Position Summary: We are seeking a C++ Developer with experience in payment and ticketing environments for a technological project in transportation equipment, focused on software security and robustness. Key Highlights: 1. C++ development in complex environments 2. System integration via APIs and messaging 3. Continuous code improvement and testing Overview: **C\+\+ Developer \| Large-Scale Ticketing Project** ---------------------------------------------------------------- Are you motivated to work on systems used daily by thousands of people? We are looking for a **C\+\+ Developer** with experience in payment and ticketing environments to join a technological project related to **transportation equipment** (TVMs, TVSs, validators, automatic doors), where software security, interoperability, and robustness are critical. **What will you do?** --------------- You will join a technical team developing and evolving ticketing and payment solutions, participating in: * Development in **C\+\+** in complex environments * System integration via **APIs and messaging** (REST, MQTT, WebSockets) * Continuous code improvement applying best practices (Clean Code, design patterns) * Implementation of **unit and integration tests** to ensure code quality * Collaboration in continuous integration and deployment processes **What are we looking for?** ------------------ * Minimum **3 years of experience in C\+\+ development** * Experience working with: + REST APIs, messaging (MQTT, WebSockets, etc.) + Linux environments / embedded or connected systems * Knowledge of: + **EMV**, including **EMV kernel integration** + **PCI** security standards + Transit systems (ticketing, validation, access) * **Highly desirable** * Experience in transportation / ticketing environments * Experience with: + CI/CD (Jenkins, Docker, Kubernetes) + Testing (Google Test, Mockito, etc.) + Tools such as Jira + CMake, Visual Studio Code **Work Modality** ------------------------ * **Hybrid model** (3 days office / 2 remote) * Occasional travel, primarily within Spain **What do we offer at Expleo?** -------------------------------- ### **Real Professional Growth** * Continuous training (Expleo Academy \+ partnerships with business schools) * Participation in high-impact technological projects * An environment that fosters technical improvement and specialization ### **Flexible Compensation** * Meal vouchers * Transport card * Childcare voucher (up to €1,500/year tax-exempt) * Salary tax optimization ### **Benefits** * Private health insurance (Sanitas), including family coverage * Life insurance ### **Work-Life Balance** * 24 vacation days \+ additional days at Christmas * Extra days based on seniority * Flexibility according to project needs ### **Expleo Culture** * Events, community, and corporate benefits * Discount platform * Referral program with bonuses **Why join us?** -------------------- You will work on projects where software is not just code: it is part of real systems directly impacting the mobility and experience of thousands of people. If you are interested in a solid technical environment with real challenges in C\+\+, we want to meet you. *“We are an equal opportunity employer and welcome applications from all qualified individuals regardless of race, gender, disability, religion/belief, sexual orientation, or age.”* \#LI\-CH1