Senior Software Engineer – Backend / Platform (3-Month Contract)

Arturia AI; Sydney; On-site; AUD 120,000 - 180,000; Full time

Job summary

Arturia AI is seeking an experienced Senior Software Engineer to join our team on an initial 3-month contract to support, maintain and extend an existing SaaS application.

This hands-on role focuses on backend systems, data integrity, reliability and scalable deployments, requiring at least 5 years of commercial software engineering experience and strong Node.js/JavaScript skills, with PostgreSQL and AWS expertise.

Qualifications

• Minimum 5+ years of commercial software engineering experience.
• Strong Node.js/JavaScript backend engineering skills.
• Deep PostgreSQL experience and data integrity focus.
• Hands-on backend role with AWS, containers and CI/CD.

Responsibilities

• Trace processing across APIs, services and workers; manage asynchronous operations.
• Design, maintain and optimise PostgreSQL databases and migrations.
• Develop reliable background processing with job ownership and retries.
• Manage releases with backward compatibility and data protection.
• Implement data versioning, provenance and cache invalidation.
• Manage AWS environments including ECS/Fargate, Docker, CloudWatch, IAM and CI/CD.
• Design and maintain end-to-end, integration and regression tests.
• Ensure secure multi-tenant access controls across the SaaS platform.

Skills

Node.js backend

JavaScript

PostgreSQL

AWS

Distributed systems

Tools

Docker

CI/CD

CloudWatch

ECS/Fargate

Job description

We are looking for an experienced Senior Software Engineer to join our team on an initial 3-month contract to support, maintain and further develop an existing SaaS application.

This is a hands-on technical role requiring a minimum of 5 years’ relevant commercial software engineering experience, with a strong focus on backend systems, data integrity, application reliability and deployment.

About the role

We are looking for an experienced Senior Software Engineer to join our team on an initial 3-month contract to support, maintain and further develop an existing SaaS application.

This is a hands-on technical role requiring a minimum of 5 years’ relevant commercial software engineering experience, with a strong focus on backend systems, data integrity, application reliability and deployment.

Key responsibilities

• Trace processing across APIs, services and workers, and manage asynchronous operations, failures and cleanup correctly

• Design, maintain and optimise PostgreSQL databases, including transactions, concurrency control, constraints, triggers, functions, indexing and safe schema migrations

• Design reliable background processing, including job ownership, ordering, retries, deduplication and recovery

• Manage application and database releases while maintaining backward compatibility and protecting existing project data

• Implement data versioning, provenance, cache reuse and invalidation strategies across application releases

• Manage AWS environments including ECS/Fargate, Docker, load balancers, CloudWatch, IAM and CI/CD

• Design and maintain end-to-end, integration and regression tests across database, background processing, concurrent and multi-user workflows

• Design and maintain secure multi-tenant access controls across the SaaS platform

About you

• Minimum 5+ years’ relevant commercial software engineering experience

• Strong Node.js / JavaScript backend engineering experience

• TypeScript experience is advantageous

• Deep PostgreSQL experience

• Strong experience with background processing and distributed systems

• Experience with backward-compatible application and database releases

• Understanding of data versioning, provenance and cache invalidation

• Practical AWS experience, including ECS/Fargate, Docker, CloudWatch, IAM and CI/CD

• Strong integration and regression testing experience

• Experience with multi-tenant SaaS security and access controls