Senior Software Engineer — Real-time Routing & ML (Remote)

relay; Greater London; Hybrid; GBP 90,000 - 130,000; Full time

Benefits offered by this job

Equity

Private health & dental

25 days holidays

Enhanced parental leave

4 days on-site, 1 day remote

Hardware of your choice

Gym subsidies

Cycle-to-work

Friday office lunch

Uber home for late nights

Job summary

Relay is seeking a Software Engineer in London to tackle end-to-end problems from routing algorithms to real-time optimization services and intuitive operational tools. You will ship production-quality code weekly—and often daily—collaborating with top engineers, data scientists, and product leaders in a highly autonomous and impact-driven environment.

Join a team using Python, Rust and TypeScript, on GCP with BigQuery and Cloud Run, plus ML modelling and IoT-powered operations.

Qualifications

• Experience with distributed systems and scalable backend architectures.
• Strong collaboration with engineers, data scientists and product teams.
• Track record of delivering production-quality code in fast-paced environments.

Responsibilities

• Own challenging, end-to-end problems from routing to real-time optimization.
• Collaborate with engineers, data scientists and product leaders in a highly autonomous setting.
• Ship production-quality code weekly, with visible impact on growth.
• Deliver compelling product experiences powering major platforms and users.

Skills

Python

Rust

TypeScript

Flutter

Cloud Architecture

Tools

BigQuery

Cloud Run

GCP

Job description

Relay is seeking a Software Engineer in London to tackle end-to-end problems from routing algorithms to real-time optimization services and intuitive operational tools. You will ship production-quality code weekly—and often daily—collaborating with top engineers, data scientists, and product leaders in a highly autonomous and impact-driven environment.

Join a team using Python, Rust and TypeScript, on GCP with BigQuery and Cloud Run, plus ML modelling and IoT-powered operations.