Apprentice J2EE developer

Apply now »

Publish Date: May 10, 2022

Location: Bertrange, Luxembourg, LU

Company: worldline

About Worldline
Worldline [Euronext: WLN] is the European leader in the payments and transactional services industry and #4 player worldwide. With its global reach and its commitment to innovation, Worldline is the technology partner of choice for merchants, banks and third-party acquirers as well as public transport operators, government agencies and industrial companies in all sectors. Powered by over 20,000 employees in more than 50 countries, Worldline provides its clients with sustainable, trusted and secure solutions across the payment value chain, fostering their business growth wherever they are. Services offered by Worldline in the areas of Merchant Services; Terminals, Solutions & Services; Financial Services and Mobility & e-Transactional Services include domestic and cross-border commercial acquiring, both in-store and online, highly-secure payment transaction processing, a broad portfolio of payment terminals as well as e-ticketing and digital services in the industrial environment. In 2019 Worldline generated a proforma revenue of 5.3 billion euros. worldline.com


The Opportunity

At Worldline, our technology addresses persistent challenges of the payment world. We design and operate leading digital payment and transactional solutions that enable sustainable economic growth and reinforce trust and security in our societies. If you are a highly-skilled developer and you are looking for internship (between 4 and 6 months), then get ready to join our company. 


CETREL Securities SA is part of Worldline, established in 2006, the company provides data integration services in an Application Service Provider (ASP) mode for banking, fund administration and insurance. 


We have many hardworking and dedicated peers that would love for you to work with them. We are committed to continuous improvement. We are always looking for new and innovative ways to improve quality, reduce costs, build excellent solutions, and grow customer happiness. We would like to welcome an organized, innovative and process driven colleague to our team. 



Your day-to-day responsibilities include: 


  • You participate in the development and implementation of Web User Interfaces & Web Services.
  • You participate in the development and implementation of PL/SQL packages
  • You develop design and technical specifications
  • You ensure applications are delivered according to project timelines
  • You write and conduct unit and integration tests
  • You ensure that code adheres to strict standards for accessibility, security, object-oriented practices, and performance
  • You describe and write technical specifications
  • You gather information from different stakeholders in order to have a well analysis for the development/support
  • You participate in requirements, architecture, and design meetings



Signs of success:


  • You respect Standards & Methods
  • You think proactively 
  • You Show initiatives



Skills we can’t do without: 


  • Core Java: Java EE, Java Database Connectivity (JDBC);
  • Database: SQL, PL/SQL, Oracle 12, SQL Developer;
  • Web services technologies: XML, SOAP, REST, WSDL;
  • Application Servers: Wildfly;
  • Testing Tools: JUnit;
  • Archiving Tools: SVN, Tortoise SVN;
  • Release Tools: Maven, Jenkins, Nexus;



Skills we’d like: 


  • ORM Frameworks: Hibernate, Java Persistence API (JPA);
  • Web Application Development Frameworks: Spring, Spring security, JSP, Bootstrap;
  • Other: Birt PDF, UML, LINUX, Perl, Python, SonarQube;
  • Basic knowledge of the financial data providers (i.e. Six Financial information, Bloomberg, Reuters, WM data, Interactive data) is an asset; 
  • Analytical, conceptual reasoning  and modelling skills;
  • Ability to work quickly and accurately, on a team or individual basis;
  • Attentive to details and process oriented;
  • Demonstrates flexibility in handling work;
  • Shares knowledge;
  • Fluency in French and English or German and English (both oral and written). 



More reasons to join us:

What’s more, we really value Innovation, Cooperation, Excellence and Empowerment. These values are reflected on our daily work. This is the core of our organization. At Worldline our top priority is to engage, encourage and develop you to help you improve your potential. In fact, we have comprehensive training and development programs in place demonstrating our dedication to developing your career.


Our success comes from strong skills, new insights, diverse points of view and the energy of all women and men from Worldline. Not only do they represent the Heart and Face of our company, they are also key players in our success. We make leading our talents a major asset in the success of our business.


Worldline is 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 other applicable legally protected characteristics.


The 20 000 employees of Worldline are all different but share the same values. You can see it in the way we behave. We are curious and humble – we are learning every day, we keep things simple and everyone engaged. In our fast-moving industry, we are adaptable and life-long learners. Everyone demonstrates the same dedication to quality and efficiency. We have an entrepreneurial spirit and sense of service. Above all, we never turn our back on a challenge. These values nurture a dynamic and innovative team where everyone can develop and grow.

Job Segment: Application Developer, Database, Developer, Oracle, ERP, Technology