Senior Ruby Developer - 3 month contract - Fully remote

We’re working with a rapidly scaling tech company that’s looking for a Senior Ruby Developer to come in and make an immediate impact on an initial 3‑month contract, with scope for extension.

This is a fully remote engagement and suits someone who can operate independently from day one.

The Role
You’ll be brought in to optimise an existing Ruby on Rails application, with a strong focus on:

Identifying performance bottlenecks across the application and infrastructure
Improving scalability, reliability, and overall system efficiency
Working with AWS-based systems in a production environment
Making meaningful architectural and performance improvements as the business continues to scale rapidly
This is a hands-on role with real ownership, not just delivery.

What We’re Looking For

Expert-level Ruby on Rails experience
Strong background working with AWS environments
Proven experience scaling applications at significant volume
Track record of performance optimisation and system improvements
A self-starter who can stand alone, take ownership, and deliver quickly
The Details

Contract length: 3 months (high likelihood of extension)
Location: Fully remote
Start: ASAP
Level: Senior / Independent contributor
If you’re a Senior Ruby Developer who enjoys diving into existing systems, uncovering bottlenecks, and making things faster, cleaner, and more scalable — this could be an ideal contract