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Case StudiesReal projects, real results

A look at software we've actually shipped — the problem, the build, the stack, and the outcome.

ThinClient OS + Fleet Manager — DevOps & Infrastructure

DevOps & Infrastructure

ThinClient OS + Fleet Manager

Locked-down Debian RDP appliance with a cloud fleet manager

A production-grade Linux appliance that boots straight into a full-screen Windows RDP session — no desktop, no shell, no login prompt — backed by a self-healing watchdog and an infinite reconnect loop. It ships as a reproducible BIOS+UEFI ISO and pairs with a Next.js cloud manager to provision, monitor and remotely control the device fleet.

Zero-desktop hardened OS
Reproducible BIOS+UEFI ISO
Self-healing auto-reconnect

Debian 13FreeRDP 3systemdOpenboxBash

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Sparks Business — Inventory, Sales & GST Invoicing Platform — SaaS

SaaS

Sparks Business — Inventory, Sales & GST Invoicing Platform

Multi-tenant inventory, sales and GST-invoicing SaaS for Indian trading businesses

Sparks Business is a multi-tenant platform built by eSparks IT Solutions to run inventory, purchases, sales and GST invoicing from one system. It pairs a NestJS 11 API with an installable Next.js 15 PWA, backed by PostgreSQL 17 through Prisma 6 across 49 data models. Every query is scoped to its tenant through an AsyncLocalStorage-driven Prisma client extension, and an append-only audit table is enforced at the database level — even a direct update or delete against it is rejected by a trigger. GST math (CGST/SGST/IGST splitting, GSTIN validation) runs on decimal.js for exact, rounding-free results, and a real Tally XML importer lets a business bring in existing ledgers, vouchers and stock items instead of starting over. Redis and BullMQ handle background email and document generation, S3-compatible object storage holds product images, invoice PDFs and backups, and Microsoft Graph sends transactional email. Deploys are health-gated, so a broken build never reaches production.

49 data models
Installable PWA
Health-gated CI/CD

NestJS 11Next.js 15React 19Prisma 6PostgreSQL 17

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Esparks Edu — School Management ERP — SaaS

SaaS

Esparks Edu — School Management ERP

Multi-tenant school management, from admissions to payroll

Esparks Edu is a SaaS school management ERP built to unify academics, finance, HR, and daily operations in one platform. eSparks IT Solutions developed it with Next.js 16, React 19, PostgreSQL, Prisma, NextAuth.js v5, Redis, and a companion React Native app. The system supports subdomain-based multi-tenancy with row-level tenant isolation, along with RBAC across 9 roles and 4 subscription tiers (Free, Starter, Professional, Enterprise) billed through Razorpay. Its scope covers admissions, attendance, fees, exams, payroll, timetable, transport, library and report cards, helping schools manage core processes in a single system. The platform spans 60 data models across 6 logical database schemas, around 27 web modules, and 21+ mobile screens, with Firebase push notifications extending the experience to parents and students.

60 data models
6 DB schemas
~27 web modules

Next.js 16React 19PostgreSQLPrismaNextAuth.js v5

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Phone Vault — Data Platform

Data Platform

Phone Vault

Bulk phone-number dedup & vendor-delivery tracking

Phone Vault is a data-operations platform built by eSparks IT Solutions to turn bulk vendor CSV and Excel uploads into one clean, deduplicated phone-number master list. A Go/Gin API normalizes every number to real E.164 format with a genuine phone-number parsing library, then runs a three-tier deduplication check — within the uploaded file, against the master dataset, and against what that vendor has delivered before — before anything is migrated out of staging. The Next.js dashboard covers upload, staged review, vendor management, and date-ranged per-vendor reporting with CSV export. The stack is intentionally simple: a single Go API, a single Next.js frontend, and PostgreSQL as the only datastore, run via Docker Compose behind Nginx.

~1M-row uploads
Layered Go architecture
Three-tier dedup pipeline

GoGinNext.jsPostgreSQLDocker

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Retro — Sprint Retrospectives — SaaS

SaaS

Retro — Sprint Retrospectives

Real-time sprint retrospectives for every team

Retro — Sprint Retrospectives is a SaaS platform for running real-time sprint retrospectives for every team. Built with Next.js 15, React 19, PostgreSQL, Drizzle, Redis, Docker, and Socket.IO, it supports live cards, votes, presence, and a timer through Socket.IO with a Redis adapter. The product includes no-signup anonymous join with server-side device tokens, along with drag-and-drop columns, voting, board lock, and CSV/PDF export. It also features a 15-language localized UI, dark mode, and a pnpm monorepo structure. Architected as 2 apps plus 2 shared packages, the solution is designed for multi-instance realtime usage and includes Caddy auto-HTTPS for deployment-ready operation.

