Embedded C/C++ developer for payment application (F/M)

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Publish Date: Jan 15, 2022

Location: Courbevoie - La Défense - 92, Ile-De-France, FR

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

Embedded C/C++ developer for payment application (F/M)


The Opportunity:

WORLDLINE global provider of secure payment solutions and European leader in this market, is looking for experienced software development engineers to carry out developments on the Axis / C3 solution for both innovative new features and production support. To achieve our customers satisfaction, there is a great focus on software quality insurance of developments, testing and deliveries.

Main objective is to meet requirements and fit to architecture of the Worldline Axis™ client-server payment solution. Developments are mainly done in C / C++ and must be done keeping in mind reuse and standardization. Some additional services and components require knowledge of Python and Java languages.

Delivery provided must be documented, packaged, and tested in a production like environment to meet customer requirements and expectations.

Teams are organized into "Squads" and "Tribes" in a context of typical Scaled Agile Framework® (SAFe®) Agile way.

At Worldline, our technology addresses continuous challenge of fast growing and innovative digital payment world. We have many passionate and dedicated peers who will love to work with you!

In this exciting, challenging, and growing environment, teaming with competent developers with a DevOps mindset, your role will be to create the best possible quality of products and services with high added value. For this fulltime job position, you will join and be part of an engaged team of highly skilled people with human values.

Worldline engineering is committed to continuous improvement. Teammates are always looking for new and innovative ways to improve quality, reduce costs, increase efficiency/productivity, and increase customer satisfaction.

Worldline engineering is searching for skilled and team-focused embedded C++ developer profile to come join our Technology Office of Axis platform.


Your day-to-day responsibilities include

  • You contribute to the architecture and technical design of our solutions
  • You participate to research in feature design with your Technical Leader and Architect
  • You implement User Stories by writing high quality C++ piece of software with unit and functional tests
  • You review and help improving source code submitted as Merge Requests
  • You ensure the software quality goes up, based on transparent metrics
  • You are an active member of a SCRUM team, taking part in its rituals (daily stand-up, retro, etc.)


Signs of success

  • You deliver reliable software, meeting business needs and technical requirements
  • You deliver automated tests with your software
  • You are empowered to improve the frameworks, and ensure their stability
  • You bring new ideas on how to improve the software, tools, or processes currently in use
  • You learn quickly & often, and share knowledge willingly
  • You tackle issues that arise in any environment, be it mock-up or production
  • You set up and maintain a practical development environment
  • You contribute to successful delivery of projects and enhancements
  • You support the continuous improvement process and propose your own measures
  • You actively support and participate in the implementation of Agile, DevOps and continuous integration processes


Skills we can’t do without

  • Bachelor’s degree in software engineering or information technology
  • Five or more years of experience in embedded software development with C++
  • Good knowledge of C / C++ Unit Testing framework (CUnit, CppUnit, etc.)
  • Implementation of development best practices (clean code, Test Driven Development, etc)
  • Management of GIT configuration and version tool usage (GITLab)
  • Practice of Agile Scrum-type development methods
  • Hands-on experience with Docker
  • Experience in Agile, DevOps and Continuous Integration
  • Fluency in English and French languages. Tounsi is a plus.


Skills we’d like

  • Knowledge of developments in an embedded context.
  • Knowledge of electronic payment developments in the PCI PA-DSS context is a plus.
  • Knowledge of payment standard EMVCo, Nexo Implementation Standard (particularly Nexo FAST)
  • Knowledge of relational databases (PostgreSQL)
  • Proficiency in other programming languages (Python, Java, Kotlin)
  • Strong organization and interpersonal skills
  • Ability to pass on knowledge
  • Significant experience in problem solving and decision-making techniques
  • Flexibility and adaptability within the workplace (FlexWork)
  • Drive to continue to grow professional capabilities with ongoing training and educational opportunities
  • Autonomy, independence, and readiness to take decisions
  • Customer-centric mindset
  • Ability to work under pressure continuously
  • Team spirit, enthusiasm, resourcefulness, eagerness to learn and evolve in an international and challenging environment


More reasons to join us

In addition to joining a global leader in digital transformation, you can also expect an excellent range of benefits. These include: a rewarding salary, 32 days’ annual leave, private medical insurance, an attractive pension scheme plus many more. We also operate a flexible benefits scheme, allowing you to purchase discounted products and services.

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

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