Java Technical Lead

 Bucharest, Romania

This is Worldline.

Worldline helps businesses of all shapes and sizes to accelerate their growth journey - quickly, simply, and securely. We are the innovators at the heart of the payments technology industry, shaping how the world pays and gets paid. Our technology powers the growth of millions of businesses across 5 continents. And just as we help our customers accelerate their business, we are committed to helping our people accelerate their careers. Together, we shape the evolution.

The Opportunity

If you are passionate about mentoring developers and shaping the future of technology, we want to hear from you!

The Core Foundation & Integration Tribe (CFI) implements and delivers the Issuing core applications, from Card Issuing lifecycle to Transactions clearing & settlement. With over 150 million cards and 1.16 billion monthly transactions, our platforms operate at the forefront of capacity and performance.

We are now seeking a visionary Tech Lead to drive our strategic product transformation and help us build scalable, secure and innovative solutions.

As Tech Lead, you will integrate into a diverse, agile, and collaborative cross-cultural team consisting of business analysts, fellow tech leads, developers, and testers. You will play a pivotal role by exploring and defining technical solutions, mentoring team members, guiding the architecture and evolution of our applications to ensure robustness, scalability and future readiness.

Day-to-Day Responsibilities​

• Architect and develop applications leveraging modern frameworks and cloud platforms.


• Define technological choices, best practices, and ensure secure, maintainable code.


• Conduct code reviews, oversee CI/CD processes, and support technical design decisions to deliver high-quality, scalable issuing payment solutions.


• Promote team skills development through training, knowledge sharing, and technical mentorship.


• Collaborate with internal teams to align on feature development and system improvements.


• Optimize performance, security, and cloud cost efficiency of applications.

Who Are We Looking For

We look for big thinkers. People who can drive positive change, step up and show what’s next – people with passion, can-do attitude and a hunger to learn and grow. In practice this means:

• Degree in scientific fields, 5+ years in IT and payments industry.


• Strong knowledge of the payment market, including credit card schemes (VISA, Mastercard), and credit card lifecycle.


• Expertise in requirement engineering, solution design, and analytical approach; Scrum experience is a plus.


• Technical proficiency in Java, Spring Boot, Angular, Kubernetes, REST, MySQL, PostgreSQL, CI/CD, GitLab


• Ability to simplify complex concepts, foster team collaboration, and motivate across international environments.


• Demonstrated problem-solving skills, innovation focus, and leadership talent to guide development teams effectively and foster continuous improvement.


• Excellent written and spoken English (C1); additional languages (French, German, Italian) are appreciated.

Perks & Benefits

At Worldline you’ll get the chance to be at the heart of the global payments technology industry and shape how the world pays and gets paid. On top of that, you will also:

• Hybrid Working Policy


• Gift vouchers on the occasion of Christmas/Easter Holidays


• Private medical services


• 21 vacation days/year


• Referral bonuses for new hires recommended by you


• WFH & Flexible Working Hours


• Full access to the “Learning” platform

Shape the evolution.

We are pushing towards the next frontiers of payments technology, and we look for big thinkers to join our journey. People with passion, can-do attitude and a hunger to learn and grow. Here you’ll work with ambitious colleagues from around the world, take on unique challenges as a team, and make a real impact on the society. And with our empowering culture, strong technology and extensive training opportunities, we help you accelerate your career. Wherever you decide to go. Join our global team of over 18,000 innovators across 40+ countries, and shape a tomorrow that is yours to own.

Learn more about life at Worldline at jobs.worldline.com

We are proud to be an Equal Opportunity employer. We do not discriminate based upon race, religion, color, national origin, sex (including pregnancy, childbirth, or related medical conditions), sexual orientation, gender identity, gender expression, age, status as an individual with a disability, or any applicable legally protected characteristics.

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