Mohamed is available for hire
Hire MohamedMohamed Chiheb Ben Jemaa
Verified Expert in Engineering
Platform Engineer and Developer
Berlin, Germany
Toptal member since March 7, 2023
Bio
Mohamed is an engineer with over five years of experience in information technology, specializing in Kubernetes and cloud-native technologies. Having a software development and site reliability engineering background, he is an avid open-source contributor interested in advanced Kubernetes topics. Mohamed has solid knowledge of Kubernetes ecosystem, Google Cloud Platform, and Terraform.
Portfolio
IONOS
Go, Kubernetes, Kubernetes Operators, Cloud Infrastructure, Kubernetes Security...
Giant Swarm
Kubernetes, Amazon Web Services (AWS), Go, Google Cloud Platform (GCP), Azure...
Groupe Renault
Kubernetes, Go, Google Cloud Platform (GCP), Linux, Prometheus, Grafana...
Experience
- Kubernetes - 5 years
- Google Cloud Platform (GCP) - 4 years
- Helm - 4 years
- Go - 4 years
- Prometheus - 4 years
- Azure - 3 years
- GitOps - 3 years
- Amazon Web Services (AWS) - 2 years
Availability
Part-time
Preferred Environment
Kubernetes, Google Cloud Platform (GCP), Linux, Azure, Amazon Web Services (AWS), IT Infrastructure, Terraform, Prometheus, Go, Grafana
The most amazing...
...thing I've done as an open-source contributor was developing an open-source project to automate the lifecycle of monitoring components.
Work Experience
Senior Platform Engineer
2023 - PRESENT
IONOS
- Developed and maintained a Cluster API provider for Proxmox and IONOS Cloud.
- Built a distributed, multi-component Kubernetes operator to scan container images and upload SBOMs to Dependency-Track, focusing on resource optimization and seamless workflow integration.
- Built and maintained Kubernetes operators to automate daily use cases, including Vault automation, auto-onboarding to GitOps, and automated DNS record creation.
- Improved the monitoring integration of the internal platform by setting a new architecture and structuring metrics with labels and global relabeling.
Technologies: Go, Kubernetes, Kubernetes Operators, Cloud Infrastructure, Kubernetes Security, CI/CD Pipelines, Linux, Cluster API, Monitoring, Prometheus, Terraform, Grafana, Argo CD, Architecture, Infrastructure as Code (IaC), DevOps
Platform Engineer
2022 - 2023
Giant Swarm
- Developed and maintained open-source projects for automating the lifecycle of monitoring components using Prometheus and Grafana.
- Ensured infrastructure and workload monitoring and logging were functioning correctly.
- Provided customer support and participated in handling incident management.
- Integrated the Prometheus agent in workload clusters as an alternative to an entire Prometheus instance.
- Developed the Prometheus disk resizing feature as part of the monitoring operator.
Technologies: Kubernetes, Amazon Web Services (AWS), Go, Google Cloud Platform (GCP), Azure, Prometheus, Grafana, Linux, Cloud, GitHub, Google Kubernetes Engine (GKE), Cloud Environments, Amazon EKS, Architecture, Infrastructure as Code (IaC), DevOps
Kubernetes Consultant
2022 - 2022
Groupe Renault
- Managed production-grade Kubernetes clusters for the whole Renault group.
- Built and maintained Helm charts used by multiple teams.
- Enabled Kubernetes multitenancy to ensure a good developer experience.
- Built a GitOps deployment mechanism on Kubernetes with Argo CD.
Technologies: Kubernetes, Go, Google Cloud Platform (GCP), Linux, Prometheus, Grafana, Networking, Helm, Docker, Git, GitOps, Amazon Web Services (AWS), GitHub, Google Kubernetes Engine (GKE), Cloud Environments, Argo CD, Content Delivery Networks (CDN), Amazon EKS, Architecture, Infrastructure as Code (IaC), DevOps, Python
Site Reliability Engineer
2019 - 2021
MaibornWolff
- Extended the existing monitoring stack, pulled metrics from Azure, pushed custom metrics to Prometheus, and created dashboards.
- Built and maintained Helm charts for Java microservices.
- Developed a Kubernetes controller to help with complex deployment involving controlled reconnects of IoT devices.
- Set up high availability for Prometheus and Alertmanager and managed the migration of the old setup to the new setup.
- Wrote automation scripts and pipelines for common and complex tasks, including copying disks and creating a temporary failover replica.
- Investigated the impact of caching PostgreSQL results on the performance of Java microservices.
- Designed an architecture to manage multiple Kubernetes clusters with databases on Azure.
- Set up a backup and restore process from Elasticsearch to an on-premise server.
Technologies: Kubernetes, Docker, Azure, PostgreSQL, Go, Bash, Linux, Google Kubernetes Engine (GKE), Google Cloud SQL, Cloud Environments, Argo CD, Content Delivery Networks (CDN), Amazon EKS, Architecture, Infrastructure as Code (IaC), DevOps, Python
Full-stack Engineer
2018 - 2020
think tank Business Solutions Tunisia
- Developed new features for existing customer projects.
- Set up environments and servers to host various projects using Linux and Ubuntu.
