Shreyansh Kumar Singh

AI & Full-Stack Engineer · ASP.NET Core · Angular · Flutter · SQL Server · LLM / RAG

Pune, Maharashtra, India · shreyanshkumarsingh208@gmail.com · LinkedIn · GitHub (Shreyanskumarsingh20) · shreyanshkumarsingh.com

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Summary

Full-stack and AI engineer with nearly four years of production experience at RamanByte, building ed-tech and marketplace software used by real institutions across India. Owns the full vertical slice: ASP.NET Web API / ASP.NET Core with SQL Server or PostgreSQL, Angular 16–18 and Flutter front ends, and cloud delivery on Azure, AWS S3 and Firebase. Independently builds AI-native systems — RAG pipelines, LLM agent loops, and autonomous security and QA agents — with a spec-first, audit-after discipline. Open to full-time or hybrid roles.

Experience

Full-Stack Developer · RamanByte Pvt. Ltd., Pune January 2023 – Present

Ed-tech company building Classroom+, a cloud LMS used by schools and institutes across India.

Vidur Industry Connect — multi-tenant engagement platform (Flutter, ASP.NET Core, SQL Server, Redis, Azure)

Built the tenant admin dashboard from scratch with status and type analytics and custom date-range filters; 38 commits across 9 merged PRs in 3-week sprints.
Delivered the citizen engagement lifecycle — search, filter, rating, cancel/reopen with reason — and a near-duplicate guard flagging requests ~85% similar to one raised in the past week.
Built the citizen profile suite; fixed analyzer errors that were blocking the GitHub Actions staging deploy gate.

Dada Udyogini — seller & buyer marketplace apps (Flutter, ASP.NET Core, PostgreSQL, Azure, Firebase)

Integrated SMS/OTP messaging and logistics vendors into signup, order and fulfilment flows, including rate calculation, shipment creation and live tracking.
Designed DadaLoad, a distributed load-testing platform: a .NET Worker Service running k6 across 10 Windows machines, orchestrated via ASP.NET Core and SignalR, with PDF/XLSX/JSON reports.
Right-sized Azure resources against real traffic; both apps launched together on a fixed public date.

Classroom+ LMS — admin, faculty & student portals (Angular, ASP.NET Web API, SQL Server)

Admin console: timetable planning with copy mode and Excel export, faculty availability, program/batch/subject masters with bulk import, 6-language i18n.
Student app (student.classroomplus.in): attendance and assessment dashboards, a 7-step placement-profile wizard, a job board and a 9-stage recruitment pipeline.
Faculty app (faculty.classroomplus.in): workload calendar, assessment authoring and grading, late-submission approvals, attendance and mentorship.

A Journal of Management — PIBM journal portal (Angular 16, ASP.NET Web API, SQL Server, AWS S3)

Converted a static template into a live, API-driven portal for a double-blind peer-reviewed journal (ISSN 2455-8796): 11 public routes, 3 roles (author, reviewer, editor), 93 commits.
Built email-verified author onboarding, manuscript submission and revision flows, the reviewer workflow, and AWS S3 document uploads.

Projects

THE COLLECTOR'S PULSE — An AI-curated daily newsroom for trading cards, figures and luxury watches — with its own written design system. Next.js 16 · React 19 · TypeScript · Tailwind v4 · Gemini
NYTHERA — An autonomous penetration-testing platform that validates every finding before it reports it. Python · Async HTTP · LLM agent loop · Docker
SARTHI — An AI relationship-manager copilot for banking — RAG and document intelligence, then a written audit of its own P0 holes. Next.js · TypeScript · Prisma · Supabase · Groq · Gemini
ANTARANG — A walkable 3D museum where Indian art history sits as a first-class citizen on the world timeline. Next.js · React Three Fiber · Three.js · Drizzle · Neon
BOOKVERSE AI — Step inside any book — summaries, timelines, mind maps, character graphs and a grounded AI tutor. Next.js 16 · React · TypeScript · Tailwind · Groq · Ollama
THE EVOLUTION — Four physics simulators. One HTML file each. No build step, no dependencies, no network. Vanilla JS · Canvas 2D · Zero deps
VAULTIQ — Angular 18 and ASP.NET Core 8 in Clean Architecture — the enterprise half of the range. C# · .NET 8 · Angular 18 · Signals · EF Core · SQL Server
HALLOGENAI — An autonomous QA agent that re-verifies reported bugs against live application behavior — never against a commit message. Python · FastAPI · Playwright · Pydantic v2 · SQLAlchemy · Groq
REVUELTO: ASSEMBLED — A locked-off clip of a Lamborghini Revuelto, scrubbed frame-by-frame to scroll — scroll down and it assembles itself; scroll up and it comes apart again. Next.js 16 · React 19 · Canvas 2D · Lenis · GSAP · Tailwind v4

Technical skills

Languages: C#, TypeScript, JavaScript, Python, Dart, SQL, HTML, CSS/SCSS
Back end: ASP.NET Core 8, ASP.NET Web API, REST APIs, Entity Framework Core, Clean Architecture, SignalR, FastAPI, Pydantic, SQLAlchemy
Front end: Angular 16–18 (RxJS, Signals, Reactive Forms, Angular Material), React 19, Next.js, Tailwind CSS, Bootstrap 5
Mobile: Flutter, Dart, flutter_bloc, go_router, Firebase SDK, Google Maps SDK
Databases: SQL Server, PostgreSQL, Redis, Supabase, Neon, Prisma, Drizzle
AI / ML: RAG pipelines, embeddings and vector retrieval, LLM agent loops, Groq, Gemini, Ollama, OCR (Tesseract)
Cloud & DevOps: Microsoft Azure (App Service, Static Web Apps), AWS S3, Firebase / Google Cloud, GitHub Actions, Docker, Git, k6
Security & QA: OWASP Top 10, CWE mapping, PTES workflow, auth hardening, rate limiting, Playwright
Other: Three.js, React Three Fiber, GSAP, Canvas 2D, Excel / PDF export, i18n