At Factorial, we're on the hunt for a skilled Application Security Engineer to join our Security Team. We need your expertise to proactively hunt for vulnerabilities and strengthen our defenses against cyber threats. If you have a passion for ethical hacking and want to make an impact in a dynamic tech environment, we'd love to hear from you!
Ready to be part of the challenge? 🚀
Security at Factorial works side by side with Product and Engineering to help a fast-moving, AI-native company ship without losing control of risk. Our mission is to protect Factorial and our customers while making security a practical part of how software is designed, built, tested, and operated.
The work goes far beyond finding vulnerabilities: we test real product surfaces, help teams fix issues properly, and turn repeated security needs into guardrails, automation, and CI/CD controls that developers can use every day. AI is part of Factorial’s culture, product, and way of working from day one, so Security also helps define how teams use agents, LLMs, tools, and company data safely at scale, while actively challenging those systems with an attacker mindset.
It’s a team for people who want to keep learning, move across different security problems, and build security that can keep up with the speed of the company.
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.
The salary range for this position is between 40.000 - 55.000€ base + 7-10%variable based on performance payed quarterly + ESOP plan.
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 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.
The whole process is remote, using videoconferencing tools!
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.
Wanna learn more about us? Check our website!
The business software to manage your whole team.
With over 14.000 clients worldwide in more than 95 countries, Factorial is one of the leading business management softwares for SMEs. We provide intuitive solutions that automate and centralize administrative tasks to provide insights and help your business run smoothly.
Factorial was founded in 2016 in Barcelona and experienced quick growth due to the fact that so many businesses face the same challenge: wasting time on never-ending manual tasks. A few years later, in 2022, Factorial became a Unicorn, propelling us forward to continue on our mission of providing your business with a one-stop-shop solution for all people processes.
Factorial offers solutions like time management, talent management, recruitment, expenses, analytics, document management to name a few. Our all-in-one, user friendly platform makes it easier for businesses to focus on matters, the people within it.
