Fernando Sergio Cardoso Cunha, Developer in Toronto, ON, Canada
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Fernando Sergio Cardoso Cunha

Verified Expert  in Engineering

Software Developer

Toronto, ON, Canada
Toptal Member Since
September 11, 2018

Fernando is a telecommunications engineer working in his chosen field since 2013. He's gained hands-on experience working in challenging environments as an individual contributor and in leadership positions. Fernando joined Toptal to work on projects where he can make a meaningful contribution and deliver real value to his clients.


Amazon Web Services (AWS), Kubernetes, Amazon EKS, Terraform, Python...
Amazon Web Services (AWS), Zabbix, Amazon EC2, Amazon S3 (AWS S3), Docker, ECS...
Odebrecht Oil & Gas
Cisco, CentOS, Microsoft SQL Server, Windows Server, Linux




Preferred Environment

Amazon Web Services (AWS), Python, Visual Studio Code (VS Code), Terraform

The most amazing...

...Slack bot I developed was for incident management efficiency by integrating it with Slack (channel creation), Azure DevOps (ticket and RCA Page), and Zoom.

Work Experience


2019 - PRESENT
  • Developed a Slack bot to make incident management more efficient by integrating with Slack, Azure DevOps, and Zoom to create incident tickets, RCA pages, Slack channels, and Zoom meetings.
  • Authored several Terraform modules to provision AWS resources in a centralized and reusable manner.
  • Oversaw the project deliveries to various internal customers with demands in areas such as Data Science, Machine Learning, Computer Vision, Data Engineering, and web development.
  • Build an app using Python (Boto3), GitHub, and running in Kubernetes to ensure that public endpoints in an AWS account would be associated with a WAF firewall.
Technologies: Amazon Web Services (AWS), Kubernetes, Amazon EKS, Terraform, Python, Azure DevOps, Bash, Linux, Prometheus, Honeycomb, Grafana, Thanos, Istio, Git, GitHub, GitLab, Argo CD, Helm, Splunk, Amazon Elastic Container Service (Amazon ECS), GitOps, PagerDuty, Slack, Slackbot, Slack API, Zoom

Senior Network Analyst

2017 - 2019
  • Built and maintained a CI/CD pipeline to improve the development and operations performance.
  • Used the concepts of infrastructure as code and began versioning the definitions files to make it possible to track changes more efficiently.
  • Wrote a Bash script to automate deployment to AWS ECS.
  • Configured the dashboards and alarms using ELK, Kinesis, Firehose, and Zabbix.
  • Developed Ansible scripts to automate the deployment of new versions of FreeRadius and HaProxy.
  • Created a FreeRadius solution running in Docker containers that were receiving more than 100K requests per minute.
Technologies: Amazon Web Services (AWS), Zabbix, Amazon EC2, Amazon S3 (AWS S3), Docker, ECS, ELK (Elastic Stack), SQL, Continuous Integration (CI), Git, GoCD, Ansible, Linux, Bash, Linux CentOS 7

IT Coordinator

2014 - 2017
Odebrecht Oil & Gas
  • Commissioned the telecommunications and IT infrastructure of new ships in South Korea and Singapore.
  • Prepared the budget and monitored the project and IT infrastructure setup on vessels.
  • Analyzed the engineering IT and telecom design.
  • Executed the Dell servers with VMWare with Hypervisor and Windows Servers as the operating system for mission-critical environments (e.g., oil rigs).
  • Set up network equipment such as Cisco switches, Cisco wireless controllers, Cisco Access Point, Riverbed WAN accelerators, Palo Alto firewalls, and Juniper firewalls.
  • Implemented the system's replication feature for the onshore and offshore databases with a very restricted satellite bandwidth.
Technologies: Cisco, CentOS, Microsoft SQL Server, Windows Server, Linux


2013 - 2014
Nokia (formerly Alcatel-Lucent)
  • Developed a solution for WiFi-offloading using OpenWRT (Linux) on TP-Link routers to close the GRE tunnels with the network edge gateways on backhaul networks.
  • Assisted the development of commercial and technical offers involving IP network solutions.
  • Supported the development of commercial and technical offers involving mobile access solutions (LTE and femtocells).
  • Followed up and developed solutions that enabled the technical conditions required by the customer.
Technologies: OpenWRT, Linux

A Script for a CI/CD Pipeline

I created from scratch the script for a full CI/CD pipeline; using Ansible and Bash scripts to manage AWS resources.
2008 - 2014

Bachelor's Degree in Telecommunications Engineering

Universidade Federal Fluminense - Niterói, Brazil


AWS Certified DevOps Engineer – Professional

Amazon Web Services Training and Certification

AUGUST 2020 - AUGUST 2023

Certified Kubernetes Application Developer

The Linux Foundation


AWS Solutions Architect Professional

Amazon Web Services Training and Certification

APRIL 2019 - FEBRUARY 2024

AWS Certified Cloud Practitioner



AWS Certified Developer – Associate

PSI Services LLC

JULY 2018 - JULY 2024

AWS Certified SysOps Administrator Associate


MAY 2018 - MAY 2024

AWS Certified Solutions Architect Associate



Thanos, Slack API


Amazon Elastic Container Registry (ECR), Amazon Elastic Container Service (Amazon ECS), Ansible, AWS CLI, AWS ELB, Terraform, Helm, Amazon EKS, Git, ELK (Elastic Stack), Bitbucket, Jira, GitLab CI/CD, Packer, AWS CodeDeploy, AWS CodeCommit, NGINX, Zabbix, Slack, Grafana, Istio, GitHub, GitLab, Splunk, Zoom




DevOps, Scrum, Continuous Integration (CI), Kanban, Azure DevOps


JavaScript, Bash, Python, SQL


Linux, Amazon Web Services (AWS), Linux CentOS 7, Amazon EC2, Docker, Kubernetes, New Relic, Windows Server, CentOS, OpenWRT, PagerDuty, Visual Studio Code (VS Code)


Amazon S3 (AWS S3), Microsoft SQL Server


Site Reliability Engineering (SRE), HAProxy, ECS, Cisco, AWS CodePipeline, GoCD, Site Reliability, Open Policy Agent (OPA), Prometheus, Honeycomb, Argo CD, GitOps, Slackbot

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