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87,000+ live jobsOn-site in Barcelona·Full-time·Added 6 months ago
First posted 6 months ago, still open when we checked on 9 Oct
€60,500 - €86,250 a year
Gross, as stated in the ad.
About €3,480 - €4,700 a month after tax, or €3,510 - €5,140 under the Beckham regime.
Permanent contract
Full-time.
Blue Card threshold
Indicative — the ad doesn’t promise sponsorship.
Work in English
English is required, per the ad.
Work on-site in Barcelona
No relocation package mentioned.
Have senior-level experience
Senior-level role.
Private health insurance
Per the ad: paid by the employer, or taken through flexible pay.
Gym access
Free or discounted, per the ad.
Nice to have
Team player: You are comfortable helping your teammates, sharing your knowledge, reviewing their code and asking for reviews of your own. Not afraid of technical challenges, in fact, you are hungry for the impossible
Engineer: We're not looking for coders, we are looking for engineers, customer-centric people that understand what customer needs, and is able to propose different approaches to deal with an opportunity.
Learner: you want to improve your skills not only in the engineering field but across any other areas.
Owner: You like proposing new hypotheses and be responsible for building, deploying and validating them.
Someone who love understanding: Breaking down complex problems into basic and shareable elements and you have evolved concrete implementations to abstractions before.
Tech vision: We are looking for people with experience in React Native and a deep understanding of its under the hood mechanics. Someone that could move the needle in terms of tech, someone who can challenge our architecture and our processes to make a top-level application.
Mentor: You love to share your experience and expertise to help others grow.
Someone who have some years of experience working as a software engineer.
Someone who is comfortable with communicating in English.
Your title matters less than your mindset.
You might be mid, senior, or staff, what we care about is:
AI as a habit: you've built real AI-powered systems or workflows (not just experiments)
Proven impact: shipped projects, side projects, or contributions that made a measurable difference
Product-first thinking: you design complete experiences, not just isolated components
Speed & adaptability: you experiment, learn, and iterate fast
LLMs, skill-based agents, MCP, or other AI protocols 🤖✨
High growth, multicultural and friendly environment
Competitive ESOP plan
Alan as private health insurance
Healthy life with Wellhub (Gyms, pools, outdoor classes)
Save expenses with Cobee
Language classes
Breakfast in the office and organic fruit
Food discounts with Nora
Pet Friendly
Much more that we'll spill during the interview process!
Do you want to help us redefine how AI powers the future of Business Management software, not as an add-on, but as a core part of how people work, decide and grow?
We're looking for engineers who:
🧠 Treat AI as central to their craft
⚡ Are obsessed with building and shipping fast
🎯 Care about real impact, not hierarchy or titles
If that sounds like you, keep reading.
We're looking for a Staff/Senior React Native Engineer to help us boost the company to the next level.
Ready to be part of the challenge? 🚀
You will be part of the mobile engineering team, working closely with other talented mates. The objective of the team is provide a super smooth experience for app users.
You will ideate, craft and deploy interactions and experiences for customers. Being creative with opportunities, being smart crafting them and being realized by observing the results. And enjoying iterating them.
You will be actively participating in the definition of the objectives for the team having the customer on mind.
You will be part of the continuous improvement of our technology, infrastructure and architecture of the app.
You will be owner and accountable of the success of the team.
In this process you will be guided and helped by a buddy since first day, and a super talented team to play together.
Office-first in Barcelona & Madrid, with 20% remote flexibility
A people-first, high-trust culture built on radical candor and ownership
A multicultural team (40+ nationalities) building the next generation of business management software
If you apply, here's what to expect:
A first conversation with our Talent Acquisition Partner. It will be about comparing our expectations and making sure we match on a human level. We will also check our Engineering Rubrics (check them out, they are open!) and the salary in your position.
A second conversation with the team's Engineering Manager. This is about making sure we can work together. Here you will have a conversation about the team, their needs, your profile and how can you complement it. Expect to have a mix of a human and technical conversation.
A Live Engineering Challenge with two Factorial engineers: At Factorial, we're passionate about hiring engineers who can think clearly, communicate well, leverage the best tools, and learn very fast. In this challenge, we're not looking for a finished product, but for how you structure problems, ask questions, use technology, and reason about solutions.
One last coffee-chat with our CTO, where you can get all the answers about Factorial's culture, business vision, or anything else that interests you.
And that's it! Feel free to request any other conversation you want, with team members or to address specific concerns at any time during the process.
The whole process is remote, using videoconferencing tools!
Factorial is a Barcelona-based software company that provides an all-in-one human resources management platform for small and medium-sized businesses. Its cloud-based solution covers HR administration, payroll, time tracking, talent management, and expense management, helping companies digitize and automate their HR processes. Founded in 2016, Factorial has grown rapidly and now serves thousands of customers across Europe, the Americas, and Asia, with a workforce of over 800 employees.
Factorial's headquarters and main engineering hub are in Barcelona, making it a key player in Spain's vibrant tech ecosystem. The company has a strong international presence with offices in Mexico City, São Paulo, and other cities, and its workforce is highly diverse, with employees from over 30 nationalities. For international professionals, Factorial offers a dynamic, fast-paced startup culture, opportunities to work with a global team, and the chance to contribute to a product that is reshaping HR for SMBs worldwide. The company is known for its flat hierarchy, agile work environment, and commitment to employee growth.
Factorial is the AI for Business that knows companies, connects how work happens across the business, and turns that context into action.
Founded in Barcelona in 2016, we now have +1,700 employees serving more than 16,000 companies across 112 countries.
Factorial started with a simple idea: companies were spending too much time managing processes and not enough time doing the work they were hired to do: their best work.
But as companies grow, work gets more disconnected. More people, more tools, more information, and more time spent connecting the dots. Generic AI can answer questions, but it doesn't know your company. Every time, you have to give it the context.
Factorial is different. Because it's inside the company, it already knows how it works, including its people, processes, policies, and data. So you can ask it to do real work, from screening candidates and managing expenses to answering questions and creating reports.
AI isn't the goal. Giving people back their time is.
When work changes, so do we.
We believe in diverse talent: we welcome applicants from all backgrounds and strongly encourage people of diverse experiences and identities to apply.
We believe in inclusion: we are committed to equal opportunities and actively promote workplace inclusion of people with disabilities. If you would like to learn more about our inclusive recruitment processes, you are welcome to indicate so optionally and we will share additional information with you.
We own it: We take responsibility for every project. We make decisions, not excuses.
We learn and teach: We're dedicated to learning something new every day and, above all, share it.
We partner: Every decision is a team decision. We trust each other.
We grow fast: We act fast. We think that the worst mistake is not learning from them.
Wanna learn more about us? Check our website!
Someone who like relaxed and fun environments: We work hard and we are committed to Factorial users but we do that in a fun and relaxed atmosphere. We don't take ourselves too much seriously.
or browse Barcelona·Engineering·Mobile·Senior·Blue Card threshold·Catalonia·HR Software
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