DevNexa.
Digital Product Engineering Studio

We build digital products that move businesses forward.

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Our Core Expertise

Digital products built around your business.

Whichever stage you're at — a new idea, a product that needs rebuilding, or one that just needs to keep improving — here's how we can help.

Enterprise ERP & POS Systems

We design and build production-grade Enterprise ERP platforms for supermarket networks, retail chains, and multi-location businesses — modeled on our Gropto ERP blueprint for 1 to 1,000+ store scalability with offline billing, WMS, and real-time inventory intelligence.

  • CEO Command Center & live margin analytics
  • Offline-first Store POS with conflict-safe sync
  • Warehouse Management System (WMS & GRN)
  • Procurement, PO planning & 3-way invoice match
  • Batch/Expiry exposure & shrinkage intelligence
  • Omnichannel OMS, rider dispatch & delivery OTP
Discuss Your Project

FinTech & Financial Engineering

We engineer secure FinTech platforms, multi-currency wallet systems, payment gateway integrations, automated tender reconciliations, and immutable audit ledgers designed for high transaction volume and strict compliance.

  • Payment gateway integrations (Stripe, Razorpay, UPI)
  • Automated tender & cash reconciliation engines
  • Multi-currency wallets & ledger architectures
  • Banking APIs & webhooks processing
  • GST & tax audit trail compliance
  • Real-time fraud prevention & exception alerts
Discuss Your Project

Cross-Platform Desktop Applications

We develop standalone desktop applications for hardware-connected POS terminals, enterprise control panels, offline-first offline databases, and heavy computational tools with native OS capabilities.

  • Electron.js & Tauri application architecture
  • Offline-first local database sync (SQLite/IndexedDB)
  • Hardware integration (Barcode, Thermal Receipt Printers, POS)
  • Native Windows, macOS & Linux installers
  • Auto-updating release pipelines
  • Low latency, high-throughput desktop UI
Discuss Your Project

B2B SaaS Development

We design and develop scalable B2B SaaS platforms with multi-tenant architecture, role-based access, dashboards, workflows, billing, and enterprise features — the same kind of system behind Revomo and Genius.

  • Multi-tenant architecture
  • Organization & team management
  • Role-based access control
  • Billing and subscription management
  • Usage tracking and dashboards
  • API-driven backend services
Discuss Your Project

AI & Intelligent Agents

We build AI-powered applications including conversational agents, voice AI, video communication, knowledge-based AI, and automated business workflows — as shipped on Nexxos.

  • Conversational AI agents
  • Voice AI and telephony integration
  • Video-based interactions
  • Knowledge and RAG-based systems
  • Real-time, event-based communication
  • Agent configuration and management
Discuss Your Project

Business Automation

We transform manual business processes into centralized digital platforms with structured workflows, dashboards, notifications, and reporting — the pattern behind NETMOS and OPS Ticket.

  • Workflow and ticket lifecycle management
  • Role-based dashboards
  • Notifications and activity tracking
  • Document management
  • Reporting and analytics
  • Administrative controls
Discuss Your Project

E-commerce Development

We build modern e-commerce platforms with product catalogues, cart and checkout systems, payment integration, order management, and responsive customer experiences — as delivered for JMD Medico.

  • Product catalog and search
  • Cart and streamlined checkout
  • Payment integration with failure handling
  • Order and customer management
  • WhatsApp / order notifications
  • Mobile-first responsive design
Discuss Your Project

Enterprise Application Development

We develop custom enterprise systems for logistics, real estate, education, operations, healthcare, billing, and other business domains — including the property management platform built for Orion DXN.

  • Custom role and permission models
  • Multi-team, multi-department workflows
  • Booking, transaction, and payment plans
  • Document and reporting systems
  • Dashboard-based operations
  • Data-heavy backend architecture
Discuss Your Project

Custom Software Solutions

We work with businesses to design and develop customized software solutions based on their specific workflows, operational requirements, and business goals — rather than forcing you into a generic template.

  • Requirements & workflow discovery
  • Custom architecture and scoping
  • API integrations
  • Scalable backend design
  • Ongoing iteration and support
  • Direct access to the engineering team
Discuss Your Project

Business Solutions We Build

Platform types we've shipped in production.

