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.
Click below to explore job listings and take the next step!
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!
The Role
As a Sales Intern, you’ll work directly with the team to help grow occupancy and manage inbound interest from students and young professionals looking for housing. You’ll engage with potential residents, support the sales funnel, and help optimise their leasing process. Ideal for someone motivated, communicative, and eager to make an impact.
The Role
As an Administration Intern, you’ll support day-to-day business operations and play a key role in keeping internal processes organised and running smoothly. It’s a great fit for someone who’s detail-oriented, reliable, and eager to build hands-on experience in a structured startup environment.
The Role
As a Community Manager Intern, you’ll be at the heart of building and nurturing a vibrant resident experience. From onboarding new tenants to organising events and managing day-to-day communications, your work will shape the community’s culture and satisfaction. This role is ideal for someone who loves people, thrives in social environments, and is excited to grow in a fast-moving startup.
Kickstart your career in B2B tech sales with a 6-month internship at a fast-growing IT company in Malaga, specializing in infrastructure, cybersecurity, and managed services. As a Sales Development Intern, you’ll gain hands-on experience in lead generation, outreach, and CRM tools while working with a dynamic commercial team—ideal for proactive, Catalan/Spanish-speaking students eager to break into tech.
A fast-growing startup on a mission to redefine women’s health, with a focus on menopause. Using a combination of science, technology, and tailored support, the team is building holistic solutions to improve the lives of millions. With growing traction and a bold vision to become a global category leader, the company is now preparing to scale internationally.
This role is a unique opportunity for an entrepreneurial intern to support two fast-growing startups — one in creative production and one in real estate — as a Founder’s Associate Intern, gaining hands-on experience in business strategy, operations, and creative execution. Based in Barcelona, this six-month internship offers the chance to work closely with founders, contributing across marketing, logistics, client relations, and more, while building valuable insights into how startups grow from the ground up.
BioFlux fights to accelerate carbon removal.
We offer all-around consulting, applying deep market insights to support biochar producers and climate-conscious companies in their carbon removal journey. Our services range from; feedstock identification and suitability analyses, pyrolysis technology identification and matching, biochar production and application, carbon credit certification and acquisition, and overall project development.
Work with us to develop solutions that localise industrial waste treatment, decarbonise supply chains, and accelerate the transition toward energy independence.
Research potential clients and partners in climate, sustainability, and biochar markets.
Analyse client needs and map opportunities for collaboration or project development.
Support outreach initiatives, including drafting emails, proposals, and presentation materials.
Assist in developing strategies to engage clients and strengthen relationships.
Track and report on business development metrics and outcomes to support decision-making.
Collaborate with internal teams to ensure client communications are consistent and aligned with BioFlux’s mission.
We’re looking for someone who is:
Interested in economics, environmental economics, or sustainable business development.
Strong in research, analysis, and client engagement, able to understand needs and translate them into actionable strategies.
Confident in communication, able to reach out to new clients and maintain professional relationships.
Proactive, organised, and comfortable working independently in a fast-paced, mission-driven environment.
Curious about climate innovation, sustainability, and the growing biochar market.
Duration: 6–12 months, full-time
Location: Remote (Europe-based)
Compensation: Up to €1,000/month, depending on experience and profile
Gain hands-on experience in business development within the climate and sustainability sector.
Learn how to identify and engage clients, build relationships, and develop outreach strategies.
Work closely with a small, passionate team where your contributions will directly influence growth and partnerships.
Expand your professional experience in the emerging biochar and circular economy industry.
Be part of a company committed to climate justice, innovation, and measurable impact.
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.
Contact: