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Product Engineering Intern (f/m/d)
Build the product surface and core workflows of Reflyne Cortex: interfaces, product logic, and user journeys for teams working with confidential company information.
Location
Remote within Germany
Employment type
Internship
Duration
3 months
Compensation
Unpaid
Eligibility
Enrolled students only
Posted
March 19, 2026
Hiring organization
Reflyne UG
Summary
Build the product surface and core workflows of Reflyne Cortex: interfaces, product logic, and user journeys for teams working with confidential company information.
Why this role matters
Cortex needs to make demanding knowledge work easier without losing trust, traceability, or control. In this role, you work close to product decisions and help turn real advisory workflows into software that feels reliable from the first click.
What you will work on
- Build frontend and backend components for Reflyne Cortex
- Translate research, document review, and team workflows into clear product interactions
- Implement states for loading, empty, error, and success scenarios
- Work with the founding team to validate features against concrete customer problems
- Document product and engineering decisions so the system stays maintainable
What you will learn
- How early B2B SaaS features move from problem understanding to shipped product
- How to build software for sensitive workflows where reliability matters
- How product, design, engineering, and customer context connect in a small team
What you should bring
- Enrolled in computer science, software engineering, or a related field
- Practical experience with web development or product engineering
- Structured working style and interest in reliable B2B software
- Clear communication and ownership
Internship details
This internship is fully remote within Germany. It is limited to three months, unpaid, and intended only for enrolled students who can complete it as a mandatory internship or as a voluntary study-related orientation internship. You work close to the founding team and get realistic exposure to product building, customer work, and operating decisions.
Apply for this role
This role can be applied to directly on this page. No login is required. Submit your information and a PDF resume to the Reflyne team.
This internship is fully remote within Germany. It is limited to three months, unpaid, and intended only for enrolled students who can complete it as a mandatory internship or as a voluntary study-related orientation internship. You work close to the founding team and get realistic exposure to product building, customer work, and operating decisions.