Factorial

Hello!

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, not a feature to bolt on later
• Want to build and ship, not debate and document
• Care about whether the thing they built actually worked — not what their title says.

Ready to be part of the challenge? 🚀

At Factorial we're looking for a Product Engineer to help us build and scale our AI- Driven Operations Domain to the next level. As part of this team, which is in charge of providing tools to managers and HR managers in the areas of recruitment, performance, engagement, and trainings, you'll be at the forefront of developing tools and help to improve the way companies take care of their people, their most valuable asset.

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 Operations domain sits at the core of Factorial. This is where we build the systems that run the day-to-day reality of work for thousands of companies, systems that must be accurate, compliant and reliable.

To do this, we provide tools to managers and HR managers in the areas of time management, employee lifecycle, and compensation. But we know there is space for more! That's why we need talented people to go faster.

What are we looking for? 🎯

• You've shipped AI-powered features and know that evaluating them in production is the hard part, not building them. You think about reliability and user friction before model complexity.
• You're comfortable reviewing agentic workflows and have opinions about LLM architecture tradeoffs. Not just theoretical ones.
• You stay current: RAG patterns, agentic frameworks, what's actually working vs. what's hype and you apply that judgment to real product decisions.
• You treat AI features as hypotheses. Build, deploy, measure, adjust. You own that whole loop, not just the build part.
• You can break down non-deterministic outputs into something the rest of the team can reason about and act on.
• You’re comfortable working with Ruby on Rails & React and understand how to integrate AI models into scalable, cloud-native environments.
• You help teammates who are transitioning from deterministic to probabilistic thinking, not by lecturing, but by working through it together.
• 4+ years in software engineering, with some track record (or serious curiosity) around shipping AI features.
• You can explain a complex technical decision in English to someone who doesn't write code clearly, without condescension.

What You’ll Be Doing?

• You'll spend more time designing systems than writing syntax. That means breaking down complex tasks, defining architecture, and writing high-level prompts that instruct multi-agent systems to generate the underlying code.
• You review and validate what the agents produce. Security, scalability, structure, that responsibility sits with you, not the model.
• You'll work on orchestrating multiple AI agents running in parallel, keeping them in sync and making sure the output is coherent across the whole feature.
• There's no established playbook for a lot of this. You'll define your own workflows, experiment, and share what works because the team moves fast enough that information silos are a real risk.

How We Work 💻 (Barcelona, Madrid or A Coruña 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 schedule.

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 our team 😎

We care about people and we also offer a lot of benefits for employees:

• 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
• Nora discounts
• Free caffeine and theine
• Pet Friendly
• Much more that we'll spill during the interview process!

At Factorial, we're looking for a hands-on Engineering Manager to help us tackle our domain's challenges and ensure our product development reaches the next level. We want someone who enjoys making a real impact by working closely with the business.

As an Engineering Manager, you will be responsible for leading the development of your team while also being accountable for the health and growth of your product. 🚀

The Engineering team at large 🙌🏼

At Factorial, we have a team of over 200 Software Engineers. We look for curious, proactive people with good soft and communication skills. The last one is the key in a distributed company.

We don’t focus on a long list of skills and technologies. While our stack is Ruby on Rails for the backend and React/React Native for the clients, proficiency in these is not mandatory. We believe that good aptitudes and a hunger for learning work best!

About you 🫵🏻

1. You have managed people before and have experience guiding engineers to successful careers (ideally even above you!).
2. You have actively participated in hiring processes, bringing top talent to the organization.
3. You are comfortable cooperating with other teams and building the fundamentals of service.
4. When you disagree with a peer, you engage in a Socratic exchange, prioritizing finding a solution over winning arguments. You convince or get convinced.
5. You have 5+ years of experience working as a full-stack developer or in a similar position.
6. You have 2+ years of experience leading teams.
7. You have a deep understanding of APIs (REST, GraphQL, and similar) and can create integrations with other backend systems.
8. You believe that consistency, performance, quality, and scalability are more than buzzwords and have a deep real meaning that needs to translate into products and services.

Hi! 👋

At Factorial, we're on the lookout for a Senior Product Manager who can drive product strategy and execution in a landscape where AI isn't a feature—it's how products get built, shipped, and improved. We're not bolting AI onto existing products; we're rebuilding with the assumption that AI is already here.

The Role ✨

You'll own a key product area at Factorial with full autonomy over strategy and execution. You'll move fast while keeping the long-term vision in sight. You should be a self-starter who thrives in ambiguity and knows how to identify high-value problems before anyone else does.

Here's the thing: most PMs manage features. You'll manage outcomes—including how AI amplifies user value. You'll work with an exceptional team of designers and engineers, and you'll help shape what modern HR software looks like.

What You'll Be Doing

As a Senior Product Manager at Factorial, you will:

1. Own the product area: Define the product vision, roadmap, and key initiatives. Figure out where AI genuinely solves user problems—and where it shouldn't be forced.
2. Lead AI-informed execution: Work closely with Engineering, Design, Data, and AI teams to bring your vision to life. Use AI tools to accelerate product decisions, user research, and iteration cycles.
3. Evaluate AI impact rigorously: Build evaluation frameworks to measure when AI features actually work. Understand model limitations, hallucination risks, and what success looks like for AI-powered workflows. You're not shipping blind.
4. Manage integrations strategically: Oversee third-party integrations and partner ecosystems. Balance build-vs-integrate decisions with a clear view of how integrations amplify your product's capabilities. This isn't afterthought stuff—it's core strategy.
5. Collaborate cross-functionally: Partner with customers, Customer Success, Marketing, and Sales to deeply understand user needs and the HR space. Identify opportunities to create real value.
6. Drive impact: Own business outcomes, product success metrics, and continuous improvement. You're accountable for results.

