Senior Site Reliability Engineer

37 years old - Colonia del Sacramento, Uruguay

Education & Courses

Career Institution Status Approved subjects Year
Business Administration Siglo 21 On going 25 2019
Systems Engineering UTN / UADE On hold 20 2022
Qualified accountant with specialization in computing Instituto Vocacional Argentino Finished 58 2005
Course Institution Certificate Year
Microsoft Certified Azure Administrator Microsoft Yes 2022
Red Hat Certified System Administrator Red Hat Yes 2021
Google Cloud Certified: Professional Cloud Architect Google Cloud Yes 2021
HashiCorp Certified: Terraform Associate HashiCorp Yes 2021
Certified Kubernetes Administrator [CKA] Cloud Native Computing Foundation Yes 2021
Microsoft Certified: Azure Solutions Architect Expert Microsoft Yes 2021
AZ-304 Microsoft Azure Architect Design Microsoft Yes 2021
AZ-303 Microsoft Azure Architect Technologies Microsoft Yes 2021
Microsoft Certified: Azure Fundamentals Microsoft Yes 2021
AWS Certified Database - Specialty AWS Yes 2021
AWS Certified DevOps Engineer - Professional AWS Yes 2020
AWS Certified Solution Architect - Professional AWS Yes 2020
Nutanix Certified Professional Nutanix Yes 2019
AWS Certified Solution Architect - Associate AWS Yes 2018
Leadership 3.0 Universidad Torcuato Di Tella No 2016
Advanced Leader Program Ernst & Young No 2015
ITIL Foundations v3 IAAP No 2014
Project Management Business Skills No 2013
PMP Certification Preparation PMC No 2013
Linux SAX Operator Linux Collegium Yes 2013
Microsoft Certified Professional Proydesa Yes 2011
6420 - Fundamentals of Windows Server 2008 IBM No 2010
6421 - Configuring and Troubleshooting Windows Server 2008 IBM No 2010
6424 - Fundamentals of Windows Server 2008 Active Directory IBM No 2010
6425 - Configuring and Troubleshooting Windows Server 2008 Active Directory IBM No 2010
10/2022 to Present

+2000

Lines of Python/JS code

+3000

Lines of code refactored

+200

Lines of
Infra-as-Code

100%

Highly satisfied customers

Senior Site Reliability Engineer at IonicPartners [working for Gigster], in charge of the design and refactor of the legacy applications residing on GCP.
Worked on refactoring AppScript applications to run on top of Lambda functions on AWS, that were called through an API Gateway.
Integrated the application fully with Salesforce and Google services.
Re-architected the application to run on ECS instead of GCP Cloud Run.
Migrated part of the Salesforce DB into a Neo4J [GraphDB]. Created a new application [Lambda + API Gateway] that assist on searching for candidates making queries to Neo4J.

  • Design the new architecture for the application.
  • Refactor the AppScript code to run with NodeJS.
  • Integrate the platform to make use of GDrive and AWS services.
  • Develop the Infrastructure-as-Code for everything that has been deployed.
  • Design the new schema for the GraphDB relationships.
  • Get Salesforce data into GraphDB.
  • Create a Lambda + API Gateway to perform lookups in Neo4J.
  • Assist on the development for the search algorithm and user qualification.
08/2021 to 09/2022

+30%

Cost saving on external services

+30

AWS Accounts managed

+2000

Lines of
Infra-as-Code

100%

Infrastructure on Code

Senior Site Reliability Engineer at MajorKeyTech [working for XSell], in charge of the design and architecture of the AWS & Azure platforms.
Joined the company to assist them on having a better architecture on the AWS & Azure accounts.
Worked on setting up integrations between the AWS accounts, by creating an AWS Organization from scratch, migrating the AWS accounts, implementing AWS SSO plus AWS VPN Client integrated with Okta.
Created the repository that holds the Infrastructure-as-Code and developed the guidelines on how to work on it as the starting point of having everything on code.
Developed the entire network topology between AWS VPCs & Azure networks using VirtualWAN & VirtualHub.
Worked with the internal teams setting up the proper permissions for each one to access only those resources that are inherently required by the role.

