Summary
Overview
Work History
Education
Skills
Interests
Websites
Accomplishments
Timeline
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Christian Lete

Principal Infrastructure and Security Engineer
Zurich / Remote

Summary

Experienced with designing and maintaining scalable infrastructure systems. Passionate in troubleshooting technical issues and ensure system reliability and security. I have led engineering teams and projects based on Kubernetes, cloud computing, and artificial intelligence.

Overview

22
22
years of professional experience
4
4
Languages

Work History

Principal Infrastructure and Security Engineer

Tocos
Remote
2023.11 - Current

Tocos: a cryptocurrency backed on CO2 credits.

  • Automation of cloud computing infrastructure on AWS and GCP, via Infrastructure as Code (IaC) .
  • Manage infrastructure (+50 servers) based in ECS for the blockchain solution.
  • Reduced the CI/CD pipelines execution time by 30% (Github/Github Actions).
  • Defined SRE processes: Incident management, monitoring and alerting, SLO/SLI objectives.
  • Deep debugging in diverse production platforms. Usually on Python.
  • Developed local testing solution based on containers for the data platform team.
  • Optimised cloud usage and reduced 20% the costs.

Sabbatical

None
2022.08 - 2023.10
  • Provided product management guidance to startup founders and colleagues.
  • Helped friends solving technical issues with Linux and cloud (AWS/GCP).

Product Manager & Team Lead

Kubeshop
Remote
2022.02 - 2022.08

Kubeshop: an accelerator for open source startups.

  • Led a team of 8 engineers (task prioritisation/resources management/one to one) UX, and DevRel.
  • Defined the product vision and executed the roadmap execution for a Kubernetes centric IDE (https://monokle.io/).
  • Linux/Kubernetes debugging and Bash script development.

Engineering Manager

Advertima
2021.09 - 2022.02

Advertima: provides solutions based on computer vision (AI/ML).

  • Led a team of 7 engineers, expanding to 15 members.
  • Participated in occasional code reviews and Linux/application troubleshooting.
  • Established career advancement plans for the engineering team.
  • Hiring and mentorship for the engineering infrastructure team.

Executive Board Member

Nine Internet Solutions AG
Zurich
2020.01 - 2021.07

Nine: A leading cloud and hosting company in Switzerland.

  • Company strategy: technology and product.
  • Definition of engineering policies.
  • Developed an company incident and response procedures.

Product Manager & Team Lead

Nine Internet Solutions AG
2020.01 - 2021.07
  • Company Overview: Leading cloud and hosting in Switzerland
  • Managed Google Kubernetes Engine (MGKE) farm for multiple customers (30+) and Nine Kubernetes Engine (NKE - Nine's own managed Kubernetes solution) products.
  • Leading cloud and hosting in Switzerland

Senior Platform Engineer

Nine Internet Solutions AG
2019.08 - 2019.12

Nine: Leading cloud and hosting company in Switzerland.

  • Developed and enhanced Managed Google Kubernetes Engine (MGKE) solution on Google Cloud Platform to boost eciency and scalability.
  • Automated infrastructure deployment and management using Infrastructure as Code (IaC) tools like Terraform and Gitops.
  • Oversaw a multi-tenant Kubernetes cluster serving over 50 customers.
  • Kubernetes and Infrastructure consultancy.

Senior DevOps Engineer

Crowdhouse
2018.10 - 2019.07

Crowdhouse: A Real-estate crowdfunding solutions

  • Implemented CI/CD pipelines on CircleCI, improving development and deployment processes from 1 hour down to 8 mins.
  • Script development on Python and Bash scripting.
  • Troubleshoot and debugging.
  • Infrastructure management and optimisation on AWS and Google Cloud via IaC/GitOPS.
  • Managed over 30+ servers (Linux/ECS/Kubernetes)
  • Implemented a testing environment on Kubernetes for application testing.

Senior Systems Engineer

Ricardo.ch
2018.01 - 2018.09

Ricardo.ch is the biggest marketplace in Switzerland.

  • Managed, scaled, automated, and secured the platform (100+ servers) running under Kubernetes and Linux (Baremetal),
  • Implemented and developed the monitoring platform (Grafana/Prometheus).
  • Developed internal tooling in Python and Shell scripts
  • Application and Linux troubleshooting/debugging in highly critical environments
  • Developed and ran Linux courses for engineers.

Cyber Security Business Analyst (contractor)

UBS
2017.07 - 2017.12

UBS is one of the main banks in Switzerland.

  • Analyst within the security engineering team, responsible for the technical requirement analysis of the logging and monitoring platform (Splunk).

Senior Security Engineer

SwissRE
2016.09 - 2016.11

SwissRE is a swiss Re-insurance company.

  • Incident and response manager of IT security events
  • Malware detection and reversing.
  • Elastic search implementation of indicator of compromise for detecting security related events.
  • Python and Perl script tooling development.

