City People Solutions is a leading IT Consulting, multi-specialist and managed recruitment and talent hire services provider. We are recognized for our expertise and success in providing businesses with flexible, Motivated and performance-based workforce within the Australian marketplace.

Since our beginnings in 2016, the Australian Staffing Agency has grown in the spirit of providing professional services with a personal touch and exceeding the expectations of our customers. CPS provides quality labor solutions across a number of industry sectors including Industrial and commercial recruitment and focuses on helping our customers meet their staffing needs.

City People Solutions has built a strong company with a solid reputation based upon the company values of professionalism with a personal touch, respect for our customers and community, efficiency and responsiveness.

CPS provides training and on-the-job mentoring for all our staff to instill our values and help exceed our customers' expectations in the work that they do.

We help businesses build what is genuinely meaningful to their customers. We find the best way to enable change from the inside and ensure that the positive changes we make are sustained long after we leave.

Find us at - cpsanz.com

We are seeking an experienced InterSystems IRIS Developer to join our core engineering team. In this role, you will design, develop, and maintain high-performance transactional applications that power our rapid-paced wagering and gaming platforms. You will play a pivotal role in evolving our backend ecosystem, deploying high-throughput code into AWS cloud environments, and ensuring low-latency processing during peak racing and sporting events.

Key Responsibilities

Application Development: Design and implement robust backend services, APIs, and data models using InterSystems IRIS ObjectScript, persistent classes, and SQL.

AWS Cloud Deployments: Containerise IRIS applications and manage the deployment of code into AWS environments utilising services like Amazon ECS/EKS, AWS Lambda, and EC2.





CI/CD Automation: Build, maintain, and optimise automated software delivery governance, CI/CD pipelines, and testing frameworks to safely push code to production.

Wagering Platform Optimisation: Optimise database performance, horizontal scaling, and service-to-service communication to seamlessly handle massive concurrent user spikes during major betting events.

Integration & APIs: Develop secure, low-latency REST/GraphQL APIs to connect IRIS backend databases with frontend betting platforms, state-based regulatory systems, and third-party sports and racing data feeds.

Technical Governance: Lead technical architecture reviews, establish strict code review practices, and mentor junior engineers within the cloud and database space.

Required Experience & Skills

InterSystems Expertise: Proven commercial experience as a developer utilising InterSystems IRIS, Caché, or Ensemble (ObjectScript, InterSystems SQL, and interoperability production frameworks).

AWS Ecosystem: Hands-on experience operating cloud-native applications on AWS, including container orchestration (ECS/EKS), serverless computing (Lambda), IAM security, and networking.

DevOps & Containerisation: Strong working knowledge of Docker, Kubernetes, Infrastructure as Code (Terraform or CloudFormation), and modern CI/CD tools (e.g., GitHub Actions, GitLab CI, or Jenkins).

High-Throughput Architecture: Demonstrated experience building and tuning mission-critical, high-concurrency, low-latency transactional systems.

API & Integration Design: Solid background designing, securing, and troubleshooting RESTful and GraphQL APIs, alongside asynchronous messaging patterns (e.g., Kafka, SQS, or RabbitMQ).

Database Performance Tuning: Deep understanding of indexing strategies, query optimisation, locking mechanisms, and data modelling for rapid read/write operations.

Applications close based on the volume of applications received.

CPS is an equal opportunity employer that actively embraces diversity in its workforce through accurate community representation of gender, culture; thought and work arrangements

📌 SALESFORCE DEVELOPER (Sydney)
🏢 City People Solutions
📍 Sydney