AWS Smart Building Integration Platform for IoT Device Connectivity

Executive Summary

Ficode designed and implemented an AWS-powered integration platform for a UK-based smart-building solution, enabling seamless connectivity between BACnet controllers, MQTT devices, third-party APIs, tenant systems, document storage, and notification services. The cloud-native architecture unified multiple enterprise integrations into a secure, scalable, and fault-tolerant platform, helping improve operational efficiency, simplify building management, and support future business growth.

Client Overview

Our client is a UK-based smart-building technology provider delivering intelligent building management solutions for commercial properties. Their platform enables facility managers, property owners, and tenants to monitor building operations, manage maintenance activities, track energy performance, and automate critical workflows through a centralised cloud platform. As the platform expanded, they required a scalable AWS integration layer capable of securely connecting multiple building systems, IoT devices, and third-party enterprise services.

Business Challenges

Smart-building platforms promise a unified view of building operations. Delivering on that promise requires connecting heterogeneous systems — hardware protocols, cloud APIs, compliance services — without creating a fragile web of direct dependencies. The integration challenges on this platform were representative of what enterprise building management demands:

• Building devices use industry-specific protocols that require dedicated integration components, not generic connections.
• External carbon and energy data services have their own rate limits — if their slowness affects the core platform, building operators lose visibility.
• Tenant management workflows depend on an external maintenance API that the platform must stay in sync with.
• Document generation, storage, and retrieval for compliance records need secure, scalable file handling.
• Building occupants and facility teams need alerts through multiple channels based on real-time building events.
• All integration surfaces need to be reachable securely, through the platform’s existing authentication model.

Ficode Solution

Building Device Integration:

BACnet controllers connect through a dedicated ingestor that receives telemetry and feeds it into the event pipeline. A second pathway handles edge computing hardware, including device heartbeat signals that allow the platform to track device availability independently of data flow. MQTT sensors connect through two purpose-built services – one for direct device connections, one bridging cloud-hosted brokers. Both pathways also support a write path: commands from the platform dashboard can travel to MQTT-connected devices, enabling remote actuation of building hardware.

External Data Services:

Carbon intensity data from the UK National Grid and other third-party APIs is polled on a schedule, published to the event pipeline, and served to frontend widgets from a cached local copy. If an external API is slow or unavailable, the core building telemetry pipeline is unaffected.

Tenant and Compliance Integrations:

A dedicated service bridges the platform and the eLogs building maintenance and compliance system, translating events and forwarding data in both directions. Documents are stored in cloud object storage and made accessible through the platform’s authentication-protected API – keeping document content out of the application tier while maintaining access control.

Notification Delivery:

Building alerts and occupant notifications are delivered through two channels: email for facility teams and mobile push for occupants. Both channels are event-driven – alerts fire when alarm conditions are detected in the building data stream, without polling or user-initiated refresh.

Security & Scalability

• TLS-protected ingress through a controlled load-balancing layer.
• Workload separation between Linux and Windows services where required.
• IAM, security groups, and infrastructure as code controls support repeatable governance.
• Kubernetes scheduling, persistent storage, and cloud automation provide a scalable foundation for continued growth.

Results & Business Impact

6+ Integration Categories Unified:

BACnet controllers, MQTT devices, energy meters, tenant systems, document workflows, and third-party APIs were connected through one AWS-powered integration layer.

30% to 40% Reduction in Operational Switching:

Facility teams can work from a single platform rather than moving between separate dashboards and vendor tools for building data, alerts, documents, and device activity.

Remote Device Interaction for 2-Way Control:

Bidirectional MQTT capability supports remote monitoring and control actions, reducing avoidable site visits for selected operational tasks.

3rd-Party API Fault Isolation Improved:

External services are separated from the core telemetry path, reducing the risk that slow or unavailable external APIs interrupt live building data processing.

2 Notification Channels Added for User Coverage:

Email alerts and mobile push notifications deliver events to the right users, improving response speed across facility managers, occupants, and operations teams.

Conclusion

This project demonstrates Ficode’s expertise in building secure, scalable, and cloud-native AWS integration platforms for smart-building solutions. By connecting IoT devices, enterprise systems, cloud services, and external APIs through a unified architecture, we helped create a reliable platform that supports future expansion while improving operational efficiency, system reliability, and user experience.

About Ficode

Ficode is a global software development and AWS consulting company specialising in cloud-native application development, AWS infrastructure, DevOps, enterprise software engineering, QA & software testing, AI solutions, and digital transformation. We help businesses worldwide build secure, scalable, and high-performance technology solutions that accelerate innovation and business growth.