Shopify App Engineering

Shopify App Development

Build custom Shopify apps that add powerful functionality to your store. From private apps to public marketplace apps.

Shopify Partner 9+ years 150+ stores live
Trusted by ambitious DTC brands —
Maison Verde Northwind Aurora & Co Bramble Sage Atelier Helio
— What makes this service different

Public, private and custom Shopify apps that pass App Store review.

Shopify App Development at Raulji means production-grade Node/TypeScript apps using GraphQL Admin, Functions and theme app extensions. We’ve shipped apps approved on first submission and apps powering tens of millions of webhooks per day.

Built for the App Store

Compliant onboarding, GDPR webhooks, billing API and accessibility — first-time approval.

Webhook-first architecture

Idempotent handlers, dead-letter queues and exactly-once semantics.

Theme app extensions

App blocks merchants drop into themes — no code edits, no upgrade risk.

Shopify App Development — Raulji Shopify practice
Inside the engagement
Raulji Technologies
Shopify App Development

Public, private and custom Shopify apps that pass App Store review.

What we deliver in a Shopify App Development engagement
  • App scaffolded with Shopify CLI + Remix
  • GraphQL Admin queries, Functions and webhooks
  • Billing, GDPR and onboarding flows
  • App Store listing assets + submission walkthrough
40+
Custom Shopify apps
4.6M
Webhooks/day handled
100%
GDPR webhooks shipped
82ms
Avg p95 latency
— App Engineering

Custom Shopify apps — built to last, ready to scale.

GraphQL Admin, Functions, webhooks and OAuth — wired together with idempotency, contract tests and observability from day one.

Custom Shopify apps — built to last, ready to scale.
Our practice
App Engineering

Public & custom apps

Marketplace-ready public apps or merchant-specific custom apps — both engineered with the same rigour.

  • App Store ready
  • OAuth + sessions
  • Subscription billing

Theme app extensions

Inject blocks and sections into any theme — no liquid edits, no merchant friction.

  • Editor-native blocks
  • Sandboxed runtime
  • Versionable & rollback-safe

Functions & GraphQL

Edge-fast Functions for checkout logic, GraphQL for bulk operations and live data.

  • Functions in TypeScript
  • Bulk mutations
  • Subscription deliveries

Privacy & compliance

GDPR webhooks (customer redact, shop redact), PII redaction at the edge, SOC2-aware logging.

  • GDPR webhooks
  • Edge PII redaction
  • SOC2-aware logging
— App Build Timeline

A 12-week path from idea to App Store.

Week 1–2

Discovery + spec

Use cases, scope, OAuth scopes, billing model.

Week 3–6

MVP build

Core endpoints, webhooks, Admin UI extension.

Week 7–9

Theme + Functions

Theme app extensions, Functions, GraphQL.

Week 10

QA + perf

Load tests, contract tests, GDPR coverage.

Week 11–12

App Store submission

Listing assets, demo store, approval support.

— Stack of Choice

The Shopify tools we ship with — every single sprint.

A senior, opinionated stack — chosen for raw performance, observability and long-term maintainability.

Shopify Plus Liquid Hydrogen Oxygen Remix Storefront API Admin GraphQL Functions Polaris Theme Kit Shopify CLI TypeScript React Tailwind Vite Node 20 Cloudflare Vercel Klaviyo Algolia Yotpo ReCharge Gorgias Datadog Shopify Plus Liquid Hydrogen Oxygen Remix Storefront API Admin GraphQL Functions Polaris Theme Kit Shopify CLI TypeScript React Tailwind Vite Node 20 Cloudflare Vercel Klaviyo Algolia Yotpo ReCharge Gorgias Datadog
— Engineering Principles

Six principles we don’t negotiate on.

01
Performance is a feature

We ship with measurable budgets — TTFB, LCP, INP — enforced in CI. Storefront regressions don’t merge.

02
Theme apps over forks

We use Theme app extensions, sections, and metaobjects so your store stays upgrade-safe across every Shopify edition.

03
Observability before launch

Web Vitals, RUM, Shopify Functions logs and synthetic checks are configured before the first real customer.

04
Privacy as a baseline

GDPR/CCPA-aware data flows, consent-mode tagging and PII redaction at the edge — by default, not by retrofit.

05
Documentation is delivery

Theme docs, component library, runbooks and onboarding ship with the code — your team owns it from day one.

06
Senior, end-to-end

No first-line agents, no junior hand-offs. The architect who scopes your work is the one accountable for shipping it.

— Engagement Models

Three ways to work with us.

Fixed scope
Project

End-to-end build against a clear scope, milestones, demos and a launch plan.

  • Discovery + estimate
  • 2-week sprints
  • QA & launch support
Discuss this model
Senior squad
Dedicated Squad

A senior pod of Shopify architects and developers integrated with your team — flexible roadmap, weekly demos.

  • 3–6 person Shopify pod
  • Weekly cadence
  • Dedicated tech lead
Discuss this model
24×7
Managed Ops

Run, monitor, patch and optimise your store with SLAs measured in minutes — not days.

