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Bruno Alencar

Bruno Alencar

Senior backend engineer and engineering manager

I've spent 8+ years building and scaling Node.js and TypeScript systems in production. As IT Manager at Quero Delivery, a food-delivery platform, I lead the engineering function: architecture, AWS infrastructure, CI/CD and coaching the team on Domain-Driven Design.

  • Based in Dublin, Ireland since August 2026.
  • Open to backend engineering and engineering leadership roles.
  • Speaks Portuguese (native) and English (full professional proficiency).
Email meDownload résumé (PDF)
Illustrated portrait of Bruno Alencar wearing glasses and headphones at his desk, with code on a monitor beside him

Recent work at Quero Delivery

  • Event-driven order workflows

    Kafka producers and consumers that decouple services and carry real-time domain events across the platform.

  • Cloud and reliability

    Services on AWS EKS (Kubernetes) built for high availability and horizontal scaling, shipped through GitHub Actions.

  • Search and caching

    Product search on MongoDB Atlas Search and a tuned Redis caching layer that cut response times and backend load.

  • Observability

    End-to-end monitoring with Grafana, Prometheus and Loki, wired to OpsGenie for proactive incident response.

Experience

From my résumé, most recent first.

  1. – Present

    IT Manager at Quero Delivery

    Remote, Brazil. Food delivery platform

    Higher platform reliability and faster releases through observability, Kafka-driven decoupling, and CI/CD improvements.

    • Lead the engineering function across backend services, infrastructure and team practices, owning architectural decisions and technical strategy.
    • Designed and improved CI/CD pipelines with GitHub Actions and Heroku, accelerating deployments and reducing release friction.
    • Drove event-driven architecture using Apache Kafka producers/consumers for order workflows, decoupling services and enabling real-time domain events across the platform.
    • Built and operated services on AWS EKS (Kubernetes), ensuring high availability and horizontal scalability.
    • Optimised product search by introducing MongoDB Atlas Search, improving relevance and user-perceived performance.
    • Improved caching strategy with Redis (scaling and tuning), cutting response times and backend load.
    • Implemented end-to-end observability with Grafana, Prometheus, Loki, Librato and Papertrail (SolarWinds), integrated with OpsGenie for proactive incident response.
    • Coached engineers on Domain-Driven Design, code quality and problem-solving, fostering a high-performance culture.
    • Managed access and security across AWS, Heroku, Cloudflare and the GitHub organisation.

    Technologies: Node.js, TypeScript, Kafka, AWS EKS, Kubernetes, MongoDB Atlas Search, Redis, Grafana, Prometheus, Loki, GitHub Actions, Heroku, Cloudflare

  2. –

    Full Stack Developer at Quero Delivery

    Brazil

    Shipped customer-facing features and internal tooling end-to-end while improving API discoverability through OpenAPI documentation.

    • Built and maintained Node.js/TypeScript services in both monolith and microservice architectures.
    • Developed customer-facing features and internal tooling end-to-end, from API design to React frontends.
    • Authored OpenAPI (Swagger) documentation to streamline API consumption across teams.

    Technologies: Node.js, TypeScript, React, OpenAPI/Swagger, Microservices

  3. –

    Full Stack Engineer at AE Studio

    Los Angeles / Florianópolis. International consultancy

    Delivered features for international clients at scale and shipped a working NFT marketplace integrating on-chain events with a responsive UX.

    • Delivered features for international clients across microservice architectures at scale.
    • Worked on an Ethereum NFT marketplace: deployed smart contracts, listened to on-chain events with web3.js, and synchronised state into a cache database to improve UX.

    Technologies: React, TypeScript, Node.js, MongoDB, Solidity, web3.js, Hardhat, Serverless Framework, IPFS, NFT.Storage, Alchemy

  4. –

    Full Stack Engineer at V4 Company

    Delivered a production-ready task management system from scratch, including the underlying API architecture and scheduling integrations.

    • Built a Trello-like task management application supporting multiple visualisation modes, drag-and-drop reordering, recurring tasks and scheduling — handling complex domain rules at scale.
    • Designed the API foundation from scratch: TypeScript, TypeORM, Jest, OpenAPI (Swagger), environment configuration and deployment scripts.
    • Integrated Google Calendar for scheduling workflows.