  • Design the AWS Account & Azure subscription structure.
  • Create folders/OUs to handle certain environments or requirements.
  • Implement and migrate accounts/subs into the new architecture.
  • Develop the Infrastructure-as-Code for everything that has been designed.
  • Implement SSO through the use of Okta.
05/2020 to 07/2021

+2000

Lines of Python code written

~60

Days to Finish the Project

+200

Lines of
Infra-as-Code

100%

Highly satisfied customers

Senior Python Developer at MajorKeyTech [working for MGstover], in charge of the development of Python code to handle a cryptocurrency portfolio manager for several customers.
Joined the team with the sole purpose of assisting in finishing the project in the time needed, but ended up working on the AWS side as well to improve the overall platform and create the proper architecture to handle this application that was running on Docker Swarm.
Developed the CI/CD pipeline to get the code deployed into non-production environments and accelerate the shipment between sprints.
Refactored part of the application to handle better the queries against the database and make use of multi-threading capabilities alongside async functions to speed up the responses.
Improved the logging capabilities of the platform making use of CloudWatch logs, and networking connectivity through the design and deployment of a new VPN for the internal users.

  • Develop the Python application to handle multiple portfolios from different cryptocurrency platforms [such as Coinbase].
  • Improve the application making use of multi-threading and async functions.
  • Refactor the application according to the 12factorapp guidelines.
  • Create a CI/CD pipeline that kicked in from GitHub Actions to get the code deployed into Docker Swarm.
  • Handle incidents and bugfixes on the code.
04/2020 to 11/2020

+20

Kubernetes clusters managed

+150

Worker nodes managed

+500

Lines of
Infra-as-Code

100%

Infrastructure monitored

Principal Site Reliability Engineer at MajorKeyTech [working for iHerb], in charge of the design and the deployment of an observability platform from scratch to cover 100% of the Kubernetes infrastructure that was deployed between AWS & On-Prem datacenters.
Designed a full stack with Grafana, Grafana Loki, Grafana Tempo, Prometheus & Thanos, through the usage of Helm Charts and Azure DevOps Pipelines for the deployment in each Kubernetes cluster.
Created Loki shippers to gather logs from other AWS services and implemented Kafka for the event streaming between the different Kubernetes clusters and the monitoring one.
Assisted in the instrumentation of the code to generate the traces for Grafana Tempo.

  • Discover all the Kubernetes platforms and create an inventory for them.
  • Design a solution that will be able to monitor end-to-end any application running in the Kubernetes platform and outside, making use of object storage.
  • Create architectural documents and discuss with the rest of the SREs to gather new ideas or pinpoint any issues.
  • Write the code to deploy the observability platform in an automated way making use of RBAC.
  • Create the templates and pipelines in Azure DevOps Pipelines.
  • Create failsafe mechanisms to avoid losing the ability to monitor even if the main monitoring platform goes down.
  • Create automations to help ship the code into the new Observability platform.
  • Assist the developers on instrumenting the code to get the traces into the Observability platform.
  • Collect custom metrics from different services.
  • Work on getting the metrics from the robots at the warehouses into the Observability platform.
  • Write pipelines to move certain logs from the Observability platform to BigQuery on GCP.
03/2020 to 05/2020

+300

Resources migrated to Terraform Cloud

~30

Days to Finish the Project

+1000

Lines of
Infra-as-Code

100%

Highly satisfied customers

Senior DevOps Engineer at Caylent [working for Skedulo], in charge of the design and the migration from Terraform to Terraform Cloud for all of Skedulo's environments.
Joined the team with the task of recover the time lost during the first months of handling this customer and standarize the process of this migration.
Developed an automation to help on the migration of the resources into Terraform Cloud, and avoid any configuration drift on the infrastructure while doing so.
Assisted the team on teaching sessions, to emphasize certain methodologies that helped us moving forward in a more concise way.
Developed a Lambda function that, through an API Gateway, was called during the run of the Terraform [on Terraform Cloud] and kicked in further Terraform deploy to continue the CI/CD pipeline for all the environments.

