We build web applications for product teams, enterprises, and founders, from multi-tenant SaaS platforms and internal business portals to marketplaces, progressive web apps, and AI-enhanced web apps. With 13+ years of production engineering experience and ISO 9001 certified delivery, we serve web-first companies across 45+ countries at India rates with Western-grade discipline.
Whether you are launching a multi-tenant SaaS, replacing a legacy internal portal, building a two-sided marketplace, or shipping a PWA that needs to work offline, our web engineering team ships applications that move the metrics that matter: time to launch, monthly active user growth, and post-launch maintenance velocity.
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Multi-tenant SaaS platforms with auth, billing, role-based access, admin tooling, and the core feature set that defines the product. Our approach is supported by structured SaaS development services designed for long-term scalability and product evolution. We build on stacks that scale to multi-region and hold past the first thousand customers. The architecture decisions made at v1 are the ones you live with at v10.
Custom internal tools for operations, finance, HR, and customer service. Replacements for legacy intranet portals. Integrations with the systems of record your business already runs, including ERP, CRM, and HRIS. Internal tooling has different requirements from consumer apps: data integrity, audit trails, role-based access, and integration depth matter more than visual polish.
Two-sided and multi-sided marketplaces with supply onboarding, demand discovery, transaction flow, ratings, dispute handling, and platform analytics. Marketplaces are the hardest web application category to scope accurately. There are always more edge cases than the brief shows. We have shipped enough to know where to draw the line early.
PWA development covers applications that install on the home screen, work offline, and push notifications without going through an app store. The right choice when you need broad reach without committing to native mobile, or when your users are on managed devices that block App Store installs. We use Service Workers, Workbox, and the Web Push API. Offline-first data sync is part of the build.
SaaS web app development at ScalaCode covers the full stack: multi-tenant data isolation, subscription billing, onboarding flows, role-based permissions, admin dashboards, and the observability layer that tells you what is breaking before your users do. We have shipped SaaS platforms from v1 to series-funded scale.
Web apps where AI is integrated into the product flow rather than listed as a feature. RAG-powered search, AI agents inside dashboards, AI-driven personalization, and AI workflow assistants embedded in product flows. We work with OpenAI, Anthropic Claude, Google Gemini, LangChain, and vector databases, including Pinecone, Weaviate, and pgvector.
We run a structured process from first call to post-launch. Below is how a typical engagement moves, whether you are building with us as an MVP software development company or looking to hire software developers for long-term product development.
60-minute call. We learn your product, users, tech stack, and constraints. We agree on the scope envelope and engagement model.
We propose engineers from our vetted bench. You interview and approve each one. The team connects into your tools, including GitHub, Linear, Slack, and your QA stack.
Two-week sprints with demos, written status updates, deployed previews, and code reviews you can audit at any point.
Production readiness review, observability wiring, runbook handover. Post-launch, the same team continues into maintenance or the next build phase.
Most web app development companies ship to spec. We do that, and we also tell you when the spec is wrong. Here is where our engineering practice differs from the standard agency model, especially when teams compare us with a mobile app development company or other cross-platform vendors.
Most web apps fail at year two because the foundation was built for v1 demand. We build on stacks that survive past launch day. Postgres-first data model. Type-safe end to end. Real test coverage. Observability was wired in before the first deploy.
Most agencies treat tests and CI as nice-to-haves. We treat them as part of the build spec. Test coverage at least at the integration layer, end-to-end smoke tests on the critical flows, and CI that catches regressions before code review.
We work with AWS, Google Cloud, Azure, Vercel, Render, Fly, and Supabase. We pick by your scope, your team’s existing skills, and your unit economics, not by what we have a partnership with.
Documented engineering process. Clutch and GoodFirms-verified reviews. Indiarate billing with Western-grade engineering discipline. You get the cost arbitrage without the quality compromise.
SaaS, internal tools, marketplace, PWA, government, accessibility-focused fintech, healthcare, and media. Real shipped apps with real users. Ask any vendor to show you the same.
Most web application engagements at the enterprise end are not greenfield. They are replacements for a legacy app that has accumulated ten or fifteen years of business logic, integrations, and undocumented behavior. The migration path matters more than the new stack.
Two to four weeks of auditing before we propose anything. We document the data model, integration points, undocumented business rules, and the risk surface. We interview the people who know what the codebase actually does. Most legacy apps have a few engineers who are the only people who understand specific subsystems; we capture that knowledge before they leave.
We rarely recommend a big-bang rewrite. The strangler pattern lets you migrate one subsystem at a time while the legacy app keeps running. New features ship on the new stack. Legacy features migrate in priority order. The cutover happens when there is nothing left on the old stack worth migrating.
For high-risk subsystems, we run new and old in parallel for a defined window, comparing outputs to catch behavioral drift. Once the new subsystem is verified, the old code is decommissioned, and the team moves to the next subsystem.
Data migration is its own workstream with its own engineering lead. We design the migration to be repeatable, auditable, and reversible. Production data migrations happen during off-peak windows with rollback plans on standby.