2 apps + 2 shared packages
Multi-instance realtime
Caddy auto-HTTPS

Next.js 15React 19Socket.IOPostgreSQLDrizzle

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BCW Technology Solutions — Corporate & CMS

Corporate & CMS

BCW Technology Solutions

Corporate site with a full content-approval CMS

BCW Technology Solutions is a corporate website and content-management platform built with Next.js 16, React 19, PostgreSQL, Prisma, NextAuth v5, Tailwind 4, and TipTap. The platform presents services, portfolio case studies, blogs, and lead-capture forms, while its admin back office supports role-based management of users and submissions. Staff can author blogs and portfolios with TipTap rich-text editing and move content through a draft → submit → approve/reject workflow with versioning, aligned with the role-based draft → approval → publish process. The implementation also includes Cloudflare Turnstile, rate limiting, and Cloudinary media, backed by 207 tests at ~96% coverage, 4 deploy environments, and CI/CD via GitHub Actions.

207 tests · ~96% coverage
4 deploy environments
CI/CD via GitHub Actions

Next.js 16React 19PostgreSQLPrismaNextAuth v5

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Database Migration Platform — Data Platform

Data Platform

Database Migration Platform

Browser-operated any-to-any database migration on CDC

eSparks IT Solutions built a browser-operated data platform for planning, running, monitoring, and validating real-time migrations between heterogeneous databases. Five relational engines (SQL Server, PostgreSQL, MySQL, Oracle, Db2) migrate in either direction; MongoDB is supported as a CDC source. Its Java 21 and Spring Boot 3 control plane orchestrates jobs, while a React interface supports operation through the browser. For real-time CDC, the data plane uses Debezium, Kafka, and a JDBC sink, with PostgreSQL in the stack and deployment via Docker Compose or Kubernetes (Strimzi). The platform includes end-to-end integrity validation with drift detection, custom Java SMTs, AES-GCM secret encryption, Prometheus/Grafana, and JWT/RBAC security. SQL Server, PostgreSQL, MySQL and MongoDB migrations are live-verified end-to-end — including a production programme that moved roughly 960 million rows across 405 tables from SQL Server to PostgreSQL with zero rows missing at validation; Oracle and Db2 connectors are implemented and tested at the unit/config level, pending live verification.

~960M rows migrated across 405 tables
0 rows missing at validation
SQL Server → PostgreSQL, source stayed live

Java 21Spring Boot 3ReactDebeziumKafka

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CallIntell — AI Call Synopsis & Quality — AI Platform

AI Platform

CallIntell — AI Call Synopsis & Quality

Every call summarised into the CRM, without anyone listening

CallIntell turns recorded phone calls into reviewed, structured CRM records without anyone listening to the call. A six-stage queue-backed pipeline fetches the recording, transcribes it with speaker labels and word-level timestamps on serverless GPU, strips personal identifiers before any text reaches a language model, matches the call to its CRM record, and generates a schema-validated synopsis — outcome, commitments, objections, price discussed — with every point linked to the second of audio it came from. Spoken follow-up phrases such as “call me in ten days” are resolved into dated CRM tasks in the customer's own time zone, with the verbatim wording kept alongside. Anything the system is not confident about routes to a human review queue rather than being guessed, and CRM writes are idempotent so a retry cannot duplicate a note or a task. Built on Next.js, BullMQ on Redis, PostgreSQL with Drizzle, WhisperX with diarization, Microsoft Presidio redaction and Claude, with passkey and TOTP sign-in, an append-only audit log, per-company isolation and usage metering. Deployed and running the first customer workflow; not yet opened as a public product.

Speaker-labelled transcripts with word-level timestamps
Every synopsis point links to its moment in the audio
Idempotent CRM writes — retries cannot duplicate

Next.jsTypeScriptBullMQPostgreSQLWhisperX

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Cybotech Campus — EdTech

EdTech

Cybotech Campus

Learning management & coaching platform

Cybotech Campus is an EdTech learning management and coaching platform built with Angular 17 and Ionic on the front end, and Spring Boot 3, Java 17, MySQL, JPA/Hibernate, and JWT on the back end. eSparks IT Solutions developed a public course-marketing site alongside a JWT-secured admin dashboard to manage students, courses, enrollments, fees, invoices, results, blogs, and YouTube-based lessons. The platform also includes an online MCQ quiz and exam engine with scoring, plus QR-based certificate generation and verification. Its architecture is supported by a layered REST API with Swagger/OpenAPI documentation, spanning 15 REST controller groups, around 23 JPA entities, and about 30 UI modules.

