Miguel Araújo
Senior Backend Engineer
Salary / Daily rate
Paris, France
Freelance, open to permanent contract
Skills
Languages
About me
Intro
Senior Backend Engineer with 9+ years expertise in Ruby on Rails and cloud architecture across fintech and SaaS platforms. Founded tech startup and delivered scalable solutions at Qonto, Hivebrite, and Pennylane using PostgreSQL, AWS, and microservices. Ready to architect robust backend systems that drive business growth.
Work experience
Software Engineer - Backend
Pennylane
Jan 2025 - May 2025
5 months
Paris, France
Skills: Ruby on Rails · Packwerk · Amazon Web Services (AWS) · PostgreSQL · Notion Productivity Software
Founder
SintropsisFreelance
Jan 2023 - Dec 2024
2 years
Évora, Portugal · Hybrid
Skills: Entrepreneurship · Lean Startup · Project Management
Senior Backend Developer
Regate by Qonto
Jun 2021 - Oct 2022
1 year 5 months
Paris, France
Skills: PostgreSQL · Ruby on Rails · Ruby · Algolia
Senior Backend Developer
Hivebrite
Sep 2019 - Jul 2020
11 months
Paris, France
Ruby, Go, Ruby on Rails, PostgreSQL, Redis, Sidekiq, Docker, AWS, Azure, GCP, TDD, Git, Github, API, Micro-services
Full Stack Engineer
Streetbees
Jun 2017 - Jul 2019
2 years 2 months
Lisbon, Portugal & London, UK
Ruby, Ruby on Rails, React JS, PostgreSQL, Redis, Sidekiq, Docker, AWS, TDD, Git, Github, Elixir, Go
Software Engineer
Chic by Choice
Jul 2015 - Mar 2017
1 year 9 months
Lisbon, Portugal
Rails 4, Ruby 2.2, ElasticSearch 1.1.1, PostgreSQL, Redis, Sidekiq, Javascript (Jquery & Ajax), HTML 5, SASS, TDD, Continuous integration, Git, Github, Peer code review, Agile development, Amazon EC2 & S3 .
Education
Instituto Superior Técnico
Bachelor’s Degree
2011 - 2015
4 years 1 month
Escola Secundaria 2/3 Garcia de Orta
High Shool
2008 - 2011
3 years 1 month