Lead Java Developer

Job Description
Lead Java Developer

Bucharest

This is Worldline.
We are the innovators at the heart of the payments technology industry, shaping how the world pays and gets paid. The solutions our people build today power the growth of millions of businesses tomorrow. From your local coffee shop to unicorns and international banks. From San Francisco to Auckland. We are in every corner of the world, in every part of commerce. 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
At Worldline, our technology addresses persistent challenges of the payment world. Worldline is the European leader in digital payments and #4 worldwide. We've established ourselves as a leading developer of creative software solutions for enabling the cashless society

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:

• Strong knowledge of the payment market, including credit card schemes (VISA, Mastercard), and credit card lifecycle.
• 5+ years in software development roles and ideally payments industry, degree in scientific/technical fields.
• 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 tools like GitLab CI….
• Ability to simplify complex concepts, foster team collaboration, and motivate across international environments.
• Proficiency in English is mandatory (French or German would be a plus)

Perks & Benefits
In addition to joining a global leader in payments, you can also expect an excellent range of benefits. These include a rewarding salary, leave days, an attractive pension scheme, global learning days and many more. We also have location specific benefits, varying from private medical insurance, to extended parental leave and a flexible benefits scheme, allowing you to purchase discounted products and services.

If You Join Us, You Will Enjoy

• Hybrid Working Policy
• Gift vouchers on the occasion of Christmas/Easter Holidays
• Free 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 on an exciting journey towards the next frontiers of payments technology, and we look for big thinkers, 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. With an empowering culture, strong technology and extensive training opportunities, we help you accelerate your career - wherever you decide to go. Join our global team of 18,000 innovators and shape a tomorrow that is yours to own.

Learn more about life at Worldline at

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.