Software Engineer

AI &FullStack

Open to new roles
UAE / Remote
Portrait of Roshan SahaniIllustrated portrait of Roshan Sahani
FocusBackend & platform
Hello, I'm Roshan

Software Engineer believes in turning ideas into reality.

I’m a self-taught software engineer with over four years of hands-on experience. I like taking an idea, figuring out what it needs, and building it into something real—whether that means a backend, an app, cloud infrastructure, or an AI-powered feature.
I have a knack for learning new tools and techniques, and I don’t wait until I know every tool perfectly before starting. I research, test, break things, improve them, and keep going until the problem is solved.

Core Stack

MERNNestJsNode.jsPostgreSQLMongoDBGolangAWS
Experience

Experience

NOWJun 2026 - Present

Software Engineer

AMI Industries · Abu Dhabi, UAE

NOW

Owning a real-time LOMAH (Location of Miss and Hit) shooting-range platform end-to-end, from technical design through deployment and production operations.

  • Streaming ballistic sensor data over WebSockets for live shot detection and scoring across 10–20 concurrent lanes, running fully offline
  • Cut live camera feed latency from 410ms to under 150ms, making remote camera aiming responsive enough to track moving targets
  • Built a lightweight face-recognition flow in Rust, shrinking the packaged app from nearly 1 GB to around 100 MB
2026Nov 2025 - Jun 2026

Software Engineer (Contract)

Raveum · XBE · Remote

2026

Consolidated services into a unified monorepo with blue/green delivery, eliminated recurring backend bottlenecks, and built AI-powered alert triage on the Grafana observability stack.

  • Dockerized 4 major services into a unified monorepo with CI/CD and blue/green deployments — 99.9% uptime, CI build times cut from 10 min to under 1 min
  • Diagnosed and resolved DB and backend bottlenecks across 15+ services, tuning indexes and Sidekiq workers to eliminate recurring timeout incidents
  • Built Overseer, an AI alert triage system using the Claude API with Loki/Mimir tooling and a Grafana webhook receiver to automate root-cause analysis
2025Jul 2023 - Sep 2025

Fullstack Engineer (SDE-2)

Neokred Technologies · Bangalore, India

2025

Built core fintech money-movement infrastructure and high-throughput data pipelines while mentoring junior engineers and holding error rates under 0.5% at scale.

  • Designed high-throughput pipelines processing 30M+ records per client, cutting runtime from 8 hours to under 1 hour at 70% lower infra cost
  • Built money-movement infra — chargebacks, FX reconciliation, dispute workflows, and a T+1 settlement engine processing $50M+ monthly across 20+ banking partners
  • Architected pub/sub microservices for 20+ partners supporting 1M+ monthly transactions with 50% lower latency, RBAC, and automated commission tracking
2023Feb 2023 - Jul 2023

Jr. Fullstack Developer

Henosis Tech · Gangtok, India

2023

Implemented secure APIs and reusable full-stack modules for enterprise applications, applying OOP principles to improve maintainability and delivery speed.

  • Implemented secure APIs, authentication flows, and database stored procedures for enterprise apps serving 5,000+ users
  • Built reusable frontend and backend modules using OOP principles, cutting bug resolution time by 30%

SELECTED WORK

Built with purpose.
Made to be used.

Independent projects across developer tools, connected devices, and AI. From first idea to working product.

B2B MarketplaceIn development

Binder

Helping manufacturers and businesses find the right partner with AI-powered matching.

AI · Go · React Native

Behind the build

An AI matchmaking platform for manufacturers and businesses. It chunks and embeds company profiles to score partner fit, then notifies both sides when a strong match surfaces.

  • Profile chunking and embeddings for semantic partner-fit scoring
  • Two-sided notifications when a strong match surfaces
  • Go services backed by PostgreSQL
  • React Native client for manufacturers and buyers
Category
B2B Marketplace
Platform
iOS · Android
Stack
Go · React Native · PostgreSQL
Status
In development
Personal FinancePrototype

Buy or Wait

A clearer answer to your next purchase, built around your real cash flow.

AI · Python · React Native

Behind the build

A spending-decision tool that works out whether to pay in full, split into installments, pay partially, or wait. AI reads the messy inputs — receipts, bills, financial evidence — but the affordability call itself is computed from explicit rules, so the same inputs always produce the same recommendation.

