Senior Serverless Backend Engineer – APIs & Cloud

Intaxio Payroll Pty Ltd; Canberra; On-site; AUD 120,000 - 160,000; Full time

Job summary

Intaxio Payroll Pty Ltd in Canberra is seeking a hands-on software engineer who works across backend APIs, cloud infrastructure and web applications, with a focus on serverless backend systems and integrations.

You will design, develop and operate production software, collaborating with product and compliance specialists to turn complex regulatory requirements into reliable solutions. A strong emphasis on practical implementation over architecture is expected.

Qualifications

• Bachelor’s degree or higher in Computer Science, Software Engineering, Information Technology or a closely related discipline.
• At least five years of professional software development experience.
• Strong commercial experience developing software using Node.js and TypeScript.
• Demonstrated experience designing, developing and maintaining APIs and distributed backend services.
• Hands-on experience designing and implementing AWS serverless solutions.
• Strong understanding of data modelling, asynchronous processing and event-driven architectures.
• Experience designing and implementing secure authentication, authorisation and multi-tenant application architectures.
• Strong software engineering fundamentals, including automated testing, source control, code review and maintainable software design.
• Sufficient front-end development experience to contribute effectively to applications built with Angular.

Responsibilities

• Research, analyse and evaluate business and system requirements to design and develop scalable, secure and reliable software solutions.
• Design, develop, maintain and enhance production APIs, backend services and application components in accordance with technical specifications and development standards.
• Design and maintain RESTful APIs, JSON schemas and OpenAPI specifications for reliable communication between internal and external systems.
• Contribute to software architecture and implementation decisions, including evaluating technical approaches, identifying technology limitations and recommending appropriate solutions.
• Write, review and maintain high-quality program code in accordance with system designs, technical specifications and software engineering best practices.
• Develop and maintain serverless and event-driven applications using AWS services including Lambda, API Gateway, EventBridge, DynamoDB, S3, Cognito and Secrets Manager.
• Design and implement secure, multi-tenant application services, including authentication, authorisation and technical security controls.
• Develop and maintain automated unit, integration and end-to-end tests.
• Investigate production incidents, perform root-cause analysis and implement corrective and preventative measures.
• Collaborate with engineering, product and compliance specialists to understand requirements and develop practical technical solutions.

Skills

Node.js

TypeScript

API design

AWS serverless

Distributed backend

Multi-tenant security

Automated testing

Angular

Education

Bachelor’s degree in CS/Software Engineering/IT

Job description

Intaxio Payroll Pty Ltd in Canberra is seeking a hands-on software engineer who works across backend APIs, cloud infrastructure and web applications, with a focus on serverless backend systems and integrations.

You will design, develop and operate production software, collaborating with product and compliance specialists to turn complex regulatory requirements into reliable solutions. A strong emphasis on practical implementation over architecture is expected.