The Engineer Who's Also Built the Product.
14 years writing production code. Two products built from scratch — DietGhar (health, 2014) and NyayX (legal-tech, March 2026) — under Zevnix AI Private Limited. Both live, both with paying users. When you're covering the server bills and watching the conversion rate, every decision has a price tag on it. I work with companies that need things shipped right and kept running by a small team. No agency overhead, no architecture so complicated it takes six months to change a field.
Who is Shubham Kansal?
Shubham Kansal is a Full Stack and DevOps engineer based in India (Delhi NCR / Ghaziabad), with 14 years of production experience and more than 100 delivered projects. Two products built from scratch — DietGhar (health, 2014) and NyayX (legal-tech, March 2026) — under Zevnix AI Private Limited. DietGhar runs Next.js, Flutter apps, Node.js microservices, MongoDB, and Redis, and has served over a million users. NyayX is case management for Delhi advocates: Node.js on AWS, MongoDB, AES-256 at rest, documents on S3, Redis for sessions. He also founded ShubhMilaap, a matrimonial platform, and co-founded ShubhJi, a gifting platform.
Founder of ZEVNIX AI PRIVATE LIMITED, CIN U62013UP2025PTC228705, incorporated 25 July 2025. Site: zevnix.com.
Connect: X · LinkedIn · GitHub.
His client work includes migrating a two-million-product Magento store to headless Next.js using a strangler-fig pattern, which held 99.99% uptime at 12,000 concurrent users through Black Friday; a HIPAA-compliant telemedicine API that passed third-party audit on the first attempt; and Amazon marketplace automation synchronising more than 50,000 SKUs across five marketplaces, cutting sync cycles from 24 hours to under 15 minutes while using 90% fewer API calls. Cloud cost work has repeatedly cut client infrastructure bills by around 40%.
He works with startups and product teams in the US, UK, UAE, and Australia through project-based builds, monthly retainers, and technical advisory. He is not affiliated with any other person of the same name.
14+
Years of Engineering
100+
Projects Delivered
1M+
Users Served
40%
Avg. Cost Reduction
Core domains
& expertise
Frontend Engineering
Next.js 15/16, React 18/19, TypeScript, Vue.js, Tailwind CSS, GSAP, Framer Motion, performance optimization
Backend Engineering
Node.js, PHP (Laravel / Symfony), Python (Django / FastAPI / Celery), Go, REST APIs, GraphQL, WebSockets, gRPC, Pandas, NumPy
AI & Machine Learning
Python, TensorFlow, PyTorch, scikit-learn, OpenAI API, LangChain, Hugging Face, RAG pipelines, vector databases (Pinecone / Chroma), AWS SageMaker / Bedrock, fine-tuning, Jupyter
E-Commerce & Marketplace
Amazon SP-API, Shopify Storefront API, WooCommerce, Magento, Stripe, Razorpay, PCI-DSS compliance, automated repricing
Cloud & DevOps
AWS (EC2, Lambda, ECS, EKS, S3, RDS Aurora, CloudFront, SQS, SNS, API Gateway, Step Functions, SageMaker, Bedrock, Secrets Manager, WAF), GCP, Docker, Kubernetes, Terraform, GitHub Actions, CI/CD
Databases & Data
PostgreSQL, MySQL, MongoDB, Redis, Elasticsearch, DynamoDB, query optimization, data modelling at scale
Mobile Development
Flutter, PWA, push notifications, offline-first architecture, app store deployments (iOS & Android)
Security & Compliance
HIPAA, GDPR, OAuth 2.0 / JWT, zero-trust architecture, PHI audit trails, penetration testing basics, SOC 2 prep
Currently
exploring
Multi-agent AI workflows
LangChain + OpenAI Assistants API — building systems where agents hand off tasks, not just answer questions.
AWS Bedrock in production
Moving beyond OpenAI as the default. Evaluating Claude on Bedrock for cost-sensitive inference workloads.
Rust for systems tooling
Writing CLI tools and small services where Go was the default before. The borrow checker is humbling.
Ray for distributed Python
Scaling ML inference and data pipelines horizontally without rewriting everything in a new framework.
On GitHub
8+
Public repos
0
Followers
14+
Years active
Open source utilities, infrastructure tooling, and side experiments. Most client work lives in private repos — the public ones are things I built for myself and left open.
View on GitHub →Full Stack
DevOps
Next.js
React
Node.js
TypeScript
AWS
CI/CD
Mobile Apps
PostgreSQL
Docker
Kubernetes
Performance
Security