  • Deterministic decision logic: affordability is calculated from explicit rules, never guessed by a model
  • 90-day cash-flow forecast over confirmed income, recurring expenses, and scheduled payments
  • Payment-plan evaluation against minimum-balance preferences and exchange rates
  • OCR for receipts and bills, plus a background CSV analysis pipeline
  • Every output validated before it is returned
Category
Personal Finance
Platform
Mobile
Stack
Python · React Native · OCR
Status
Prototype
Eleven Eleven App interface
LifestyleLive

Eleven Eleven App

Connected lighting, thoughtfully controlled. From secure pairing to the perfect atmosphere.

Flutter · IoT · Supabase

Behind the build

A production-style IoT control app for ESP32-based lamps with a Flutter mobile client and Supabase backend — shipped on both App Store and Play Store.

  • Flutter mobile + ESP32 hardware integration
  • Secure BLE pairing with challenge-response & HMAC
  • Real-time device state sync — tone, intensity, cycles
  • Cloud-backed device & space management
  • Firmware rollout with ack + retry-safe flows
Category
Lifestyle
Platform
iOS · Android
Stack
Flutter
Status
Live
Whatsapp Agent interface
AI AssistantLive

Whatsapp Agent

A conversational assistant that brings answers and everyday tasks into WhatsApp.

AI Agent · WhatsApp

Behind the build

An AI agent that integrates with WhatsApp to provide automated responses, information retrieval, and task execution based on user queries.

  • React + Node.js full-stack delivery
  • Groq vector database for knowledge management
  • Multi-turn conversational flow with context retention
  • Mulitple chats without blockage
Writing_Log · DEV.to

On Dev.to

Posts published on my dev.to profile — engineering notes, lessons from production, and deep dives.

View Profile
About

What I
Work On

Backend and platform work, mostly: real-time services, payment and settlement systems, data pipelines, and the deployment and observability around them.

The stack I reach for most often.

Skills

Technical Skills

Backend

Services & APIs

JavaScriptTypeScriptGoRustNode.jsPythonMicroservices

Architecture

Distributed Systems

Event-DrivenKafkaRedis Pub/SubCQRSSOLIDWebSockets

Frontend

Web & Mobile

ReactNext.jsSvelteFlutterReduxZustandReact Query

Databases

Storage & Tuning

PostgreSQLMongoDBRedisMySQLFirestoreIndex Tuning

Cloud & Observability

Delivery & Operations

AWS (EC2, ECS, ECR, ELB, S3, Lambda)DockerKubernetesCI/CDBlue/GreenGrafana LGTMOpenTelemetry

Fintech & AI

Domain Work

Global PaymentsSettlement EnginesFX ReconciliationStripePlaidAnthropic APILLM Agents
Coding_Proof

GitHub + NeetCode

GitHub

Profile
Repos

Followers

Stars

Last 365 days

LessMore
Services

Build it with me

Fixed, honest pricing for freelance work — shipped by the same engineer who built everything else on this page. Not sure which fits? Ask my agent or have it call you.

Landing Page

$100flat
3–5 days

A fast, responsive marketing site that converts.

  • Single-page site, custom design
  • Mobile-first + dark mode
  • SEO, meta tags, analytics
  • Contact form wired to your inbox
  • Deployed on Vercel with your domain
Most asked for

Full-Stack Web App

$1,000starting at
3–5 weeks

Auth, database, dashboard, payments — the whole product.

  • Next.js + TypeScript frontend
  • Node/NestJS or FastAPI backend
  • PostgreSQL or MongoDB, auth, roles
  • Stripe or payment-gateway integration
  • Admin dashboard + REST/GraphQL API
  • CI/CD, Docker, cloud deploy

Mobile App

$1,600starting at
5–8 weeks

Cross-platform iOS + Android, backed by a real API.

  • React Native app, iOS + Android
  • Backend API + database
  • Push notifications, offline state
  • Auth, profiles, in-app payments
  • App Store + Play Store submission

Got a Startup Idea?

let's talk
ongoing

Bring the idea — I'll help scope, architect, and build it.

  • Idea → scope → architecture review
  • MVP roadmap with real timelines
  • Technical co-founder / CTO-style support
  • Equity, retainer, or milestone-based

Rather just talk it through?

Drop your number and my AI assistant calls you — in English or Arabic — to scope what you need and quote it on the spot.

Contact

Let's
Connect

Open to backend and platform roles, and to freelance work. Abu Dhabi or remote.

Send a Message