Enterprise Integration Developer

Kelsian Group; Adelaide; On-site; AUD 110,000 - 140,000; Full time

Job summary

Kelsian Group Limited | Group Information Technology is seeking an experienced Enterprise Integration Developer to design, develop, implement and support enterprise integrations across a diverse application landscape, primarily using Workato.

Reporting to the Head of Enterprise Applications, you will work with Business Analysts and Solution Architects to deliver new integration capabilities, maintain production services and continually improve the integration environment, including REST, SOAP,

Qualifications

• 3+ years' experience in integration development roles with hands-on iPaaS experience.
• Strong experience with integration platforms—Workato preferred; Boomi or MuleSoft also considered.
• Knowledge of REST and SOAP APIs, Webhooks and OAuth 2.0/API Keys.
• Proficiency with JSON, XML and scripting (JavaScript) for data transformation.
• Good SQL and database concepts.
• Understanding of integration patterns, error handling and logging.
• Experience with source control, CI/CD and controlled deployments.
• Knowledge of secrets management and secure integration development.

Responsibilities

• Design, develop, deploy and maintain enterprise integration workflows using Workato.
• Build and support APIs, connectors and reusable integration components.
• Develop REST, SOAP, API, event-driven and file-based integrations.
• Deliver integrations across Workday, Payroll, operational and other enterprise applications.
• Develop data transformations across JSON, XML, CSV and EIB formats.
• Translate functional requirements into detailed technical integration specifications.
• Design data mappings and transformation logic between source and target systems.
• Create and maintain technical documentation, sequence diagrams, data mappings and error-handling guides.
• Undertake unit and system integration testing and support User Acceptance Testing.
• Participate in deployment, rollback, recovery and post-go-live hypercare activities.
• Troubleshoot production integration issues and undertake root cause analysis.
• Monitor integration availability, performance, logging and alerting.
• Apply secure engineering practices including source control, peer review, environment management and controlled production deployments.
• Protect credentials, API keys, certificates and other secrets through approved security practices.
• Identify opportunities to automate manual processes and improve the reliability and efficiency of integration services.
• Stay current with Workato capabilities, platform developments and integration best practice.

Skills

Workato

iPaaS

REST APIs

JSON

XML

JavaScript

SQL

CI/CD

Education

Bachelor's degree in Computer Science or Information Systems

Tools

Workato

Boomi

MuleSoft

Job description

Kelsian Group Limited | Group Information Technology

Are you an experienced Integration Developer who enjoys solving complex technical challenges and building reliable, scalable integrations across enterprise platforms?

Kelsian Group is seeking a technically strong, hands-on Enterprise Integration Developer to join our Enterprise Applications team and help build and support the integrations connecting our global technology environment.

Reporting to the Head of Enterprise Applications, you will design, develop, implement and support enterprise integrations across a diverse application landscape, primarily using Workato, while working with APIs, event-driven integrations and file-based interfaces across Workday, Payroll, banking platforms and other enterprise applications.

This is an opportunity to play an important role in strengthening Kelsian's enterprise integration capability as our technology landscape continues to evolve.

About the role

You will work closely with Business Analysts, Solution Architects, Application Support teams, project teams, vendors and business stakeholders to deliver new integration capabilities, maintain reliable production services and continually improve our integration environment.

Your key responsibilities will include:

• Design, develop, deploy and maintain enterprise integration workflows using Workato.
• Build and support APIs, connectors and reusable integration components.
• Develop REST, SOAP, API, event-driven and file-based integrations.
• Deliver integrations across Workday, Payroll, operational and other enterprise applications.
• Develop data transformations across JSON, XML, CSV and EIB formats.
• Translate functional requirements into detailed technical integration specifications.
• Design data mappings and transformation logic between source and target systems.
• Create and maintain technical documentation, sequence diagrams, data mappings and error-handling guides.
• Undertake unit and system integration testing and support User Acceptance Testing.
• Participate in deployment, rollback, recovery and post-go-live hypercare activities.
• Troubleshoot production integration issues and undertake root cause analysis.
  Monitor integration availability, performance, logging and alerting.
• Apply secure engineering practices including source control, peer review, environment management and controlled production deployments.
• Protect credentials, API keys, certificates and other secrets through approved security practices.
• Identify opportunities to automate manual processes and improve the reliability and efficiency of integration services.
• Stay current with Workato capabilities, platform developments and integration best practice.

About You

We are looking for someone who combines strong hands-on technical capability with the ability to work collaboratively across both Technology and the broader business.

You will bring:

• 3+ years' experience in integration development roles with hands-on iPaaS experience.
• Strong experience with integration platforms — Workato is preferred, although experience with Boomi, MuleSoft or similar platforms will also be considered.
• Strong knowledge of REST and SOAP APIs, Webhooks and authentication protocols, including OAuth 2.0 and API Keys.
• Proficiency working with JSON, XML and scripting, such as JavaScript, for data transformation.
• Good knowledge of database concepts and SQL.
• Strong understanding of integration patterns, error handling and exception logging.
• Experience with source control, peer review and controlled software development practices.
• Understanding of CI/CD, environment management and controlled production deployment.
• Knowledge of secrets management, authentication, privileged access and secure integration development.
• Experience implementing integration monitoring, logging and alerting.
• Understanding of rollback, service recovery and disaster recovery principles.
• Experience securely handling business, financial and personal data across system interfaces.
• Experience working within system implementation or enterprise transformation programs.
• Experience integrating SaaS and on-premise systems within hybrid environments.
• Exposure to agile project delivery methodologies will be well regarded.

A Bachelor's degree in Computer Science, Information Systems, Engineering or equivalent is required, with relevant iPaaS certifications also valued.

Why this role?

This is an opportunity to work across a broad enterprise technology landscape where integrations are critical to connecting business systems, people and processes.

You will have the opportunity to work with modern enterprise platforms, including Workato and Workday, contribute to significant technology initiatives and help shape reliable, secure and scalable integration solutions supporting Kelsian's global operations.

You'll join an Enterprise Applications team where your technical expertise will directly contribute to the quality, stability and future capability of our technology environment.

Additional information

The role supports enterprise applications and stakeholders across Kelsian's global operations, so reasonable flexibility to engage across different time zones may occasionally be required.

Reasonable after-hours support may also be required for planned production releases, critical production incidents and business-critical integration activities, with some travel required from time to time.

If you are an experienced Integration Developer looking for an opportunity to work across complex enterprise systems and play a key role in Kelsian's evolving technology landscape, we'd love to hear from you.

Applications close 4th September 2026

We are requesting your resume and a cover letter explaining why you are the best person for this position.

We aim to provide meaningful and sustainable employment opportunities that are free from barriers, support and celebrate the diverse talents of our team members, improve awareness of the value of diversity and inclusion across our organisation, and enable our leaders to champion diversity and inclusion. We welcome and encourage applications from Aboriginal and Torres Strait Islanders, LGBTQIA+, people with disability and people from diverse cultural backgrounds.