Available for selected builds

Full-stack systems / Applied AI / Cybersecurity

Sumit Kumar Das

I engineer production systems for government organisations, international brands and startups, and own them end to end: development, deployment and maintenance.

50+ organisations 9 domains Now @ Futures First

Scroll to navigate the system

Engineering across every layer

01 0

years building and shipping production systems

02 0

organisations served across 9 domains

03 0

letters of recommendation from startups and MNCs

04 0

open-source PRs merged or recognised in Node.js, CPython, Ubuntu and Spring

Deployment field / selected impact

Evidence before
experiments.

Platforms I have led as technical lead or built end to end, now running in production across health-tech, voice AI, education, ad-tech, government and commerce.

24Rx Exchange - 24rxexchange.com
01

Health-tech / B2B marketplace

Technical lead

24Rx Exchange

Technical lead for the world's only med-trade platform.

24Rx Exchange is a B2B pharmaceutical trading platform that connects verified sellers and traders to rare and high-demand medicines. I lead its engineering, from architecture and trading flows to releases and production operations.

Contribution

Technical leadership, platform architecture, trading workflows, deployment and maintenance

  • HEALTH-TECH
  • B2B MARKETPLACE
  • TRADING FLOWS
  • PRODUCTION
Visit 24Rx Exchange
Opshiva - opshiva.com
02

Agentic voice AI

Technical lead

Opshiva

A voice-AI platform deployed across government and real-estate organisations.

Opshiva runs autonomous voice and chat agents that resolve service and grievance requests end to end, 24x7, in 11 Indian languages. As technical lead I owned the agent architecture, call flows, tool-call validation and production rollout.

Contribution

Technical leadership, voice-agent architecture, integrations and deployment

  • VOICE AI
  • AGENTS
  • B2G
  • REAL ESTATE
Visit Opshiva
IEM-UEM Group, Kolkata - dean.iem.edu.in
03

University systems

Technical lead

IEM-UEM Group, Kolkata

Technical lead for AI, web and application systems across a university group.

Engineering AI, web and application-based solutions for university systems, internal tools and technology aids, including the Office of the Dean (Academics) portal, institutional websites and a retrieval-augmented assistant built into the IEM website.

Contribution

Technical leadership, web platforms, RAG assistant, internal tools and deployment

  • UNIVERSITY SYSTEMS
  • RAG
  • WEB PLATFORMS
  • INTERNAL TOOLS
Visit the Dean (Academics) portal
ShikshaCloud - shikshacloud.com
04

Ed-tech SaaS

Live at multiple schools

ShikshaCloud

An all-in-one school management platform, built from scratch and running live.

ShikshaCloud runs day-to-day operations at Patna Girls High School and Doon Public School: role-based administration and repeatable school workflows on one multi-tenant platform.

Contribution

Product engineering, backend modules, role workflows and rollout

  • SAAS
  • RBAC
  • MULTI-TENANT
  • OPERATIONS
Visit ShikshaCloud
Campaxe / EaseAdd - easeadd.com
05

AI marketing / Ad-tech

Technical lead

Campaxe / EaseAdd

Technical lead at a startup rated Tier 1 in the Google Partner program.

EaseAdd is an AI marketing command center that watches every campaign, finds the right influencers and guards the brand around the clock. I led the technical delivery across the product, data integrations and deployment.

Contribution

Technical leadership, analytics product, integrations and cloud deployment

  • AI MARKETING
  • ANALYTICS
  • INTEGRATIONS
  • CLOUD
Visit EaseAdd
Barh Nagar Parishad - barhnp.bihar.gov.in
06

Government AI system

Citizen support

Barh Nagar Parishad

An AI support layer designed for a municipal public-service context.

Worked on a B2G AI support system for Barh Nagar Parishad, translating civic information and service needs into a more navigable citizen-facing experience.

Contribution

Applied AI, service flows, public interface and production integration

  • B2G
  • AI SUPPORT
  • CIVIC UX
  • KNOWLEDGE
Visit Barh council
Paws for Greens - pawsforgreens.com
07

International D2C commerce

Commerce engineering

Paws for Greens

Brand, catalogue and conversion systems for a growing pet-wellness business.

