SYSTEMS INTEGRATION
The tools you already use—working harder together
We help teams design, implement, and maintain integrations that streamline operations, reduce manual work, and give your business a complete view across platforms.
This isn’t just your business.
It’s your legacy.
What we deliver
Clean, maintainable integrations built with the right architecture and the right level of complexity.
Integration architecture and scoping
We design event flows, data mappings, and interface contracts between systems—whether it’s one-way sync, bidirectional, or event-driven.
Integration architecture and scoping
We design event flows, data mappings, and interface contracts between systems—whether it’s one-way sync, bidirectional, or event-driven.
Integration architecture and scoping
We design event flows, data mappings, and interface contracts between systems—whether it’s one-way sync, bidirectional, or event-driven.
API-based integration development
We build robust REST or GraphQL integrations using modern frameworks (e.g. Node.js, FastAPI, .NET)—with retries, observability, and idempotency built in.
API-based integration development
We build robust REST or GraphQL integrations using modern frameworks (e.g. Node.js, FastAPI, .NET)—with retries, observability, and idempotency built in.
API-based integration development
We build robust REST or GraphQL integrations using modern frameworks (e.g. Node.js, FastAPI, .NET)—with retries, observability, and idempotency built in.
Middleware and messaging layer setup
For more complex integrations, we implement brokers like Kafka, SNS/SQS, or Azure Service Bus to decouple systems and improve resilience.
Middleware and messaging layer setup
For more complex integrations, we implement brokers like Kafka, SNS/SQS, or Azure Service Bus to decouple systems and improve resilience.
Middleware and messaging layer setup
For more complex integrations, we implement brokers like Kafka, SNS/SQS, or Azure Service Bus to decouple systems and improve resilience.
Authentication and security management
We implement secure auth flows (OAuth2, JWT, API keys), rotate secrets automatically, and encrypt sensitive data at rest and in transit.
Authentication and security management
We implement secure auth flows (OAuth2, JWT, API keys), rotate secrets automatically, and encrypt sensitive data at rest and in transit.
Authentication and security management
We implement secure auth flows (OAuth2, JWT, API keys), rotate secrets automatically, and encrypt sensitive data at rest and in transit.
Error handling and retry logic
We build retryable jobs, dead-letter queues, and logging so you can identify and resolve issues without losing data or context.
Error handling and retry logic
We build retryable jobs, dead-letter queues, and logging so you can identify and resolve issues without losing data or context.
Error handling and retry logic
We build retryable jobs, dead-letter queues, and logging so you can identify and resolve issues without losing data or context.
Data transformation and format standardisation
We clean, validate, and map data across systems (JSON, XML, CSV, etc.) to ensure downstream compatibility and business logic alignment.
Data transformation and format standardisation
We clean, validate, and map data across systems (JSON, XML, CSV, etc.) to ensure downstream compatibility and business logic alignment.
Data transformation and format standardisation
We clean, validate, and map data across systems (JSON, XML, CSV, etc.) to ensure downstream compatibility and business logic alignment.
We’ve got the credentials—and
the experience to prove it
We integrate with the platforms our clients know and trust.
NetSuite Partner
We connect NetSuite to sales, billing, and reporting systems to reduce manual ops and increase accuracy.
NetSuite Partner
We connect NetSuite to sales, billing, and reporting systems to reduce manual ops and increase accuracy.
NetSuite Partner
We connect NetSuite to sales, billing, and reporting systems to reduce manual ops and increase accuracy.
HubSpot Partner
We integrate HubSpot with CRMs, ERPs, and internal tools for lifecycle visibility and automation.
HubSpot Partner
We integrate HubSpot with CRMs, ERPs, and internal tools for lifecycle visibility and automation.
HubSpot Partner
We integrate HubSpot with CRMs, ERPs, and internal tools for lifecycle visibility and automation.
Salesforce Partner
We build and maintain stable Salesforce integrations across all your data flows.
Salesforce Partner
We build and maintain stable Salesforce integrations across all your data flows.
Salesforce Partner
We build and maintain stable Salesforce integrations across all your data flows.
Customers love Halcrow
Over one million engineering hours delivered to Australia's mid-market entrepreneurs and intrapreneurs
Over one million engineering hours delivered to Australia's mid-market entrepreneurs and intrapreneurs
Over one million engineering hours delivered to Australia's mid-market entrepreneurs and intrapreneurs
OUR CULTURE
OUR CULTURE
This is where good
work gets done
This is where good
work gets done
We only hire great minds who treat your ambition as their own—a culture that’s just been recognised with the Best Workplaces in Technology award.
We only hire great minds who treat your ambition as their own—a culture that’s just been recognised with the Best Workplaces in Technology award.
Our Roadmap
How we work
We define every integration before we write a line of code
We scope event schemas, frequency, trigger logic, and system ownership upfront.
We define every integration before we write a line of code
We scope event schemas, frequency, trigger logic, and system ownership upfront.