    Technologies: React, TypeScript, Node.js, PostgreSQL, MongoDB, TypeORM, Jest

  5. –

    Full Stack Developer at GeekHunter Brasil

    Tech recruitment platform

    Enabled third-party data integration at scale and improved organic acquisition through SEO/performance work.

    • Built SEO-optimised landing pages and job search pages, focused on Core Web Vitals, semantic HTML and page-load performance.
    • Engineered a large-scale data extraction pipeline (100M+ user records) in Node.js to format and export data for third-party integration.
    • Created an interactive salary calculator: complex SQL with subqueries and outlier handling, results plotted on charts by technology and experience.
    • Integrated an email marketing API and led a feasibility study to migrate from Angular.js to React with Server-Side Rendering.

    Technologies: Ruby on Rails, Python (Flask), Node.js, Angular.js, PostgreSQL

  6. –

    Freelance Full Stack Developer at Independent / Workana

    Delivered contract web development work for multiple clients independently.

    • Delivered web development projects for various clients on a contract basis.

  7. –

    Full Stack Developer at Innovate

    Delivered an offline-capable geospatial maintenance system and admin tooling for real-world field operations.

    • Built an admin panel for workforce management and service requests using Angular 2.
    • Developed a geospatial application (Leaflet) plotting streetlights on a map for maintenance signalling, including offline-first sync using CouchDB + PouchDB.
    • Designed and built REST APIs to manage geo-points, employees and maintenance workflows.

    Technologies: Angular, Node.js, Express, Sequelize, Mongoose, Ionic, Leaflet, CouchDB, PouchDB, MongoDB, PostgreSQL

  8. –

    Frontend Developer at Prática STI

    Shipped a delivery admin panel and companion loyalty app, published to the App Store — first hands-on Vue.js experience.

    • Developed an admin panel to manage a delivery application and a companion mobile app for a virtual loyalty card.
    • Published apps to the Apple App Store; first commercial experience with Vue.js.

    Technologies: JavaScript, Vue.js, Angular, Ionic

Side project

–

Founder & Host, POE (Programação Orientada a Estagiário)

Co-founded an educational YouTube channel teaching web development through live pair-programming sessions, covering HTML/CSS/JS, React, Next.js, Node.js, TypeScript, MongoDB and PostgreSQL.

Projects

Public repositories on GitHub.

  • Live multiplayer quiz

    BrunoAlencar/quiz-website

    A real-time, Kahoot-style quiz app: the host presents questions, players join by code or QR, and scores include speed bonuses. Built with Next.js, Node.js, Socket.IO and PostgreSQL.

    TypeScript, 1 star

  • Kafka microservices sync

    BrunoAlencar/poc-kafka-node-with-kafka-connector

    A distributed-systems proof of concept: two Node.js microservices (service-one / service-two) that stay in sync across two separate databases through a Kafka consumer paired with Kafka Connect.

    TypeScript, 2 stars

  • Clean Architecture API with TDD

    BrunoAlencar/clean-node-ts-api

    A study repository for sharpening Node.js/TypeScript/Clean Architecture and TDD skills — 52 commits deep, with Jest unit + integration suites, Husky and lint-staged wired in for testing discipline.

    TypeScript

  • NestJS REST API

    BrunoAlencar/nestjs-api-challenge

    A REST API built with NestJS and documented with Swagger, developed as an architecture and API-design challenge.

    TypeScript

  • Google Maps in Ionic

    BrunoAlencar/ionic3-google-maps-examples

    Examples of how to use the Google Maps JavaScript API in an Ionic application, combined with HTML5 geolocation.

    TypeScript, 24 stars, MIT license

  • SEO-focused tools directory

    BrunoAlencar/tools-list-front-end

    A tools directory front-end built with React and Next.js, with an emphasis on SEO optimization.

    JavaScript, MIT license

Recommendations

From former teammates on LinkedIn, translated from Portuguese.

“I had the opportunity to work with Bruno on several projects where his contribution was essential. He led a performance optimization effort with Redis, achieving a 40% reduction in server costs. Beyond the technical side, Bruno was a reference for the team — exceptional at leading developers, supporting and mentoring several engineers. A complete and reliable professional.”

