SGIndex 01 — Portfolio · 2026

Open to full-time roles Mumbai, India

Backend & Full-Stack EngineerBuilding software that is fast, secure, and hard to break.

I build software that is fast, secure, and hard to break — from backend systems and APIs to mobile apps and zero-knowledge workflows. I design systems that survive real-world constraints: privacy, performance, offline sync, auth, and messy workflows.

See selected work Contact me Resume

Role: Backend & Full-Stack; Engineer
Focus: Privacy · Geo · AI; Production systems
Stack: TS · Node · React; Postgres · Solidity

NOW

Building AnonHire and Lumina — privacy tech and offline-first GIS.Engineering intern at Vector Consulting Group · Jan 2026 — Present

See what I’m shipping

About

I build product-minded software with a bias for systems that are fast, secure, and easy to trust.

My favorite problems live below the pretty UI: auth, data modeling, database performance, cryptography, offline sync, and backend architecture. I like clean APIs, readable code, practical architecture, and interfaces that tell a story without making the visitor work too hard.

System design & backend architecture

Designing services, data models, and APIs that hold up as traffic, teams, and requirements grow.

Privacy & security-minded implementation

Zero-knowledge proofs, JWT-based auth, session revocation, encryption, and role-based access — built in by default, not bolted on.

Full-stack product shipping

From native mobile apps and offline sync to web dashboards, I take work end-to-end and ship things users actually use.

Selected work

Flagship projects that prove I can take work from idea to production.

A short, intentional list. Every project here is something I shipped or actively maintain — a mix of applied cryptography, offline-first mobile, and enterprise workflow software.

AnonHire

In active development

Oct 2025 – Present

Privacy-preserving employment credential verification using SSI, IPFS, smart contracts, and zero-knowledge proofs.

It combines product thinking, applied cryptography, and full-stack engineering around a real-world trust problem — credentials that employers can verify without doxxing the candidate.

Issuer / holder / verifier roles with end-to-end workflow
Encrypted off-chain payloads anchored to on-chain hashes
Revocation support via registry smart contracts on Sepolia
Zero-knowledge circuits (Circom + SnarkJS) for GPA and experience thresholds

Solidity
Circom
SnarkJS
Next.js
Express
PostgreSQL
IPFS
Docker

GitHub

Lumina

In active development

May 2026 – Present

An offline-first mobile GIS platform for fiber-optic deployment and field operations.

It shows I can build beyond standard web apps and handle maps, mobile constraints, and domain-specific workflows where connectivity is not guaranteed.

Offline-first capture with SQLite and a sync-replay engine
Geospatial backend on PostgreSQL + PostGIS (polygon access, cable routes, live tracking)
Hierarchical field-operations management for fiber assets
Native Android / iOS builds via React Native + Expo

React Native
Expo
NestJS
PostgreSQL
PostGIS
Redis
TypeScript

GitHub

Stratify

Built

2025

A role-based enterprise goal-tracking and performance management platform.

It proves I can model business logic, not just build isolated features — the kind of system that needs to stay correct as it grows.

Role-based flows for employees, managers, and admins
Goal lifecycle, approvals, and audit logs with cycle locking
Google OAuth + credential login via NextAuth
Validated server actions with Zod

Next.js
React
TypeScript
Express
Prisma
PostgreSQL
NextAuth
Zod

GitHub

DeepLog

2024

A Streamlit app that surfaces anomalous log lines using TF-IDF + DBSCAN clustering, visualised in 2D via PCA.

Python
Streamlit
scikit-learn
pandas
Matplotlib
Seaborn

GitHub

~/shresth — zsh

$ npx shresth

Shresth Gupta
backend · full-stack · mumbai

▸ anonhire   privacy-preserving creds
▸ lumina     offline-first gis
▸ stratify   goal tracking

github.com/shhresth

terminal-profile

2025

An interactive terminal-style profile card you can run with `npx shresth`.

TypeScript
Node.js
npm

GitHub

13 repos, more cooking — see all on GitHub

Experience

Outcome-focused work, not job-description bullets. A timeline of the systems I’ve shipped.

