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Breinlinger Juan Paulo

Site reliability engineering

About

I am a results-driven, highly motivated, and collaborative Engineer with a DevOps approach. I thrive in environments where I can continue to grow my skills. I enjoy breaking down barriers between Development and Infrastructure teams through the use of automation and testing, enabling rapid iteration and safe failure. I implement metrics that help drive informed decisions at different levels.

I am skilled in troubleshooting and performance analysis of high-traffic infrastructures. I am proficient in understanding and developing reliable, modular, and tested code in various languages, including Python, Bash, Ruby, TypeScript, and Groovy.

I enjoy working in an Agile, collaborative environment focused on communication and team building. I have over 20 years of experience in the Telecom, Financial, Digital Marketing, Education, Health, and Retail industries.

Is important to note that after 10+ years of consultancy in the contracting space, I am actively seeking a permanent position where I can apply my expertise.

Feel free to contact me by email or call me witin business hours based on my vailability published in my Online Calendar. Thank you!

Work Experience

Feebris LTD
UK, London
Contract
November 2023 – Present
Site Reliability Engineer
Consulting services in cloud infrastructure desgin and implementation. Successfully implemented and maintained AWS infrastructure
Highlights
  • Migrated manually created infrastructure to IaC using Terraform, SAM, Packer and custom scripts.
  • Architecture a VPC based network topology to support multiple environments across multiple regions.
  • Implement support services: Grafana, WireGuard, Superset, RDS Proxy and cloud monitoring services.
  • Developed a cli tool in bash to automate the build and deploy process in a fully automated manner to support CI/CD
John Lewis Partnership (Waitrose)
UK, London
Contract via EqualExperts
November 2021 – November 2023
Site Reliability Engineer
SRE consultant and part of the platform engeneer team. Collaborating on architecturing and implementing cloud solutions for the main retail site. Colaborate in different areas of the platform including Monitoring, AWS Cloud Services, CI/CD, Security, EKS Clusters and CDN.
Highlights
  • Improved CI/CD reliability and performance by implementing DockerInDocker solution, docker build for jenkins and jenkins agents.
  • Improve and mantain EKS clusters including upgrades, addons, prometheus exporters, istio, ingress controllers and more.
  • Successfully migrate from Jenkins CloudBeas to Jenkins OSS.
  • Improve codebase using best practices around testing in different languages including Bash, Python and Groovy.
  • Backstage greenfield project development and deployment.
  • Involved on major incidents around k8s cluster performance and reliability.
  • Develop processes around effective incident troubleshooting. Successfully organized troubleshooting labs to improve the teams skills and efficiency.
Mirgor
Argentina, Buenos Aires
January 2020 – November 2021
Site Reliability Engineer
Build and design kubernetes clusters to support a new product development for IoT and video streaming.
Highlights
  • Kubernetes on bare metal implementation and support.
  • Implemented CI/CD using Jenkins, Helm and custom build scripts including unit testing, functional testing and progressive deployment all the way to production.
  • Built Developer Platform so that the developers can dynamically create the microservices and CI/CD pipelines, monitoring and alerting would be automatically available.
  • Support developer and business team on product architecture.
Designtechnica Company
United States, Portland
Permanent
January 2017 – June 2019
Site Reliability Engineer
I was the main SRE responsible of building, mantaining and growing their full infrastructure to support their main website https://www.digitaltrends.com and other various websites.
Highlights
  • Successfully migrate manually created bare metal servers to docker based bare metal servers, including server refresh.
  • Successfully migrated from Datacenter Bare metal service to AWS Cloud Services using Terraform, packer, Lambda, RDS, ECS, S3, Route53 and VPC.
  • Build automated deployment pipelines following CI/CD best practices for infrastructure as well as code using jenkins.
  • Support developer and business teams on a daily basis.
Woordford Investment Management
UK, London
Contract
January 2016 – January 2017
Site Reliability Engineer
I was the main SRE responsible of building, mantaining and growing their full infrastructure to support their main website https://www.woodfordfunds.com and mobile application.
Highlights
  • Successfully Build and mantain AWS Cloud infrastructure with CloudFormation, Terraform, ECR, Ec2 and RDS.
  • Full CI/CD implementation for applications and infrastructure code using jenkins.
Elsevier (EqualExperts)
UK, London
Contract via EqualExperts
January 2015 – January 2016
Site Reliability Engineer
I joined at Elsevier through Equal Experts as a devops practitioner to advice on their Cloud Infrastructure and release practices.
Highlights
  • Full continuous delivery pipeline implementation for 3 project using AWS Cloud formation, Ansible, vagrant, Jenkins and custom ruby scripts.
  • Github Flow implementation and mentoring.
  • Successfully delivered 2 full greenfield projects to production.
O2 (EqualExperts)
UK, London
Contract via EqualExperts
June 2014 – January 2015
Salesforce release engineer
I joined at o2 through Equal Experts as a devops practitioner to advice on their development and release practices.
Highlights
  • Full continuous delivery pipeline implementation for SMIP project using Docker, Ansible, vagrant, selenium, Jenkins, Ant and custom ruby tools.
  • Custom build tools to support continuous delivery on salesforce including: salesforce-deploy-tool, salesforce-dcgen, salesforce-sql.
PingTune Music messanger
UK, London
Contract
January 2014 – June 2014
Site Reliability Engineer
Joined at Pintune greenfield project to help them build a high availability escalable infrastructure for their backend API. Also to implement automated build processes for their IOS and Android mobile apps. I actively collaborated in the API development written in ruby using Sidekiq and Rack.
Highlights
  • Full continuous delivery pipeline implementation for their API, Android and IOS apps.
  • Jenkins implementation using multiple plugins like build pipeline plugin among others.
  • Full configuration management implementation from scratch using puppet roles and profile pattern.
  • Metrics collection and monitoring with collectd, Graphite, Statsd, Grafana and custom scripts.
  • Saas integration including NewRelic, GitHub, PagerDuty, MongoDB Cloud, MixPanel, Nexmo.
  • MongoDB cluster administration and maintenance.
  • API development written in ruby using Sideqik and Rack.
  • API Full stack build automation using nginx, passenger, redis.
  • Digital Ocean API development to auto provision full stack instances through Jenkins.
Previous work experience
UK/London, Argentina/Buenos Aires
January 2001 – January 2014
SRE/System Administrator/Team Leader
Below is a list of my previous work experiences. You can see more details in my Linkedin Profile.
Highlights
  • SRE at Aimia Inc / Contract
  • SRE at Net-a-porter Inc / Contract
  • SRE at Lastminute.com / Permanent
  • SRE at Freshnetworks Inc / Permanent
  • Unix System Administrator and Team Leader at HP / Permanent
  • Unix System Administrator and Team Lweader at IBM / Permanent
  • Unix System Administrator and Team Lweader at Impsat / Permanent

