Professional Journey
My career path and the impact I've made at each role.
DevOps Engineer
VIVAVIS AG
Koblenz, Germany
Sole owner of the entire Kubernetes platform — designed, built, and operated without a dedicated DevOps team. Responsible for architecture decisions and security hardening across all environments.
Built a fully reproducible Jenkins cluster with 100% JCasC — Controller & Agents, Organization Folders, Credentials/SCM, and a Shared Library for Build/Test/Deploy; complete bootstrap from versioned code.
Designed and operated a multi-cluster K3s Kubernetes platform on Linux VMs (Dev, QA, Staging, Production) with FluxCD GitOps and HelmRelease per cluster; fully declarative bootstrap via pinned manifests.
Engineered NGINX Ingress per cluster via Helm Chart with SSL-Passthrough and PROXY protocol; MetalLB VIPs and wildcard subdomains for Dev/QA.
Designed end-to-end TLS concept: cert-manager (ACME HTTP-01) for Staging/Production; wildcard default certificates for Dev/QA; certificate mounts under /tls with Custom CA installation.
Established SOPS (age) secret management (Git via SSH, OCI-Helm-Auth); zero plaintext secrets in repos; reproducible, auditable deployments.
Standardized persistence with Longhorn; provisioned PVs for stateful services including PostgreSQL and Keycloak.
Deployed Keycloak with Bitnami Chart (image overrides); hardened behind Ingress with full TLS.
Managed GitLab server administration including updates, migrations, and Linux server management for infrastructure transitions.
Migrated the SonarQube cluster to a new environment (planning, execution, validation).
Created and maintained custom Helm Charts: Artemis, umbrella-postgres, pg-admin, Keycloak, dashboard, NGINX, monitoring.
Software Engineer
Nodapo Software GmbH
Koblenz, Germany
Full-stack development with a focus on backend APIs, CI/CD optimization, and cloud-native services on AWS.
Developed APIs in Spring Boot and Quarkus; migrated Symfony PHP endpoints to Spring Boot 3.
Modeled JPA/Hibernate entities and implemented JPQL; wrote comprehensive unit/integration tests with JUnit and Mockito.
Optimized GitLab CI/CD pipelines and containerized services; orchestrated Kubernetes deployments.
Leveraged AWS services (SNS, SQS, RDS, ECR) with CDK; contributed to Angular and React (Gatsby/Contentful) frontends.
Software Engineer
Vertika Limited
Karachi, Pakistan
Frontend development for digital signage systems with rapid migration projects and automation.
Built frontend for Digital Signage with Blazor; integrated with Windows Forms applications.
Created PowerShell/psake automations; optimized SQL stored procedures for performance.
Led rapid migration away from Adobe Flash; executed multi-site rollout via CloneZilla.