$ ssh fernando@world
Fernando
Penna
Results-driven Tech Manager and Software Engineer with extensive expertise in Node.js, AWS, DevOps, and Full-Stack Development. Proven track record of agile project management, team leadership, and delivering high-quality solutions at scale.
# Experience
Senior Full Stack Engineer
Aug 2023 - PresentBlackthorn.io - Salesforce Apps / Remote
Development and improvement of the events project, the most used of Blackthorn's Salesforce apps, handling 100k users concurrently with a dedicated Redis cache layer and a synchronization data system with Salesforce.
- Helping product team to architect new solutions and give estimates of tasks
- Working with Angular + Node.js and AWS
- Development of CI/CD pipelines using GitHub Actions
- Coaching junior and mid-level developers
- Create synchronization strategy for Salesforce customer data
Senior DevOps/Infra Consultant
Jan 2024 - PresentZamper Tecnologia / São Paulo, Brazil
Offering costs optimization services for AWS workloads, development of CI/CD pipelines and kubernetes workload optimization
- Spin up infrastructure with AWS
- AWS Cost reduction
- Create GitLab CI manifests and CI/CD pipelines
- ArgoCD deployments and administration
- Terraform templates for infrastructure as code
- Kubernetes cluster administration and optimization
- OTEL observability tools implementation
- Dockerfiles and compilation support for multiple environments
Software Specialist
Jun 2021 - May 2023Suno - Investments Industry / São Paulo, Brazil
Responsible for launching one of the most important projects for the company — a Node.js API with React dashboard integrating with multiple APIs for stock market data. Managed ~100k assets in the database using HTTP, Crons, and WebSockets to collect historical, price, and indicators data. The API handled 100k+ users and could scale.
- Product discovery with Product Managers
- Monorepo maintainer using NX and Lerna
- DevOps with GitLab CI, AWS, and Kubernetes templates
- Integrated and developed features using microservices and NestJS
- Coaching junior and mid-level developers
Tech Manager
Feb 2022 - Aug 2022Ingresse - Events Ticket Industry / São Paulo, Brazil
Reduced AWS infrastructure cost by ~50% without losing quality and scalability. Handled traffic for ticket sales openings — events and parties sold out almost instantly with 300k users on new sales, including tickets for NYE cruises and concerts like Anitta.
- Managed microservices infrastructure using Terraform
- AWS infrastructure cost optimization
- Led team rites: 1x1s, retrospectives, and reviews
- Right arm of the CTO, receiving high-level demands
- Coaching junior and mid-level developers
Senior Full Stack Engineer
Oct 2018 - Mar 2021Beliive / Remote
Fast-learned Python to help with backend tasks starting with zero experience. Responsible for creating the mobile app from scratch using Ionic Cordova.
- Python development using Flask and SQL databases
- Vue.js SPA application development
- Pipelines and infrastructure using Bitbucket and Azure
- Mobile application development from scratch
- Working in an agile environment
Founder / Tech Manager
Mar 2016 - May 2021OniQ Tecnologia / São Paulo, Brazil
Shipped over 15 projects, mostly mobile and web apps. Notable projects include a mobile video streaming app with 100k+ users for a beauty/makeup course for a 1M influencer, and a wedding real-time event using Firebase with ~10k participants.
- Client requirements gathering and progress reporting
- AWS infrastructure for all projects
- Led team rites: 1x1s, retrospectives, and reviews
- Resource provisioning and budget management for development team
- Implementing new PoCs to improve development processes
- Agile project management
# Education
BSc in Computer Science
Graduated 2014Universidade Federal de Mato Grosso (UFMT) / Mato Grosso, Brazil
Certified Kubernetes Application Developer (CKAD)
2024The Linux Foundation / Online
View credential →AWS Certified Solutions Architect - Professional (SAP-C02)
2024Amazon Web Services / Online
View credential →Dale Carnegie Course in Human Relations
2019Dale Carnegie / São Paulo, Brazil
# Skills
languages
frontend
cloud & devops
databases
leadership
other
# Projects
Blackthorn Events Platform
Full-stack events platform as the most used Salesforce app at Blackthorn.io, handling 100k concurrent users with a dedicated Redis cache layer and Salesforce data synchronization.
Hidden 18+ platform
Content photo and video scrolling platform, responsible for implementing argocd, aws, k8s optimizations, sping up infrastructure using terraform and observability using OTEL
Suno Stock Market API
Node.js API with React dashboard integrating with multiple APIs for real-time stock market data. Managed ~100k assets using HTTP, Crons, and WebSockets, serving 100k+ users.
CIH App
Mobile video streaming app built for a beauty and makeup course for a 1M+ follower influencer. Shipped through OniQ Tecnologia, reaching 100k+ users.
Eats For You
A homemade meal delivery app connecting home cooks looking for extra income with people who want affordable, quality home-cooked food for lunch. Initially serving the Alphaville region in São Paulo, Brazil.
# Blog
OpenTelemetry in Node.js: A Practical Guide
A practical guide to distributed tracing, metrics, and structured logs in Node.js using OpenTelemetry — based on real production instrumentation.
Scaling a Node.js Monorepo at Suno
How we structured a 38-package monorepo with Lerna, NX, and Yarn Workspaces to power a fintech platform serving 100k+ users.
Building My Personal Site with Astro
A quick look at why I chose Astro to build my personal CV site, and the design decisions behind the dark & techy aesthetic.