onsite

Principal Software Engineer Back-End - TransitionZero

Software Engineer

We're looking for a Software Engineer focused on designing and building scalable technical solutions. This lead role requires 7+ years of relevant experience.

About the role

Principal Software Engineer Back-End at TransitionZero.

Key technologies: Python.

Key Responsibilities

Design, develop and maintain scalable software systems
Write clean, well-tested and documented code
Participate in code reviews and contribute to engineering best practices
Collaborate with product and design teams to deliver features

Requirements

7+ years of relevant experience in software engineer
Experience with software design patterns and architecture
Solid understanding of data structures and algorithms

Skills

python

CompanyTransitionZero

DepartmentEngineering

LocationLondon, United Kingdom

Experience7+ years

Tenurefull-time

LevelLead

Posted July 24, 2026