NKNitesh KumarSoftware Developer
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Software Engineer · Distributed Systems · AI

I build scalable software & AI powered products.

Building scalable systems, data pipelines, and AI-powered products that turn complex problems into reliable software.

Full-Stack Software Developer with 3+ years of professional experience, focused on scalable web applications, backend systems, and AI-powered products.

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Open to opportunities
Currently working at
C

Credence Data

Software Developer

Building
▣

DocMind AI

AI-Powered Document
Intelligence Platform

Node.jsTypeScriptNext.jsAWS
Nitesh Kumar profile
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3+Years Experience
15+Projects Built
80Cr+Records Processed
5+Certifications
01 / About

I don't just write code. I build systems.

Full-Stack Software Engineer with 3+ years of experience building scalable, high-performance microservices and AI-powered applications using React.js, Node.js, and Python. Experienced in backend architecture, REST APIs, cloud solutions, distributed data processing, and performance optimization. I enjoy working across the stack—from APIs and data pipelines to polished interfaces and AI-powered workflows.

02 / Experience

My professional journey

View Full Resume
Aug 2025 — Present

Software Developer

Interlinkages India Pvt. Ltd. (Credence Data)

Architecting configurable multi-region document management and evaluation platforms, scalable REST APIs, streaming data pipelines, background jobs, and production services. Built an evaluation workflow that reduced report generation from ~2 hours to under 10 seconds.

  • Multi-region AWS S3 document routing based on entity configuration
  • GB-scale Node.js streaming pipeline with concurrency, backpressure, retries, and scheduled execution
  • MongoDB aggregation tuning, indexing, caching, and streaming for backend performance
Node.jsExpress.jsSails.jsTypeScriptMongoDBAWSDocker
Jul 2023 — Aug 2025

Software Developer

Fairassets Technologies India Pvt. Ltd. (Faircent)

Built scalable fintech backend services, REST APIs, internal administrative platforms, high-volume streaming pipelines, and performance improvements across customer onboarding, payments, EMI, credit, and operational workflows.

  • Integrated DigiLocker eKYC and Karza PAN verification APIs
  • Engineered a Node.js streaming pipeline to process 80+ crore records from 814 files with minimal memory
  • Built APIs for payment processing, EMI management, foreclosure, SOA, credit reports, search, and customer profiles
Node.jsReact.jsNext.jsMongoDBRedisExpress.jsJavaScript
Jan 2023 — Jul 2023

Software Engineer Intern

Fairassets Technologies India Pvt. Ltd. (Faircent)

Developed REST APIs and internal operational tools while improving backend performance through query optimization and concurrent Promise-based processing.

  • Optimized RESTful APIs and improved response times by 10%
  • Built an internal EMI Collection Dashboard with CRUD operations
  • Used JavaScript Promise APIs for concurrent processing, reducing API response time by 50%
Node.jsJavaScriptPHPAWS SNSREST APIs
03 / Selected Work

Things I've built

View All Projects
01
AI / Full Stack

DocMind AI

Full-stack AI-powered document intelligence platform using RAG, vector embeddings, similarity search, and contextual LLM responses.

Next.jsTypeScriptPrismaPostgreSQLpgvectorOpenAIOllama
02
Full Stack

E-Commerce

Full-stack e-commerce platform with secure authentication, role-based authorization, product and order management, and business analytics.

TypeScriptMongoDBExpress.jsNext.jsNode.jsReduxFirebaseChart.js
04 / Tech Stack

Technologies I work with

Languages
JavaScript
TypeScript
Java
Python
SQL
Frontend
React.js
Next.js
HTML5
CSS3
MUI
Backend
Node.js
Express.js
Sails.js
Django
REST APIs
AI / LLMs
RAG
Agentic AI
Prompt Engineering
Vector Databases
GPT / Claude
Databases
MongoDB
MySQL
Redis
PostgreSQL
Cloud & DevOps
AWS
Docker
Jenkins
Git
Linux
Bitbucket
Engineering
System Design
Distributed Systems
Caching
Data Streams
Performance Optimization
05 / Certifications

Certifications & learning

Java Data Structures and Algorithms Masterclass

Certification

Learn Ethical Hacking From Scratch

Certification

Exploratory Data Analysis for Machine Learning

Certification

Supervised Machine Learning: Regression

Certification

Java (Basic) Certificate

Certification

06 Freelance / Work With Me

Have an idea? Let's build it.

I help startups and businesses build scalable web applications, powerful APIs, and modern digital experiences.

Web Development

Responsive websites and modern interfaces using React and Next.js.

Backend & APIs

Scalable Node.js services, REST APIs, authentication, and integrations.

Performance Optimization

Improve application speed, caching, and overall performance.

Full-Stack Development

End-to-end applications connecting frontend, backend, and databases.

Have a project in mind?

Tell me what you're building and let's talk.

Discuss Your Project
07 Teaching / Mentorship

Learn with me. Grow with confidence.

I help aspiring developers strengthen their coding fundamentals, prepare for technical interviews, and build real-world applications through practical learning.

Programming Languages

Build strong programming fundamentals with practical examples and clean coding practices.

Data Structures & Algorithms

Master problem-solving patterns, data structures, algorithms, and coding interview questions.

System Design

Learn OOP, SOLID principles, LLD, HLD, APIs, caching, and scalable architecture.

MERN Stack Development

Build end-to-end web applications with MongoDB, Express.js, React.js, and Node.js.

Python Backend Development

Develop backend applications and REST APIs using Django, FastAPI, and Flask.

AI / LLM Integration

Explore LLM APIs, RAG workflows, and AI-powered features in full-stack applications.

Ready to level up your skills?

Let's discuss your learning goals, interview preparation, or the project you want to build.

Connect for Mentorship
09 / Contact

Let's build something amazing together.

I'm open to new opportunities, interesting products, and challenging engineering problems.

Get In Touch