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Ready to start your career with a traineeship job?
theInterna helps you discover top opportunities to gain real-world experience, develop key skills, and grow your professional network.
Whether you’re a student or graduate we provide the resources to help you succeed.
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Want to know more about traineeship jobs?
Whether you’re wondering how traineeships work, if they’re paid, or what opportunities are available, we’ve got you covered.
These programs combine hands-on training with learning, helping you build confidence and practical knowledge in your chosen field.
Explore everything you need to know about traineeship jobs!
An exciting opportunity to join a growing financial consulting company. An international and multicultural environment with the opportunity to share the adventure of growing a consulting company with us.
The Finance Controller / Analyst (Junior) will work closely with the CFOs and Partners and will join the team in charge of a client portfolio under their responsibility. Strong possibility to grow with the organization.
Connectivity Global is a fast-growing Spanish telecom startup revolutionizing how international students stay connected abroad. With our Student Connect offer, we provide affordable prepaid SIMs and eSIMs designed to help students manage their budgets while staying connected.
As we expand into the United Kingdom, we are looking for motivated, entrepreneurial students to support our market launch and business development activities. This is an exceptional opportunity to gain hands-on experience in a startup environment while shaping the growth of our international operations.
Automation & Robotics Intern – Join ADASOFT’s Automation team in Barcelona or Madrid and gain hands-on experience designing, planning, and managing industrial automation projects. You’ll work alongside experienced engineers, support client coordination, and contribute to process improvement initiatives while developing your technical and project management skills.
About the Company
GCN Group is the largest global channel network of local IT distributors, uniting members on a single platform to drive ongoing marketplace success. Our mission is to integrate and empower all members of the B2B channel through digital transformation, enabling them to compete with large international distributors, access global vendor agreements, and maximize their market reach.
This fast-growing YC-backed startup is building modern infrastructure to simplify global e-invoicing compliance. Their developer-first API helps businesses automatically generate and submit compliant invoices across multiple countries, reducing complexity and enabling seamless international operations. With a team of experienced engineers and startup operators, they’re focused on solving real-world problems at scale.
As a Graduate Back-End developer, you’ll work on the core systems that power a highly technical, API-first product. You’ll be writing clean, scalable code, contributing to architecture decisions, and working closely with the founding engineering team.
This role is ideal for someone early in their career who wants to learn fast, write meaningful code from day one, and be surrounded by a collaborative and high-calibre team in Madrid. You should be excited about building elegant solutions to messy compliance challenges and about living and growing in a vibrant European tech hub.
Design, build, and maintain backend systems and microservices
Collaborate on API development and contribute to overall product architecture
Write clean, well-tested code and participate in code reviews
Assist with scaling and performance optimisation as the platform grows
Work closely with front-end and product teams to align on technical needs
Stay up to date with backend best practices and emerging technologies
A recent graduate or early-career engineer with a degree in Computer Science or similar
Experience with modern back-end technologies
Familiar with APIs, system design, and cloud infrastructure (e.g. Docker, AWS)
A clear communicator who enjoys working in a team
Detail-oriented, eager to learn, and excited to grow fast
English Native
Excited to live and work in Madrid with a collaborative, ambitious team
Location: Madrid
Type: Full-time
Salary: Up to 1000 euros a month
Traineeship jobs are structured programs that combine learning and practical experience, helping you gain the skills needed to enter the workforce.
Students tend to (but not always) gain credits as they do the internship.
Traineeship jobs are the stepping stone to a successful career. Here’s why they’re invaluable:
At theInterna, we specialize in connecting you to traineeship jobs that align with your skills and aspirations.
Applying for traineeship jobs is simple:
With these steps, you’re set to start your traineeship journey confidently.
Sign up now to get started!
Some traineeship jobs offer stipends or salaries, while others are unpaid. On theInterna you can whether the internship is paid or not before you apply.
Absolutely! We encourage you to apply for about 5 opportunities initially which really align to your interests. It is better to have fewer but more tailored applications
Not necessarily. Many traineeship jobs are designed for beginners and focus on skill development but make sure to really demonstrate (quantitatively where possible) your skills and achievements in your CV.
Traineeship jobs come in many forms—tech, marketing, sales, customer support, engineering, and more. Some focus on creative skills, others on business or data. You can filter by field or interest when browsing listings on theInterna.
It depends on the employer. Some roles require local language skills (like Spanish or French), while others only ask for fluent English. Each listing will mention language requirements clearly, so check before applying.
Yes, you can. theInterna typically works with students in their final year or those who graduated recently. If you’ve recently completed your degree and are looking to gain hands-on experience, a traineeship is a great next step.
Yes, especially in marketing, software, and customer experience roles. Many companies now offer remote traineeships or hybrid models, allowing flexibility if you can’t relocate.
Traineeships are often structured with training modules and soft skills development, while internships tend to focus more on workplace immersion. Traineeships may also lead to qualifications or support services.
Many traineeship jobs serve as a stepping stone to a permanent role. Some companies hire top-performing trainees or extend their contracts if there’s a good fit.
Typically, you’ll need an updated CV, a short motivation letter, and any relevant academic or work references. Some roles may ask for a portfolio or language proof.
Yes, if you’re working in a country where you’re not a resident. Visa types vary by country and job duration. theInterna provides guidance or links to help with the visa process.
Most traineeships range from 20 to 40 hours per week. Full-time roles are common, but some employers offer part-time schedules, especially for students or remote placements.
By interning at a partner startup of theInterna you will be sure to get real business exposure and give you the right grounds to be able to excel when there.
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