Ajay Prajapat

• Recent role-specific experience is positioned around Angular / React / Vue + Node.js / NestJS / Express.js, with primary stack experience: angular (9-10 years); react (7-8 years); vue.js (2-3 years); node.js / nestjs (9-10 years); node.js / express.js (6-7 years); javascript / typescript (11-12 years).
• Kept Angular / React / Vue + Node.js / NestJS / Express.js as the primary implementation and architecture narrative for this CV, while treating other technologies as supporting context instead of primary focus.
• Applied the stack in product and platform environments through API design, frontend-backend integration, cloud deployment, observability, code review, and technical decision-making.
• Maintained 3+ years of Agentic AI / GenAI delivery experience alongside the primary stack through RAG, tool calling, LangChain/LangGraph, OpenAI, Anthropic Claude, and production AI automation patterns.

• Built 3+ years of hands-on Agentic AI and GenAI delivery experience since 2022, architecting NestJS and LangChain/LangGraph-based AI platform services for Claude/OpenAI-backed multi-agent product workflows.
• Integrated LLMs into daily engineering and product workflows through tool-calling, retrieval, prompt/tool orchestration, and AI-native automation patterns.
• Defined service boundaries, execution guardrails, state management, routing, and controlled tool-execution flows for AI-enabled backend platforms, improving production readiness in multi-tenant agent workflows.
• Standardized planner-executor-critic orchestration, Redis-backed memory, and observability patterns across multiple AI products, reducing repeated platform design effort and accelerating new workflow setup.
• Evaluated serverless and edge-aligned execution patterns, including Cloudflare Workers for Platforms-style deployment boundaries, for lightweight agent workflow delivery.

• Defined Node.js and TypeScript service architecture across shared logistics and cloud services, establishing service boundaries and reliability patterns that supported distributed operations across multiple business domains and production workflows.
• Led Kafka-based event and CQRS workflow design for shipment and cloud integrations, increasing processing throughput while isolating failures across asynchronous workflows and downstream service dependencies.
• Applied Cloudflare DNS, caching, edge delivery, and Worker-oriented deployment patterns for web-facing platform surfaces, improving performance, rollout control, and operational consistency across client-facing environments.
• Shipped reusable API contracts that cut cross-team integration friction and accelerated new service delivery across shared services and multiple teams.
• Standardized CI/CD, observability, and containerized delivery patterns across shared platform services and deployment pipelines, creating a repeatable release model that improved production readiness and reduced manual release variance.
• Designed AWS-hosted services with containerized and function-oriented execution patterns aligned to Lambda, API Gateway, queue-based processing, and stateless horizontal scale.
• Shaped safe execution patterns for containerized build and automation workflows, including isolation boundaries and auditability for higher-risk generated or untrusted inputs.
• Drove backend engineering standards for APIs, messaging, testing, logging, monitoring, performance optimization, and cost-aware reliability across platform and product teams.

• Architected Node.js payment services with Redis, RabbitMQ, and MongoDB for transaction, settlement, and audit workflows, improving reliability and traceability across production payment operations in a regulated financial environment.
• Designed asynchronous recovery and failure-handling pipelines for settlement workflows, limiting transaction failure blast radius and improving recoverability across critical payment operations.
• Built FX, audit, and calendar services with clear service boundaries and reliable backend patterns, improving maintainability for compliance-sensitive financial systems.
• Introduced structured logging and monitoring patterns across shared payment services, improving operational visibility and accelerating root-cause analysis for transaction issues.

• Led backend and telemetry architecture for real-time industrial monitoring systems, improving visibility across machine telemetry flows and enabling faster detection of production-floor issues in live manufacturing operations.
• Designed NestJS APIs, WebSocket telemetry services, and Dockerized AWS workloads for real-time monitoring systems, improving response behavior and making production deployments more consistent.
• Implemented monitoring, alerting, and logging workflows that improved incident response readiness and strengthened uptime support for operational teams.
• Established maintainable data-flow and dashboard-integration patterns that improved reliability across backend and frontend delivery for industrial systems.

• Led Wi-Fi streaming platform delivery across firmware and cloud services, coordinating backend, device, and frontend engineering through repeated production release cycles.
• Drove migration from PHP/HTML components to Node.js/NestJS and Angular-based applications, improving maintainability and creating a more scalable delivery foundation.
• Improved streaming stability and security through authentication, service hardening, and backend modernization patterns, reducing recurring playback and access issues.
• Bridged hardware-aware delivery with backend and frontend architecture for production video streaming use cases.