  • Discovery & analysis of deployed infrastructure in AWS.
  • Create the proper resources in Terraform to hold the already deployed infrastructure.
  • Coach the teammates on how to work with Terraform Cloud and the automation through webhooks.
  • Create proper workspaces for the environments.
  • Create GitHub validation on the code to be ran before it is submitted.
  • Import all the deployed resources from AWS into Terraform.
05/2018 to 07/2020

+3000

servers migrated to Cloud

77

Months as Top Performer

+10000

Lines of
Infra-as-Code

100%

Highly satisfied customers

Senior Site Reliability Engineer at Trilogy Inc. [CrossOver], in charge of the design and deployment of world-class SaaS products, using containerization [Kubernetes/Docker], and cloud services as AWS, Azure, Google Cloud Platform, and VMware @ AWS.
I am focused on the integral management of the Lift & Shift process to VMware @ AWS from its Discovery stage, going through application design on Cloud, implementing shared services, and handover the platform to the team that should administer it.
Manage super-large-scale multi-tenant clusters while guaranteeing uptime.
Developed the automation for the deployments and operational tasks using Infrastructure-as-Code technologies such as Terraform and Ansible, developing code on Python [Django, DRF & Flask as interface] and GoLang to automate daily tasks.

  • Discovery & analysis of deployed infrastructure in multiple data centers.
  • Java application tunning to adequate to the new parameters needed to be migrated.
  • Network topology design and deployment for every workload.
  • Re-platform analysis to evaluate modifications in the product to adapt it to the Cloud.
  • Scripts development to automate the Lift & Shift process.
  • Migration of the workloads to the Cloud [over 1000 servers & 200 containers].
  • Discovery & analysis of deployed infrastructure in multiple data centers.
  • Network topology design and deployment for every workload.
  • Re-platform analysis to evaluate modifications in the product to adapt it to the Cloud.
  • Scripts development to automate the Lift & Shift process.
  • Migration of the workloads to the Cloud [over 300 servers & services].
  • Discovery & analysis of deployed infrastructure in multiple datacenters.
  • Network topology design and deployment for every workload using Consul & Rundeck.
  • Re-platform analysis to evaluate modifications in the product to adapt it to the Cloud.
  • Scripts development to automate the Lift & Shift process.
  • Migration of the workloads to the cloud [over 200 servers & services].
  • Discovery & analysis of deployed infrastructure in multiple datacenters.
  • Network topology design and deployment for every workload between Azure & AWS.
  • .NET application configuration to adapt it to the requirements.
  • Scripts development to automate the Lift & Shift process.
  • Migration of the workloads to the cloud [over 300 servers & services].
04/2018 to 12/2018

+30

Services delivered to clients

5

DevOps / SRE direct reports

22

Finished projects within schedule

100%

Incidents solved within SLA

DevOps Lead at SemperTI S.A., leading five DevOps to provide services to the companies with a Support contract with us. As well, managed projects to implement Kubernetes clusters under OKD or OCP, providing consulting for current workloads in Azure & AWS and performing Infrastructure-as-Code development in Terraform/Ansible. I have worked on several projects to re-design CI/CD pipelines to accelerate our customers’ Application Lifecycle.

  • Analysis of the Infrastructure deployed in AWS.
  • Build the strategic and business plan to re-adequate this to new standards.
  • Optimize the costs augmenting the overall availability of the platform.
  • Lead multi-disciplinary teams to deploy the approved architecture.
  • Document and follow up of the project.
  • Design of the architecture based on REST API to manage Lift & Shift end-to-end.
  • Develop the operational processes in Django [DRF & Flask] & Python.
  • Engineering and Configuration of the Application Life Cycle.
  • Deploy the software into AWS using best-practices and the Well-Architected Framework.
  • Analyze current customer's platform requirements.
  • Identify pain points to prioritize the deliverables.
  • Terraform modules development to deploy in a multi-account AWS environment.
  • Development integration with pre-existent modules and make it Production ready.
06/2017 to 04/2018

+20

Services delivered to clients

+30%

Broadening of Service Offering

27

New processes and documents

100%

Clients satisfied with the service

Director & Pre Sales Engineer at Manas Tecnología Informática S.A., in charge of business and portfolio development for products and services provided by the company to broaden the service offering and modify the share of wallet of our active clients; providing innovative solutions to current obstacles. In charge of developing the business unit focused on our customers' cloud, as to be an evangelizer to our prospects. Additionally, I managed the annual budget and internal policies and procedures to guarantee a work methodology and provide a control scheme considering the flexibility that the company has as a differential for our clients.

