CareerPlan

Senior Modelling Engineer I

Runna LondonFull-time£70k2026-10-13 → 2026-10-20
Hybrid

Core

Building, testing, and delivering new training features (e.g., adjusting plans for illness, injury, weather) and experimenting to improve the training system with new algorithms and modelling approaches.

Role type

Senior IC software engineering (modelling)

Builds

Training features and algorithms for a global running training platform

Domain

Consumer fitness technology / Sports analytics

Deliverable

production ML models

Required skills

Python (object-oriented), algorithm design, quantitative methods, test automation, CI/CD, end-to-end feature delivery

Preferred skills

Large Python projects, scalable design patterns, product-focused organization experience

Technologies

Python

Responsibilities

Building and testing new training features; Experimenting with new algorithms and modelling approaches; Designing and implementing test approaches; Collaborating with coaches to deliver expertise to users; Using a data-led approach to influence algorithms; Mentoring engineers through code reviews and guidance