We define every integration before we write a line of code
We scope event schemas, frequency, trigger logic, and system ownership upfront.
We treat integrations as part of your product stack
That means environment parity, deployment pipelines, structured logs, and test coverage—not ad hoc scripts in someone’s inbox.
We treat integrations as part of your product stack
That means environment parity, deployment pipelines, structured logs, and test coverage—not ad hoc scripts in someone’s inbox.
We treat integrations as part of your product stack
That means environment parity, deployment pipelines, structured logs, and test coverage—not ad hoc scripts in someone’s inbox.
We use versioned contracts and backwards-compatible changes
Every payload schema is versioned. We avoid breaking changes. Deprecation timelines are clear.
We use versioned contracts and backwards-compatible changes
Every payload schema is versioned. We avoid breaking changes. Deprecation timelines are clear.
We use versioned contracts and backwards-compatible changes
Every payload schema is versioned. We avoid breaking changes. Deprecation timelines are clear.
We leave you with visibility and control
Whether it’s retry queues, dashboards, or Slack alerts—we build in the tools to monitor and manage your integrations without a ticket.
We leave you with visibility and control
Whether it’s retry queues, dashboards, or Slack alerts—we build in the tools to monitor and manage your integrations without a ticket.
We leave you with visibility and control
Whether it’s retry queues, dashboards, or Slack alerts—we build in the tools to monitor and manage your integrations without a ticket.
Optional Add-Ons
Custom connector development
Need a new integration where the vendor doesn’t provide one? We’ll build it, document it, and support it.
Custom connector development
Need a new integration where the vendor doesn’t provide one? We’ll build it, document it, and support it.
Custom connector development
Need a new integration where the vendor doesn’t provide one? We’ll build it, document it, and support it.
Integration reliability audit
We’ll trace end-to-end flows, flag silent failures, and identify opportunities to reduce brittleness or bottlenecks.
Integration reliability audit
We’ll trace end-to-end flows, flag silent failures, and identify opportunities to reduce brittleness or bottlenecks.
Integration reliability audit
We’ll trace end-to-end flows, flag silent failures, and identify opportunities to reduce brittleness or bottlenecks.
Ops dashboard and alerting setup
Centralised view of queue health, sync status, and error trends—so you catch issues before your users do.
Ops dashboard and alerting setup
Centralised view of queue health, sync status, and error trends—so you catch issues before your users do.
Ops dashboard and alerting setup
Centralised view of queue health, sync status, and error trends—so you catch issues before your users do.
Have questions about how our Systems Integration service works? Let’s talk it through.
TESTIMONIAL
TESTIMONIAL
TESTIMONIAL
“Halcrow has a keen understanding of our company and our clients’ needs. Their technical knowledge enable them to deploy solutions that continue to further our growth.”
“Halcrow has a keen understanding of our company and our clients’ needs. Their technical knowledge enable them to deploy solutions that continue to further our growth.”
“Halcrow has a keen understanding of our company and our clients’ needs. Their technical knowledge enable them to deploy solutions that continue to further our growth.”
Michael Kalucy
Michael Kalucy
Michael Kalucy
Director, The Workhouse for Boehringer Ingelheim
Director, The Workhouse for Boehringer Ingelheim
Director, The Workhouse for Boehringer Ingelheim
Real outcomes from better-connected systems
We’ve helped our clients streamline ops, reduce API failures, and unlock new automation opportunities.
Results
Replaced 10+ hours/week of manual entry through integration between NetSuite and HubSpot for revenue reporting and customer sync
Results
Implemented SSO and scoped permissions using Azure AD across 3 cloud platforms, reducing identity sprawl and manual provisioning
Results
Enabled unified reporting across product, billing, and CX by integrating Snowflake with Shopify and Stripe
Tools and technologies we use
We integrate the platforms and services that matter to your business.
ERP and CRM
Commerce and payments
Collaboration and service
Relevant frameworks and languages
Relevant frameworks and languages
Related services
Why Halcrow
We don’t just connect systems—we design them to work together properly.
01
We document every flow
So your team knows what’s happening, where, and how to debug it.
02
Specialising in mid-market operational ecosystems
03
We keep the logic in the right place
04
No brittle, one-off scripts or integrations no one understands
Let's find out if we're your unfair advantage
Let's find out if we're your unfair advantage
Let's find out if we're your unfair advantage
Frequently asked questions
What does Halcrow do?
What does Halcrow do?
What does Halcrow do?
How is Halcrow different from a software agency or consultancy?
How is Halcrow different from a software agency or consultancy?
How is Halcrow different from a software agency or consultancy?
Who does Halcrow work with?
Who does Halcrow work with?
Who does Halcrow work with?
Which industries does Halcrow support?
Which industries does Halcrow support?
Which industries does Halcrow support?
What is an embedded team model?
What is an embedded team model?
What is an embedded team model?
What if I don't know exactly what I need yet?
What if I don't know exactly what I need yet?
What if I don't know exactly what I need yet?