API Engineering &
System Integration
Codexium builds high-reliability APIs, backend services, and deep cross-platform integrations that enable real-time data flow between SaaS platforms, enterprise systems, mobile apps, and internal tools.
High-Performance APIs for Modern Platforms
We build scalable API layers that integrate with CRMs, ERPs, authentication systems, payment providers, internal tools, and data pipelines — built for durability, speed, and correctness.
Whether you're integrating SaaS platforms or designing a custom API, Codexium delivers systems that work seamlessly across mobile, cloud, backend, and distributed environments.
Our integrations eliminate manual work, unify customer data, and enable smooth cross-team automation across your organization.
Custom API Architecture
REST, GraphQL, gRPC, Webhooks, and microservice-oriented API design built for reliability and scale.
3rd-Party Platform Integrations
Salesforce, HubSpot, Stripe, Twilio, Shopify, Zendesk, ServiceNow, SAP, and more.
Data & ETL Pipeline Engineering
Real-time ingestion, transformations, and system-to-system data syncing with strong validation.
What a Codexium API Engagement Delivers
- Custom API layers built for mobile, web, and cloud
- Authentication & identity integration (OAuth, SSO, JWT)
- Error-tolerant retry, queueing, and monitoring systems
- Bi-directional syncing with enterprise platforms
- Clean documentation for engineering & product teams
- High-availability, secure endpoints with rate limiting
Integrations Built to Remove Bottlenecks
Manual workflows create errors, delays, and inconsistent data. Codexium integrates your systems so information flows instantly between tools — without human coordination or fragile processes.
When Codexium API Engineering Is the Right Fit
- Your systems don't communicate with each other
- Your data is inconsistent across tools
- You rely on spreadsheets or manual updates
- Your business processes need automation
- You’re launching a product with multiple data sources
Monitoring & Reliability Engineering
Retries, circuit breakers, observability, structured logging, and failure resilience.
Secure Authentication Integration
SSO, OAuth, JWT, SAML, and identity flows connected to your systems and API layer.
Internal Tools & Workflow Automation
APIs powering internal dashboards, automations, and developer tools.