- Developed back-end API services using Java and Spring.
- Built pipelines to synchronize Oracle Database ETL with Talend, Jenkins, Java, and Oracle.
- Integrated data reporting and analytics using Java, Oracle, Spring, and Ext JS.
- Developed CI/CD cycles for common microservices to automate deployments.
Technologies: Docker, Linux, Mobile, HTML, CSS3, JavaScript, PostgreSQL, Oracle, Google Cloud SQL, Cloud Environments, Content Delivery Networks (CDN), Python
Experience
Website for Sotutrasm
http://www.sotutrasm.com/Sotutrasm is a company that deals with underwater construction. They needed a website to highlight their services and give clients more ideas about their reference works. I created the website, fixed their webmail, and deployed it.
Electronic Rosary Good Example
The application is aimed at devout Muslims looking for an app to help them conduct their daily religious practices. It offers various services, including an electronic rosary and Qur'an. The electronic rosary enables users to record the number of praises throughout the month and provides Azkar, a set of recitations of verses. When installed, the electronic Qur'an allows users to save their progress and continue reading from where they left off.
Manahaj App
A Saudi Arabian school curriculum mobile app that allows students to access their learning assets and materials through its simple and easy-to-use user interface. I developed the back end and mobile version and handled deployments.
Cluster API Provider for Proxmox
https://github.com/ionos-cloud/cluster-api-provider-proxmoxThe Cluster API brings declarative, Kubernetes-style APIs to cluster creation, configuration, and management. The Cluster API Provider for Proxmox VE is a concrete implementation of Cluster API for Proxmox VE.
Cluster API Provider for IONOS Cloud
https://github.com/ionos-cloud/cluster-api-provider-ionoscloudThe Cluster API Provider for IONOS Cloud makes declarative provisioning of multiple Kubernetes clusters through Cluster API on IONOS Cloud infrastructure possible. It's a Kubernetes sub-project focused on providing declarative APIs and tooling to simplify provisioning, upgrading, and operating multiple Kubernetes clusters.
Started by the Kubernetes Special Interest Group (SIG) Cluster lifecycle, the Cluster API project uses Kubernetes-style APIs and patterns to automate cluster lifecycle management for platform operators. The supporting infrastructure, like virtual machines, networks, load balancers, and VPCs, as well as the Kubernetes cluster configuration, are all defined in the same way that application developers operate by deploying and managing their workloads. This enables consistent and repeatable cluster deployments across a wide variety of infrastructure environments.
Started by the Kubernetes Special Interest Group (SIG) Cluster lifecycle, the Cluster API project uses Kubernetes-style APIs and patterns to automate cluster lifecycle management for platform operators. The supporting infrastructure, like virtual machines, networks, load balancers, and VPCs, as well as the Kubernetes cluster configuration, are all defined in the same way that application developers operate by deploying and managing their workloads. This enables consistent and repeatable cluster deployments across a wide variety of infrastructure environments.
Kubernetes Cluster with Flatcar
I added support to our CAPI providers, as well as Proxmox and IONOS Cloud support to Flatcar. I contributed to Flatcar and COREOS ignition to add support for our platforms, and finally, I added support for our providers.
Education
2013 - 2016
Bachelor's Degree in Information Technology
Institut Supérieur des Etudes Technologiques (ISET) de Sfax - Sfax, Tunisia
2011 - 2013
High School Diploma in Computer Science
El Tawfik - Sfax, Tunisia
Certifications
OCTOBER 2022 - NOVEMBER 2025
Certified Kubernetes Application Developer
Linux Foundation
OCTOBER 2022 - NOVEMBER 2025
Certified Kubernetes Administrator
Linux Foundation
NOVEMBER 2021 - AUGUST 2027
Kubernetes and Cloud Native Associate
Linux Foundation
AUGUST 2021 - PRESENT
HashiCorp Certified: Terraform Associate
HashiCorp
JUNE 2021 - PRESENT
Google Cloud Professional Cloud Architect
APRIL 2021 - APRIL 2023
Certified Kubernetes Security Specialist
Linux Foundation
AUGUST 2020 - AUGUST 2022
Professional Cloud DevOps Engineer
Google Cloud Platform (GCP)
Skills
Tools
Google Kubernetes Engine (GKE), Grafana, Helm, Git, Terraform, GitHub, Amazon EKS, Kubernetes Operators
Paradigms
DevOps
Platforms
Kubernetes, Google Cloud Platform (GCP), Linux, Amazon Web Services (AWS), Azure, Docker, Oracle, Mobile, Web
Languages
Go, Python, JavaScript, SQL, HTML, CSS3, Bash
Storage
PostgreSQL, Google Cloud SQL, Cloud Environments, Databases
Frameworks
Spring
Other
Prometheus, Cloud, GitOps, Certified Kubernetes Administrator (CKA), Security, Site Reliability Engineering (SRE), IT Infrastructure, Cloud Infrastructure, Argo CD, Content Delivery Networks (CDN), Architecture, Infrastructure as Code (IaC), Networking, CI/CD Pipelines, Kubernetes Security, Cluster API, Monitoring, Software Engineering, Algorithms, Data Structures, APIs, Data, Flatcar
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