Senior Ruby on Rails Backend Engineer | FinTech Platform

Valiant Finance; Sydney; Hybrid; AUD 140,000 - 190,000; Full time

Benefits offered by this job

Hybrid work model

Dog-friendly office

Parental leave

Company-wide events

Job summary

Valiant Finance, an Australian fintech startup, is seeking a Senior Backend Engineer to shape the platform and drive scalable backend systems.

You will design RESTful APIs, integrate with services like Salesforce, Auth0, and Cloudflare, and maintain cloud infrastructure across AWS/GCP. The role involves collaboration with Product, Design, and cross-functional teams in a remote-friendly, hybrid environment.

Qualifications

• Minimum 5 years of commercial Ruby on Rails experience.
• Experience integrating with multiple external APIs.
• Experience with PostgreSQL and database design/performance tuning.
• Experience with AWS, GCP, or Heroku.
• Experience with RSpec testing.
• Experience with Sidekiq for background jobs.
• Strong REST API design for public and private use.
• Proficiency with Jira or Linear.
• Strong written and verbal communication skills.

Responsibilities

• Designing and building RESTful APIs for front-end applications and partners.
• Integrating with external services such as Salesforce, Auth0, Cloudflare.
• Architecting solutions for high availability, security, and performance.
• Maintaining infrastructure on a major cloud provider to support growth.
• Writing well-structured, tested, and documented code.
• Collaborating with Product, Design, and other teams to refine deliverables and bring new features to life.

Skills

Ruby on Rails

API design

Database design

Cloud infrastructure

Testing (RSpec)

Background jobs (Sidekiq)

REST APIs

Documentation

Team collaboration

Communication

Tools

Jira

Linear

Job description

Valiant Finance, an Australian fintech startup, is seeking a Senior Backend Engineer to shape the platform and drive scalable backend systems.

You will design RESTful APIs, integrate with services like Salesforce, Auth0, and Cloudflare, and maintain cloud infrastructure across AWS/GCP. The role involves collaboration with Product, Design, and cross-functional teams in a remote-friendly, hybrid environment.