ERPs and Taxes
Totvs/Protheus, Bling, Omie, NFe/SEFAZ and automated reconciliations.
Examples: Totvs Protheus · Bling · Omie · SEFAZ/NFe
Connect systems without losing traceability.
Resilient APIs, idempotent webhooks, and data orchestration across ERPs, CRMs, payments, and messaging — with end-to-end observability.
ERPManagement and inventory
CRMCustomers and sales
GatewayPagamentos
appDigital experience
BIData and decisions
NotificationsMessages and alerts
API HubRules and routes
- API
- Versioned contracts
- Retry
- Controlled retries
- DLQ
- Traceable faults
- Logs
- Observable operation
Integrations we do
We connect your critical systems and create reliable flows with end-to-end observability.
CRMs and Sales
Sync leads, deals and activities in real time across platforms.
Examples: HubSpot · Pipedrive · Salesforce · RD Station
Payments
Pix, card, gateways and financial reconciliation with reliable webhooks.
Examples: Stripe · Pagar.me · Mercado Pago · Asaas
Messaging
WhatsApp Business API, transactional email, SMS and push notifications.
Examples: WhatsApp/Meta · SendGrid · Twilio · Firebase
E-commerce
Catalogs, orders, inventory and fulfillment on marketplaces and platforms.
Examples: VTEX · Shopify · WooCommerce · Free Market
Data & BI
ETL, real-time pipelines and exports to analytical platforms.
Examples: BigQuery · Snowflake · Metabase · Looker
How we deliver
Discovery
Complete mapping: systems, journeys, latencies, volumes and expected SLAs.
We document each point of contact and design the ideal flow.
Contracts
OpenAPI specification, authentication schemes and versioning strategy.
Versioned contracts guarantee compatibility between teams.
Implementation
Typed connectors, queues (SQS/RabbitMQ), retries with backoff and idempotence.
Automated CI/CD with contract and integration testing.
Observability
Structured logs, business metrics, intelligent alarms and DLQ.
Real-time dashboards for operations and business.
Why Quantum9
Reliability
Resilient flows with idempotence, retries and failure queues when the scenario requires it.
SLAscoped
Performance
Latency and throughput are measures to guide batching, parallelism and limits of APIs.
p95measured in operation
Security
Protected secrets, minimal access required, and encryption in transit as per architecture.
Acessoleast privilege
Living documentation
Documentation proportional to the risk, with examples and history of relevant changes.
OpenAPIversioned contract
Stack we use
- Protocols & Standards
- REST
- GraphQL
- gRPC
- WebSocket
- OpenAPI
- OAuth2/OIDC
- Messaging & Queues
- RabbitMQ
- AWS SQS
- Redis Streams
- Kafka
- BullMQ
- Infraestrutura
- Node.js
- Next.js
- PostgreSQL
- Redis
- Docker
- Terraform
- Observabilidade
- Datadog
- Grafana
- Sentry
- OpenTelemetry
- PagerDuty
FAQ
Answer your questions about deadlines, legacy systems and the operation of integrations.
Talk about your integrationYes. We implement specific integrations for legacy systems and also reuse ready-made connectors when possible — always with contract testing and documentation.
We define the strategy according to the risk: retries, idempotence, failure queues and alerts make errors visible and recoverable.
A simple flow can fit in a few weeks. The deadline depends on documentation, authentication, volume, business rules and approval environment.
Yes. We deliver observability dashboards with flow metrics, latency, errors and configurable alerts per channel (Slack, email, PagerDuty).
Yes. We map current flows and plan transition, parallel operation and rollback according to the risk and limitations of the systems involved.
Integrations that unlock your growth
Request a free diagnosis and receive a technical and business plan tailored to your operation.