Lead Software Engineer (m/f/d) - Berlin

Your Impact

To support our mission, we’re looking for a Technical Lead to take full ownership of our mobile, web and backend applications, drive architectural decisions, and lead delivery efforts across teams. In this role you will collaborate directly with the CTPO, the Product team, the Operations team, and external partners. You’ll play a key role in aligning system architecture with business goals and creating scalable, resilient solutions. This is a unique opportunity to leave your mark on a meaningful product while mentoring a highly skilled team.

Your Mission

• Take full technical ownership of a modern, multi-platform architecture, including:

  • Web Applications : Webshop, Customer Portal, Backoffice (Angular + Kotlin/Java + AWS Lambda)
  • Smartwatch : WearOS / Android
  • Mobile Applications : Android / iOS

• Lead and mentor a cross‑functional engineering team (backend, frontend, mobile, DevOps)

• Provide architectural guidance, technical mentorship, code reviews, and support best practices

• Develop and maintain scalable systems and software architecture with a focus on fault tolerance and performance

• Drive the design and implementation of middleware solutions to orchestrate communication between internal services, CRMs, and third‑party tools

• Manage critical third‑party integrations, such as Salesforce and Chargebee, ensuring reliable and seamless operation

• Stay hands‑on to drive implementation, remove blockers, set technical standards, and enable execution velocity

• Translate business requirements into clear technical tickets, priorities, and delivery timelines

• Collaborate closely with the CTPO, product managers, operations, and external partners

• Act as a key interface between engineering and the broader business

• Continuously improve code quality, development workflows, and infrastructure reliability

• Own and maintain documentation for technical decisions, architectural patterns, and system integrations

Your Talent

• 6+ years of experience in software engineering, including 3+ years in a technical leadership role managing cross‑functional teams (6+ developers).
• Proven success designing and scaling backend systems in cloud‑native environments such as AWS and GCP.
• Deep expertise in Kotlin and Java, with extensive hands‑on development using Spring Boot.
• Strong background in system design, microservice architecture, and scalable, distributed, event‑driven systems.
• Solid understanding of middleware, asynchronous communication, and event‑driven patterns.
• Skilled in building and managing complex integrations across third‑party APIs, internal services, and CRMs.
• Experienced with PostgreSQL and key AWS services including Lambda, SQS, EventBridge, and API Gateway.
• Proficient in DevOps practices: CI/CD pipelines, Docker, Terraform, and infrastructure‑as‑code.
• Effective at translating complex business requirements into actionable technical strategies.
• Strong track record in managing technical scope, setting engineering priorities, and aligning stakeholder expectations.
• Familiar with frontend architecture and development workflows, especially with Angular.
• Exposure to mobile development (Android/iOS) and cross‑platform fundamentals.
• Nice to have: Initial experience with AI/ML‑powered platforms and intelligent applications.

Our Offer