Integration Software Development

Connect your systems. Automate the handoffs. Eliminate manual work.

SVLcode builds integration software that connects SaaS tools and enterprise systems so data moves reliably across your business—without spreadsheets, copy/paste, or brittle scripts.

We design and develop:

• Custom connectors for SaaS platforms and enterprise applications

• Integration layers (APIs, webhooks, event-driven sync)

• Workflow automation triggered by cross-system events

• Data normalization and reconciliation for consistent reporting and control

Talk to an expert | Get an integration plan

What we integrate

SaaS and enterprise systems

We build integrations and connectors for platforms such as:

• Xero (including marketplace-grade integration patterns)

• QuickBooks

• NetSuite

• SAP (via appropriate enterprise integration patterns and interfaces)

• Microsoft SharePoint (documents, lists, permissions-aware workflows)

• CRMs, helpdesks, payment providers, banking feeds, data warehouses, and internal systems

If your platform has an API, file export/import, SFTP, or webhook model, we can integrate it in a controlled, production-grade way.

What we build

Integration capabilities that work in production

Custom connectors

• Auth flows (OAuth, API keys, SSO where applicable)

• Rate limit handling and backoff strategies

• Pagination, incremental sync, and delta updates

• Idempotency to prevent duplicates

• Robust error handling, retries, and dead-letter patterns

API and integration layer

• Unified internal API that abstracts vendor complexity

• Webhook ingestion and event routing

• Data mapping and transformation (canonical data models)

• Versioning strategies for evolving APIs

Two-way sync and reconciliation

• Bi-directional updates where required

• Conflict resolution rules (“system of record” logic)

• Reconciliation reports and exception queues

• Audit trails: what changed, when, and why

Integration-driven automation

• Trigger workflows across tools (e.g., invoice → approval → ERP posting → remittance)

• Exception handling with ownership and SLAs

• Notifications, approvals, and evidence retention for compliance

Why SVLcode for integrations

Built for reliability, security, and long-term maintainability

Integrations fail when they’re treated as “just API calls.” We build them like products:

• Production reliability: retries, queues, dead-letter handling, and observability

• Data integrity: idempotency, deduplication, and reconciliation-safe sync

• Enterprise security: least-privilege access, encryption, secrets management

• Auditability: traceable sync history and evidence retention

• Scalable architecture: handles growth in volume, tenants, and use cases

Marketplace-grade experience (Xero)

Built to meet marketplace expectations

We have delivered integration work that meets marketplace-level requirements—clean onboarding flows, robust sync, clear error handling, and high reliability—resulting in apps recognized among top Xero marketplace offerings.

(If you want to be conservative, you can phrase this as “recognized among leading apps” or “featured” depending on the exact public claim you’re comfortable making.)

Common integration use cases

Where integrations unlock ROI

• Finance automation: bills, invoices, reconciliation, payments, reporting

• Document workflows: SharePoint/Drive → extraction → validation → system updates

• Customer onboarding: CRM → provisioning → billing → notifications

• Ops automation: tickets → tasks → approvals → audit trail

• Data consolidation: multi-system reporting and analytics pipelines

• Enterprise workflows: SAP/ERP integration with controlled approvals and governance

Our delivery approach

Clear stages. Predictable outcomes.

1. Discovery & system mapping
   Define systems of record, data flows, security constraints, and failure scenarios.

2. Integration blueprint
   Canonical data model, sync strategy (push/pull), error handling, and monitoring plan.

3. Build & test
   Connector development, sandbox testing, edge cases, load testing, and resilience.

4. Observability & hardening
   Monitoring, alerting, replay tooling, and runbooks for operations teams.

5. Launch & support
   Production rollout, reliability tuning, version management, and ongoing maintenance.

Technology & architecture

Modern stack designed for integration reliability

We build integrations using:

• TypeScript / JavaScript

• Node.js integration services and workers

• AWS (queues, event routing, secure compute, monitoring)

• PostgreSQL (state, sync checkpoints, audit logs)

• Event-driven patterns for scale, retries, and resilience

Ready to connect your systems and remove manual handoffs?

Tell us what you need to integrate—Xero, QuickBooks, NetSuite, SAP, SharePoint, or other systems—and what workflow you want to automate. We’ll propose a clear integration plan with scope, milestones, and expected outcomes.

Book a call | Request a proposal