strong) : Integration, quality gate enforcement, threshold management.

- DevSecOps (Strong): Security scanning, compliance automation, vulnerability remediation, workload governance.

- Spark ETL/ETA (Moderate) : Understanding of distributed data processing, job configuration, and runtime behavior.

Core Competencies :

- Deep understanding of DevSecOps principles and security-first automation.

- Strong troubleshooting and problem-solving abilities across complex distributed systems.

- Experience with infrastructure-as-code and GitOps methodologies.

- Knowledge of compliance frameworks and security standards.

- Ability to mentor teams and drive best practice adoption.

Qualifications :

- 8 - 10 years of hands-on DevOps.

- Proven track record with Jenkins, Docker, Kubernetes, and Ansible in production environments.

- Experience managing on-premises Kubernetes clusters (bare-metal preferred).

- Strong background in security hardening and compliance automation.

- Familiarity with data engineering platforms and big data technologies.

- Excellent communication and collaboration skills.