• Built backend and web prototypes for ERP, LMS, IoT, and content-delivery systems, expanding applied architecture depth across institutional platforms.
• Implemented Node.js and Angular/React proof-of-concepts that accelerated experimentation for research-led deployment scenarios.
• Supported API, data, and device integration patterns for academic and IoT systems with practical production constraints.
• Strengthened distributed-system thinking through research-led prototyping and applied systems development.

• Delivered programming and software development training for students and early-career learners.
• Created structured coding exercises and project-based modules.
• Mentored learners to improve problem-solving and coding confidence.

• Developed and maintained .NET modules for business workflows.
• Implemented backend logic and SQL data integrations.
• Supported bug fixes and incremental feature delivery for internal applications.

Key Contributions

• Designed shipment lifecycle APIs and backend service flows covering the core order-to-delivery workflow, using clear bounded contexts and maintainable service contracts for business-critical logistics operations.
• Delivered Angular and React workflow surfaces for logistics operations, aligning UI behavior with backend service contracts to improve tracking accuracy and reduce integration drift across operational dashboards.
• Built Next.js customer shipment-visibility flows on top of event-driven backend contracts, improving consistency between internal operations state and customer-facing status journeys.
• Introduced Redis caching and containerized deployment patterns across logistics services, improving API responsiveness and creating a more repeatable runtime model for Kubernetes-based operations.
• Integrated Kafka and queue-driven processing to increase shipment-event throughput, improve traceability, and strengthen operational reliability during peak logistics activity.
• Established structured logging and traceable event flows across logistics integrations, improving diagnosability and making multi-service shipment workflows easier to operate at scale.

Key Contributions

• Designed planner, executor, and critic agent patterns with Claude/OpenAI model routing, tool-calling, Redis-backed working memory, and AI-native development workflows integrated into daily engineering.
• Built a secure orchestration layer in NestJS, LangChain, and LangGraph for controlled agent execution, audited actions, human-review checkpoints, and production automation.
• Designed execution guardrails, state transitions, and routing patterns for agentic workflows in multi-tenant environments so business automation remained observable, governable, and safer for operations, support, and content workflows.
• Evaluated edge-deployed and serverless-oriented execution patterns, including Cloudflare Workers for Platforms-style runtime boundaries, for lighter agent workflow delivery.

Key Contributions

• Agents for brand voice analysis, campaign planning, and content generation.
• Automated 90-day content calendars for multi-platform publishing.

Key Contributions

• OCR + LLM pipelines for PDFs/images/handwritten notes.
• Adaptive difficulty and personalized learning paths.

Key Contributions

• Built issue classification, RCA, technician-routing, and recommendation agents with controlled tool use and auditable support decisions.
• Used Claude/OpenAI-backed reasoning flows to provide dispatch-ready recommendations before technician assignment, reducing MTTR and manual triage effort.

Key Contributions

• Built LangChain-based RAG pipelines over code, documents, and diagrams with controlled access patterns and Claude/OpenAI response generation options.
• Designed context-aware Q&A experiences for onboarding, support, and internal knowledge retrieval.
• Improved discoverability of technical knowledge by organizing ingestion, retrieval, and response quality around real team workflows.

Key Contributions

• Implemented LLM resume parsing, semantic search, RAG pipelines, tool-calling workflows, and AI-generated interview question automation.
• Designed matching flows that improved relevance between talent profiles, roles, and expert discovery journeys.
• Reduced manual screening effort through AI-assisted ranking, structured extraction, recruiter support workflows, and rapid product experimentation.

Key Contributions

• Developed Spring Boot and Node.js services to automate infrastructure provisioning, governance workflows, and internal platform operations across shared non-production and production environments.
• Built Angular dashboards and Vue.js/Nuxt.js admin views for environment visibility, access workflows, and infrastructure operations.
• Integrated AWS services (EC2, S3, IAM, Load Balancer) with PostgreSQL and Redis-backed orchestration while keeping cloud service abstractions portable for broader platform delivery.
• Used Cloudflare DNS, edge routing, caching, and Worker-oriented deployment patterns to improve delivery performance, environment isolation, and operational control for web-facing platform surfaces.
• Implemented Docker- and Kubernetes-oriented deployments with CI/CD guardrails (GitHub Actions, Jenkins) to improve release reliability and reduce manual deployment effort across platform operations.
• Helped standardize operational flows so cloud changes were more controlled, observable, and easier to support across environments.