  • Annual budget revision to project current fiscal year.
  • Differentiate between fixed, variable, and semi variables expenditures.
  • Gather investments to be done within the fiscal year.
  • Hourly cost generation discriminated by expertise.
  • Generate the formal quotation process for new recurrent services and projects.
  • Act as a communicator for the entire company.
  • Management of marketing funds needed to execute this event.
  • Establish the event agenda, exhibitors, and the definition of the target audience.
  • Define the registry process follow up and control.
  • Final analysis for opportunities on attendees.
  • Perform the analysis of the current commercial area policy.
  • Implement accounting and legal overseeing for current policy.
  • Create a variable and fixed structure definition based on S.M.A.R.T. KPIs
  • Draft a new Commercial Policy and its after revision with the company's board.
  • Define and control tasks, responsibles and deadlines.
  • Develop the strategy for the deployment of this solution.
  • Determine success criteria alongside the customer.
  • Request, develop and control the funds from the vendor to execute the Proof of Concept.
  • Opportunity follow-up once we have finished the Proof of Concept.
  • Analyze variable costs and new economic scheme generation per expense tiers.
  • Design of the technical and commercial proposal to provide professional services in the Public Cloud.
  • Analyze use cases and identify behavioral patterns.
  • Generate a final scheme generation to provide a service at a variable value according to current consumption on the Cloud.
08/2014 to 05/2017

12

Specialized direct reports

2.5 M

USD budget approved

27

Projects led without delay

99.98%

Platforms in charge uptime

97%

Tickets within OLA/SLA

+20%

IT savings per projects

Head of Servers & Storage at Prisma Medios de Pago [Holding: Visa Argentina S.A., Banelco S.A., Monedero, Decidir, Todo Pago, LaPOS y PagoMisCuentas], leading a team of 12 administrators, to design, manage and control project implementation as requirements and incident management over IT infrastructure to satisfy internal and external client needs.
From August 2014 until my last day, I had 27 projects executed in our portfolio, with a 100% success rate, and without delay.

  • Integrate both Exchange organizations, Active Directory platforms and other IT systems.
  • Generate the profile and address policy for the new company.
  • Design and adequate the topology to facilitate any future physical movement.
  • Deploy a Unified Intranet for both companies.
  • Design the infrastructure architecture.
  • Deploy the infrastructure environment.
  • Establish a development strategy.
  • Optimize available resource utilization.
  • Set target responsibles and due dates for the execution of tasks.
  • Lead and gather information to generate a document to present to designed auditors.
  • Establish tasks, responsibles and due dates.
  • Generate a deployment strategy.
  • Migrate from KVM technology to VMware.
  • Optimize both companies' IT resources to maximize efficiency.
  • Develop and deploy the infrastructure architecture.
  • Define alongside the vendor's guidelines the deployment strategy.
  • Establish tasks, responsibles and target dates.
  • Request for Proposals / Quotations document preparation to distribute along with ten providers.
  • Assess technical-commercial proposals to select the best provider.
  • Control the progress and establish strategic definitions.
  • Prepare a project proposal and acceptance document to change the culture within Prisma Medios de Pago SA.
  • Review of the architecture / high-availability schema proposal.
  • Control plan development and perform follow-up meetings.
  • Generate the corporate communication to inform the users about changes in the work-style and the new features.
08/2012 to 07/2014

10

Specialized direct reports

1.3 M

USD budget approved

32

Projects led without delay

99.87%

Platforms in charge uptime

92%

Tickets within OLA/SLA

+35%

IT savings per projects

Infrastructure Project Manager at Visa Argentina SA, leading a ten direct engineers plus 25 analysts belonging to other technical areas to design, deploy and control IT projects.
Starting in August 2012, we led 52 projects with a successful result without any delays nor deviations.

