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Sumit Sakpal

Sumit Sakpal

Backend Engineer

Remote (global)

LinkedIn profile available to registered employers

Spoken: IntermediateWritten: Intermediate

Self-assessed English levels

Projects

AI Article Summarizer & Chrome Extension

Privacy-First Local AI Engine: Developed a Chrome Manifest V3 extension powered by local LLM (Llama 3.2 via Ollama) and LangChain, executing full document summarization & Hindi/English translation with $0$ API cost. Long-Text Chunking Architecture: Designed backend text-splitting pipeline using LangChain RecursiveCharacterTextSplitter to process large web articles without exceeding LLM context limits or slowing down execution. Interactive Audio & Persistence: Integrated Web Speech Synthesis for Play/Pause/Resume voice controls, dynamic MP3 generation/download, and state persistence using chrome.storage.local.

LangchainNode.jsExpressTypescriptReactManifestv3

Solar CRM System

Designed and developed an enterprise-grade Solar CRM system aimed at managing the entire lifecycle of solar installation projects—from lead acquisition to post-installation customer support. Key Modules & Contributions: Lead Capture & Distribution: Integrated Facebook Webhooks and WhatsApp APIs to capture lead data in real time. Implemented a Round-Robin distribution algorithm to allocate leads fairly to state-level supervisors. Smart Dynamic Documentation Module: Developed a state-aware PDF generation tool that automatically tailors required legal documents according to individual state regulations. Integrated dynamic digital signature and stamp placement (for owners, supervisors, and vendors) directly inside PDFs. Inventory & Installation Tracking: Worked on the 'Inwards' module to manage solar equipment inventory alongside real-time tracking for installation milestone updates. Post-Sales Ticketing System: Built a robust ticket management module to handle maintenance requests.

ReactNodeMongoDBExpress
Stack & AI tools
LangChainLlamaNode.jsRAGMongoDBPostgresExpressNestJSFastAPIClaudeOpenAI APILangGraphLangSmithMCPVector DBsGitHub CopilotGraphQLCursorOllamaVs coden8nGemini
Express interest
Sumit Sakpal - Backend Engineer | ResumeON