Pick the model that matches how you want to engage.
| Model | Best for | How billed |
|---|---|---|
| Dedicated team (most common) | Multi-month roadmap with shifting priorities. You manage product, we provide engineering velocity. | Per engineer per month, $1,200 to $4,000 by seniority. Three-month minimum. |
| Fixed-scope project | A defined deliverable such as a v1 SaaS launch or a specific portal rebuild. | Lump sum with milestone payments. Best when scope is genuinely fixed. |
| Staff augmentation | Adding named web engineers to your existing engineering team. | Per engineer per hour, $13 to $25 by seniority. |
| Time and materials | Discovery, prototypes, or exploratory builds where the spec is still being defined. | Hourly with a monthly cap. |
| What you might compare | Where ScalaCode fits | When it might not |
|---|---|---|
| US-based web agency | India delivery at three to four times lower cost for equivalent engineering quality. ISO 9001 process, Clutch-verified reviews. | If procurement requires a US contracting entity and onshore data residency, contracting is more involved. |
| Freelance web developer | We bring engineering management, QA, test coverage, and team continuity. A freelancer has none of those by default. | If you have one small feature to add and you already have a project manager, a freelancer can fit. |
| No-code platform (Bubble, Webflow, Retool) | We build the custom layer when no-code hits its ceiling. Most production web apps outgrow no-code within 18 months. | If your scope genuinely fits inside Bubble, Webflow, or Retool, do not pay for custom. We will tell you when that is true. |
| Building in-house | Faster time to launch and lower fixed cost than hiring a five-engineer web team. | If you already have a senior web lead and want to staff around them, partnership may suit better than a full team. |
Product teams building or scaling SaaS platforms: Multi-tenant architecture, auth and billing, role-based access, admin tooling, observability.
Internal portals, custom business apps, legacy app replacements, ERP and CRM-adjacent tools. Integration depth matters more than mass-market polish.
Two-sided and multi-sided platforms: Supply onboarding, demand discovery, transaction flow, payment splits, ratings, dispute handling.
Founders launching a web app v1 ahead of a mobile companion: Often paired with our MVP development engagement for the first build, then transitioning into ongoing engineering after launch.
$13-$15/hr
$18-$20/hr
$23-$25/hr
$1,200-$1,500/month
$1,800-$2,200/month
$2,400-$2,800/month
$3,200-$4,000/month
I looked around at several developers to compare costs, but they didn’t fit within my budget. Finally, I reached out to a company in India called ScalaCode. We set up several online meetings over a couple of weeks and came up with an app that did exactly what I wanted within my budget. I can confidently say that ScalaCode has been an excellent choice for me.
Ruddy McKenzie
Founder of RM EPOSStakeholders are impressed with ScalaCode deliverables. The mobile app has been accepted on both Google Play and App Store. Moreover, we are impressed with the team’s range of abilities from design and development to database and app creation. Overall, the engagement has been a success.
James Ellis
Owner, Artist-Tipping PlatformScalaCode provides great results, uplifting the collaborative experience with their impressive project management style. The team always delivers as expected, which is manifested by the length of the ongoing relationship with us. Overall, their services have been impressive.
Jaa St. Julien
Pres. & Chief Strategy Officer - St. Julien CommunicationsStakeholders are impressed with ScalaCode deliverables. The mobile app has been accepted on both Google Play and App Store. Moreover, we are impressed with the team’s range of abilities from design and development to database and app creation. Overall, the engagement has been a success.
Manuel
CEO, 4SaleThe application was basically built from scratch, and was complicated, as the software was to be integrated with a certain Medical EHR software. As the CEO of SHG, I was very pleased with the services, expertise, and support we received from ScalaCode, from the beginning directly through the first LIVE implementation.
Stephen Holmes
CEO, Steve Homes GroupThe iOS and Android apps exceeded the expectations of the internal team. ScalaCode crafts high-quality products that are easy to use and fit the requirements of the client. The team is technically experienced, hard-working, and knowledgeable.
Carolyn Dare
Director, Empowered AchieverI needed a reliable team on-hand, and ScalaCode delivered. Their excellent availability and project oversight made a big impact.
Faid Lalji
Learn ArenaOur XR project had unique hurdles, but ScalaCode grasped it fast and delivered beyond expectations with excellent collaboration.
Alessandro
CEO / Founder (XR Company)A website presents content. A web application enables users to perform actions: log in, edit data, complete workflows, transact, or collaborate. The engineering complexity, security model, and infrastructure requirements are higher because users perform actions with consequences.
Simple web app: 6 to 12 weeks. Mid-complexity SaaS or B2B portal: 12 to 24 weeks. Enterprise-grade: 20 to 40 weeks. Marketplace: 18 to 36 weeks. Progressive web app: 10 to 22 weeks.
India delivery: $20,000 to $500,000 depending on scope. Hourly rates $13 to $25 by seniority. Monthly dedicated team $1,200 to $4,000 per engineer. Most mid-market builds land between $60,000 and $180,000.
PWA development is the right call when you need broad reach without committing to native mobile, when your users are on managed devices that block App Store installs, or when the experience runs comfortably inside browser capabilities. Native is right when the use case needs deep platform integration, advanced camera, background processing, or App Store distribution. We will tell you which fits your scope.
Yes. Salesforce, HubSpot, NetSuite, SAP, Workday, custom ERPs, plus SSO providers including Okta, Auth0, and SAML-based enterprise identity. Most production web applications require three to five system integrations. We treat integration design as part of the build specification.
You do. IP assignment is in the master service agreement. NDAs are standard. We set access controls and audit trails appropriate to your compliance requirements.
Yes, with a technical due diligence phase first. We audit the codebase, document its current state, identify risks, and propose a steady-state engagement. Most takeovers start with a three to four week stabilisation sprint before steady-state maintenance begins.
Usually within a few days of agreement. We agree on the scope, you interview and approve the engineers we propose, and they join your tools. Discovery to first shipped sprint typically runs three to five weeks for a clean start.
ScalaCode delivered a polished eCommerce app efficiently. Their professionalism and global readiness stood out.
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