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• Junior Software Engineer - Infrastructure Team

• Permanent
• Full time
• €30,000
• Barcelona, CT, Spain

Hello!

At Factorial we're looking for a Junior Software Engineer to join our Platform Domain and help us boost our wider organisation to the next level.

Since you'll be taking AI-generated applications and prototypes to production, you will interact with a very dynamic stack. You will work with modern web frameworks (like Next.js and TypeScript), backend tools, and foundational cloud infrastructure. It is the ultimate playground to learn how apps are built, deployed, secured, and maintained.

Are you ready to be part of one of the most enabling teams? 🚀

About the team 👥

Our Engineering team is the engine behind Factorial, crafting the tech that makes HR simple, fast, and reliable for thousands of companies. If you love solving hard problems and want to build something that truly matters, come build it with us.

We're a team of 200+ Product Engineers building Business Management solution that actually works for the people using it. Our core stack is Ruby on Rails and React but the interesting work right now is what we're building on top of that: agentic workflows, LLM-integrated features, systems that behave probabilistically rather than deterministically.

The Enablement sub-squad is a brand-new, high-impact initiative within the Platform/Infrastructure team. As our company scales past 1,700 people, we are seeing an explosion of creativity from non-product teams—like Marketing, Sales, Partnerships, and the wider org. They are coming up with awesome ideas and building prototypes using AI for dashboards, websites, and tooling for their daily operations.

But sometimes, they lack the technical knowledge to get these applications production-ready. That’s where you come in! You will work closely with the Infrastructure team (acting as a bridge rather than a traditional full member) to support these non-product teams, turning their great ideas into fully deployed, stable internal products.

What are we looking for? 🧙

• We are looking for a person who loves to think about the user & create awesome solutions to solve problems and know tech is only a tool to achieve this goal.

• We are looking for a team player and great communicator, a person who is comfortable helping non-technical teammates, translating their awesome ideas into stable solutions, and raising the hand first when anyone needs help.

• A true owner with a critical eye. We are looking for a person who likes proposing new things, taking an AI-generated prototype, and being responsible for building, deploying, and validating it for real-world daily operations.

• Entrepreneurial mindset even if you didn't found your own company, having this passion is crucial to join our team. Things will move fast, priorities might shift based on organizational needs, and you have to be happy working at light speed.

• A hunger to grow: This role is a massive launchpad for your career. We are looking for someone eager to learn and evolve. Depending on your craft and interests, in a year your growth path could lead you to become a DevOps Engineer in the Enablement team, a Software Engineer in Revenue Operations or Growth, or a Product Engineer!

How We Work 💻 (Barcelona or Madrid Office)

At Factorial, we believe the best products are built when people come together, in person to collaborate, challenge ideas, and move fast. That’s why our Engineering Teams follows an office-first, flexible approach.

We work on-site several days a week, using that time to connect, align, and innovate as a team. However, we also understand the importance of focus and flexibility, so we support remote work when it makes sense - whether for deep work, personal needs, or just a change of scenery.

This balance helps us stay agile, creative, and closely connected, while giving everyone the space to do their best work.


At Factorial we don't evaluate you by years of experience but by your knowledge and skills.

We use our Career Path with a rubric framework where we define what is expected for each experience level and skill. This framework allows you to know your current level and what you need to keep growing. We love transparency, so our Career Path includes the salaries for each level, which we share during the first interview to ensure alignment.

Our Hiring Process

1. Intro Call → Chat with our Talent Partner about your journey and goals.

2. Hiring Manager Interview → Deep dive into your product mindset, teamwork, and problem-solving.

3. Live Challenge → A collaborative technical exercise based on real-life problems.

4. Final Coffee Chat → A relaxed conversation with our CTO & VP of Engineering to explore our vision, culture, and your growth.

The whole process is remote, using videoconferencing tools!

About Factorial 🚀

At Factorial, we’re building the leading AI Business Management Software for companies of all sizes. Our platform centralizes key workflows across HR, Finance, Talent, Operations, and IT, freeing teams from manual processes so they can focus on what really matters: leading, growing, and taking care of their people.With over 1,500 employees across Europe, Asia, Africa, and America. We are one of Europe’s fastest-growing SaaS companies, proudly headquartered in Barcelona. If you're excited to shape the future of business management technology, we’d love to meet you.

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.

Our Values

• 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!

Perks of being part of Factorial 😎

• High growth, multicultural and friendly environment

• 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!