Open to opportunities

Sumit Gupta

Senior Software Engineer

Building scalable Full Stack Systems, multi-tenant SaaS platforms, and secure Identity & Access Management (IAM) solutions.

Engineering Trust. Scaling Innovation.

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About Me

Building systems that scale and secure.

Software Engineer with 4+ years of experience building high-performance cloud systems and enterprise-grade security solutions. Currently working at EduTrend (multi-tenant education platform) and Saz Tech (Zoho development), with an MS in Computer Science from the University at Buffalo. I specialize in Full Stack Development (TypeScript, Java, Spring Boot, React, Next.js), Identity Protocols (SAML, OAuth 2.0, OIDC), and multi-tenant SaaS architecture.

Years Experience

Engineers Led

10+

SaaS Products

40%

Efficiency Gain

Experience

Where I've worked.

Saz Tech

Zoho Developer

April 2026 – Present

Developing and customizing Zoho CRM and Zoho Creator applications to streamline business workflows.
Building Deluge scripts and custom functions to automate processes across the Zoho ecosystem.
Integrating Zoho apps with third-party services via REST APIs and webhooks.

Zoho CRMZoho CreatorDelugeREST APIsJavaScript

EduTrend

Software Engineer

Feb 2026 – Present

Built features for a multi-tenant education platform using TypeScript, GraphQL, MongoDB, Redis, and Clerk, with strict tenant-scoped data access and RBAC.
Implemented dynamic form builder workflows across GraphQL resolvers, Mongoose services, and Expo React Native, enabling configurable data collection for education teams.
Hardened tenant and organization lifecycle operations by improving DB connection handling, safe delete flows, and cleanup for isolated tenant databases in a multi-tenant architecture.
Improved backend observability with structured CloudWatch-ready logging, request context propagation, and sensitive-field redaction for compliance-conscious production debugging.
Expanded automated test coverage with Jest unit/integration tests and supported local development with a Docker-based full-stack setup.

TypeScriptGraphQLMongoDBRedisClerkReact NativeJestDockerCloudWatch

miniOrange

Senior Software Engineer

July 2021 – July 2024

Led a 12-member team to deliver 10+ cloud-based Shopify apps; owned planning, code reviews, releases, and production support in an Agile/Scrum setup.
Implemented enterprise IAM using SAML, OAuth 2.0, and JWT, reducing onboarding friction and improving security posture for customer deployments.
Built and shipped Shopify App Store products (Inventory Sync, Salesforce Sync) using Java and Spring Boot, supporting high-volume scheduled syncs and external API integrations.
Resolved recurring production incidents (DB connection timeouts, Memcached crashes, thread/concurrency issues, GraphQL memory leaks), cutting on-call escalations by improving stability.
Automated CI/CD and Docker deployments on AWS behind a load balancer, reducing release effort and enabling faster rollbacks during incidents.
Wrote Python scripts for data migrations, batch jobs, and third-party API integrations, automating recurring operational tasks and reducing manual intervention.

JavaSpring BootPythonRedisGraphQLPHPAWSDockerKubernetes

ServiceNow

Software Development Intern

July 2020 – Nov 2020

Integrated ML-driven enhancements into ServiceNow Universal Request using JavaScript (client) and Java (server) APIs, improving request routing and automation.
Delivered mobile UI improvements using HTML5, CSS3, and ServiceNow UI frameworks, improving usability across common request flows.
Built automated regression tests with Selenium and JUnit, increasing test coverage and reducing manual QA effort.

JavaJavaScriptHTML5CSS3SeleniumJUnit

Projects

Things I've built.

Event-Driven FinTech Microservices

FinCore

A high-performance fintech platform built with NestJS and Next.js. Features API Gateway routing, Kafka-based event streaming, and a double-entry ledger. Implements robust fraud detection and idempotency keys (Redis) for secure transfers.

NestJSNext.jsKafkaPostgreSQL+2

SaaS Backend with Strict Isolation

Multi-Tenant Support Platform

A scalable multi-tenant backend using Spring Boot 3. Enforces strict tenant isolation, RBAC, and event-driven workflows via Kafka. Includes full-text search (Postgres FTS), attachment storage (MinIO), and observability (OpenTelemetry).

Spring Boot 3PostgreSQLMinIOKafka+1

Full-Stack E-Commerce App

Radiant Clothing

A modern e-commerce platform built with React, Redux, and GraphQL. Features secure authentication (Firebase), payments (Stripe), and scalable state management (Redux-Saga). Deployed on VPS.

ReactReduxGraphQLFirebase+1

Interactive Browser Game

Monster Mania

A browser-based interactive game built with modern web technologies.

JavaScriptHTML5CSS3

Node.js & Socket.io Chat Platform

Real-time Chat Application

A real-time communication app built with Node.js and Socket.io. Supports multi-room chat, location sharing, and instant notifications. Templating via Mustache.js and tested with Mocha/Chai.

Node.jsExpressSocket.ioMocha+1

Skills

Technical arsenal.

Languages

JavaTypeScriptJavaScriptPythonPHPSQLC++Bash

Frontend & Mobile

ReactNext.jsExpo React NativeReduxRedux-SagaTailwind CSSHTML5CSS3Mustache.js

Backend & Architecture

Spring BootNestJSNode.jsExpressGraphQLREST APIsMicroservicesAPI GatewayMulti-tenancyEvent-drivenWebhooksRBAC

Identity & Security (IAM)

SAML 2.0OAuth 2.0OIDCJWTPKCESCIM 2.0ClerkSSOMFA

Data & Messaging

PostgreSQLMongoDBRedisKafkaMemcachedFirebaseMinIOElasticsearchFull-Text SearchOutbox PatternIdempotency

Cloud & DevOps

AWSAzureDockerKubernetesTerraformGitHub ActionsJenkinsNginxCI/CDFlyway

Testing & Observability

JUnitJestSeleniumTestcontainersMochaOpenTelemetryPrometheusCloudWatchPinoPostmanSwagger

Get In Touch

Let's build something secure & scalable.

I'm currently open to new opportunities. Whether you have a project in mind or just want to chat — my inbox is always open.

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