Lead Security Engineer

What is Finary?

At Finary, our mission is to change how money can work for you. We are building a one-stop shop for investing that gives powers back to investors. Finary allows its users to track their assets, manage their budgets, invest their money, and learn more about finance. If you’re looking for an ambitious team that’s revolutionizing an old-fashioned industry, get in touch!

Mounir launched Finary in 2021. Since then, Finary has made great strides by reaching 600.000 users. We genuinely care about user experience, performance, and ease of use. We ship cutting-edge products with touches of delight. You'll join a winning team, learn insanely, earn life-changing money, and work with other A+ players.

Why now?

A new generation of investors is emerging: an ambitious, involved workforce. Money is no longer taboo and the pension system is under tremendous pressure. At Finary, we see a world where investing empowers everybody to live the life they’ve always dreamt of. Finary exists to revolutionize the personal money management experience.

To fuel this mission, we announced in September 2025 a 25M€ series B, backed by leading investors including PayPal Ventures, Hedosophia, Y Combinator and Speedinvest. We are also backed by world-class founders like Steve Anavi & Alexandre Prot (Qonto founders), Matthieu Rouif (Photoroom), Eric Demuth (CEO of Bitpanda), Axel Weber (former Chairman of UBS and President of the German Central Bank) and Harsh Sinha (CTO at Wise).

There’s never been a more exciting time to join Finary!

What we offer

At Finary, you’ll join a team of top performers driven by excellence, ambition, and a shared mission to reinvent personal finance. We move fast, aim high, and value ownership above all. Our culture is demanding, transparent, and deeply collaborative. It’s not for everyone — but if you’re looking to raise the bar every day with equally driven teammates, this is the place to be.

Read more about our values here.

What you can expect

• A high-performing team - Work with A-players across every discipline in an environment that challenges you and helps you grow fast.

• Ownership - You’ll have freedom, responsibility, and trust from day one. We hire people for their talent, and we get out of their way.

• Impact that matters - Build a product that helps people take control of their financial future - a topic that affects everyone.

• A hybrid setup - We’re a hybrid setup company with teammates across France. We meet in person every 6 weeks in Paris.

• Competitive compensation - A package aligned with your experience and impact.

What we don’t care about

• Your degree, your school - we care about what you bring to the team.

• Ping pong tables, free laundry, or trendy perks - we focus on what truly matters.

About the role

With trust and security at the heart of our product, we’re looking for a Lead Security Engineer to take ownership of our security strategy and execution during this critical phase of growth.

You’ll be the go-to person for all things security: from infrastructure and application security to incident response, security tooling, and risk management. Working cross-functionally with Engineering, Product, and Compliance, you’ll establish a security roadmap, assess our current posture, and implement impactful improvements across our platform.

You’ll lead key initiatives such as maturing our crypto self-custody product security, improving our detection and response capabilities, and ensuring we meet financial-grade compliance expectations (e.g., DORA, PSI). Your impact will be felt company-wide as you foster a strong internal security culture, educate teams, and introduce lightweight, scalable processes.

This is a high-ownership, high-impact role. You’ll report directly to the VP of Engineering and work closely with the CEO, CPO, VP of Ops, and external security partners (e.g., Aikido, HackerOne, CrowdStrike).

You’d Be a Great Fit If You

• Have previously held roles like Lead Security Engineer, Security Engineering Manager, or Head of Security in a startup or scale-up

• Are hands-on and thrive in an IC role with real impact

• Have experience maturing an existing security program - not jus