QA & SECURITY ENGINEER (M/F)

Zagreb
Stalni radni odnos
Puno radno vrijeme

Prije 1 mjesec
Jednostavna prijava

We’re growing fast and pushing boundaries across the EU. What began as a local Croatian idea has evolved into one of the leading European fintech platforms that brings a wide range of financial services to millions of users. Driven by innovation and a clear vision, we keep expanding into new markets, building new features, and proving that great ideas can travel far. From everyday payments and money transfers to Aircash Mastercard, we make managing money easy, wherever life takes you.We’re not just a fintech. We’re a team that mixes serious tech with just the right amount of fun. The ones who challenge complexity and find smarter ways to get things done.Different backgrounds, one shared goal: make everyday payments faster and more effortless.No forms, no nonsense. Just freedom at your fingertips.We are looking for a QA & Security Engineer with 3–5 years of experience to join our team. In this role, you will ensure the quality, performance, and security of our mobile (iOS/Android) applications and backend (.NET, C#) through manual QA and security testing, working closely with developers, product owners, and QA colleagues.Key Resposibilities:

Perform manual testing of mobile applications (iOS/Android) and backend systems, including API and SQL testing, to ensure functionality, performance, and data integrity
Create, execute, and maintain test cases and test plans, analyze results, and report bugs using tools such as JIRA
Plan and conduct security testing activities including vulnerability assessments, penetration testing, and DAST
Test authentication, authorization, and access controls and identify security vulnerabilities with remediation recommendations
Execute load and stress testing to assess system resilience and performance risks
Use security testing tools such as Burp Suite, Frida, OWASP ZAP, and similar
Collaborate with developers and cross-functional teams to improve product quality and integrate security testing into the SDLC/CI/CD processes

Qualifications you bring:

3–5 years of experience in manual QA testing, particularly for mobile (iOS/Android), backend, and API testing, including API tools (e.g. Postman) and SQL validation
Hands-on experience or solid understanding of security testing, including vulnerability assessments, penetration testing, DAST methodologies, OWASP Top 10 vulnerabilities, and tools such as Burp Suite, Frida, or OWASP ZAP
Basic knowledge of programming or scripting (e.g. Python, JavaScript), version control (GitHub/Azure DevOps), and authentication/authorization testing
Experience or interest in test automation, CI/CD pipelines, performance testing tools (e.g. JMeter, k6, Locust), and mobile application security testing is a plus
Security certifications, fintech experience, or familiarity with compliance frameworks (PCI DSS, ISO 27001, GDPR) are an advantage
Strong analytical skills, attention to detail, and ability to collaborate with cross-functional teams

What's in it for you:Innovation drives us, and we never stop asking “what’s next?”.And because great work deserves great perks, here’s what you can expect from day one:

Growth isn’t a buzzword here. You’ll have access to real learning opportunities, both inside and outside the company
Open feedback is part of our culture; we grow by listening, learning and sharing with each other
Tasty, freshly prepared lunches every day, with options to suit different tastes and preferences
Start your day off right — coffee, tea, fresh fruit, and snacks are waiting for you every morning in the kitchen
Annual health check-ups to help you take care of your health without extra hassle
A fully covered Multisport card and sports activities like padel to make staying active easy and enjoyable
Christmas and Easter bonuses that bring a little extra ease to the holiday season
For parents, extra support and time off for those milestone moments — from baby bonuses to the first days of kindergarten or school
Extra vacation days to give you more time to unwind, recharge and do what you enjoy most

Step into a role where your ideas make an impact, your work has meaning, and every day brings something new to build or improve.

Aircash