Junior Offensive Security Engineer

Junior Offensive Security Engineer

About Satispay

Satispay began by rethinking the simple act of a payment to remove the friction from our daily routines. But we didn’t stop there. Today, we are building a complete financial platform designed to empower people and concretely improve their lives. By giving our 6 million users a clear, open path to pay, save, and invest, we are evolving into the definitive destination for every financial need.

What you'll be doing

As our Junior Offensive Security Engineer, you’ll be the person who supports our security team in securing our cloud infrastructure, mobile, and web applications. Here's what your day-to-day will look like:

• Penetration Testing – Perform penetration testing on mobile (iOS & Android) and web applications. Under the guidance of a senior engineer, use tools like Frida to bypass security controls and analyze app behavior at runtime.

• Code and Architectural Review – Review source code for logic flaws, collaborate with developers to implement secure design patterns, and assist in reviewing cloud infrastructure for full security coverage.

• Scripting & Automation – Develop scripts to automate repetitive testing tasks, create proof-of-concept exploits, and parse tool results to optimize testing workflows.

• Collaborate on Defense – Work closely with the rest of the Security team to test monitoring capabilities, participate in attack simulations, and improve overall detection strategies.

• Documentation and Reporting – Write technical reports of findings and document remediation steps for development teams.

Who we're looking for

We need a problem-solver who loves teamwork and gets things done. If you're curious and ready for real ownership, you'll fit in!

Does this sound like you?

• Strong Foundations – Good knowledge of information security basics, networking, web application architecture, and familiarity with common web vulnerabilities (e.g., SQL injection, XSS, IDOR, race conditions).

• Hands-on Experience – 0–2 years of experience from internships, university projects, active CTF participation, bug bounties, or personal research.

• Curious Mindset – Driven to figure out how business logic can be bypassed and understand the "why" behind each vulnerability.

• Scripting Skills – Ability to read and write code in at least one scripting language (e.g., Python) for task automation and creating simple proof-of-concepts.

• Interest in Mobile Security – Strong interest in securing Android and iOS apps, with exposure to Frida or Objection as a great starting point.

• Soft Skills – Clear communication, eagerness to learn, and proven capability of working collaboratively in a team environment.

• Bonus Points – Previous contributions to open-source security tools or published CVEs, cybersecurity certifications (e.g., eJPT, OSCP, PortSwigger), familiarity with AWS/cloud environments, or standard penetration testing tools (Burp Suite, Nmap).

CareAbout: how we support your impact

We move fast, and evolution never stops. It’s a fun ride, but it can be challenging. To make sure our people truly thrive, we’re committed to making their lives easier, both in the office and out in the world. That’s why we created CareAbout:

• ❤️ Health (Private insurance for you and your family, psychological support with Serenis, mental health workshops)

• 💰 Financial resources (Stock Option Plan, Meal vouchers, Relocation support if you’re moving countries)

• ⚙️ Growth and development (Professional development programs, Internal mobility, Language courses with Preply)

• ✈️ Flexibility (Unlimited PTO, Hybrid working policy*, Flexible working hours)

• 👨‍👩‍👧‍👦 Family (Enhanced parental leave, Additional leave for child sickness)

*We embrace three days per week in-office (Tuesday and Thursday + 1 of your choice), with the option to request extra remote time.

Salary: €38,000 - €54,000 gross per annum This range is set using objective, gender-neutral criteria for the role's core requirements. However, we do not believe in putting a ceiling on talent. The final compensation package is tailored according to your unique experience and expertise. If your skills go beyond the standard profile, apply anyway so we can discuss a package that reflects your true value.

Equal opportunity employer

At Satispay, we're proud to be an equal opportunity employer. We celebrate diversity and inclusion, welcoming individuals of all backgrounds. This opportunity is open to everyone, regardless - for instance - of race, colour, religion, sex, gender identity, sexual orientation, and national origin.

Join us in a workplace where everyone belongs!

Learn more about us

Our values and pillars aren’t just fancy words on a page - they really shape everything we do.

Explore them here.

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