Senior Software Engineer

Present in 96 countries, we are dedicated to changing the way the world uses energy through advanced electric vehicle charging and energy management systems. We have our headquarters in Barcelona and manufacturing facilities in Spain (Barcelona) and the US (Arlington, Texas). We are rapidly becoming a leading company in the market.

In 2021, we were listed on the New York Stock Exchange (NYSE WBX), allowing us to garner acclaim and win prestigious design awards (the iF Design Award, Good Design Award, and Red Dot Design Award).

In 2022, we acquired ARES (an electronics assembly company) and COIL (an installer of turnkey EV charging solutions). One year later, in 2023, we acquired ABL, the leading German EV charger manufacturer, which has allowed us to strengthen our presence in Europe.

Get in charge with Wallbox!

ABOUT THE ROLE

The Software Engineer Intern interacts regularly with production line operators and supervisors, EOL and test engineers, firmware and hardware engineers, system analysts and operations managers to resolve incidents and support the maintenance and optimization of test and operational systems. They occasionally engage with external technical support, equipment suppliers or software vendors under the guidance of senior staff to address basic system requirements. These interactions occur at a junior level, focusing on providing technical support on the shop floor while gaining exposure to the company's plant infrastructure.

Key Responsibilities

• Design, develop and maintain EOL test software and automated test sequences for production lines.
• Develop tools to facilitate and standardize the integration of new tests.
• Integrate test benches with instruments, PLCs, sensors, power equipment and the device under test (DUT) through industrial and communication protocols.
• Ensure traceability and data integrity by connecting test systems with MES, ERP and databases; build dashboards and reports on yield, failures and cycle times.
• Analyze test results and line performance to detect root causes, reduce false failures and improve first-pass yield and test time.
• Define and apply best practices for code quality, versioning, testing, CI/CD and deployment to the shop floor.
• Provide support for production incidents, minimizing line downtime.
• Collaborate in the design and industrialization of new test stations and in the validation of new product introductions (NPI).
• Document test procedures, architectures and maintenance guidelines.

Requirements

• Bachelor's or Master's degree in Computer Science, Software Engineering, Electronic/Industrial Engineering, or a related technical field.
• Advanced level of English.
• Minimum of 5 years of professional experience in software development, including design and architecture, preferably in manufacturing, test automation or industrial environments.
• Knowledge of Industrial OT/IT networks (PROFINET, MQTT).
• Advanced in at least one major programming language such as Python, C#, Java or C++.
• Experience with GitLab and GitHub.
• Keep equipment calibration and certification dates up to date (UL, Eichrecht).
• Proven experience developing test automation, data acquisition or control software for production lines or EOL test systems.
• Solid knowledge of communication protocols and interfaces (e.g., Modbus, CAN, serial, TCP/IP, OCPP) and of working with instrumentation and hardware.
• Experience with AI and automation tools (workflows).
• Strong foundations in data structures, algorithms, databases and developing scalable, reliable systems.
• Exceptional communication and collaboration skills with a demonstrated ability to mentor junior team members and work alongside shop-floor teams.

Nice-to-Have

• Experience with National Instruments hardware and software (LabVIEW, DAQs, etc.).
• Knowledge of PLCs, industrial automation and MES/traceability systems.
• Experience with Functional Circuit Testing (FCT) or In-Circuit Testing (ICT) would also be valuable.
• Experience with EV charging technology and relevant standards (e.g., IEC 61851, safety tests such as insulation, ground continuity, RCD).
• Familiarity with manufacturing quality methodologies (Lean, Six Sigma, SPC, ISO 9001/IATF 16949).
• Experience with cloud-native and containerization tools like AWS, Docker or Kubernetes, and with data analysis/visualization tools.
• Professional certifications from major providers such as Microsoft, Oracle or Cisco.
• Proven track record of contributing to open-source projects or building a diverse technical portfolio.