About me
A small introduction about my self
Jorge Castellote
Software Engineer from Madrid
Cloud Enthusiast and Open Source lover, I combine large experience on operations with development expertise to adapt or migrate Systems, Apps and development teams to Agile methodologies. In a nutshell, I can help releasing better software and faster, and/or operate it more efficiently.
On the operations side, I have spent half of my career on operations. Upgrading, rolling out, scaling, configuring and integrating systems that operate to improve networks' efficiency has been my daily life for many years, both at Ericsson and InfoVista. This has granted me with good knowledge on Linux and Unix systems, among with the need of measuring and monitoring everything in an efficient and accessible way, and the necessity to automate operations (and its risks). Because of this experience with Performance Management, I am very used to measuring and analyzing the impact of operations on larger ecosystems like MNO and ISP networks.
I also had the chance to work on the R&D side, understand their procedures and working methodologies as a product manager, which I then exported to the operations team, so Customers could enjoy more agile customizations, new features, safer and more controlled upgrades, etc...
When it comes to DevOps and advanced Sysadmin activities, I can provide end to end services to deploy and maintain clouds, container clusters, help with microservicing components or apps (when actually convenient), automate and implement CI/CD pipelines, which includes performance analysis, automated tests, vulnerability analysis and more.
On the other hand, if the company does not develop the software, but rather makes use of it, I can help automating environments, implement and automate safer and more efficient upgrades, expand the solution by integrating other software, isolating every role and component as much as possible so the final solution gains flexibility and is easier and cheaper to scale.
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Technical Skills
I can say i’m quite good at
Linux Systems
Proficient on Debian and RedHat based systems. Diving into container-oriented distros like CoreOS and Atomic
Cloud
100% infrastructure as code with Terraform, CloudStack and others. AWS, Openstack, Azure, GCE, Hetzner, DigitalOcean and Rackspace.
Kubernetes
CI/CD Pipelines implementation and automation. Good knowledge on micro-service architecture for specific use cases.
Python
My favorite swissknife to integrate software, develop it, automate it or customize it.
Open Source Tools
Fan of Ansible, Nginx, Prometheus, Nifi, Grafana, Curl, OpenSSL, ClickHouse, Helm, HAProxy, GlusterFS, Postgres and many more; willing to learn new ones.
Other Languages
Happy to code on any language. Good experience on PHP, Perl and JS, besides Python.
Work Experience
My previous associations
present
Booking.com
Site Seliability Engineer
Handling core infrastructure, from baremetal to microservices, with a focus on security.
March,2022
Whitelioness
Site Seliability Engineer
Lead SRE for packhunt.io. Making the infrastructure work for the platform, mainly with Kubernetes and AWS.
August,2021
Schuberg Philis
DevOps Engineer
Handling core operations for tier 1 Dutch retailers and manufacturers online platforms. Heavy usage of Kubernetes and AWS, using GitOps and SRE principles. Enabling developers to make use of the cloud in agile contexts, with focus on security and automated operations via Gitlab and Github pipelines in combination with K8s clusters.
March, 2020
Virtuagym
DevOps Engineer
Migration, creation and administration of Microservices. Deployment and evolution of CI/CD pipelines, implementation of Agile methodologies. Orchestration of containers with Kubernetes, and overall administration and security of k8s clusters. A swiss knife for development teams.
Present
DBentoBox
Cloud Architect
As a side project, I help DBentoBox startup boosting their development capabilities. My responsabilities include deployment and administration of DBentoBox Cloud, which is composed of an OpenStack cloud running a Kubernetes cluster on top, as well as implementation of CI/CD pipelines and overall microservice architecture on DBentoBox SaaS products.
Apr,2019
InfoVista
Solution Architect
Integrating new technologies like Openstack and Kubernetes with InfoVista Service Assurance products, building prototypes and creating POCs for Customers.
Jul,2018
InfoVista
Product Manager
Design and prototyping of some of Infovista's VistaFoundation evolutions to become more cloud native and open for more complex integrations, namely introduction of RESTful APIs into the solution, cloud image builds and new frontend.
Jul,2016
InfoVista
Solution Architect
Design and technical lead of complex Performance Management end to end solutions, on ISP Networks, Mobile networks and large enterprise networks. Deploying solutions locally at Customer network or SaaS in the cloud, hooking the solution into the target network. Working mainly with GNU/Linux systems.
Jul, 2015
InfoVista
Professional Services Consultant
Delivering Network & Application Performance Management solutions, specifically customized and adapted for every network and application, from mobile networks to cloud services. Performing integration, roll-out, customization and development of various NPM and APM solutions.
Jul,2011
Ericsson
Software Developer
Lead developer for key performance indicator (KPI) analyzer tool. This application has been used as a common network point of view between the customer and the vendor on managed services environments, providing daily and weekly reports, multiple graph and statistical features that can be used for network monitoring, troubleshooting and optimization, as well as providing a centralized database where all network KPIs (obtained from multivendor technologies) are stored.
May,2010
Ericsson
OSS Engineer
Administration, adaptation and support for Ericsson's OSS-RC Network Manager in the main spanish Mobile Operators.
Education & Diplomas
What I have done in my academic career
Bachelor degree
Universidad Politécnica de Madrid, UPM - Madrid, Spain
Telecommunications Engineering Bachelor degree, specialized in telematics
Bachelor degree Thesis
Mälardalens University, MDH - Västerås, Sweden
Telecommunications Engineering Bachelor Thesis, focused on C programming in networking environment.
References
Some Customers and Networks I have worked for.
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Contact
Please feel free if you would like to have a chat.