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Guillermo Serrahima

Guillermo Serrahima

(he/him?)

Back End Engineer

Open to:Full-time rolesContract roles

Backend and systems-oriented Software Engineer with experience in R&D environments and cloud-based SaaS platforms. Background in Rust, Python, and C++, with hands-on experience designing APIs, infrastructure tooling, and developer-facing products. Comfortable working across the full software lifecycle, from prototyping and refactoring to deployment, CI/CD, and production support.

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Career: 6

R&D Engineer

Ansys

Full-time · Remote

Aug 2024 - Nov 2025

Successfully demonstrated a proof-of-concept for clients that removed the need for coding knowledge for in-depth customization of complex physics simulation pipelines. Redesigned an internal unmaintained Python library project, as well as introduced testing and continuous integration, to bring it up to company standards.

Python (Programming Language)pytestAgileCookiecutterDocker

Back End Developer

Verbio Technologies

Full-time · Hybrid

Jun 2022 - Jul 2024

Implemented scalable and secure solutions focused on providing a reliable service and efficient operation for cloud-based voice recognition.

Rust (Programming Language)gRPCGitCI/CDPython (Programming Language)Amazon Web Services (AWS)TerraformDocker

Software Engineer

QAD DynaSys | Digital Supply Chain Planning Software

Full-time · Remote

Jun 2021 - Jun 2022

Contributed to the transformation of a desktop app into a web app, adapting it to a marketable SaaS model.

C++C#

C++ Consultor

Capitole Consulting

Full-time · Remote

Jan 2021 - Jun 2021

Saved time through the automation of manual PDF report redaction, and integration of data analysis.

C++Python (Programming Language)

Junior DevOps Engineer

HP Inc.

Full-time · Remote

Oct 2019 - Aug 2020
JenkinsScrumAgile

Junior SDET

HP Inc.

On-site

Sep 2018 - Oct 2019
GoogleTestC++Agile

Education: 1

Universitat Politècnica de Catalunya

Bachelor's degree

2013 - 2018

Projects: 5

Velascobot2

tangled.org/vylion.eurosky.social/velascobot2

Feb 2026

Rewrite of Velascobot with more Python experience.

Velascobot

git.vylion.com/vylion/velascobot

Sep 2017 - Dec 2020

Personal project of a non-sequitur, silly chatbot for the Telegram chat application using Markov chains for text generation. Personal project that I did during some of my free time.

Bindmage Duels

globalgamejam.org/2018/games/bindmage-duels

Jan 2018

Participated as part of a group project in the 2018 Global Game Jam, from the 26th to the 28th of January.

WordWeaver

github.com/vylion/WordWeaver

Mar 2017

Personal project for an Android app for pseudorandom word generation. Tool mainly designed for the creation of constructed languages. Project started for the Fall 2017 Hackathon event by HackUPC from the 3rd of March to the 5th.

( ( ( Radio Wave ) ) )

globalgamejam.org/2017/games/radio-wave

Jan 2017

Participated as part of a group project in the 2017 Global Game Jam, from the 20th to the 22nd of January.

Publications: 4

Vylion4 articles

Shoutout to acme-dns

vylion.leaflet.pub

Apr 2026

First contact with Proxmox

vylion.leaflet.pub

Mar 2026
Jan 2026

My first homelab server

vylion.leaflet.pub

Jan 2026

Languages: 3

Catalan(Native or bilingual)
Spanish(Native or bilingual)
English(Professional working)

Skills: 67

Technical

CI/CDDockerLuaObject-Oriented Programming (OOP)ProgrammingPython (Programming Language)Software DevelopmentSWI-Prolog
Unity3D

Business

Agile

Other

Agile MethodologiesAmazon Web Services (AWS)AndroidAndroid DevelopmentAPI DevelopmentArch LinuxArduinoBack-End Web Development
BashCC#C++CatalanCode RefactoringComputer ScienceCookiecutterDebianEnglishFunctional ProgrammingGitGitHub CopilotGoogleTestgRPCHaskellHTMLJavaJavaScriptJenkinsJiraLaTeXLinuxMatlabOpen-Source SoftwareOpenSusePixel ArtPydanticPytestPythonQtRaspberry PiRepresentational State Transfer (REST)REST APIsRust (Programming Language)ScrumSimple and Fast Multimedia Library (SFML)Software as a Service (SaaS)SQLiteSwing DanceTeamworkTerraformTest AutomationTest CasesTest PlanningTesting ToolsUbuntuVisual StudioXML

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