Werkstudent Full Stack Developer Kotlin & React | Cross-Selling (w/m/d)

Werkstudent Full Stack Developer Kotlin & React | Cross-Selling (w/m/d)

Join OTTO’s engineering team as a full‑stack student developer focused on real‑time cross‑selling solutions. The role combines Kotlin, React, AWS services and modern streaming infrastructure to drive innovation in the e‑commerce domain.

Team

Our small, agile team of eight developers champions pairing, experimentation, and a passion for building high‑impact systems. We operate in a hybrid model with up to 50 % remote work, allowing you to balance on‑site presence with flexible remote hours.

Impact & Responsibilities

• Develop and evolve the cross‑selling application using Kotlin, AWS Lambda, and ECS.
• Lead the migration of legacy data to a modern streaming architecture.
• Transition the system from batch‑based to event‑driven real‑time processing.
• Build and maintain infrastructure with Infrastructure‑as‑Code tools.
• Operate the application with a “you build it, you run it” mindset.

Qualifications

• Full‑time enrolled student in Computer Science or related discipline, able to commit at least 1 year (18 h / week) starting .
• Proven programming experience in Java or Kotlin.
• Enthusiastic about AI tools and incorporating them into your work.
• German C1 (expert level) and English B2 (independent level).

Nice‑to‑have

• Experience with AWS services, Terraform.
• First‑hand experience with React and TypeScript.

Benefits

• Professional development through OTTO Academy, digital learning platforms, mentoring, and clear career pathways.
• Strong community culture with , coworking spaces, leadership at eye level, flat hierarchies, and flexible autonomy.
• Competitive hourly wage (starting 17,23 €), 15 % employee discount, 30 vacation days, and a comprehensive technical toolkit.
• Dedicated onboarding program: welcome session, talks, get‑together, and board talk.
• Hybrid working model with up to 50 % remote work, flexible hours, and full part‑time coverage during semester breaks.
• Wellness programs and health benefits, including stress management and occupational counseling.
• Mobility support: Germany ticket subsidy, free parking, e‑charging stations, and sharing bicycles.

Contact Dennis Pietruck for a direct conversation about the role.