C Developer – POS / Embedded Systems – Junior

Description

Job Summary: Opportunity at Autopass for a Junior C Developer focused on POS and embedded systems, supporting urban mobility through technology and inclusion. Key Highlights: 1. Transforming urban mobility with technology, performance, and inclusion 2. Working on critical services supporting millions of users 3. A continuous desire to learn and grow in the embedded systems field At Autopass and its group companies, we are transforming urban mobility with technology, performance, and inclusion. This is an opportunity for early-career professionals who wish to work in infrastructure, automation, cloud, and continuous delivery areas, participating in critical services that support millions of users daily. As a Junior C Developer for POS and embedded systems, you will support the development and maintenance of software operating directly on field equipment. Your main responsibilities include: Supporting implementation of features in C language for embedded devices and POS terminals. Assisting with communication to hardware modules such as cards, readers, sensors, and peripherals. Performing simple fixes, improvements, and adjustments guided by more experienced team members. Participating in bench testing, basic log analysis, and functional validation. Supporting integration with internal services using protocols defined by the company’s architecture. Collaborating with backend, QA, Support, and Operations teams to ensure proper device functionality. Creating simple documentation and supporting certification processes. **Requirements:** Basic knowledge of the C programming language. Familiarity with embedded systems, low-level programming, or applied electronics. Knowledge of basic communication protocols (TCP/UDP, Serial, or USB). Ability to interpret simple logs and error messages. Interest in learning about card validation, SAM modules, and peripheral communication. Completed or near-completion of a bachelor’s degree in technology-related fields. **Desirable (Differentiators):** Basic knowledge of POS terminals such as Pax, Gertec, Verifone, Sunmi, or transportation validators. Familiarity with embedded Linux or RTOS. Initial knowledge of gRPC, .proto contracts, or binary messages. Experience with personal projects, undergraduate theses, robotics, IoT, or technical competitions. Experience or interest in urban mobility or payment systems. **Valued Soft Skills:** A continuous desire to learn and grow in the embedded systems field. Good communication skills and openness to feedback. Collaboration and teamwork. Attention to detail and commitment to quality. Proactivity and sense of responsibility in critical environments. **Additional Information:** Work model: On-site Location: Vila Olímpia \- SP Contract type: PJ