Backend Engineer

At Fourthline, our mission is to fight financial crime. We help protect the global financial system by verifying millions of identities for banks, neobanks, online brokers, crypto exchanges, or insurers like N26, Trade Republic, flatexDEGIRO, Nationale Nederlanden, Qonto, Shine, Solarisbank, and more.

Having started our journey in January 2018 only, we're incredibly proud to count around 250 employees between our Amsterdam and Barcelona offices with over 50 nationalities.

Prevent financial crime by building best-in-class SaaS solutions with our talented Anti-Money Laundering (AML) and Bank Account Verification (BAV) + Qualified Electronic Signatures (QES) teams in Barcelona—we’re looking for a Backend Software Engineer II who brings solid technical expertise, a product-driven mindset, and a collaborative spirit across diverse domains and skill levels.

As a backend engineer at Fourthline, you will :

• Design, develop, maintain, and improve our microservices, and take responsibility for thorough testing and reliable deployments of your stories.
• Professionally manage your tasks, priorities and deliverables, taking joint ownership with your teammates for the sprint goals.
• Utilize your experience to contribute to our growth through lessons learned from your successes and failures.
• Take responsibility for engineering excellence and participate in architectural decision-making within your team.
• Contribute to thorough documentation—crucial for ensuring success and minimizing questions!
• Understand the entire development lifecycle and work closely with other members in squads, including Platform and QA teams.
• Employ both technical and soft skills to address challenges, recognizing that solutions often require a blend of technology-based and people-based strategies.

Emphasis on Collaboration

At Fourthline, we foster a collaborative culture informed by industry knowledge (FinTech) and deep understanding of our business objectives. You will actively participate in chapter meetings, knowledge sharing sessions and cross-discipline alignments with other teams and engineering disciplines.

Career Growth and Development

At Fourthline, we offer opportunities for learning and development, allowing you to work alongside and learn from experienced engineers. As you grow within our team, there are possibilities to grow to Senior Engineer and further (we have Staff Engineer level and beyond), with clear pathways to further your technical, problem solving and communication competencies, as well as build your knowledge of the FinTech industry.

Our Stack

Job Requirements

At Fourthline, we believe diversity enriches our culture and inspires you to do your best work. We value your unique talents and perspectives, welcoming them into a safe and inclusive working environment, to ultimately deliver the best products to our customers and society. You're welcome here. Fourthline is for everyone.

Our hiring process is designed to be equal, fair, and transparent. We welcome people from all backgrounds, ethnicities, genders, sexual orientations, ages, abilities, religions, and experiences in life. If you're excited about this role, but your experience does not align perfectly with every qualification in the job description, we encourage you to apply anyways. You may just be the right candidate for this or other roles.