Software Engineering Intern
·Vector Consulting GroupCurrent
Jan 2026 – Present
Thane, MH
- Designed a SID-backed JWT authentication architecture enabling immediate session revocation, per-device logout, and secure refresh-token rotation via centralized session validation.
- Optimized PostgreSQL query workflows in enterprise manufacturing-planning systems by refactoring complex queries to reduce locking contention and report generation latency.
- Built and enhanced Python-based data processing and import pipelines for manufacturing-planning workflows using Django, Pandas, and PostgreSQL.
- Refactored shared React dashboard workflows to cut unnecessary API calls and improve frontend responsiveness without changing existing application behavior.
- Django
- PostgreSQL
- Pandas
- React
- JWT
Backend Developer Intern
·HarmoCare (formerly Harmonia)
Mar 2025 – Jun 2025
Mumbai, MH
- Architected backend systems in Node.js and Python designed to support 10,000+ concurrent users for healthcare-oriented applications.
- Improved database performance through schema design, indexing, and query tuning across MySQL and PostgreSQL.
- Implemented secure authentication and authorization flows using Express.js, JWT, and cryptographic techniques.
- Integrated AWS services such as RDS, DynamoDB, and S3 to improve reliability and deployment readiness.
- Node.js
- Express
- Python
- MySQL
- PostgreSQL
- AWS
Full Stack Developer Intern
·Shishya Academy
Mar 2023 – Jul 2023
Mumbai, MH
- Built a production-ready student management platform with React, Node.js, and MongoDB Atlas serving 1,000+ active users daily.
- Implemented authentication and role-based access control with JWT to replace paper-based administrative workflows.
- Designed RESTful APIs with strong error handling and documentation for easier integration.
- Shipped CRUD workflows, file handling, and real-time data sync across the stack.
- React
- Node.js
- MongoDB Atlas
- JWT

Skills

Grouped by what I actually do, not by what looks impressive on a badge wall.

A short list of the tools and stacks I reach for in production. I care more about using the right tool than collecting every possible one.

Languages

TypeScript
JavaScript
Python
SQL
Solidity
Java
C/C++

Backend

Node.js
Express
NestJS
Django
Flask
REST APIs
JWT
Auth flows

Frontend & Mobile

React
Next.js
React Native
Expo
Tailwind CSS
TypeScript

Data & Infra

PostgreSQL
PostGIS
Redis
MongoDB Atlas
Docker
AWS
Azure
Linux

Specialty

Zero-knowledge proofs
Self-Sovereign Identity
Offline sync
Geospatial systems
System design
Database tuning

Education

Trust-building context, not the main event.

B.Tech in Information Technology

Shah and Anchor Kutchhi Engineering College

Sep 2023 – Jul 2026·8.95 CGPA

Diploma in Computer Engineering

Government Polytechnic, Mumbai

Oct 2020 – Aug 2023

Contact

Let’s build something that ships and survives production.

Have a role, product, or idea that needs clean engineering? I’m open to full-time opportunities and interesting collaborations. I usually reply within a day.

Email me View GitHub Open LinkedIn Open resume

Mumbai, India·shresthgupta106@gmail.com·+91 7506992248

Backend & Full-Stack EngineerBuilding software that is fast, secure, and hard to break.

I build product-minded software with a bias for systems that are fast, secure, and easy to trust.

System design & backend architecture

Privacy & security-minded implementation

Full-stack product shipping

Flagship projects that prove I can take work from idea to production.

AnonHire

Lumina

Stratify

DeepLog

terminal-profile

Outcome-focused work, not job-description bullets. A timeline of the systems I’ve shipped.

Software Engineering Intern

Backend Developer Intern

Full Stack Developer Intern

Grouped by what I actually do, not by what looks impressive on a badge wall.

Languages

Backend

Frontend & Mobile

Data & Infra

Specialty

Trust-building context, not the main event.

B.Tech in Information Technology

Diploma in Computer Engineering

Let’s build something that ships and survives production.