Senior AI/Software Engineer · Production Systems

We build production ready AI applications with
LLMs, agents, and serverless infrastructure
— from first commit to scale.

From LLM-powered products to enterprise-scale systems, Xnuvio partners with ambitious teams to design, build, and ship AI applications and software that hold up in production.

7+
Years Experience
4
Global Brands — via RBI Eng. Team
50M+
Records Migrated
4
Continents Deployed
Global Product Launch Experience
Multi-Region Deployments
Enterprise Migration Expertise
Cloud-Native Architecture Experience

Built for teams at
every stage of scale.

Whatever stage you're at, the goal is the same — ship software that holds up as you grow.

Startups

Validate fast, launch with confidence, and build on a foundation that scales.

MVPsSaaSProduct development

Growing Businesses

Replace manual work with systems that free your team to focus on growth.

AutomationInternal toolsCustom software

Enterprise Teams

Modernize legacy systems and infrastructure without disrupting the business.

MigrationCloud modernizationInfrastructure consulting

Services built for scale,
delivered with precision.

All services

AI Application Development

Production LLM systems — not a ChatGPT wrapper.

Production LLM applications with LangChain, LangGraph, and LangSmith. RAG systems with vector search, multi-step agents, evals, guardrails, and observability baked in from day one. From PoC to real users without a rewrite.

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SaaS Application Development

From idea to a live, paying product.

Ship a multi-tenant SaaS in 6-10 weeks. Auth, billing (Stripe), multi-region AWS, and the observability to know when something breaks at 3am. Built for founders who need to launch and learn fast.

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Microservices & API Development

Systems that scale to millions of users.

Distributed microservice systems handling millions of users in production. REST, GraphQL, and event-driven APIs — designed for reliability and scale from day one, not bolted on after an outage.

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From first call to
production launch.

No black box. Here's exactly what working together looks like.

01

Discovery Call

30 minutes, async-friendly. We talk through the problem, not a sales pitch.

02

Architecture Proposal

1-2 days later: a fixed-scope document with architecture, timeline, and price.

03

Build Phase

Weekly demos, async updates, and your code lives in your own repo from day one.

04

Launch & Handoff

Production deploy, documentation, and an optional retainer for ongoing support.

Typical Engagements

$5K – $15K
MVP
$15K – $50K
Production Build
$5K – $10K / mo
Ongoing Retainer

Rough ranges to help you self-qualify — every engagement gets a fixed-scope quote after the discovery call.

The technologies behind
every system we ship.

From LLM applications to cloud infrastructure — a stack proven in production, not just on a resume.

LangChainLangChain
PythonPython
AWSAWS
Next.jsNext.js
ReactReact
Node.jsNode.js
TypeScriptTypeScript
PostgreSQLPostgreSQL
DynamoDBDynamoDB
MongoDBMongoDB
DockerDocker
DatadogDatadog

Built on the world's
most trusted platforms.

We partner with leading cloud providers, databases, and platforms — so your infrastructure is always in safe, scalable hands.

Amazon Web Services
Amazon Web Services

Primary cloud platform — Lambda, EC2, S3, DynamoDB, Step Functions & more.

Google Cloud
Google Cloud

GCP services for compute, storage, and analytics workloads.

MongoDB Atlas
MongoDB Atlas

Managed NoSQL cloud database for scalable document storage.

PostgreSQL
PostgreSQL

Enterprise-grade relational database powering production systems.

Snowflake
Snowflake

Cloud data warehouse for analytics, ETL pipelines, and large-scale migrations.

Vercel
Vercel

Edge-optimized deployment for Next.js applications.

Docker
Docker

Containerization for consistent, portable development and deployment.

DataDog
DataDog

Observability, APM, logs, metrics and distributed tracing.

cloud
database
platform
monitoring

Trusted by teams
who shipped with us.

A few of the businesses we've partnered with to launch, scale, and modernize their products.

The website xNuvio built finally shows our craftsmanship the way it deserves — customers browse our past work and reach us on WhatsApp before they even call. Enquiries have been far more consistent.

Golam Rosul · Brothers Sofa Works
Bengaluru

They gave us a site that looks as premium as the pools we build. The team understood our brand fast, and the booking flow has made following up with new clients much easier.

Sahanawaz Mallick · Bright Pool
Kolkata

Fast, polished, and exactly the premium feel we wanted for the studio. xNuvio handled everything end to end, and the new site has noticeably lifted enquiries from higher-quality clients.

Rofik Mallick · Mallick Interior
Kolkata

Meet the Founder

You're not hiring a faceless agency — you work directly with the engineer who designs, builds, and ships your product.

SK MD Nurujjaman
SK MD Nurujjaman
Founder & Senior Software Engineer
Bengaluru, India

I've spent 7+ years engineering production systems for some of the world's most recognised brands — from serverless pipelines handling millions of records to digital platform launches across 4 continents. xNuvio is how I bring that same level of craft and rigour to ambitious startups and businesses of every size.

Free 30-Minute Architecture Review

Building a SaaS? Planning a migration? Scaling your infrastructure? Get expert feedback before expensive mistakes happen.

Available for new projects

Ready to scale something remarkable?

From first MVP to enterprise scale, we help ambitious teams launch, scale, and modernize the software that grows their business. Let's talk.