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EV Charging/Charger Management Platform
S3 Scale · Charger Management

Charger Management Platform

We build charger management systems that scale from 10 chargers to 10,000. Our CSMS platforms handle OCPP communication, real-time monitoring, billing, driver apps, and multi-site fleet operations for charge point operators who need reliable infrastructure software.

What We Deliver Icon

What We Deliver

Core capabilities

Central System Management (CSMS)

Full OCPP server implementation that manages charger connections, processes transaction messages, handles firmware updates, and maintains persistent WebSocket connections with thousands of charge points simultaneously.

OCPP ServerWebSocketFleet ManagementReal-Time

User and Access Management

Driver-facing mobile apps with session start/stop, charging history, and payment methods. Backend RFID card management, roaming support via OCPI and eMIP protocols, and multi-tenant user hierarchies.

Driver AppRFIDOCPIeMIP

Billing and Payment Processing

Session-based billing with configurable tariff structures (flat rate, kWh, time, idle fees). Stripe and payment gateway integration, invoice generation, and revenue settlement across multiple site owners.

StripeTariffsInvoicingSettlement

Real-Time Monitoring Dashboard

Live charger status across all sites with energy consumption tracking, fault detection, uptime metrics, and alerting. We build dashboards that give operators the visibility they need to run a reliable network.

Live StatusAlertsUptimeGrafana

Reporting and Analytics

Utilization reports per charger and site, revenue analytics with trend analysis, energy consumption patterns, SLA compliance tracking, and exportable reports for stakeholder communication.

UtilizationRevenueEnergy TrendsSLA

Multi-Site Management

Site grouping with hierarchical organization, role-based access control for operators and site managers, white-label support for branding customization, and API-first architecture for third-party integrations.

Multi-TenantRBACWhite-LabelAPI
Engineering Flow Icon

Engineering Flow

How we execute

01Requirements > CPO Workflow AnalysisPlan
02CSMS Architecture > Database DesignDesign
03OCPP Server DevelopmentBuild
04Dashboard and API DevelopmentBuild
05Payment Integration > Billing EngineBuild
06Integration Testing > Load TestingTest
07Staging Deployment > UATValidate
08Production Deployment > OperationsRelease
Tech Stack Icon

Tech Stack

Tools & technologies

Node.js / Python

Backend services for OCPP message processing and business logic.

ExpressFastAPIAsyncIO

PostgreSQL

Primary database for transactions, users, and charger configuration.

TimescaleDBMigrationsJSONB

Redis

In-memory cache for charger status, session state, and pub/sub.

Pub/SubCachingQueues

WebSocket Server

Persistent OCPP connections with reconnection handling and load balancing.

wsSocket.IOScaling

React Dashboard

Operator-facing management interface with real-time updates.

Next.jsTypeScriptTailwind

Grafana

Monitoring dashboards for charger health, uptime, and energy metrics.

PrometheusAlertsPanels

Stripe

Payment processing, subscription billing, and revenue management.

PaymentsWebhooksInvoices

AWS / Azure

Cloud infrastructure with auto-scaling, managed databases, and CDN.

ECSRDSCloudFront

Docker / Kubernetes

Containerized deployment with orchestration for high availability.

HelmCI/CDScaling

Ready to build your charging platform?

We have built CSMS platforms managing thousands of chargers. Let us show you our architecture approach.