  • Manage CMDB deployment.
  • Lead meetings with inter-disciplinary teams to gather required information.
  • Lead, design, and follow up re-adequation SAN environment plan.
  • Design the Database Availability Group topology, Exchange schema, roles, Database, and Quotas.
  • Migrate the corporate and service accounts to the new Exchange platform.
  • Prepare the Request for Proposals / Quotations document to distribute to the vendors.
  • Analyze the proposals to select the one that fits company needs in technical-economical terms.
  • Manage internal and external resources to meet target project objectives.
  • Establish phases, responsibles and outcomes for a new backup encrpyted environment.
  • Establish a baseline to encrypt any data that contains sensitive information.
  • Coordinate and control infrastructure adequation tasks.
  • Perform required purchases to maximize utilization on hardware already deployed.
  • Lead hypervisors update to ESX 5.5
  • Lead IT infrastructure take-over guaranteeing a zero downtime migration.
  • Perform server adequation to meet Credit Card industry standards and control its deployment.
  • Lead knowledge transfer to internal teams.
  • Work actively on communication topology design.
  • Lead CMDB updates adding new acquired CIs.
  • Lead IT infrastructure take-over guaranteeing a zero downtime migration.
  • Develop and plan a new server and IT componentes topology.
  • Guarantee 100% service uptime over the whole project.
02/2012 to 07/2012

12

Team in charge for technical matters

6500+

Servers supported all over the world

70+

Countries which have been provided expert support

Wintel Technical Focal Point at Cargill Inc., leading a team of twelve resources in order to satisfy internal clients need.
Executing a project manager role as per being principal technical focal point.

08/2009 to 01/2012

9

Team in charge for technical matters

5000+

Servers supported all over the world

30+

Countries which have been provided expert support

Technical Matter Expert at IBM Argentina S.R.L., leading a team of 9 Wintel Junior administrators, also filling the role of a Wintel Server Senior administrator.

05/2008 to 07/2009

Wintel System administrator performing Windows Server [2000 & 2003] administration tasks, along with basic Active Directory administration.

Achievements

2021

AWS Certified Database Specialty

Trilogy

2020

AWS DevOps Engineer - Professional

Trilogy

2020

AWS Certified Architect - Professional

Trilogy

2018

AWS Certified Architect - Associate

Manas

2016

Excellent
performance rating

Prisma Medios de Pago

2015

Excellent
performance rating

Prisma Medios de Pago

2014

Promoted to Head of Servers and Storage

Prisma Medios de Pago

2014

Recognition for participation on fusion project

Prisma Medios de Pago

2014

Promoted to Head of Servers & Messaging

Prisma Medios de Pago

2013

Excellent
performance rating

Visa Argentina S.A.

2012

Excellent
performance rating

IBM Argentina S.R.L.

2011

Promoted to Wintel technical focal point

IBM Argentina S.R.L.

2010

Excellent
performance rating

IBM Argentina S.R.L.

Recommendations

Jonathan shines due to his high level of IT knowledge, his high ability to work, his proactivity and his youth.
He is a very valuable professional.

Jonathan is an outstanding professional, having strong soft skills from his empathy, dynamism, energy and leadership.
With an excellent business vision situation analysis and risk assessment, despite his young age.
Complements with a great technical knowledge, hard skills and a constant search for innovation and develop new technologies that help provide agility and to increase all aforementioned adjectives.

[translated from spanish] from Damián Ávalos - Provider at Prisma Medios de Pago

Jonathan Tissot is a great professional and a great person; working with him, you can clearly see his qualities as a leader and his invaluable contribution to deploy improvements and provide help when it is needed.
I have the pleasure to have him as my boss for over 2 years,
where I have learn and keep learning a lot from his vast knowledge.
I am convinced that having Jonathan in your company is another name for progress and success.

Jonathan was one of the most influential supervisors I had.
He was all the time focused on the company needs and for all of his team members to be motivated,
focused and looking for new technologies and knowledge to do things differently.
Even when my time there was short, it was a learning experience and a constant challenge.
He was always updated with latest trends in methodologies and involved the team in the adoption process.

Jonathan Tissot was an excellent colleague, with whom I shared situations where he demonstrated
his ability to collaborate, to execute from an empathic approach and most of all, his ability to stand out
in order to solve any problem that might rise. In the time that we did not worked in the same team,
he always offered support and assistance to develop technical and non-technical skills. Even working
in different companies, he helped me to develop my leadership skills.
Without any doubt, he is a person that settles the score and to work alongside him was an excellent experience
for which I will be always grateful.

[translated from spanish] from Diego Leonian - Colleague at IBM Argentina S.R.L.

Jonathan's behavior is outstanding. Professionalism and human factor are the 2 variables he is always handling.
Always willing to help and improve and most important of all...
He is willing to challenging himself (and of course he always get it).
A highly valuable resource and an excellent person.