Careers

Principal Machine Learning Engineer – Mobility (all genders)

Company profile

Our client is an international group of companies specialising in e-commerce infrastructure and order management. The position is based in Kassel, with a distributed team setup with asynchronous communication. This is a permanent, full-time position.

You will work on Mobility, focusing on data-driven products, modern pipelines and quality assurance throughout the lifecycle. The team values structured planning, transparent prioritisation and pragmatic implementation, as well as security by design and data protection compliance.

Your responsibilities

  • You take responsibility in the mobility environment and deliver measurable results – from planning to stable operation.
  • They analyze professional and technical requirements, translate them into implementable user stories/epics and coordinate dependencies transparently with all stakeholders.
  • They consistently implement observability (logging, metrics, tracing), derive concrete improvements from incidents and sustainably reduce error classes (RCA/problem management).
  • They optimize performance, costs and scaling, evaluate technical options and document architectural decisions in an understandable and audit-ready manner.
  • They drive refactoring and technical modernization, reduce technical debt and improve the developer experience through pragmatic standards and tooling.
  • They automate build, test and deployment (CI/CD) processes and continuously improve team delivery capability, release stability and time-to-market.
  • They work closely with product, security, data and operations to ensure that data protection, compliance and security requirements are taken into account at an early stage.
  • They create comprehensible documentation, promote knowledge exchange (pairing, reviews, brown bags) and support teammates in onboarding.
  • They take over end-to-end ownership for features or services – from requirements reception to design/implementation to stable transfer to productive operation.

Your profile

  • They bring relevant experience for mobility and can lead complex projects into the implementation in a structured manner.
  • Very good knowledge of German or English in words and writing as well as the ability to work effectively even in distributed teams.
  • Practice with modern toolchains (Git, CI/CD, Testing) as well as the willingness to set standards and improve the quality in the team measurably.
  • Team-oriented work in cross-functional setups; you provide constructive feedback, share knowledge and actively contribute to the development of the team.
  • Structured, self-responsible working method with an ownership mentality – you prioritize meaningfully, communicate risks early and deliver reliably.
  • Experience in cloud/container environments and a solid understanding of operations, monitoring and security fundamentals in distributed systems.
  • Strong communication and moderation capability to clarify requirements, involve stakeholders and communicate technical topics in an understandable way.
  • Very good understanding of software architecture, interfaces (API design) and data models as well as the ability to justify technical decisions in a comprehensible way.

Your Benefits

  • 30 days of vacation (or comparable) as well as additional benefits around health, wellbeing and ergonomic work in the home office.
  • Full-time permanent employment with a long-term perspective, clear responsibilities and a reliable setup for remote collaboration.
  • High home office flexibility (remote/hybrid) including modern hardware equipment as well as professional toolchain for communication, planning and delivery.
  • Flexible working hours and an environment that combines results orientation with sustainable work-life balance – including transparent goals and realistic planning.
  • Team events and exchange formats (remote or on site) to sustainably promote cooperation, culture and knowledge transfer.
  • Short decision-making processes, a high level of personal responsibility and the opportunity to design topics with real impact – instead of just working through tickets.
  • Further education budget for trainings, certifications and conferences so that you can continuously expand your role in terms of expertise and methodology.
  • Attractive compensation package with additional benefits and – depending on the role – bonus/premium components; transparent salary bands are lived practice.

Apply now

Is this the role you are looking for? We look forward to receiving your complete application, including a cover letter, CV and relevant references and certificates. Please include your salary expectations and earliest available start date.

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