6391 Ruby on Rails English-speaking jobs in Barcelona
B2B Content Lead
- SLNG
- Barcelona
- March 30
It’s an execution-heavy operator role focused on speed, iteration, and technical clarity. ... Convert raw inputs (calls, notes, Looms) into publishable content quickly
Iterate continuously based on
Senior Backend Engineer (EU/US/Canada Remote)
- Xata.io
- Barcelona
- March 30
Participate in on‑call rotations to handle and resolve critical issues. ... Experience working on open‑source projects.
BSc/MSc in Computer Science.
Phd Position: Development Of A Standardized Framework For Ai Threat Models And Robustness (Project G
- I2Cat Research Centre
- Barcelona
- March 16
Apply here on the GENOME Website. ... Hands‑on experience with AI/ML frameworks (e.g., Python, PyTorch, TensorFlow). ... Evidence of working on agentic or autonomous systems during or after the Master’s degree. ... To ensure your candidacy is valid, you must follow the formal application process on the GENOME portal ... Design specialized security frameworks for agentic AI systems, focusing on the MAESTRO architecture to
Senior Sales Lead - Digital Maritime Technology
- PSD Group
- Barcelona
- March 13
The focus is on creating opportunities, building pipeline, and closing deals.
Cloud Architect (AWS / Azure)
- NTT DATA Europe & Latam
- Barcelona
- March 11
📅 Intensive working hours (8:00 a.m. to 3:00 p.m.) on Fridays and during the summer months. ... 📍 Although our search is primarily focused on Barcelona, we also have teams in Madrid, Zaragoza, ... What you will do
Design cloud and hybrid architectures on AWS and/or Azure aligned with business, security
Event Producer (Freelance)
- Thursday
- Barcelona
- April 1
Type : Freelance, commission based role- hosts earn on average $3-4,000 (USD) per month, with top performing ... in 150+ cities, and features in Forbes, the BBC, and even Australia's #1 morning show, we're on ... If you know how to work a room, love building community, are confident on socials, and want to be part
Partnership Business Developer Representative UK&ROW
- Factorial
- Barcelona
- March 31
Comfortable with phone; thrives on conversations and building connections. ... At Factorial, we’re on a mission to simplify HR for small and medium-sized businesses with our all-in-one ... We help companies automate their HR processes so they can focus on what truly matters: their people. ... workflows across HR, finance, and operations, freeing teams from manual processes so they can focus on
Chief Technology Officer (Machine Manufacturing)
- 3Ecruit
- Barcelona
- April 1
who wants to own a genuinely differentiated hardware platform, not maintain incremental improvements on ... WHAT YOU'LL BE WORKING ON
Advanced printhead and fluid-handling systems Complex system architecture ... industrial reality Comfortable leading across disciplines, even if your core expertise sits in one Hands-on
Cybersecurity Engineer (Space Domain)
- Indra Group
- Barcelona
- April 1
Hands‑on experience with Linux system administration. ... At Indra Space, we are on a mission to redefine the European space industry by delivering high-performance ... Requirements
Experience with systems or solutions based on SW COTS, preferably in the space domain.
Gnss System Engineer
- Indra Group
- Barcelona
- February 5
At Indra Space, we are on a mission to redefine the European space industry by delivering high-performance
CRM & Marketing Automation Specialist
- EU Business School
- Barcelona
- March 28
Competitive salary: Based on experience and qualifications. How to apply? ... EU Business School is seeking a CRM & Marketing Automation Specialist, gain hands-on experience leading ... About you: You are a "MarOps" enthusiast who understands that great marketing is built on a clean
Scrum Master (M/F/D)
- Astek
- Barcelona
- March 27
You will be part of a strategic program focused on enhancing the traveler experience across multiple
Freelance Machine Learning Engineer
- Mindrift
- Barcelona
- April 4
Compensation
On this project, contributors can earn up to $34 per hour equivalent, depending on their ... Please note that other projects on the platform may offer different earning levels based on their requirements ... Mindrift connects specialists with project-based AI opportunities for leading tech companies, focused on ... Compensation varies across projects depending on scope, complexity, and required expertise. ... this project, tasks are estimated to require around 10‑20 hours per week during active phases, based on
Statistics & Python Expert - Freelance AI Trainer
- Mindrift
- Barcelona
- April 4
Compensation
On this project, contributors can earn up to $34 per hour equivalent, depending on their ... Please note that other projects on the platform may offer different earning levels based on their requirements ... Mindrift connects specialists with project-based AI opportunities for leading tech companies, focused on ... Compensation varies across projects depending on scope, complexity, and required expertise. ... chains in areas like number theory, combinatorics, graph theory, and numerical analysis;
Base problems on
Financial Mathematics (Python) - Freelance AI Trainer
- Mindrift
- Barcelona
- April 4
Compensation
On this project, contributors can earn up to $29 per hour equivalent, depending on their ... Please note that other projects on the platform may offer different earning levels based on their requirements ... Mindrift connects specialists with project-based AI opportunities for leading tech companies, focused on ... Compensation varies across projects depending on scope, complexity, and required expertise. ... chains in areas like number theory, combinatorics, graph theory, and numerical analysis;
Base problems on
Senior Python Developer - Code Migration Specialist
- Mindrift
- Barcelona
- April 4
Mindrift connects specialists with project-based AI opportunities for leading tech companies, focused on ... and how much to contribute (20-30 hours per week)
Each project has its own compensation level based on ... On this project, AI trainers earn up to $30 per hour equivalent
Opportunity to contribute to innovative
Electrical Engineer & Python Expert - Freelance AI Trainer
- Mindrift
- Barcelona
- April 4
Compensation
On this project, contributors can earn up to $31 per hour equivalent, depending on their ... Please note that other projects on the platform may offer different earning levels based on their requirements ... Mindrift connects specialists with project-based AI opportunities for leading tech companies, focused on ... Compensation varies across projects depending on scope, complexity, and required expertise. ... this project, tasks are estimated to require around 10-20 hours per week during active phases, based on
Senior Python Engineer - Remote AI Code Migration & Testing
- Mindrift
- Barcelona
- April 4
Mindrift connects specialists with project-based AI opportunities for leading tech companies, focused on ... and how much to contribute (20-30 hours per week) Each project has its own compensation level based on ... On this project, AI trainers earn up to $30 per hour equivalent Opportunity to contribute to innovative
Biology & Python Expert - Freelance AI Trainer
- Mindrift
- Barcelona
- April 4
Compensation On this project, contributors can earn up to $29 per hour equivalent, depending on their ... Please note that other projects on the platform may offer different earning levels based on their requirements ... Mindrift connects specialists with project-based AI opportunities for leading tech companies, focused on ... Compensation varies across projects depending on scope, complexity, and required expertise. ... non-trivial reasoning chains in bioinformatics, systems biology, and molecular modeling; Base problems on
Bioinformatics & Python Specialist (Contract, Part-Time)
- Mindrift
- Barcelona
- April 4
Compensation On this project, contributors can earn up to $29 per hour equivalent, depending on their ... Please note that other projects on the platform may offer different earning levels based on their requirements ... Mindrift connects specialists with project-based AI opportunities for leading tech companies, focused on ... Compensation varies across projects depending on scope, complexity, and required expertise. ... non-trivial reasoning chains in bioinformatics, systems biology, and molecular modeling; Base problems on












































































