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Manish Saini

@manishsaini3

Message

Senior Software Engineer building high-throughput MERN systems and production GenAI agentic workflows.

India

Message

What I'm looking for

I’m looking for a Senior role where I can ship production GenAI systems with robust LLM orchestration and RAG, plus evaluation, observability, and cost optimization—while building scalable, event-driven backend services in Agile teams.

I’m a Senior Software Engineer with 6 years of experience designing and scaling high-throughput, distributed web applications on the MERN stack and Node.js microservices. I specialize in event-driven architecture, real-time data pipelines, hybrid semantic search, and cloud-native systems on AWS.

Right now, I’m building production GenAI systems—LLM orchestration, agentic workflows (LangChain / LangGraph), RAG pipelines, vector search, and MCP tool integrations. I focus on LLM evaluation, observability (LangSmith/OpenTelemetry), and cost optimization.

I’ve led end-to-end product delivery in Agile environments and team settings, including owning architecture from HLD/LLD to production rollout. In my recent work, I combined vector + lexical hybrid search to cut candidate-match time by ~40%, built agentic tool-calling workflows with human-in-the-loop validation, and reduced LLM spend ~30% through semantic caching and versioned model routing.

Experience

Work history, roles, and key accomplishments

Current

Senior Software Engineer

Current

MetaDesign Solutions

Mar 2024 - Present (2 years 5 months)

Owned end-to-end architecture of a MERN plus microservices cybersecurity platform, including HLD/LLD through production rollout. Built hybrid semantic search and agentic AI workflows with observability and cost optimizations, and engineered event-driven pipelines for low-latency synchronization.

MongoDB Elasticsearch Redis Kafka AWS LangGraph Docker Kubernetes Microservices Event Driven Architecture Reciprocal Rank Fusion Reranking Change Streams Pub Sub JWT RBAC Cloudwatch Grafana

Senior Software Engineer

Edfora Infotech Pvt. Ltd (FIITJEE)

Jun 2022 - Mar 2024 (1 year 9 months)

Built and improved internal education platforms including a ticket-management helpdesk and a large-scale class scheduling system. Engineered analytics and caching/queue-based course planning components to improve resolution time, retrieval latency, and overall performance.

MongoDB Redis Elasticsearch Socket.IO Docker RBAC WebSockets MongoDB Aggregation Pipelines Materialized Views Caching

Software Developer (Full-Stack)

EdStem Technologies

Sep 2020 - Jun 2022 (1 year 9 months)

Developed end-to-end features for an on-demand warehousing marketplace, including interactive dashboards, booking workflows, JWT authentication, and S3-backed document handling. Refactored a legacy codebase with performance improvements and built RESTful APIs for high daily transaction volume.

REST APIs MongoDB Redis JWT Lazy Loading Query Optimization S3