Jennysson Junior, Senior Software Engineer
Original in Portuguese

“Tive a oportunidade de trabalhar com o Bruno em vários projetos onde sua atuação foi essencial. Ele liderou a otimização de performance com Redis, atingindo uma redução de 40% de custos com servidores. Além da parte técnica, Bruno foi uma referência para o time, se demonstrando excepcional na liderança de desenvolvedores. Apoiando e orientando vários programadores. Um profissional completo e confiável.”

“A dedicated professional, hungry for knowledge, and above all a great person to talk to and work alongside day to day — always proactive and altruistic, handling situations calmly and staying upbeat regardless of circumstances. He doesn't settle for comfort zones and stays far from stagnation; I'm certain this guy has a bright future ahead. He goes after what he wants on his own initiative and always finds a way to learn and achieve his goals. Without a doubt, a great person to have as a teammate.”

Paulo Roberto Rosa, Staff Software Engineer
Original in Portuguese

“Profissional dedicado e sedento por conhecimento, antes de tudo uma ótima pessoa para se conversar e conviver no dia a dia de trabalho, sempre muito proativo e também altruísta, encara as situações com tranquilidade e sempre demonstra estar feliz e animado independente de qualquer coisa. Não se conforma com zona de conforto e passa longe de estagnação, esse menino tem um futuro brilhante pela frente, tenho certeza sem dúvidas. Vai atrás das coisas sozinho mesmo que seja por fora e sempre dá um jeito de aprender e conseguir o que almeja. É uma pessoa muito boa de se ter como parceiro de equipe, sem dúvidas.”

“JB is very responsible and dedicated. A developer who spares no effort to help, teach, and figure out what needs to be done. A true team player.”

Fabio Smania, Senior Product Manager
Original in Portuguese

“O JB é muito responsável e dedicado. Um desenvolvedor que não mede esforços para ajudar, ensinar e descobrir o que precisa ser feito. De fato um teamworker.”

“I worked with João Bruno, an excellent professional who always sought to stay up to date and prepared for the widest range of challenges, always pursuing better opportunities that matched his deep knowledge. A remarkable person who speaks for himself — in short, an excellent professional to work alongside.”

João Henrique Gomes, Backend Developer
Original in Portuguese

“Trabalhei com João Bruno, um profissional excelente, que sempre buscou estar atualizado e capacitado para os mais diversos desafios, galgando sempre uma oportunidade melhor que fosse favorecer seu grande conhecimento, uma pessoa ímpar que dispensa comentários, em resumo o excelente profissional para se trabalhar em conjunto.”

Skills

Backend & architecture
Microservices, Monoliths, Domain-Driven Design, REST APIs, OpenAPI/Swagger, Event-Driven Architecture, Kafka, RabbitMQ
Languages & runtime
TypeScript, JavaScript, Node.js
Data
MongoDB, MongoDB Atlas Search, PostgreSQL, Redis, TypeORM, Mongoose
Cloud & DevOps
AWS EKS, Amazon S3, CloudFront, AWS Parameter Store, Heroku, Docker, Kubernetes, GitHub Actions, Cloudflare
Observability
Grafana, Prometheus, Loki, Librato, Papertrail (SolarWinds), OpsGenie
Frontend
React, Next.js, Vue.js, Angular, Ionic
Testing & quality
Jest, Automated Testing, Code Review

Education and certifications

Education

  • BSc Computer Science

    FACIMA, –

Certifications

  • AWS Certified Cloud Practitioner

    Amazon Web Services

  • Memory for AI Applications with MongoDB

    MongoDB

  • MongoDB Developer Learning Path

    MongoDB

    4 badges: Core Concepts & Architecture, CRUD Operations, Aggregation Fundamentals, SQL to Document Model (2025)

  • AWS Certified Solutions Architect – AssociateIn progress

    Amazon Web Services

Verify badges on Credly

Contact

Open to backend engineering and engineering leadership roles.

The fastest way to reach me is email or LinkedIn. I’m based in Dublin, Ireland.

joaobrunoalencar@gmail.com