15 REST controller groups
~23 JPA entities
~30 UI modules

Angular 17IonicSpring Boot 3Java 17MySQL

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GitHub Timesheet — Developer Tools

Developer Tools

GitHub Timesheet

Team time tracking that lives in GitHub issues

GitHub Timesheet is a developer tool that brings team time tracking directly into GitHub issues. Built with Next.js 15, React 18, TypeScript, the GitHub GraphQL API, Radix UI, Tailwind, and as an installable PWA, it is designed as a zero-database solution where GitHub issues serve as the source of truth. The product supports a monthly calendar, Jira-style durations, multi-user views, and a team dashboard for utilization, capacity, forecast, and date ranges. It also suggests time entries from GitHub commits and PRs, includes approval and reopen-request workflow support, tracks holidays and leave/PTO, and provides styled Excel export. The result is a fast, no-database, no-login workflow for teams already living in GitHub.

No database · no login
Styled Excel export
Installable PWA

Next.js 15React 18TypeScriptGitHub GraphQL APIRadix UI

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The Becoming Institute — Marketing Sites

Marketing Sites

The Becoming Institute

Guided identity development beyond survival into purpose

For The Becoming Institute, eSparks IT Solutions delivered a marketing and lead-generation website focused on presenting structured programs and capturing prospect inquiries. Built with Next.js 16 and React 19 on the Next.js App Router, the site uses Tailwind for styling and Framer Motion for scroll-triggered program showcase animations. A lead-capture form includes validation, Turnstile bot protection, and server-side email delivery through Nodemailer via Brevo SMTP, supported by rate limiting. The implementation also includes security headers and multi-environment CI/CD, with a self-hosted deploy. Quality was reinforced through Jest + Testing Library and approximately 95% test coverage, supporting a reliable contact flow and polished program presentation.

~95% test coverage
Jest + Testing Library
Self-hosted deploy

Next.js 16React 19TailwindFramer MotionNodemailer

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Hope & Healing Network — Nonprofit

Nonprofit

Hope & Healing Network

Connecting communities through hope, healing & support

Hope & Healing Network is a lightweight, static-first nonprofit website built with Next.js 16, React 19, Tailwind, Static Export, and Turnstile. It was created to connect communities to partner organizations offering mental-health, wellness, and community-support services. The build emphasizes accessibility-first implementation through skip links, semantic HTML, and a dedicated a11y page. It also includes a partner-network grid and a spam-protected contact form backed by Google Apps Script, with Turnstile supporting spam protection. Built-in SEO features include a sitemap, robots, and OG/Twitter cards. With static export for speed and cheap hosting, the project delivers 10 static pages, supported by 199 tests and approximately 93% test coverage.

~93% test coverage
199 tests
10 static pages

Next.js 16React 19TailwindStatic ExportTurnstile

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Élégance Event Venue — Marketing Sites

Marketing Sites

Élégance Event Venue

Where luxury meets celebration

Élégance Event Venue is a luxury event-venue marketing and booking-inquiry website built for a New York venue hosting weddings, galas, and private celebrations. Developed with Next.js 16, React 19, Tailwind 4, PostgreSQL, node-postgres, and Zod, the site lets visitors browse spaces and packages with capacity, pricing, and gallery details, then submit booking and contact inquiries validated with Zod and persisted to PostgreSQL. The platform includes a tier-gated availability calendar and analytics roadmap aligned to its 3 feature tiers, along with rich SEO through EventVenue, FAQ, and Breadcrumb JSON-LD. Across ~12 pages and 8 data tables, the build organizes venue discovery and inquiry handling into a polished, structured experience.

8 data tables
~12 pages
3 feature tiers

Next.js 16React 19PostgreSQLnode-postgresZod

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Veteran Opportunities Unlimited — Nonprofit

Nonprofit

Veteran Opportunities Unlimited

Their way out is our way in

Veteran Opportunities Unlimited’s website was built as an awareness and donation experience for a nonprofit focused on ending chronic veteran homelessness, starting with homeless female veterans and their families. Using Next.js 16, React 19, Tailwind 4, and TypeScript, the project presents 3 core programs through dedicated pages covering transitional housing, DV refuge, and dependents support, alongside the organization’s recovery model. The build includes a donation CTA integrated with GivingFuel, with volunteer and contact flows planned through Google Sheets and email. Metadata-driven SEO and a distinct Navy/Gold/Crimson brand palette help shape a clear, mission-led presence, with VPS deployment planned.

3 core programs
Navy/Gold/Crimson brand
VPS deploy planned

Next.js 16React 19Tailwind 4TypeScript

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Overall impact

Across our projects and clients

13+

Projects Delivered

98%

Client Satisfaction

10+

Team

24/7

Support Available

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