> Full-Stack Lead Developer

I build scalable products and AI-powered experiences that move businesses forward.

I’m Nirmal Negi, a full-stack developer with 4+ years of experience designing resilient web systems, leading engineering teams, and shipping AI-enabled workflows.

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  • 0+Years
  • 0Live tenants
  • 0%Query gains
.NET Qdrant CI/CD Angular
{ } </> SQL AI N

Nirmal Negi

Lead Full-Stack Developer

Open to roles
▸ currently tuning SQL stored procedures
.NET MVCAngularReactNode.jsTypeScript tRPCMySQLPostgreSQLDrizzle ORMQdrant GeminiOpenAILangfuseAWSCI/CD LaravelDjangoReact NativeCypress
01 · About

Engineering systems that balance speed, scale, and clarity.

I design and build web applications across the .NET, React, and Node.js ecosystems, helping startups and high-impact teams turn business ideas into production-ready systems.

My work focuses on clean architecture, database optimization, DevOps maturity, and AI-powered product experiences using RAG, embeddings, and LLM integrations.

~/nirmal

              

            

            

              

                0+
                Years in product engineering
              

              

                0
                Developers mentored and led
              

              

                0
                Live multi-tenant deployments
              

              

                AI
                RAG, LLM and vector workflows
              

            

          

        


        

          

            02 · Impact
            
What changed because I was there.

          

          

            

              Query performance
              up to 0%
              
faster SQL stored procedures, removing critical bottlenecks in Lighthouse.

            

            

              Deploy time
              

                

                  Manual FTP
                  

                  ~20 min
                

                

                  CI/CD
                  

                  < 5 min
                

              

              
Replaced error-prone FTP deploys with pipelines and a change-request framework (~75% faster).

            

            

              Architecture
              0 → 0
              
single-tenant to multi-tenant: 11 live tenants across Indian states on shared infrastructure.

            

            

              Consolidation
              0 → 0
              
admin systems merged when Pathways joined Lighthouse, ending duplicate data maintenance.

            

          

        


        

          

            03 · Experience
            
Career highlights

          


          

            


            

              
Feb 2025 – Present

              

                
Lead Full-Stack Developer

                
Lend-A-Hand India

                
Lighthouse | .NET (MVC), Angular, MySQL, AWS, CI/CD

                
    
                  
  • Joined as the first in-house developer and built and led an engineering team of 3 developers.
    • 
                  
  • Architected the migration from single-tenant to multi-tenant, now running 11 live tenants.
    • 
                  
  • Merged the Pathways admin portal into Lighthouse, unifying two admin systems into one.
    • 
                  
  • Optimized SQL stored procedures for up to 90% faster queries.
    • 
                  
  • Built CI/CD pipelines, cutting deploys from ~20 min to under 5, and ran DevOps for tenant provisioning.
    • 
                

                
Kaushal Saathi | Backend · Node.js, Express, tRPC, TypeScript, MySQL, Drizzle ORM, Qdrant, Gemini

                
    
                  
  • Worked on an AI-powered teaching companion for Grades 6–8 that generates lesson plans and coaches teachers.
    • 
                  
  • Built a RAG pipeline grounding LLM output in curriculum textbooks with Qdrant embeddings.
    • 
                  
  • Developed the AI chat / coaching feature with automatic grade detection and context injection.
    • 
                  
  • Integrated Langfuse for LLM tracing and fixed a token/cost-accounting bug.
    • 
                

              

            


            

              
Jun 2022 – Feb 2025

              

                
Full-Stack Developer

                
ColoredCow

                
Laravel, PHP, React.js, Angular, .NET, Django, React Native

                
    
                  
  • Delivered full-stack features across NGO and social-impact products, from requirements to release.
    • 
                  
  • Integrated REST APIs and third-party services across web and React Native apps.
    • 
                  
  • Improved UI/UX quality and reliability by resolving bugs and writing automated tests.
    • 
                

              

            

          

        


        

          

            04 · Case Studies
            
How the big pieces work.

          


          

            

              

                Lighthouse
                
One platform, eleven live tenants

                
I moved Lighthouse from one deployment per customer to a shared multi-tenant core. Each tenant runs isolated on shared infrastructure, and I handle provisioning, configuring and deploying new tenants.

              

              

                
Lighthouse
core

                
T1

                
T2

                
T3

                
T4

                
T5

                
T6

                
T7

                
T8

                
T9

                
T10

                
T11

              

              
.NET MVCAngularMySQLAWS

            


            

              

                Kaushal Saathi
                
Grounded lesson plans with RAG

                
Curriculum textbooks are chunked, embedded into Qdrant, and retrieved by grade and semantic similarity, so Gemini writes lesson plans that match the curriculum and hallucinate less.

              

              
    
                
  1. 📚Curriculum PDFsGrades 6–8
    2. 
                
  2. 
                
  3. ✂️Chunk + embedembeddings
    4. 
                
  4. 
                
  5. 🧭Qdrantgrade + semantic
    6. 
                
  6. 
                
  7. ✨Geminicontext injected
    8. 
                
  8. 
                
  9. 📝Lesson plantraced in Langfuse
    10. 
              

              
Node.jstRPCQdrantGeminiLangfuse

            

          

        


        

          

            05 · Projects
            
Selected product work

          


          

            

              

                
                
Lighthouse

                Lead · Architecture
              

              
Multi-tenant vocational education platform running 11 live tenants across Indian states on shared infrastructure.

              
11 live tenants90% faster queries~75% faster deploys

              

                .NET
                Angular
                MySQL
                AWS
              

            


            

              

                
                
Kaushal Saathi

                Backend · AI
              

              
AI-enabled teaching companion that grounds lesson generation in curriculum books using RAG and vector search.

              
RAG pipelineLLM tracing

              

                Node.js
                Qdrant
                Gemini
              

            


            

              

                
                
Wisdom Circle

                Frontend
              

              
Global platform for retired professionals to connect with meaningful engagements through responsive UI and forms.

              

                Vue.js
                Nuxt.js
                Tailwind
              

            


            

              

                
                
Mentor Together

                Full-stack
              

              
Mentorship platform with UI improvements, troubleshooting, and deployment support across the stack.

              

                React
                Django
                PostgreSQL
              

            


            

              

                
                
ColoredCow Portal

                Full-stack
              

              
Clean, responsive company portal optimized for a seamless experience across all devices.

              

                Laravel
                PHP
                CSS
              

            

          

        


        

          

            06 · Skills
            
Technology stack

          


          

            

              
{ }Languages

              

                JavaScript
                TypeScript
                C#
                PHP
                Python
                Java
                SQL
              

            

            

              
◧Frontend

              

                React.js
                React Native
                Angular
                Tailwind
                Bootstrap
              

            

            

              
⚙Backend

              

                Node.js
                .NET MVC
                Django
                Laravel
                REST APIs
                tRPC
              

            

            

              
⛁Databases

              

                MySQL
                PostgreSQL
                Drizzle ORM
                Stored procedures
              

            

            

              
✦AI / LLM

              

                RAG
                Qdrant
                Embeddings
                Gemini
                OpenAI
                Langfuse
              

            

            

              
☁DevOps & Tools

              

                AWS
                CI/CD
                Git
                Cypress
                Postman
                Figma
              

            

          

        


        

          

            07 · Education
            
Academic background

          

          

            

              
B.Tech in Computer Science & Engineering

              
THDC Institute of Hydropower Engineering & Technology, Uttarakhand

            

            2018 – 2022