CareerPlan

Senior AI R&D Engineer – Model Training (f/m/d)

HeidelbergFull-time2026-11-05 → 2026-11-12
Hybrid

Core

Building and improving the model training pipeline for foundation models (Kolibri) used in high-stakes settings like finance and public administration.

Role type

Senior IC software engineer (model training infrastructure)

Builds

Model training pipelines, evaluation tooling, and large-scale code execution infrastructure for reinforcement learning

Domain

AI/ML infrastructure, foundation model training

Deliverable

infrastructure

Required skills

codebase navigation, refactoring, test-driven development, low coupling/high cohesion design, incremental refactoring, continuous integration, domain-driven design

Preferred skills

Python, Rust, Kubernetes, mob/pair programming

Technologies

Python, Rust, Kubernetes

Responsibilities

Optimizing training load scheduling on clusters, enabling large-scale code execution for reinforcement learning, improving evaluation codebase throughput, designing high-quality tooling and infrastructure, refactoring code for maintainability

Seniority

Senior, hands-on IC