Strands is a leading fintech company at the forefront of innovation in the financial industry. Our cutting‑edge solutions empower banks and financial institutions to deliver personalized and intelligent banking experiences.

Our products are fully embedded with Artificial Intelligence and Machine Learning capabilities, giving you the opportunity to work on impactful and innovative technologies from day one.

Since 2020, we have been part of the CRIF group, a general leader in the financial sector. This means we combine the agility of a startup with the stability and scale of an international company.

ABOUT THE INTERNSHIP We are looking for

Software Developer Interns to join our team in Barcelona.

This internship is a great opportunity for recent graduates or final‑year students to gain hands‑on experience working on real fintech products within an international and collaborative environment.

You will be part of a development team contributing to the design, implementation, and improvement of backend components of our products.

What you will do

Support the design and development of backend services and applications

Collaborate with the team to build and maintain

Java‑based solutions

Contribute to the development of

REST APIs and microservices

Assist in integrating software components within a product environment

Work with databases and help implement data processing solutions

Participate in testing, debugging, and performance improvement tasks

Learn and contribute within an

Agile and collaborative team

What we are looking for

Final‑year student or recent graduate in

Computer Science, Engineering, or similar

Basic knowledge of

Java, Python,

or other object‑oriented programming languages

Understanding of backend development concepts

(APIs,



databases, etc.)

Familiarity with

SQL or relational databases is a plus

Interest in learning about microservices, cloud, and modern architectures

Strong willingness to learn and grow in a professional environment

Fluency in

English

Nice to have (not required)

Knowledge of

Spring Boot or similar frameworks

Exposure to

Git, Maven, or development tools (IntelliJ, VS Code)

Basic understanding of

CI/CD or cloud environments (AWS/Azure)

We are looking for

Quality Assurance Interns to join our team in Barcelona.

What you will do

Collaborate with Product owners and Developers to understand the requirements and write extensive test cases for the application

Report issues found within the product

Write backend automated tests using our framework (Java + RestAssured)

Write UI automated tests using our framework (Playwright + Typescript)

Learn and contribute within an

Agile and collaborative team

What we are looking for

Final‑year student or recent graduate in

Computer Science, Engineering, or similar

Basic understanding of backend development concepts

(APIs, databases, etc.)

Familiarity with

SQL or relational databases is a plus

Strong willingness to learn and grow in a professional environment

Fluency in

English

Nice to have (not required)

Exposure to

Git, Maven, or development tools (IntelliJ, VS Code)

Basic understanding of

CI/CD or cloud environments (AWS/Azure)

You’ll love it because you will get...

Hands‑on experience in a real product environment

Mentorship and learning from experienced engineers A collaborative, international, and dynamic team

Opportunity to grow within the company

Don’t hesitate to apply even if you are not sure to cover all requirements, we would love to see your profile!

📌 Software Engineer/Quality Assurance Intern (Madrid)
🏢 Strands
📍 Madrid