Devops - Senior Engineer

Job Description

Key Responsibilities
•              Build and maintain CI/CD pipelines using GitLab CI for automated build, test, and deployment workflows.
•              Containerize applications using Docker, optimize Dockerfiles, and manage image lifecycle (tagging, scanning, promotion).
•              Deploy and operate applications on Kubernetes, including rollout strategies, scaling, self-healing, and resource optimization.
•              Create, maintain, and version Helm charts for consistent and repeatable deployments across environments.
•              Manage secrets and sensitive configuration using HashiCorp Vault (authentication methods, policies, secret engines, rotation workflows).
•              Troubleshoot and resolve issues across the stack: pipeline failures, container runtime issues, cluster scheduling, and networking connectivity.
•              Collaborate with developers to improve deployment reliability, observability, and release velocity.
•              Apply infrastructure and platform best practices including least-privilege access, auditability, and secure configuration.
•              Perform basic networking diagnostics (DNS, TLS/certs, routing basics, firewalls/security groups concepts, port troubleshooting).
•              Support Linux-based systems administration tasks: process/service management, permissions, logs, package management, shell scripting.

Required Skills & Experience
•              Docker: building images, multi-stage builds, registries, best practices for size/security.
•              Kubernetes: core objects (Pods, Deployments, Services, ConfigMaps, Secrets), troubleshooting, namespaces, resource requests/limits.
•              Helm: chart authoring, templating, values management, environment-specific overrides.
•              GitLab CI: pipelines, jobs/stages, variables, artifacts, rules/only/except, runners, caching.
•              Vault: secrets management, policies, authentication integration, secure secret retrieval in CI/CD or workloads.
•              Linux: strong command-line usage, system/service troubleshooting, logs, permissions, scripting basics.
•              Basic Networking: TCP/IP basics, DNS, HTTP/HTTPS, TLS/cert troubleshooting, connectivity debugging tools (curl, nslookup/dig, netstat/ss).

Nice-to-Have (Preferred)
•              Observability tooling (Prometheus, Grafana, ELK/EFK, OpenTelemetry).
•              IaC tools (Terraform / Ansible).

Sample Tooling / Tech Stack
•              CI/CD: GitLab CI
•              Containers: Docker
•              Orchestration: Kubernetes
•              Packaging: Helm
•              Secrets: HashiCorp Vault
•              OS: Linux
•              Networking: DNS/TLS/HTTP troubleshooting

Mandatory Competencies