What We're Looking For

You're likely a great fit if you:

1. Have proven experience in B2B SaaS Product Management (preferably 5+ years with at least 3 years of hands-on full-lifecycle ownership). You've shipped products, you understand Go-to-Market, and you know how to move through ambiguity.
2. Are business-driven and obsessed with creating impact. You align product strategy with business goals and user needs. You think like an entrepreneur—you can spot hidden opportunities in compliance, pricing, or workflows, and turn them into scalable value for customers and Factorial.
3. Are deeply data-driven, setting hypotheses and success metrics before each launch. You value measurable results and dig for insights when answers aren't obvious. You're resourceful with data and now, increasingly, with AI-powered analytics.
4. Understand AI's role in product strategy (this is new, and it matters). You don't need to code or do ML, but you understand LLM capabilities and limitations. You can evaluate AI features rigorously, spot risks like hallucination or bias, and know when AI genuinely improves UX versus when it's unnecessary.
5. Have a keen eye for design and user experience. You appreciate intuitive interfaces and love solving complex problems with simple, elegant solutions.
6. Possess strong communication skills: You're confident pitching, influencing, and advocating for your product vision internally and externally. You interface comfortably with senior leadership and customers.
7. Thrive in ambiguity: You're proactive, identify high-value problems, and develop actionable plans even when the path forward isn't clear.
8. Have experience working with third-party integrations and platforms. You have strong technical intuition: comfortable discussing system design, understanding database flows, and evaluating trade-offs in performance, code quality, and integrations. You don't need to code, but you speak the language of engineers.
9. Are comfortable with scaling processes and managing multiple stakeholders, proactively optimizing workflows—even beyond your immediate area of responsibility.
10. Speak fluent English (additional languages such as Spanish, French, Italian, or German are highly valued).

Bonus Points if You:

1. Have worked with HR tech or similar domains.
2. Have experience in hyper-growth environments where things move fast and change is constant.
3. Have hands-on experience evaluating or shipping AI-powered features.
4. Have familiarity with integration architectures, API design, or marketplace dynamics.
5. Have a solid technical understanding of how to bridge engineering and business.

Compensation 💰

The salary range for this position is between €75,000 (€60,000 fix + €15,000 based on performance, paid quarterly) and €87,500 (€70,000 fix + €17,500 based on performance, paid quarterly). We focus on skills and impact, not years on the clock.

How We Work 💻

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 Product team follows an office-first, flexible approach.

We work on-site several days a week (80%), 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 (20%)—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.

Perks of being part of our team 💆

We care about people and we also offer a lot of benefits for employees:

1. High growth, multicultural and friendly environment 🤝🏽
2. Continuous training and learning based on your needs 🤓
3. Alan private health insurance 🩺
4. Healthy life with Wellhub (Gyms, pools, outdoor classes) 🧘🏽‍♀️
5. Save expenses with Cobee 💰
6. Language classes with Preply 👩🏽‍🏫
7. Get the most out of your salary with Payflow

And when at the office...

1. Breakfast in the office and organic fruit 🍏
2. Company canteen and Nora discounts 🍱
3. Pet Friendly 🐶

Join Factorial, where people grow 💗

Diversity is part of our culture, we have more than 43 nationalities in our teams and we are infused in an inclusive environment for all employees and candidates. Please feel free to apply with the way it suits you better! (blind resume, identity pronouns, cover letter, etc). We do not discriminate on any aspect, in fact; Factorial encourages everyone to join us!

About us 🚀

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 across over 60 countries worldwide, we've built a diverse team that's driving change in the business management tech space. Join us as we continue our rapid growth journey! 🌎

Our Values 🫀

1. We own it: We take responsibility for every project. We make decisions, not excuses.
2. We learn and teach: We're dedicated to learning something new every day and, above all, sharing it.
3. We partner: Every decision is a team decision. We trust each other.
4. We grow fast: We act fast. We believe that the worst mistake is not learning from them

We're looking for a driven and thoughtful Senior / Staff Designer to help define and deliver a unified, AI-first system that drives real business value across complex product domains.

🎯 Responsibilities

1. Define strategic direction and bring clarity to fast-moving, ambiguous environments
2. Collaborate with leadership to evaluate opportunities and make critical product decisions
3. Guide cross-functional teams through uncertainty towards clear business and user goals
4. Shape long-term vision and execute on short- and mid-term design strategies
5. Design unified experiences that connect complex user journeys across multiple domains
6. Own large product problem spaces and consider dependencies across systems
7. Lead design initiatives from conception to launch, ensuring high alignment with user needs and business goals
8. Mentor and support less experienced designers to elevate team performance and impact

🛠️ Requirements

1. Strong business mindset; ability to connect user needs with business objectives and use data to inform decisions
2. Experience shipping or prototyping agentic AI products, with fluency in concepts such as agents, tools, context, and evaluations
3. Proven ability to blend qualitative research, direct customer conversations, and business data to drive clear product choices
4. Expertise in systemic thinking, mapping how products add and capture value in complex stakeholder ecosystems
5. High standards for design quality and craft, distinguishing between what works and what is truly well-made
6. Full professional proficiency in written and spoken English

⭐ Our Values

1. We own it: We take responsibility and make decisive actions
2. We learn and teach: We invest in continuous learning and share knowledge
3. We partner: We make decisions as a team and trust each other
4. We grow fast: We act quickly and learn from every outcome

🤗 Benefits

1. Collaborative, multicultural, and high-growth work environment
2. Private health insurance
3. Access to gym, pools, and wellness programs
4. Savings on expenses
5. Language classes
6. Office breakfasts and organic fruit
7. Exclusive discounts on meals
8. Free coffee and tea
9. Pet-friendly environment