Software Engineering Internship

Lenus is looking for a new Software Engineering intern at our Copenhagen Office!

Ready to advance your career while helping others achieve their full potential?

At Lenus, we’re passionate about supporting others and driving growth in our coaches' businesses and employees development, providing opportunities for everyone to thrive. Through our internship program, we’re excited to train aspiring talent and support their journey to becoming future product and business leaders.

Our internships at Lenus offer a 3-month summer experience where you’ll immerse yourself in our inclusive, growth-oriented company culture and gain real project experience alongside passionate teams across the business. Our supportive leaders will offer mentorship and collaboration opportunities to help you build skills and confidence as you start your career.

You’ll have the chance to make a meaningful impact on the business and help us achieve our mission of making the world a healthier and happier place.

Join us to make an impact, grow your career, and contribute to positive change!

The Team:

As an intern, you will be an important member of our dynamic product team, collaborating with fellow engineers, product managers, UX designers, and other functions to support key business initiatives.

Our team values accountability, collaboration, and continuous improvement, embracing diverse perspectives and backgrounds. We ensure our work focuses on quality and impact, and aligns with stakeholder expectations, while fostering an inclusive environment where everyone’s contributions are valued.

Through agile practices, structured planning, pair programming, and proactive communication, we empower engineers to take the lead and solve problems, ensuring ample guidance and support. And of course, we also prioritize fun, building strong relationships, and ensuring everyone feels their work matters.

The role:

As a Software Engineering intern at Lenus, you will have the opportunity to participate in various stages of feature development for our mobile or web applications, from early research and team discussions through to the final release.

Your day-to-day tasks will vary and may include contributing to solutions for a range of technical challenges, providing feedback and insights on designs, collaborating on technical approaches, and supporting the development, testing, and deployment of features with the team.

You will receive guidance and mentorship from one of our experienced software engineers, who will support you in learning everything you need to know, from our shared values at Lenus to the best practices surrounding software engineering. This internship is designed to provide you with hands-on experience and foundational skills that will support your growth in software engineering.

Who are we looking for:

We value diverse experiences and backgrounds and we encourage you to apply even if you don't tick all the boxes!

Basic requirements

• Pursuing a degree in Computer Science, Software Engineering, or having equivalent knowledge or experience in a related field
• Creative problem-solving skills and a desire to build something meaningful, with a collaborative and open mindset
• Ability to clearly communicate technical problems and solutions in English
• Curiosity and eagerness to learn, with enthusiasm for both personal and professional growth within a supportive environment
• Experience with or familiarity in TypeScript or JavaScript

Bonus Skills & Traits

• Familiarity with development frameworks such as React, React Native or Node.js
• Familiarity with relational databases (e.g., PostgreSQL) is beneficial
• Interest in or familiarity with software testing practices and common design patterns
• Personal projects or examples of work to showcase are welcome but not required
• Interest in joining a range of team events and social gatherings to connect with colleagues.

Your summer Experience:

• Strengthen Your Skills: Dive into learning new tools and techniques to expand your expertise
• Achieve meaningful goals: Work on real projects in product, tech and design
• Guidance & Growth: Monthly development feedback sessions and mentorship from industry leaders who will help you raise the bar on your future
• Stay active together: Optional gym classes, sports & activities, like paddle tournaments, Workout Wednesdays, run & Dip & more
• Have fun!: Join us for team events, monthly socials and company wide gatherings including our annual Lenus summer party
• Daily fuel: Our offices are set up with fruits, snack bars, and a selection of drinks
• Tools for success: A Macbook and other hardware to support you in your daily work

We'll be going through applications frequently, so if this sounds like a great opportunity for you, hit apply and our talent team will go through it and be in touch with you!

Good to know:

• Applications close: 06th December
• Internship program dates: 1st June 2025 - 1st September 2025
• Interview process:
  • Screening call with a member of our Talent Acquisition Team (Online)
  • Hiring Manager + Engineers interview (In person)

About Lenus

Lenus was founded in Denmark by Bertram Thorslund, in 2016. We are a health technology company that empowers health coaches to scale their businesses through the use of pioneering technology and our in-house business, health, and innovation expertise.

We’re inspiring a new generation of health coaches. People who have the power to move not only bodies but minds too. We are at the forefront of an industry under rapid transformation and our strategic innovations pave the path for the change we want to see. Happier and healthier people.

In 2021, Lenus received the largest series A funding round in Denmark’s history. Since then the company has grown from 5 to over 400 employees and today, Lenus is headquartered in Copenhagen, with offices in New York, London, Stockholm, Berlin, Hamburg, Madrid, Helsinki, Oslo, Toronto, Miami, Southern California & beyond.