Key Contributions

• Engineered Node.js payment services with RabbitMQ and Node-RED for event-driven, fault-tolerant processing across transaction, FX, settlement, and audit-related financial workflows.
• Built FX, holiday-calendar, and audit modules with MongoDB and Redis-backed workflows for resilient service operations and clearer domain separation.
• Improved transaction traceability through auditable event pipelines, service-level logging, and asynchronous processing patterns aligned to CQRS-style flows, reducing manual investigation effort during issue analysis.
• Strengthened reliability of high-volume payment operations through resilient integration, monitoring-conscious implementation, and recovery-oriented workflows.
• Contributed to backend patterns that prioritized traceability, controlled failure handling, and dependable financial processing.

Key Contributions

• Standardized Jenkins, AWS CodeDeploy, GitLab CI, and Docker-based delivery pipelines for repeatable releases across shared services and backend environments.
• Added Cloudflare-oriented deployment paths for edge-hosted web surfaces, including DNS coordination, cache-aware releases, and Worker/Pages delivery considerations.
• Reduced deployment errors, manual handoffs, and release friction by replacing ad hoc release steps with consistent build, validation, and deployment workflows.
• Improved delivery governance by formalizing build, validation, and deployment workflows.
• Supported engineering teams with more predictable release mechanics and stronger deployment discipline.

Key Contributions

• Built tenant-aware Angular and NestJS modules for enterprise SaaS workflows.
• Designed RBAC APIs, tenant isolation patterns, and maintainable service boundaries to support secure multi-tenant operations with DDD-aligned modularity.
• Deployed Dockerized services on AWS (EC2, S3, IAM, Load Balancer) with container orchestration readiness for scalable delivery.
• Applied Cloudflare edge delivery, DNS, and Worker-oriented patterns for faster static/API-adjacent routing, safer rollout control, and stronger client-facing performance.
• Standardized release pipelines and deployment workflows to reduce delivery friction across client environments.
• Helped shape a platform structure that balanced tenant customization, governance, and long-term maintainability across backend and frontend teams.

Key Contributions

• Designed a reusable NestJS and Express-based backend platform to accelerate delivery across multiple client implementations with shared authentication, API, and real-time communication patterns.
• Implemented JWT-secured REST APIs, reusable API templates, and standardized backend patterns for maintainability.
• Enabled WebSocket channels for real-time communication use cases across shared backend services.
• Reduced repeated backend setup work by turning common API concerns into reusable platform components and conventions adopted as the default starting point for new implementations.

Key Contributions

• Architected a NestJS and MongoDB server that supported feature toggles, permissioned changes, and policy-driven behavior.
• Created maintainable patterns for controlled configuration updates without requiring frequent backend code changes.
• Reduced turnaround for enterprise change requests while preserving governance and access control.
• Improved platform adaptability by separating business configuration concerns from core service implementation.

Key Contributions

• Built Angular Material and NestJS modules for enterprise-grade administration, access management, and policy enforcement.
• Implemented RBAC and ABAC enforcement patterns to support scalable authorization and governed operations.
• Created reusable admin components and multi-tenant-ready backend patterns for later platform expansion.
• Established a stronger foundation for secure user lifecycle management across enterprise workflows and internal platforms.

Key Contributions

• Built Angular dashboards for real-time monitoring of packaging line performance.
• Integrated REST and WebSocket data streams for live machine health, asynchronous telemetry handling, and downtime visibility.
• Implemented threshold-based alerting, centralized operational visibility, configurable charts, and monitoring-friendly telemetry flows for faster response.
• Improved incident detection and response times on production floors through observability-focused monitoring flows.
• Supported maintainable backend and UI patterns for operational analytics in industrial production environments.

Key Contributions

• Raspberry Pi firmware; Angular frontends; NodeJS/PHP backends with MySQL and HLS.
• JWT auth and load balancing scripts for streaming reliability.

Key Contributions

• Node.js REST ingestion, live dashboards, and alerts.
• Threshold-based monitoring for abnormal AQ levels.

Key Contributions

• PHP/MySQL auth and controlled content access.
• Usage monitoring and faculty-level reporting.

Key Contributions

• PHP/MySQL with Bootstrap/Materialize UI.
• Quiz engine (image/boolean/multi-select) and learner reporting.

Key Contributions

• Node.js + MySQL engine with reusable CRUD/report services.
• Feature changes through JSON configuration without redeploys.

Key Contributions

• PHP/MySQL backend with RBAC, validation, and moderation.
• Built complete UI with secure registration and job workflows.

Key Contributions

• Modular VB.NET + SQL Server components with optimized queries.
• Admin dashboards and consistency across departments.

Key Contributions

• VB.NET + SQL Server with normalized schemas and role-based modules.
• Result calculation, attendance tracking, and reporting with validation.