Typescript/Ruby Engineer

iO Associates; London; Remote; GBP 100,000 - 125,000; Full time

Job summary

iO Associates is seeking a Senior Software Engineer with expertise in TypeScript and Ruby to join a mission-driven tech company focused on transforming the debt resolution space. This role involves working in a product-focused team to build scalable systems that impact millions, with a competitive daily rate of up to £450. Candidates will have opportunities to lead and mentor as the company grows rapidly across European markets.

Qualifications

• Extensive experience with TypeScript and Ruby.
• Strong understanding of AWS infrastructure.
• Ability to work across the full stack.

Responsibilities

• Build and scale systems that support international growth.
• Own meaningful projects and contribute to platform development.
• Lead technically and mentor junior engineers.

Skills

TypeScript

Ruby

AWS

API Design

DevOps

Tools

Node.js

Ruby on Rails

React

PostgreSQL

Redis

Job description

Title: Senior Software Engineer (TypeScript & Ruby)
Rate: Up to £450 Per Day Outside IR35 (3 months) Remote!

Are you an experienced Senior TypeScript Engineer looking for your next contract opportunity?

if so..

iO Associates are exclusively working with mission-driven technology company that's transforming how people experience financial recovery. Our client is on a journey to change the debt resolution space with a radically empathetic, AI-powered platform that puts people first, helping individuals regain control of their financial health while enabling businesses to recover debt with integrity and insight.

Following strong growth and recent acquisition by Europe's largest credit management service, they're expanding into 17 European markets. To support this exciting growth phase, our client is looking for a Senior Software Engineer to join their team!

The Opportunity:

You'll join a product-focused team working across the full stack - primarily with TypeScript, Ruby, and AWS - to build and scale systems that underpin our international growth. From API design to infrastructure, you'll own meaningful projects and contribute to a platform that impacts millions.

This is a high-impact individual contributor role with opportunities to lead technically, mentor others, and shape engineering best practices as we scale.

Their Tech Stack:

• Backend: TypeScript (Node.js), Ruby on Rails
• Frontend: TypeScript, React, Hotwire (Turbo/Stimulus)
• Infrastructure: AWS (Lambda, Fargate, Aurora, CloudFormation), PostgreSQL, Redis
• DevOps & Tooling: Serverless Framework, GitHub Actions, Terraform, Sidekiq

Our client is looking to fill this role URGENTLY and will interview this week for the right candidate!

If you're interested in this role or know someone who would be, then please apply to this role and get in touch a. methula@io associates.co. uk