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Web Application Development Agency

Web Application Development — SaaS apps, internal tools, dashboards.

SaaS apps, internal tools and dashboards built in React, Next.js, Laravel and Node — production-grade from day one, designed to scale with your business.

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  • SaaS-grade architecture from sprint one
  • React, Next.js, Laravel, Node — chosen per project
  • Multi-tenant, role-based auth, audit logging built in
What is Web Application Development?

Web Application Development — explained without the jargon.

A web application is a different beast to a marketing site. Authentication, multi-tenancy, role-based access control, real-time updates, audit logging, billing, webhooks — these aren't plugins, they're architecture decisions made at week one. We've shipped 40+ web applications from internal tools to multi-tenant SaaS products serving thousands of users. The framework changes per project — the engineering discipline doesn't.

Why it matters

Three things most teams get wrong about web application development.

01

Architecture decisions stick

You can refactor a feature in a week. Refactoring your multi-tenancy model in year 2 costs 6 months of engineering. Architecture matters.

02

Generic builders hit ceilings fast

Bubble, Webflow, