Khaleel
Ahmad
I keep production running at 3am. CKA-certified Data and DevOps engineer with 4+ years of Experience in Kubernetes, IaC, Cloud, and CI/CD pipelines at scale.
I build systems that scale
I'm a DevOps and Data Engineer based in Berlin with a track record of building cloud infrastructure that handles real traffic, not toy deployments. At Ericsson I ran AWS EKS clusters serving 74 million subscribers for Zain Iraq's 4G/5G network and cut environment provisioning from two days to twenty minutes using Terraform.
On the data side, I've built Airflow pipelines processing 12,000+ XML files daily, rewired sequential XML parsing into multiprocessing to unlock a 90% throughput gain, and delivered internal KPI tools still used in production today. I like infrastructure that's boring in the best way: automated, observable, and boring to operate.
Currently pursuing an M.S. in Artificial Intelligence at BTU Cottbus-Senftenberg, deepening my background in ML and distributed systems. Actively targeting DevOps, Data Engineering, and Linux Sysadmin roles in Germany.
Cloud-Native Infrastructure
AWS EKS, Terraform, ArgoCD. I design GitOps pipelines that teams own and operate without needing me in the room.
Data Pipeline Engineering
Apache Airflow, Python and Spark. Processing millions of records daily with quality validation built in from day one.
Observability & Reliability
Prometheus, Grafana and ELK. Alerting that fires before customers notice, not after.
Linux & Systems
LFCS certified. VMware ESXi, HPE bare-metal, RAID and firewalls. As comfortable in the data center as in the cloud.
Technical arsenal
Tools and technologies I use daily to ship reliable infrastructure and data systems.
Where I've shipped
Impact-driven work across telecoms infrastructure, cloud platforms, and data engineering.
- Deployed and managed AWS EKS clusters for Zain Iraq's 4G/5G KPI reporting system, serving 74M+ subscribers with zero-downtime upgrades across production environments.
- Authored Terraform modules for EKS, RDS, S3, ALB, and IAM, collapsing environment provisioning from 2 days to 20 minutes and eliminating manual configuration drift.
- Shipped GitHub Actions + ArgoCD GitOps pipeline cutting release cycles by 60%; deployed Prometheus, Grafana, and ELK alerting stack reducing incident detection time by 50%.
- Built Apache Airflow pipelines processing 12,000+ XML files daily representing Jazz Pakistan's network tower KPIs, with automated quality validation at every stage.
- Rewrote slow T-SQL batch queries and switched XML parsing from sequential to multiprocessing, cutting overnight batch time by 30% and boosting throughput by 90% on the same hardware.
- Delivered Delta Scanner, Baseline Comparator, and Cell Comparator, Python analysis tools adopted by the network ops team for daily anomaly detection across 12,000+ towers.
- Maintained 50+ applications across AWS, GCP, Azure, and DigitalOcean at 99.9% uptime over two consecutive years, including Django, Flask, and WordPress deployments with nginx and CDN.
- Automated server setup and deployments with Bash and Python, cutting provisioning time by 60%. Handled SSL, domain config, and Linux server hardening across all production environments.
- Authored deployment runbooks and onboarding docs that enabled new engineers to operate infrastructure independently from day one.
Things I've built
Verified credentials
Industry-recognized certifications across cloud infrastructure, containers, and automation.
Certified Kubernetes Administrator (CKA)
Linux Foundation Certified System Administrator (LFCS)
Containerized Applications on AWS
Academic foundation
Let's connect
Open to DevOps, Data Engineering, and Linux Sysadmin roles in Berlin and remote. Reach out and I will get back to you fast.
Get in touch
Whether you're hiring for a DevOps or Data role, have an infrastructure challenge worth solving, or just want to talk Kubernetes, my inbox is open.
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