Joan Monge

Backend Engineer

Expertise

Backend Developer

I have built a diverse array of backend systems from scratch using modern architectures and technologies such as Hexagonal Architecture, gRPC, Pub/Sub, and GraphQL. I have strong expertise in designing scalable and maintainable backend solutions, leveraging both SQL and NoSQL databases to optimize performance and reliability. My experience spans across the full Software Development Life Cycle (SDLC), ensuring efficient, well-structured, and high-performing backend applications.

Tech stack:

Go Lang

Pub/Sub

gRPC

GraphQL

OpenAPI

No-SQL

Firestore

SQL

PostgreSQL

Postman

DevOps & Automation

Once the application is built, I set up DevOps testing, CI/CD pipelines, and deployment automation using Google Cloud, GitHub Actions, Kubernetes, and Docker to ensure a smooth and reliable Go-Live process.

Tech stack:

Git

GitHub Actions

Docker

Kubernetes

Google Cloud

Linux

Career History

Senior Backend Developer

Token.com Ltd. - Remote

Developing scalable backend systems for a leading blockchain investment platform, focused on transforming the way people engage with digital assets. Token.com leverages cutting-edge technology to deliver secure, high-performance services for tokenized assets.

Architecting and developing microservices in Go Lang for scalable blockchain solutions
Leading small development teams focused on delivering key features and system improvements
Optimizing cloud infrastructure and services to ensure performance and scalability
Designing APIs and data structures to support high transaction volumes and complex queries
Collaborating with cross-functional teams to align product development with business goals

Stack: Go Lang, Google Cloud, Kubernetes, Firestore, gRPC, Pub/Sub, Redis, BigQuery, ElasticSearch, GraphQL

Mar 2021 - Present

Backend Developer (Freelance)

WellPlayedGames Ltd. - Remote

Contributing to the backend development of high-quality, engaging video games for various platforms, including console and mobile. WellPlayedGames Ltd. focuses on delivering fun, polished experiences, often with live ops and free-to-play models.

Designing, building, and maintaining software in a Golang distributed system
Researching, implementing, and integrating domain-relevant algorithms to improve system functionality
Developing tools for server data administration and optimization

Stack: Go Lang, Google Cloud, Kubernetes, MySQL, gRPC, Pub/Sub

Mar 2021 - Aug 2021

Backend Engineer - Firmware Team Lead

Reby S.L. - Barcelona

Leading the firmware development while working as backend developer, focusing on cloud services, internal data management, and firmware support for embedded systems.

Developing microservices for Google Cloud using Go Lang
Writing Python scripts for managing internal data and automating tasks
Maintaining PostgreSQL databases to ensure reliability and scalability
Managing Kubernetes clusters on Google Cloud to ensure high availability and performance
Leading small teams in the development of embedded systems and firmware solutions
Providing firmware and electronic advising for the development of new hardware

Firmware Stack: C, C++, NXP, CodeWarrior
Backend Stack: Go Lang, Google Cloud, Kubernetes, PostgreSQL, gRPC

Jan 2019 - Mar 2021

Firmware Developer

Detnov S.A. - Barcelona

Developing embedded software solutions for security and fire alarm systems, focusing on firmware for hardware devices.

Firmware development for Detnov’s security devices using the ATMega and Renesas family in C and C++
Collaborating in the design and optimization of embedded systems for alarm monitoring and control
Ensuring device functionality and performance optimization under real-world conditions

Stack: C, C++, Renesas, Embedded Systems, Firmware Development

Mar 2017 - Nov 2018

Firmware Developer

Automatismos Control y Programación S.L.U - Barcelona

Developing software for embedded systems, firmware development and desktop applications to manage the devices.

Firmware development for the ATMega family in C and C++
Creation of desktop applications in Java
Using Assembly to enhance performance in critical code areas
Android development to control Bluetooth devices

Stack: C, C++, Assembly, ATMega, NXP, CodeWarriors, Java, Eclipse, Android Studio

Nov 2011 - Mar 2017

Contact Me

Got a project waiting to be realized? Let's collaborate and make it happen!