Fintech Platforms
Full-stack product development for investment platforms, portfolio management, and financial advisory tools - built for real-time data, strict access control, and high transaction reliability.
Full Stack Engineer
Full-stack products across fintech, GenAI, telecom, SaaS, and CMS — 6+ years, every time starting from an empty repo.
Building full-stack products from scratch across fintech, GenAI, SaaS, telecom, and more.
What They Say
What colleagues and clients have said about working with me.
Debjyoti created our transaction website for investment robot-advisory. He comes with a strong technical expertise in web development with an ever growing interest to learn new technologies. He is very committed professional putting in dedicated efforts to make the system go-live. He being in the team makes a huge difference and I am sure he will continue to build beautiful software systems in the future as well. All the very best to Debjyoti !!
Debjyoti Mohapatara was a fantastic person to work with, and is not only a multi-skilled and insightful colleague, but also an inspiring strategist. Very good person. Great employee with a very strong problem solving skills. It was an great experience to working with him.
Where I Deliver
Product domains where I have delivered scalable solutions from architecture to release.
Full-stack product development for investment platforms, portfolio management, and financial advisory tools - built for real-time data, strict access control, and high transaction reliability.
Multi-tenant AI platforms with provider-agnostic LLM orchestration, agentic workflows, and production-grade safety controls including DLP and PII guards.
Bespoke and white-label storefront platforms for MVNO clients - from fully custom carrier-specific builds to self-serve multi-tenant systems with runtime configuration.
Multi-tenant SaaS products with centralised auth, per-tenant isolation, and platform-wide feature governance - covering both customer-facing and internal tooling.
Schema-driven builder platforms where application structure, state, and layout are defined through configuration - backed by a headless atomic component system.
Enterprise CRM products for global industrial clients - built from scratch with GraphQL data layers, bulk data processing, and real-time analytics for complex sales operations.
Content management platforms with structured authoring, role-based approval workflows, and live preview - built to support editorial teams across multiple content types.
A domain I am actively building in out of personal interest - focused on making care coordination, patient data, and clinical workflows more accessible through thoughtful software.
A showcase of professional work and personal projects.
Built the core platform for a multi-tenant B2B GenAI SaaS from scratch. Designed the JWT authorizer middleware and RBAC layer that controls per-tenant access across all API routes. Built a dynamic component library and layout builder in Vue 3 that cut feature delivery time by 30%. Led Vue 2 to Vue 3 and Nuxt 2 to Nuxt 3 migrations across the product.
Senior Software Engineer • Gate AI Pvt Ltd
Impact:
Accelerated product delivery by 30% while providing highly secure, custom AI chat environments for diverse enterprise clients.
Built an investment tracking platform with real-time portfolio valuation, analytics dashboards, and notifications for upcoming payments and portfolio rebalancing. SSR for performance, role-based workflows, and direct finance API integration.
Senior Software Engineer • Geekyants
Impact:
Owned the web implementation end-to-end - SSR Nuxt frontend, GCP Pub/Sub integration for real-time portfolio valuations, and RBAC-based advisory console for 10,000+ investors. Recognised by Ametra's Co-Founder/CTO for commitment to shipping.
Built a no-code platform letting business users design and launch web and mobile apps with drag-and-drop. Includes a schema builder, layout builder, and component library - cutting go-to-market time and reducing dependency on dev teams.
Frontend Developer • KISAI (Ideanz IT Solutions)
Impact:
Reduced app delivery time by 50% - non-technical teams could launch complex apps without writing code.
Accessible component library with packages for Vue 3, React, and Svelte - all published on npm. Built incrementally with TypeScript support and a shared design system across frameworks. Active development with continuous feature additions.
Authentication-as-a-Service gateway built with Node.js and TypeScript. Supports multiple identity providers, SSO, JWT issuance, and role-based access control. Frontends in both React and Vue talk to the same auth layer. Designed to be dropped into any multi-tenant SaaS without rewriting auth from scratch.
An AI-powered healthcare companion that helps users take control of their medical life. Upload a prescription and it reads it — extracting every medication, dosage, and instruction using OCR and LLM processing. Log symptoms and get an AI risk assessment. Track medications, set reminders, and monitor vitals over time. Find doctors by specialty and availability and book appointments directly. Built as a full-stack product with a NestJS microservice handling all AI processing separately from the main API, keeping response times fast and the architecture clean.
Check out my latest open-source work, updated automatically from GitHub.
What I Know
My toolkit for building scalable products, robust systems, and high-quality user experiences.
UI engineering, state management, accessibility, and polished user experiences.
Production APIs, secure services, and architectural design for scalable systems.
Runtime & APIs
Architecture Patterns
Data modeling, persistence, cloud platforms, and deployment infrastructure.
Databases
Cloud & Infrastructure
Quality assurance practices, test automation, and modern engineering workflow tools.
Testing
Tooling & Process
LLM-powered capabilities, API integrations, and practical generative AI features.
I'm always interested in new opportunities. Let's work together.