IT Services, System Integration & API Development in Fontana, CA

At United AI Marketing, we turn disconnected tools into a streamlined, revenue-driving stack. As a technology partner with 20+ years of family-built engineering and marketing experience, we help Fontana organizations connect CRM, ERP, ecommerce, logistics, finance, communications and AI so data flows in real time and teams move faster.

What we do

• IT services focused on reliability, performance and measurable business value
• System integration across legacy and modern platforms with minimal downtime
• Custom API development, microservices and middleware tailored to your workflows
• Event-driven and batch data pipelines for clean, synchronized records
• Call center and sales automation powered by our AI-ready CRM
• Monitoring, documentation, training and ongoing support

Whether you need a single connection or an enterprise-grade integration fabric, we design for security, scalability and future change.

Systems we connect

• CRM and sales: Salesforce, HubSpot, Zoho, our AI-enabled CRM
• ERP and accounting: NetSuite, Microsoft Dynamics, QuickBooks, Sage
• Ecommerce and marketplaces: Shopify, WooCommerce, BigCommerce, custom storefronts
• Marketing and ads: Google Ads, Meta, Local Services Ads, GMB, Yelp
• Communications: Twilio, VoIP, call center platforms, SMS and email gateways
• Logistics and fulfillment: 3PLs, carrier APIs, WMS, label and tracking systems
• Data and BI: warehouses, lakes and ETL to tools like BigQuery and Redshift

We are equally comfortable integrating commercial SaaS and proprietary line-of-business apps using REST, GraphQL, SOAP or EDI.

API development capabilities

• Design-first APIs with OpenAPI and reusable schemas
• REST and GraphQL endpoints with robust pagination, filtering and rate limiting
• Secure auth with OAuth 2.0, JWT, SSO and token rotation
• Webhooks and event-driven patterns for near real-time sync
• Message queues and streaming (e.g., Kafka, RabbitMQ) to decouple services
• Service versioning, backward compatibility and SLA-aware change management
• Automated testing, CI/CD pipelines and blue-green or canary releases
• Observability with logs, metrics and traces for rapid troubleshooting

Every API ships with clean documentation, examples and performance considerations so your team can extend it confidently.

How we work

• Discovery and audit: map current systems, data models, pain points and goals
• Technical blueprint: target architecture, security model, sequence diagrams and milestones
• Sprint delivery: iterative builds with demos, feedback loops and measurable outcomes
• Quality and hardening: automated tests, performance tuning and failure simulations
• Go-live and changeover: phased cutovers that protect day-to-day operations
• Post-launch optimization: monitoring, tuning, backlog grooming and team enablement

Most projects start with a focused assessment and a clear, prioritized roadmap so stakeholders see progress quickly.

Security and reliability

• Security-first engineering aligned with OWASP best practices
• Transport encryption (TLS 1.2+) and encryption at rest where applicable
• Least-privilege access, key management and audit logging
• PII handling guidelines and data minimization strategies
• Error budgets, SLOs and alerts to maintain availability

We build integrations that are resilient to upstream changes with health checks, retries, dead-letter queues and circuit breakers to protect core processes.

Tooling and tech stack

• Cloud: AWS, Azure and Google Cloud
• Runtime: Node.js, Python, .NET and Java
• Datastores: Postgres, MySQL, SQL Server, Redis and document databases
• Infrastructure: Docker, Kubernetes, serverless functions and Terraform
• Tooling: GitHub Actions, OpenAPI, Postman collections and automated API linting

We choose the right tools for your requirements, budget and team skills to keep total cost of ownership predictable.

Support and SLAs

• Monitoring and incident response with defined escalation paths
• Knowledge transfer and training for internal teams
• Documentation including runbooks and dependency maps
• Flexible engagement models: managed integrations, dedicated squads or co-delivery

Our goal is long-term stability, so we make it easy to operate and evolve the solution after launch.

Industries we serve

• Ecommerce and retail: inventory sync, order orchestration and returns automation
• Logistics and 3PL: rate shopping, label generation, tracking and exception handling
• Manufacturing: ERP, MRP and supplier portal integrations
• Home services: scheduling, dispatch, CRM and payments
• Healthcare and wellness: scheduling, billing and secure messaging workflows
• Financial services: KYC workflows, reporting and back-office automation

We combine system integration with AI-assisted workflows, call center automation and marketing attribution to reveal what truly drives growth.

Sample outcomes

• Fontana logistics operator: eliminated manual re-entry between WMS and carrier APIs, cutting shipping errors and speeding fulfillment
• DTC retailer: unified Shopify, CRM and accounting for real-time inventory and revenue recognition
• B2B manufacturer: introduced a quoting API and ERP bridge, reducing quote cycle time and boosting win rate

Each engagement focuses on measurable KPIs such as order-to-cash time, lead response, error rates and support burden.

Serving Fontana and beyond

We are local to Fontana and the Inland Empire, supporting teams in Rancho Cucamonga, Ontario, Riverside, San Bernardino, Jurupa Valley, Rialto, Colton and Upland. We also deliver remotely across the U.S. and Europe, partnering with organizations in Los Angeles, San Diego, Phoenix, Las Vegas, San Jose, San Francisco, Seattle, Denver, Austin, Dallas, Houston, Chicago, Miami, New York, Boston, London, Berlin, Paris, Amsterdam, Madrid and Warsaw.

Engagement models and timelines

• Fixed-scope packages for well-defined integrations
• Time and materials for complex or evolving requirements
• Managed integration with proactive monitoring and enhancements
• Dedicated team for multi-system programs and rapid roadmaps

Discovery-to-go-live can be as short as a few weeks for focused API work, with larger programs phased to deliver value incrementally.

Why United AI Marketing

• 20+ years of practical software, marketing and automation experience
• AI-ready CRM and automation options to extend beyond integration
• Clear communication, local presence and global delivery capacity
• Business-first mindset that ties technical choices to revenue and efficiency

When your systems talk to each other, customers get faster responses, teams spend less time on manual tasks and leadership gains the data needed to scale.

Next steps

Request a free consultation to review your stack, identify quick wins and outline a pragmatic integration plan. We will map dependencies, highlight risks, estimate timelines and propose a delivery model that fits your goals and budget. Let us connect your tools, streamline operations and turn your data into a competitive advantage.