Contact

10 Rue du Mont Baron
Annecy 74000 France
+33 7 65 18 64 00

Education

  • 2001 2006

    UADE, Buenos Aires

    Bachelor (4 Years course)

    Information Technology - 1/1/2001 to 1/1/2006

Skills

Container Orchestration
EKS LKS (Linode) DOKS (DigitalOcean) Kubernetes (BareMetal) K3s Kops minikube CRD Development ECS Helm
Cloud Services
VPC Route53 CloudWatch S3 Cognito, CloudFront IAM ECS EKS EC2 ALB/ELB/NLB RDS (MySQL/PosgrSQL) Lambda API Gateway WAF CloudTrail ECR
Development
Python Ruby Bash Typescript Groovy Angular Flask Rails
Infrastructure as Code
Terraform Ansible CloudFormation Puppet Packer
Monitoring
Grafana Prometheus Prometheus/exporters NewRelic ES APM Nagios Superset ELK Loki Logstash
Databases
RDS DynamoDB MySQL PostgreSQL MongoDB CouchDB Redis
Secrets Manager
Terraform Vault KubeSeal AWS SecretsManager
Continuous Delivery
Jenkins Github Actions Gitlab CI ArgoCD
Containers
Docker DockerD ContainerD Compose MultiStage Build MultiArch Build Size optimization Testing
Testing
Bats Pytest Selenium Server-spec Jest
Content Distribution Networks
Fastly Akamai CloudFront
Java Ecosystem
Jmx Ant Tomcat Gradle Maven
Misc
Nexus Backstage Taskfile

Languages

  • EnglishProfesional speaker / C2
  • FrenchAdvance speaker / C1
  • SpanishNative speaker

Interests

sports and hobbies
Ski Paragliding Rock Climbing Mountaneering Trekking