Mid/Senior Software Engineer - Back Office Team

• Collaborate closely with Product Managers and Designers to build user-centric, maintainable solutions.
• Develop features across the full stack (frontend/backend).
• Participate in code reviews, pair programming, and team rituals to maintain high engineering standards.
• Take ownership of tasks and deliver independently or in small groups, with growing autonomy.
• Debug production issues and contribute to the stability and performance of the platform.
• Work in agile teams with clear priorities and a shared roadmap.
• Learn continuously and contribute to team knowledge-sharing sessions.
• Contribute to planning, estimation, and retrospectives.

• Experience with at least one modern backend language or framework (e.g., Ruby, Python, Node).
• Good experience with React, JavaScript, or TypeScript on the frontend.
• Ability to collaborate in English (spoken and written) across cross-functional teams.
• A strong sense of ownership and a mindset focused on outcomes, not just delivery.
• Pragmatic approach - knowing when to ship fast and when to raise the quality bar.
• Team player who thrives in a feedback-driven, transparent culture.

At Factorial, we don't evaluate you by the years of experience you have; we assess your knowledge and skills. Our Career Path framework defines expectations for each level and provides transparent salary ranges discussed during the first interview. Your daily life with us

You'll start with a 2-week onboarding period, where you will:

• Learn about Factorial, our product, our team, and our clients.
• Pair with each member of the team at least once to see their current initiatives.
• Solve low-stakes bug tickets or quick wins.
• Commit early and often, thanks to our dev environment.
• Be fully integrated into the team's rituals from day 1.

You will be a Product Engineer, taking ownership of big initiatives, interested in outcomes, and working with your team to establish goals and plan a quarterly roadmap.

You will participate in customer calls to learn about their pain points and needs, review code daily and receive feedback, and help mentor junior team members. How We Work

We follow an office-first, flexible approach (80-20%). Work on-site several days a week in our Barcelona HQ (or Madrid office) while allowing flexibility for deep work and personal balance. Benefits

• Save expenses with Cobee and receive salary in advance with Payflow.
• TaxDown to simplify your taxes and maximize savings.
• Healthy life with Gympass and Alan private health insurance.
• Language classes with Yolk Academy and Factorial Language exchange.
• Syra and Apeteat discounts.
• Breakfast in the office, organic fruit, and free caffeine and theine.
• Flexible schedules, pet-friendly, and no dress code.

About Factorial

Factorial is an innovative Business Management Software solution designed to streamline company processes for small and medium-sized enterprises. Founded in 2016, our mission is to help companies automate workflows, centralize people data, and make better business decisions. With customers in over 60 countries worldwide, we drive change in the business-management tech space. Our Values

• We own it: we take responsibility and act.
• We learn & teach: knowledge grows when shared.
• We partner: collaboration is our default mode.
• We grow fast: we move quickly, learn from mistakes, and iterate.

The hiring process

• First conversation with Talent Acquisition - aligning expectations and checking engineering rubrics and salary.
• Second conversation with Engineering Manager - discussing team fit and technical fit.
• Live Engineering Challenge with two Factorial engineers - assess problem-solving and communication.Final coffee-chat with the CTO - cultural fit and business vision.
• Optional additional conversations with team members.