About Unbabel

The company’s language operations platform blends advanced artificial intelligence with human editors, for fast, efficient, high-quality translations that get smarter over time. Unbabel integrates seamlessly in any channel so that agents can deliver consistent multilingual support from within their existing workflows. Making it easy for enterprises to grow into new markets and build seamless customer experiences in every corner of the world.

Based in San Francisco, California, Unbabel works with leading customer support and marketing teams at brands such as Facebook, Microsoft, Booking.com, and Under Armour to communicate effortlessly with customers around the world, no matter what language they speak. 

What’s the opportunity about?

Unbabel is looking for a curious and motivated Backend Development Intern to join our Engineering Team. As we deliver seamless, scalable translation solutions across platforms for enterprise partners, you’ll gain hands-on experience designing and building backend systems that power intelligent, multilingual workflows.

Do you want exposure to modern backend architectures, real-world APIs, and cloud infrastructure? Here’s where you can grow those skills in a supportive and collaborative engineering team.

Key Details:

• 📍 Location: Hybrid in Lisbon (at least 2x per week in the office)
• ⏳ Duration: 6 months
• 💶 Salary: €1,000/month gross
• 🗣️ Working language: English

Responsibilities

• Work with engineers to design and implement new backend features and integrations.
• Help maintain, test, and optimize our codebases.
• Collaborate to solve real problems and deliver practical solutions for our business partners.
• Participate in code reviews and team discussions to learn best practices in code quality and architecture.
• Assist with troubleshooting and debugging backend systems.
• Document your work to help improve our team’s processes.
• Learn about cloud platforms, API design, and database structures (with mentorship!).

Requirements

• Currently pursuing or recently completed a degree in Computer Science, Software Engineering, or a similar technical field, or equivalent practical experience.
• Some programming experience (Python or another language).
• Understanding of basic software engineering concepts and willingness to learn about REST APIs and system integrations.
• Interest in working with databases (e.g., SQL, NoSQL).
• Good communication skills in English.
• Collaborative mindset and motivation to ask questions and seek feedback.

Nice to Have

• Exposure to Python frameworks (FastAPI, Flask, Django, etc.).
• Familiarity with version control (Git).
• Awareness of cloud platforms (AWS, GCP, etc.), containerization (Docker), or microservices.

Benefits

• Professional Growth and Impact Opportunities: Hands-on experience delivering real features on a production platform. Mentorship from experienced engineers.
• Flexible Working hours: At Unbabel, working hours are flexible. You can adjust them as it best suits you and your work needs.
• Parking Spots: The office has a garage with 20 parking spaces for any Unbabeler to use. It works in a “first-come, first-served” way.
• Mental Health Support: An 'in-house' psychologist to support the mental well-being of all Unbabelers.
• Daily Breakfast: Every day from 8h30 am to 10h30 am, a small breakfast buffet is served in Tower Lisbon’s kitchen area.
• Dog-friendly Office: Dogs are welcome in our office. Just be aware that the dog must be sociable with humans and other dogs, and well behaved.

What to expect from our interview process?

1. Interview with Recruiter
2. Technical Interview with 2 Backend Engineers
3. Interview with 2 Engineering Managers
4. Interview with VP of Engineering

Diversity Statement

Unbabel is an Equal Opportunity Employer. We do not discriminate based on ethnicity, religion, colour, sex, gender identity, sexual orientation, age, or mental disability. Not only do we not discriminate, but we celebrate differences. The positions open at Unbabel are also intended for people with disabilities under DL no. 4/2019. If for whatever reason you need us to make reasonable adjustments and adaptations to our recruitment process, please let your recruiter know.

(We are not accepting candidates coming from recruitment agencies at this moment)