# Ahmed Madkour

> Software Engineer, Site Reliability Engineer

Location: London, England, United Kingdom
Profile: https://flows.cv/ahmedmadkour

Passionate about distributed large scale systems, systems reliability, and writing code.

## Work Experience
### Software Engineer / Site Reliability Engineer @ Apple
Jan 2025 – Present | London, United Kingdom

### Principal Site Reliability Engineer @ Okta
Jan 2021 – Jan 2025 | London, United Kingdom
Co-drove the creation of a Go CLI tool for improving and safely executing daily infrastructure operations:
- Top contributor to the project. Assisted other teams in developing new features and migrating legacy tools.
- Contributed to establishing the tool as the de-facto standard for all SRE infrastructure operations.
- Leading a Roadmap for building a robust framework and improving many key components.

Led the infrastructure work on a new edge service written in Go to improve edge resiliency:
◦ Worked on the project from the POC phase until production rollout in less than a year.
◦ Helped with reviewing the service code and reducing deployment time by 90%

Led efforts to build the first GCP production environment on Kubernetes:
◦ Worked with stake holders from different teams on building and testing the new environment.
◦ Cross teams efforts on integrating internal tooling.
◦ Collaborated with the QA team to ensure infrastructure and product readiness before going live.

Enhancements to the disaster recovery processes:
◦ Mentored an intern in creating a Go tool reducing the DR process from several hours to one hour.
◦ Various collaborations with Eng teams on addressing new requirements while ensuring safe and fast failover.

### Staff Site Reliability Engineer @ Okta
Jan 2019 – Jan 2021 | London, United Kingdom
Contributed to a cross-team project to move monolith apps from AWS EC2 to a Dockerized ECS architecture:
◦ Delivered the service mesh cluster using Consul and Envoy, and ensured production readiness.
◦ Planned and executed the service mesh cluster upgrade without downtime to +10 clusters.

Started a project to decouple two customer facing load balancer layers:
◦ The decoupling allows faster maintenance and scaling operations up to 6 times.
◦ Drove the initial architecture design and worked with the stake holders on addressing the requirements of the project.

### DevOps Engineer @ relayr
Jan 2017 – Jan 2019 | Berlin, Germany
• Worked with Eng teams on various improvements to a microservice architecture of around 150 services running on AWS ECS.
• Created and tested Python tools for improving various infrastructure operations.
• Planned and executed major improvements on Cassandra, Kafka, Elasticsearch and Zookeeper clusters without down time.
• Improved observability for different teams by delivering critical application and load balancer metrics.
• Contributions to design and build the first production Kubernetes cluster on GKE and Azure.

### DevOps Engineer @ Cognitev
Jan 2016 – Jan 2017 | Egypt
• Driving the infrastructure work on a data pipeline for tracking users events and reporting them to the business unit:
◦ Kafka, Elasticsearch and Cassandra on Kubernetes were used in the stack.
◦ Collaboration with the Eng team to design the data model and run benchmarking tests on the infrastructure.
• Created various Python tools for

### Linux System Engineer @ TE Data
Jan 2014 – Jan 2016 | Smart Village, Egypt
• Various integrations for the AAA clusters with hundred of network routers serving 2.6 million DSL customer.
• Designed, and deployed a Percona MySQL server to resolve various existing DB performance issues:
◦ The DB size was in terabytes with one billion records stored monthly from different services.
◦ Worked with the business unit to deliver critical customer billing reports.
• Helped with the infrastructure design and implementation of a public web portal serving around 50K daily logins.

### Software Engineer @ Intel Corporation
Jan 2011 – Jan 2014 | Egypt
• Worked on the XMM7160 the LTE protocol stack project. The stack was on products such as Samsung GALAXY Tab 3.
• Worked on a code redesign for a power saving functionality.
• Supporter to the team in the unit test environment setup and debugging under Linux.
• Primarily written in C.

### Linux Kernel Software Engineer @ Smartec-Group
Jan 2011 – Jan 2011 | Egypt
• Worked on adding a new security overlay in the mac80211 Linux Kernel module to enhance the WEP protocol.
• Code porting to the OpenWrt, and added the security layer to the Hostapd service for AP mode support.
• Primarily written in C.
• Created Python tools for system testing using Aircrack-ng and Scapy library.


## Education
### Bachelor of Science (B.Sc.) in Computer & Systems Engineering
Mansoura University


## Contact & Social
- LinkedIn: https://linkedin.com/in/ahmedmadkour

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Source: https://flows.cv/ahmedmadkour
JSON Resume: https://flows.cv/ahmedmadkour/resume.json
Last updated: 2026-04-05