Senior Security and Systems Engineer

Swisscom
2012.07 - 2016.07

Swisscom is a leading and the biggest telco in Switzerland.

  • Member of the CSIRT (incident response team):
  • Occasionally detective, investigating and coordinating company-wide incidents, analysis of possible IT security breaches.
  • The Linux "guy" helped to implement software and troubleshoot issues on the team's lab.
  • Led and coordinated the implementation of the GRR forensic solution (client and server) across the organization on 20,000 workstations in a scalable way.
  • Ran digital forensics analysis on Windows and Linux systems.
  • Specialized in network and Linux/UNIX security practices.
  • Developed internal tooling in Python and Bash scripts.

Senior Systems Engineer

Swisscom
2008.11 - 2012.07

Swisscom is the leading and biggest telco in Switzerland.

  • Managed over 300+ (virtual and physical) UNIX/Linux servers for one of the Switzerland's Public PKI.
  • Developed internal tooling in Python and Bash scripts.
  • Executed OS hardening procedures for enhanced system security.
  • Developed an in house high available solution for centralized logging, and implemented intrusion detection systems across UNIX and Linux servers.
  • Implemented a disaster recovery backup system across two geographical regions.
  • Troubleshooting and incident response.

UNIX/Jboss Administrator

IT Convergence for Successfactors.com
Buenos Aires
2006.02 - 2008.03

IT Convergence is an IT consultancy company.

  • Managed a UNIX farm of +40 servers running Solaris and some RedHat machines.
  • Implemented Splunk as a centralised logging solution - early adopter of Splunk.
  • Developed internal tooling in Bash script and Perl.
  • Debugged issues on Jboss and UNIX systems.
  • Participated in on-call rotation.

UNIX/Linux Admin

Globant for Lastminute.com
Buenos Aires / London
2004.08 - 2006.01

Globant is an IT consultancy company. Lastminute.com was one of Europe's biggest leisure booking systems.

  • Managed and monitored 400+ Linux and UNIX servers.
  • Debugged production issues on Apache, Linux, Jboss systems.
  • Hardening measures on both operating system and application layers of Linux systems.
  • Development of internal tooling in Bash and Perl.

Linux System Administrator

INCUCAI
Buenos Aires
2003.02 - 2004.08

INCUCAI is Argentina's authority for organ transplantation.

  • First Linux administrator in charge of setting up a complete infrastructure for a three-tiered architecture (Apache + Tomcat + Oracle) across over 20 Linux servers, including mail servers.
  • Firewalls implementation (iptables).
  • Linux security hardening.
  • Development of internal tooling on Bash scripts.
  • . Enhanced internet access company-wide through the introduction of a proxy caching solution.
  • Established development environments to support project needs.

Education

Electrical Engineering Course -

Universidad Nacional Autonoma De México
Mexico
2000.01 - 2002.01

Skills

AWS

GCP

Kubernetes

Distributed computing

Python

Bash scripting

Linux system administration

IaC (Terraform)

Cybersecurity: Cloud and Linux

Incident response management

Team leading

Interests

Astronomy
Cats
Music
Art
Sports

Accomplishments

Implemented a highly available bastion server, central logging system and HTTP proxy for a secure environment.

Led and coordinated the implementation of the GRR forensic solution (client and server) across the organization on 20,000 workstations in a scalable way.

Timeline

Principal Infrastructure and Security Engineer

Tocos
2023.11 - Current

Sabbatical

None
2022.08 - 2023.10

Product Manager & Team Lead

Kubeshop
2022.02 - 2022.08

Engineering Manager

Advertima
2021.09 - 2022.02

Executive Board Member

Nine Internet Solutions AG
2020.01 - 2021.07

Product Manager & Team Lead

Nine Internet Solutions AG
2020.01 - 2021.07

Senior Platform Engineer

Nine Internet Solutions AG
2019.08 - 2019.12

Senior DevOps Engineer

Crowdhouse
2018.10 - 2019.07

Senior Systems Engineer

Ricardo.ch
2018.01 - 2018.09

Cyber Security Business Analyst (contractor)

UBS
2017.07 - 2017.12

Senior Security Engineer

SwissRE
2016.09 - 2016.11

Senior Security and Systems Engineer

Swisscom
2012.07 - 2016.07

Senior Systems Engineer

Swisscom
2008.11 - 2012.07

UNIX/Jboss Administrator

IT Convergence for Successfactors.com
2006.02 - 2008.03

UNIX/Linux Admin

Globant for Lastminute.com
2004.08 - 2006.01

Linux System Administrator

INCUCAI
2003.02 - 2004.08

Electrical Engineering Course -

Universidad Nacional Autonoma De México
2000.01 - 2002.01
Christian LetePrincipal Infrastructure and Security Engineer