Commerce engineering for an international-facing plant-based pet wellness brand, balancing storefront presentation with maintainable product operations.

Contribution

Shopify development, commerce UX, integrations and storefront operations

  • SHOPIFY
  • D2C
  • INTEGRATIONS
  • OPERATIONS
Visit Paws for Greens
Dt. Rupali Singh - dietitianrupalisingh.com
08

Health-tech / Clinical nutrition

Client build

Dt. Rupali Singh

A conversion-first website for a clinical dietitian with 10,000+ clients guided.

Designed and built the practice's web presence: services, programmes, client stories and free-consultation booking for online clients across India and home visits in Patna.

Contribution

UI design, frontend engineering, SEO, booking flow and deployment

  • HEALTH-TECH
  • DESIGN
  • SEO
  • BOOKING
Visit dietitianrupalisingh.com
Patna Medical College & Hospital - patnamedicalcollege.edu.in
09

Institutional healthcare

Public web + administration

Patna Medical College & Hospital

High-trust information architecture for a major medical institution.

A public and administrative web system where departments, notices, staff information and daily content operations must remain clear under institutional scale.

Contribution

Full-stack web, CMS workflows, dashboards and deployment support

  • PUBLIC WEB
  • CMS
  • ADMIN
  • DEPLOYMENT
Visit PMCH
End-to-end ownership - 50+ organisations
10

Government, brands and startups

9 domains

End-to-end ownership

From development to deployment and maintenance, across 50+ organisations.

Systems used by government organisations, international brands and startups across ed-tech, health-tech, B2B, B2C, fashion, retail and more, delivered independently and through UrsDigitally, Agadhanimus, Altiedge and partner teams.

Contribution

Full-stack delivery across Shopify, WordPress, October CMS, Laravel, Next.js and APIs

  • GOVERNMENT
  • INTERNATIONAL BRANDS
  • STARTUPS
  • FULL-STACK
Trace the experience

System architecture / six layers

Not a stack list.
A field of responsibility.

The advantage is not knowing many tools. It is being able to make the right decision where product, infrastructure and risk intersect.

  1. 01

    Full-stack product engineering

    Web apps, dashboards, ERPs and API platforms

    React, Next.js, Astro, Node, Nest, Express, Spring Boot, ASP.NET Core and FastAPI for end-to-end product builds.

  2. 02

    Commerce and CMS engineering

    Shopify, WordPress, October CMS and Laravel

    Storefronts, custom themes, CMS workflows, Shopify app work, B2B flows, WooCommerce and headless commerce migrations.

  3. 03

    Legacy modernization

    Classic systems to headless architectures

    ASP.NET MVC, older CMS builds and monolithic workflows moved into cleaner API-driven systems with practical rollout paths.

  4. 04

    Applied AI and automation

    RAG, NLP, agents and rapid prototyping

    Generative AI, ML pipelines, transcription, summarization, multi-agent automation and product prototypes that move from demo to deployment.

  5. 05

    Cloud, DevOps and scale

    Deployment, observability and queues

    AWS, GCP, Docker, Kubernetes, Nginx, CI/CD, Kafka, RabbitMQ, caching and horizontal or vertical scaling decisions.

  6. 06

    Security-minded engineering

    VAPT, OWASP and secure delivery

    Cybersecurity foundation from IIIT Delhi work, VAPT exposure, secure auth, hardening, risk assessment and production hygiene.

Operating history / selected roles

Range earned
inside real teams.

Delivery across product companies, venture teams, research, security and multi-brand engineering environments.

  1. 01

    Sep 2026 - present

    Quant Intern, Algorithmic Trading

    Futures First

    Present role at a global derivatives trading firm. Building C#/.NET components for automated trading workflows: order lifecycle handling, rule-based strategy logic and event-driven, latency-sensitive services, plus real-time market-data integrations and alerting tools.

