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TechnologiesShivarva Technologies
services

Our services

Most projects start with one of these and later need another. You talk directly to the people building your project, not to an account manager.

Ecommerce & Checkout Development

We build the parts of an online store that handle money: product catalogues, the cart, checkout, and what happens to an order after it is paid. It is the work we have done the most, on live stores for clients in the USA, the UK and Europe. On these sites a wrong total or a missing order is lost revenue, so we test this part the hardest.

Good for: retailers, product brands and meal-delivery businesses that sell through their own website.

Next.jsReactTypeScriptNode.jsStripe
Ecommerce & Checkout Development in detail →
typical deliverables
Custom storefront
Cart & checkout
Order pipeline
Admin & reporting
Performance tuning
Post-launch support

Payment Gateway Integration

We add Stripe and Authorize.net to React, Next.js and Node.js apps. That covers one-time payments, saved cards, subscriptions and refunds, plus the webhook handling that keeps your orders in step with the payment provider. We have run both gateways together on a live US ordering site.

Good for: stores and apps built with React, Next.js or Node.js that need to take payments.

StripeAuthorize.netNode.jsNext.jsWebhooks
Payment Gateway Integration in detail →
typical deliverables
Stripe integration
Authorize.net integration
Webhook handling
Subscriptions
Refunds & disputes flow
Test-mode handover

Web & Mobile App Development

We design and build web apps and websites with Next.js and React, and mobile apps for iOS and Android with React Native. The same team works on the screens, the back end and the release, so nothing gets lost between handovers.

Good for: businesses whose product or customers are on the web or on a phone.

Next.jsReactReact NativeTypeScriptTailwind
Web & Mobile App Development in detail →
typical deliverables
Design system & UI
Web application
REST / API layer
CMS integration
Mobile app release
Analytics & SEO setup

Custom Software & SaaS

We build business software and SaaS products from the database up: accounts for each customer, billing, logins and an admin panel. After launch we can keep running and improving it. Our own GST billing app was built this way and we use it every day.

Good for: teams that have outgrown spreadsheets, and founders building their first SaaS product.

Node.jsPostgreSQLDrizzleStripeCloudflare Workers
Custom Software & SaaS in detail →
typical deliverables
Product architecture
MVP build
Multi-tenant data model
Billing & auth
Admin dashboards
Documentation

Cloud, DevOps & IT Consulting

We set up and look after hosting on AWS and Cloudflare, including serverless and Docker deployments, automatic deployments from GitHub, monitoring and cost checks. Our own billing app runs on serverless hosting that costs very little each month.

Good for: businesses on old servers, or paying for cloud resources they don't use.

AWSCloudflareDockerGitHub Actions
Cloud, DevOps & IT Consulting in detail →
typical deliverables
Architecture review
Cloud migration
CI/CD pipelines
Monitoring & alerting
Cost optimisation
Security headers & hardening

AI & Automation

We add AI to business software where it saves time: reading invoices and documents (with a person checking the result), assistants that answer questions from your own data, and automations for repetitive admin. Our billing app uses the Claude API to read bills from other systems and turn them into records.

Good for: teams with lots of documents or data, or manual work that takes too much time.

Claude APIOpenAI APIPythonFastAPIPostgreSQL
AI & Automation in detail →
typical deliverables
LLM integration
Document extraction
Retrieval (RAG)
Automation workflows
Evaluation harness
Reporting dashboards

Ways to work with us

fixed scope

Project build

An agreed result, a fixed price and a delivery date. Works best when you already know what you need, such as a store, a first version of an app, an integration or a move to new hosting.

ongoing

Retainer

A set number of hours each month for new features, hosting and support. Works best when your site or app is live and still changing.

set price

Fixed-price packages

Small, clearly defined jobs at a set price. For example, adding Stripe payments to your React, Next.js or Node.js app starts at $250.