Gropto Enterprise ERP & Supermarket NetworksFinTech & Banking API SystemsCross-Platform Desktop Apps (Electron & Tauri)B2B SaaS PlatformsE-commerce PlatformsWordPress & CMS WebsitesLogistics & Delivery SystemsProperty Management SystemsLearning Management Systems (LMS)CRM & Admin DashboardsPayment & Subscription SystemsReal-Time ApplicationsAI-Powered PlatformsBusiness Automation SystemsCustomer & Partner PortalsRole-Based Enterprise Applications

Technology Expertise

The full stack behind the platforms we build.

ERP & Supply Chain Systems

Omnichannel Retail ERPOffline-First POS EnginesWarehouse Management (WMS)Order Management System (OMS)Procurement & 3-Way Invoice MatchBatch, FEFO & Expiry TrackingCEO Command Center DashboardsStock Indent & Inter-Store TransferFraud & CCTV Bill Loss Prevention

FinTech & Financial Engineering

Stripe & Razorpay IntegrationAutomated Tender ReconciliationMulti-Currency Wallet SystemsDouble-Entry Audit LedgersBanking APIs & WebhooksGST & Tax Invoice CompliancePayment Gateway Webhook RoutersFinancial Analytics & P&L Engines

Desktop Application Stacks

Electron.jsTauri (Rust + React)Native Desktop POS DriversSQLite Local Database SyncHardware Barcode Scanner APIsThermal ESC/POS Receipt PrintersCross-Platform Windows/macOS/Linux

Frontend Development

React.jsNext.jsAngularTypeScriptJavaScript (ES6+)JavaScript & jQueryReduxTailwind CSSBootstrap CSSMaterial UIAnt DesignHTML5 & CSS3Responsive Web DesignResponsive & Mobile-First UIReact RouterAG GridAxiosVite

Backend Development

Node.jsExpress.jsASP.NET Core.NET / C#Entity Framework CoreFastAPIPythonJavaPHPMicroservices ArchitectureRESTful APIsPostgreSQLSQL ServerMySQLMongoDB & MongooseRedisRabbitMQDatabase ManagementSequelize ORMServer-Sent Events (SSE)WebhooksBackground Jobs & Async ProcessingRole-Based Access Control (RBAC)

CMS & Web Development

WordPress DevelopmentDrupal DevelopmentWordPress Theme Development & CustomizationDrupal Theme Development & CustomizationWordPress Plugin DevelopmentDrupal Module DevelopmentElementor & GutenbergWooCommerceDrupal Views & Custom ModulesCMS CustomizationWebsite Development & MaintenanceWebsite MigrationPerformance OptimizationSEO-Friendly DevelopmentWebsite SecurityBug Fixing & Troubleshooting

Authentication & Security

JWT AuthenticationBcryptOTP-based AuthenticationEmail VerificationPhone Number VerificationGoogle Authentication / OAuthAmazon CognitoRole & Permission ManagementSecure API AuthorizationSession Management

Payment Integration

RazorpayStripeUPI PaymentsCredit & Debit CardsNet BankingPayment LinksPayment WebhooksPayment VerificationRefund & Payment Status HandlingTransaction Management

Communication & Messaging

WhatsApp Business APIWhatsApp NotificationsWhatsApp OTP & VerificationTransactional WhatsApp MessagesEmail NotificationsEmail OTPWelcome & Verification EmailsTransactional EmailsSMTP / Email APIsAutomated Communication Workflows

Real-Time Features

Server-Sent Events (SSE)Real-Time NotificationsLive Status UpdatesReal-Time DashboardsEvent-Driven CommunicationWebhooksBackground Event Processing

Cloud & Infrastructure

AWSMicrosoft AzureAWS LambdaAmazon SESAWS Certificate ManagerCloudflareDockerRedis / UpstashSupabaseNeon PostgreSQLHostingerVercelRender

AI & Automation

OpenAI APIsGoogle GeminiClaudeLangChainLangGraphRetrieval-Augmented Generation (RAG)AI AgentsAgentic AIVoice & Video AI IntegrationsAI-Powered AutomationIntelligent Workflows

File & Media Management

CloudinaryImage & Video UploadsDocument ManagementExcel / CSV ProcessingPDF GenerationFile Storage & Transformation

Third-Party Integrations

API IntegrationThird-Party API IntegrationGoogle MapsGoogle OAuthWhatsAppPayment GatewaysEmail ServicesSMS / OTP ServicesCRM & Business APIsWebhooks & External API Integrations

Development & DevOps

Git / Version ControlPostmanSystem Design & OOPData Structures & AlgorithmsGitHubGitHub ActionsDockerCI/CDREST API ArchitectureOpenAPI / SwaggerEnvironment-Based ConfigurationAPI Testing & IntegrationProduction Deployment