Software Engineer Intern

Wallbox Chargers, S.L.; Barcelona; On-site; EUR 11,000 - 16,000; Full time

Job summary

Wallbox Chargers, S.L. is seeking a Software Engineer Intern to support production line test systems and maintain EOL software.

You'll work with firmware, hardware, and operations teams on incident resolution and data management on yield and downtime metrics. You will gain exposure to plant infrastructure, automate small tasks, and contribute to process documentation in a fast-paced shop-floor environment, under guidance from senior staff.

Qualifications

• Currently enrolled in a Bachelor's or Master's degree program in Computer Science, Software Engineering, Electronic/Industrial Engineering, or a related technical field.

Responsibilities

• Provide L1 support to production lines for EOL test station incidents: diagnose, apply documented fixes and elevate to L2/L3 when required.
• Monitor test stations and test results, detecting recurring failures, false rejects and communication issues, and reporting them to the team.
• Register, track and document incidents and their resolution in the ticketing system, helping to build and update troubleshooting guides.
• Support basic maintenance of EOL test software, such as installing updates, managing configurations and checking test sequences under supervision.
• Assist the systems team with data management, reports and dashboards on yield, failures and downtime using Excel and other analysis tools.
• Support the upkeep of operational systems (e.g., MES, ERP, SharePoint) and the traceability of test data.
• Contribute to small scripting or automation tasks that improve support efficiency.
• Collaborate in process documentation and continuous improvement initiatives on the line. Interaction with the process, production, and quality teams.
• Keep track of equipment calibration dates and certifications (UL, Eichrecht)

Skills

Python

C#

Java

C++

Node.js

JavaScript

Bash

Docker

LabVIEW

English proficiency

Education

Bachelor's or Master's degree in Computer Science, Software Engineering, Electronic/Industrial Engineering, or related technical field

Tools

SQL

Git

Job description

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.

Responsibilities

• Provide L1 support to production lines for EOL test station incidents: diagnose, apply documented fixes and elevate to L2/L3 when required.
• Monitor test stations and test results, detecting recurring failures, false rejects and communication issues, and reporting them to the team.
• Register, track and document incidents and their resolution in the ticketing system, helping to build and update troubleshooting guides.
• Support basic maintenance of EOL test software, such as installing updates, managing configurations and checking test sequences under supervision.
• Assist the systems team with data management, reports and dashboards on yield, failures and downtime using Excel and other analysis tools.
• Support the upkeep of operational systems (e.g., MES, ERP, SharePoint) and the traceability of test data.
• Contribute to small scripting or automation tasks that improve support efficiency.
• Collaborate in process documentation and continuous improvement initiatives on the line. Interaction with the process, production, and quality teams.
• Keep track of equipment calibration dates and certifications (UL, Eichrecht)

Requirements

• Currently enrolled in a Bachelor's or Master's degree program in Computer Science, Software Engineering, Electronic/Industrial Engineering, or a related technical field.
• Basic programming knowledge in at least one language such as Python, C#, Java or C++. Node.js, JavaScript, Bash shell, Docker, Python, LabVIEW are valuable.
• Advanced English
• AI: automation tools (workflows)
• Strong analytical and problem-solving skills to diagnose issues and identify process inefficiencies.
• Proficiency in the Microsoft Office Suite, particularly Excel for data analysis and PowerPoint for presentations.
• Excellent verbal and written communication skills for collaborating with cross-functional teams and production staff.
• Ability to work in a fast-paced shop-floor environment with a proactive attitude, willingness to learn and strong attention to detail.

Nice-to-Have

• Familiarity with test automation, hardware communication or industrial protocols (e.g., Modbus, CAN, serial, TCP/IP, OCPP). PLCs, HMIs, and field devices (machine vision, robots such as FANUC, etc.).
• Basic knowledge of databases and SQL, or of tools such as LabVIEW, TestStand or pytest.
• Experience with Git, Linux or Windows system administration, or basic networking.
• Interest in EV charging technology.