About Me

Backend Software Engineer

4+ years building backend services and microservices architecture, specialized in Go. Passionate about distributed systems, clean architecture, and performance optimization.

$cat resume.pdf

Why I Built This Blog

I started RuntimeRants out of curiosity and a need to document what I learn.

Most tutorials tell you what to do, but rarely explain why it works that way. I wanted a space to share the deep dives I do when learning — the real engineering notes, not the polished marketing content.

What you'll find here:

Technical deep dives into backend systems
CI/CD pipelines, deployment strategies, and DevOps patterns
Low-level explorations: sockets, syscalls, concurrency
Comparisons with code, benchmarks, and honest opinions
Notes from books I'm reading (DDIA, system design, etc.)

What I Do

I focus on Backend & Systems Engineering — building scalable, reliable services that handle real-world complexity.

Backend Development & APIs

Backend development, API design, and building production services.

Distributed Systems & Data Pipelines

Distributed systems, data pipelines, messaging/streaming, and reliability.

Architecture & System Design

Architecture, system design, scalability patterns, and real-world trade-offs.

* Curiosity: I also enjoy solving problems on Advent of Code and LeetCode.

Experience

Backend Software Engineer (Golang)

Dribba

Dec 2024 – PresentAndorra.com · CityXerpa

Designing, developing, and maintaining backend microservices in Golang within distributed, production-grade environments.

Built end-to-end booking systems for hotels and buses: search, filtering, payments, cancellations, refunds
Integrated payment gateways (RedSys) with transaction handling and error recovery
Designed services with hexagonal architecture, clean code, and separation of concerns
Worked with GraphQL, gRPC, REST APIs, Pub/Sub messaging, and transactional emails
Deployed on Kubernetes (GCP) with GitLab CI/CD for automated builds

GoMySQLRedisgRPCGraphQLKubernetesGCP

Education

Software Engineering Degree

Universitat Rovira i Virgili

Sept 2020 – June 2024 · Tarragona, Spain

Tech Stack

The tools I use regularly for backend development and infrastructure.

stack — zsh

joel@runtimerants ~/stack % tree

Tech Stack

├─Languages

│ ├─Go

│ ├─Java

│ ├─C

│ ├─Python

│ └─JavaScript

├─Backend & APIs

│ ├─Spring Boot

│ ├─gRPC

│ ├─GraphQL

│ ├─REST

│ ├─Webhooks

│ └─Sockets

├─Databases

│ ├─PostgreSQL

│ ├─MySQL

│ └─Redis

├─Messaging & Streaming

│ ├─Kafka

│ ├─RabbitMQ

│ └─Pub/Sub

├─Architecture

│ ├─Microservices

│ ├─Event-driven

│ └─Hexagonal

├─Cloud & Containers

│ ├─GCP

│ ├─Cloud Run

│ ├─Kubernetes

│ └─Docker

└─DevOps & Tooling

├─GitLab CI/CD

├─Git

├─Linux

└─Bash

joel@runtimerants ~/stack %▋

Contact

GitHub LinkedIn Email Instagram

Feel free to reach out if you want to discuss something technical, collaborate on a project, or just say hi.

Setup / Uses

setup — zsh

editorsNeoVim · VS Code · IntelliJ IDEA

terminalmacOS Terminal · Oh My Zsh

vcsGitHub · GitLab

containersDocker Desktop · Minikube

api_toolsPostman · Swagger / OpenAPI

databaseTablePlus

networkingngrok · Tailscale · NordVPN

notesObsidian · Excalidraw

Hardware

LaptopMacBook Pro (M4 Pro) · 24 GB · 512 GB

MonitorBenQ Mobiuz 27" 2K · 175 Hz

Desktopi5 14th Gen · RTX 4070 Super · 32 GB · 2 TB SSD

KeyboardEpomaker F75 "Vanilla Ice"

MouseLogitech G502

HeadsetLogitech Gaming

Dotfiles & Side Projects

Yes, I spent way too many hours tweaking my editor. No regrets.

NeoVim configMy terminal setup for backend dev QR GeneratorTiny QR generator I built for fun

This Blog

framework: Next.js + Nextra
styling: Custom CSS
hosting: Vercel
analytics: none (privacy first)