Rubén Guerrero
Rubén Guerrero Sánchez
Senior Software Engineer

Software Engineer with +9 years of experience in web development. Worked on multiple types of companies, multiple types of business, and use cases. Mostly working on product-oriented companies.

A big field of knowledge in terms of web technologies, but mostly focused on Frontend and Backend related technologies.

Key Skills

  • Open-mindedness
  • Creativity
  • Humbleness
  • Accountability
  • Hands-on
  • Management
  • Attention to detail

Tech Skills

  • React
  • TypeScript
  • NodeJS
  • Frontend tooling
  • UI/UX Skills
  • Testing
  • Software Architecture

Work Experience

Freelance · Software Engineer
Jan 2008 - Present · +16 years

I have been working as a Freelance Software Engineer for almost the beginning of my career. My mind is every time looking for new side projects and businesses. I sometimes work on websites for small companies, that I do in my free time.

Boopos · Tech Lead
May 2022 - Present · 1 year 11 months

Boopos helps talented buyers acquire a business and brokers close their sale mandates by committing flexible financing for buying an e-commerce or SaaS businesses.

Tech & Tools: React, Jest, Typescript, Node, AWS, MongoDB, Segment,, Hubspot CRM, LaunchDarkly,, Sentry, Docker

Clinpify · CPO & Co-Founder
Jan 2021 - Aug 2022 · 1 year 7 months

Clinpify is transforming the way people wash their car, giving everyone access to enjoy their vehicle always clean without lifting a finger. We improve the future by making the world shine.

Tech & Tools: React, Typescript, Jest, React Native, Stripe, Nestjs, Nodejs, Heroku,, Segment, Stripe, Sentry, Docker

Ontruck · Senior Staff Software Engineer
Jun 2016 - Apr 2022 · 5 years 10 months

Working as a Senior Staff Software Engineer in one of the vertical teams. Always working close to product and business teams, understanding the business requirements, and applying technology to solve these problems.

Also, I am leading the Frontend Guild, organizing the different initiatives and sessions, with the objective of empowering the quality and good practices inside the Guild.

I am employee #5 of Ontruck, so I have been working since almost the beginning of the company. It is been a lot of changes in terms of the company structure, way of working, business requirements, etc. Always been opened and well adapted to these changes.

Tech & Tools: React, Redux, Python, Django, Flask, Segment, Sentry, Datadog

Idealista · Frontend Engineer
Feb 2014 - Jun 2016 · 2 years 4 months is the leading real estate portal in Spain. I worked on the revamp of almost all the public website, refactoring and recreating almost all the pages from scratch.

Also, I worked on building the internal applications of the company. I was mainly focused on Frontend, but also entering on the Backend part if it was needed.

Tech & Tools: JSP, Java, Javascript, HTML5, CSS3, jQuery, Dojo...

Redbility · Frontend Engineer
Dec 2013 - Feb 2014 · 2 months

Redbility is a design agency. I was working on creating websites for big companies.

The designs were very demanding in terms of interactions and user experience, with pixel-perfect adjustments.

Tech & Tools: Pixel-perfect, HTML5, CSS3, jQuery, Javascript

Peoplecall · Frontend Engineer
Jul 2012 - Dec 2013 · 1 year 5 months

Peoplecall is a telco company. I was working on building the internal websites and applications of the company.

I worked closely with the design team, defining and building the interactions on the different products.

  • I built some landing pages to capture clients.
  • I collaborated in a Phonegap application to make VoiceIP calls.
  • I was in charge of measuring the conversions in the websites.
  • I collaborated in the development of internal applications.

Tech & Tools: Responsive design, Jekyll, CSS, HTML5, Javascript, Phonegap

Eternitic · Frontend Engineer
Apr 2012 - Jul 2012 · 3 months

Eternitic was a pure marketing company. I learned a lot of marketing concepts during these months. I was the only person in charge of the tech part. I was mostly creating websites focused on marketing campaigns, also working on SEO optimizations, and applying improvements and modifications to old websites.

Tech & Tools: Joomla (yes, Joomla), jQuery, HTML5, CSS from the scratch

Binocean · Frontend Developer
Nov 2011 - Apr 2012 · 5 months

This was my first contracted work. I was working as a Frontend Developer creating websites and applications for small and medium companies.

Binocean was a small company of three employees. I was really focused on the Frontend part, also playing around with Backend at some points.

Tech & Tools: HTML5, CSS3, Javascript, jQuery, PHP, Wordpress, Django

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