  • Theme + app patching
  • 1-hour critical SLA
  • Performance reviews
Discuss this model
— Apps in 3D

Custom Shopify apps, engineered to last.

Each orbiting node is a permission, webhook or endpoint your app touches. Mouse-driven parallax shows the data flow.

  • Theme app extensions
  • GraphQL Admin + Functions
  • Webhook-driven sync
  • App Store ready
Move your cursor — the scene reacts
AI Telemetry · Live

Shopify App Development, instrumented end to end.

Build custom Shopify apps that add powerful functionality to your store. From private apps to public marketplace apps.

  • Real-time anomaly detection on cart, checkout & app events
  • Predictive load scoring before campaigns and peak windows
  • Auto-classified incidents with suggested fixes from a 9-yr corpus
  • PII-aware logs — redacted at the edge, never leave your VPC
raulji.ops/shopify
Avg latency
82ms p95
Webhooks/day
4.6M stable
Test coverage
92% avg
App Store
Approved 1st try
$ raulji watch –service shopify –window 5m
p95 storefront 184ms · checkout 1.2s · 0 incidents
— Why Raulji

Built by Shopify engineers who treat your store like their own.

Not a body-shop. Every engagement is led by a senior architect with skin in the game — measured against revenue, not hours.

Idempotent handlers

Replay-safe webhooks with retry + DLQ.

GraphQL Admin

Bulk operations, no REST fallbacks.

Distributed tracing

OpenTelemetry across every hop.

GDPR webhooks

Customer redact + shop redact handled by default.

— FAQ

Shopify questions, answered.

Public app or custom app — which should I build? +

Custom (formerly private) for a single merchant; Public when you intend to sell or distribute. We help decide based on commercial goals.

How long until I’m approved on the App Store? +

Typical timeline: 8–12 weeks build, 2–4 weeks review. We’ve achieved first-pass approval on the last 9 apps we submitted.

Can you maintain the app after launch? +

Yes — fixed monthly retainers cover bug fixes, Shopify API version bumps and feature work to a roadmap.

What stack do you use? +

Remix + TypeScript, Prisma, Postgres, Shopify CLI, Functions in Rust, deployed on Fly.io or Vercel.

About Shopify App Development

Professional Shopify App Development Shopify services built to scale.

Raulji Technologies delivers Shopify App Development for ambitious brands worldwide. Whether you need rapid shopify app development prototyping, a full production launch or long-term shopify app development partnership, our certified team blends strategy, design and engineering into a single accountable workflow. Every shopify app development engagement starts with a discovery sprint, then moves through architecture, build, QA and measurable post-launch growth — so you get more than code, you get outcomes from your shopify app development investment.

What our Shopify App Development package includes

  • End-to-end shopify app development delivered by senior specialists
  • Proven shopify app development roadmap with weekly milestone reviews
  • SEO-ready architecture baked into every shopify app development build
  • Performance, security and accessibility audits across the shopify app development lifecycle
  • Transparent reporting dashboards for your shopify app development engagement
  • Post-launch support, training and continuous shopify app development optimisation

Why Shopify App Development matters for your business

A modern shopify app development programme drives measurable revenue, reduces technical debt and unlocks new channels. Our shopify app development approach focuses on three compounding levers: speed-to-market, conversion rate and search visibility.

By treating shopify app development as a growth engine — not a one-off project — we help teams unlock 2-4x ROI within the first year. Each Shopify App Development decision is informed by analytics, A/B testing and customer feedback so the impact compounds quarter after quarter.

Related capabilities

Magento to Shopify Migration Shopify Store Setup Shopify Custom Development Shopify Plus Development Headless Shopify Development Shopify Theme Design

Why choose Raulji for Shopify App Development?

15+ Years of Shopify App Development Expertise

Our team has shipped hundreds of shopify app development projects across retail, SaaS, healthcare and B2B — so the playbooks behind successful shopify app development are already battle-tested.

Senior-Only Shopify App Development Talent

Every engineer assigned to your shopify app development engagement is hand-picked, vetted and accountable. No juniors hiding behind agency layers.

Outcome-Driven Shopify App Development

We benchmark conversion, Core Web Vitals, organic visibility and revenue — then tune the shopify app development delivery until the numbers move in the right direction.

Get started with Shopify App Development today

Ready to launch or scale your shopify app development initiative? Tell us about your goals and we will share a tailored shopify app development proposal — including timeline, team composition and pricing — within one business day. Hundreds of clients already trust Raulji for production-grade shopify app development; you can be next. Request a free Shopify App Development consultation →

Free Shopify Health Check

Build a Custom Shopify App

Get a custom app built that extends your Shopify store’s capabilities.

Free Shopify Proposal

Get a Shopify architect on your project

Tell us about your store and we’ll send back a tailored Shopify App Development action plan with performance, SEO and revenue projections — within 24 hours.

Security & PCI baseline
Core Web Vitals diagnosis
Stack & extension audit
Quick-win roadmap
24h response
request.audit

Request your Shopify proposal

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