  2. 02

    Nov 2025 - Oct 2026

    Forward Deployment Engineering Intern

    UrsDigitally (A Maxmobility Venture)

    Forward-deployed across client engagements on Shopify, WordPress, October CMS and Laravel: CMS workflows, dashboards, integrations and a role-based NGO ERP for Deep Ranjani.

  3. 03

    Jun 2025 - Oct 2026

    Software & AI Systems Engineering Intern

    Agadhanimus Technologies Pvt. Ltd.

    Technical lead for Opshiva, an agentic voice-AI platform deployed across government and real-estate organisations. Built ShikshaCloud, a school management SaaS now live at multiple schools, from scratch, plus multi-vendor commerce and WebRTC classroom systems.

  4. 04

    Ongoing

    Technical Lead

    Institute of Engineering & Management (IEM-UEM Group)

    Engineering AI, web and application-based solutions for university systems, internal tools and technology aids, including the Office of the Dean (Academics) portal and a RAG assistant on the IEM website.

  5. 05

    Sep 2024 - Nov 2024

    AI Intern

    Wipro

    Designed TensorFlow and scikit-learn ML pipelines with automated preprocessing and integrated predictive outputs into internal dashboards.

  6. 06

    May 2024 - Aug 2024

    Cybersecurity Intern

    IIIT Delhi

    Performed VAPT on 10+ systems, helped close high-risk issues, built SIEM scripts and led OWASP-focused sessions for peers.

Open the complete operating history

Merged upstream / open source

Code running inside
tools millions use.

Small, well-tested fixes reviewed and merged by the maintainers of Python, Node.js, Spring and Ubuntu.

  1. 01

    CPython

    #156474

    Don't specialize LOAD_ATTR_MODULE for module subclasses

  2. 02

    Node.js

    #61951

    esm: avoid a super-linear regex when parsing data: URL MIME types

  3. 03

    Spring Boot

    #51156

    Structured logging: a failed JSON encode no longer corrupts the next log event

  4. 04

    Spring Boot

    #51372

    Support provided-scope libraries when extracting an executable war

  5. 05

    Spring Security

    #19477

    Differentiate Forwarded and X-Forwarded headers in the proxy docs

  6. 06

    Ubuntu App Center

    #2217

    Allow installing updates from local deb files

  7. 07

    Ubuntu Yaru

    #1100

    Accessibility: avoid duplicate tab stops in toggle list tiles

  8. 08

    Beckn ONIX

    #895

    Reject a Data Integrity proof with no verificationMethod

  9. 09

    MONAI

    #8753

    Clearer error messages in the image writers

See everything on GitHub

Design studio / artistic range

Engineering that
also has taste.

Interfaces I designed and built end to end. Each one has its own visual language: type, motion, colour and texture chosen for the brand, not pulled from a template.

Sumit Kumar Das, software engineer, Kolkata

Exposure map / 50+ organisations / 9 domains

Many industries.
Different constraints.
One accountable engineer.

This exposure combines my own clients, such as Health Seva and Patna Medical College, with brands like Sujata Appliances and Prestige that I delivered for through UrsDigitally and partner teams. More public-sector systems are in development.

Enter the work archive
24Rx ExchangeAdani AI LabsAltiedgeBarh Nagar ParishadEaseAddAmaraaBandhan Business SchoolBPR NetworksChhapakhanaDeep Ranjani NGODoon Public SchoolDt. Rupali SinghEasy KiranaFitGreenGoOfficeHealth SevaIndian Institute of GemsIEM LabsIIIT DelhiLiving Healthy 24Maya6419Mind CrestNagar NigamNoble MissionOffice of the Dean (Academics), IEMOpshivaPatna Girls SchoolPatna Medical CollegePaws for GreensPratyashaPrestigePromise EducationRove DashcamsShikshaCloud

Build mode / active

Complex systems deserve clarity, ownership and nerve.

I own systems end to end, from development to deployment and maintenance, for government organisations, international brands and startups across ed-tech, health-tech, B2B, B2C, fashion and retail. Today I build C#/.NET trading-workflow systems as a Quant Intern at Futures First.

Put a system in motion