Arjun Singh

Mission-critical microservice unifying online + offline booking entry points into a single source of truth. Architected event-driven model using Azure Service Bus for async event publishing (booking initiated, payment confirmed, cancellation). Exposed via Azure APIM with strict API versioning and OAuth2 security. Achieved 45% API response time reduction through database query optimization and LRU caching.

Conversational daily-input operating system cascading updates across timesheets, KRAs, risk alerts, and leadership narratives. Leverages LLMs with natural language queries to eliminate status chasing through agentic automation. Single daily input automatically triggers 10+ downstream processes. Integrated with Slack for proactive notifications. Delivered 78% productivity gains with 70% administrative overhead reduction and 30+ hours/week process automation.

n8n-based compliance automation handling Grievance, DSAR, Breach notifications, Consent, and Vendor compliance workflows. Implemented automated SLA monitoring with 45/30/72-hour regulatory timeline enforcement. Evidence vaulting in Google Drive with immutable audit trails. Daily SLA cron sweepers with severity escalation via Slack + email. Achieved 100% SLA compliance with zero missed deadlines through automated escalation logic.

Automated conversion of voice/text inputs into structured product requirement specifications. Integrated Whisper STT for voice-to-text conversion, LLMs for intent extraction, and self-critique validation loops. Implements clarification feedback mechanism to prevent hallucinations. Generates JSON-schema structured outputs ensuring consistent requirement structure. Reduced requirement documentation time from hours to minutes with 100% specification consistency.

LLM-powered voice agent handling inbound calls with speech-to-text conversion, intelligent query processing, and text-to-speech response generation. Lightweight context retrieval architecture maintaining <60 second call resolution. Confidence-based escalation routing to human agents for complex queries. Deployed with Telephony APIs for 24/7 FAQ automation handling 80% of inbound volume, reducing human agent workload significantly.

Multi-modal generative AI platform leveraging Google Vertex AI ecosystem for text-to-image, image-to-image, text-to-video, and image-to-video generation. Implemented model selector routing (Imagen 3 for images, Veo 3 for videos, Gemini Flash for prototyping). Prompt enrichment layer standardizing creative descriptions into stable API parameters. Cost transparency mapping for each use case. Simplified product planning with clear ROI calculations per generative task.

Reusable React component streamlining KYC onboarding through guided multi-step flow: image capture → OCR processing → info extraction → OTP verification → confirmation. Centralized state management enabling proper back/forward navigation with state restoration. Self-contained with zero external dependencies for seamless integration. Reduced KYC completion steps and improved user conversion through simplified UX.

Enterprise finance platform managing complete quotation → proforma → payment → voucher → redemption lifecycle. Implemented single finite-state machine across all modules preventing state explosion and ensuring consistency. Role-based action visibility (Sales, Finance, Customer, Admin) derived from backend state. Real-time status tracking for all stakeholders eliminating manual checks. Backend-driven workflow orchestration with comprehensive audit trails for compliance and transparency.

Full-stack .NET application managing airport financial documents and multi-department refund/cancellation workflows. Built with .NET Core backend and .NET Framework for legacy system integration. Frontend developed in React with CSS. Integrated Mastercard and PayU payment gateways with secure transaction handling. Centralized state machine defining consistent status vocabulary and transition rules across Ticket Counter → Finance Validation → Refund Operations. Automated inter-department routing with branching logic for partial/full/disputed scenarios. Eliminated manual reconciliations and reduced approval cycle times.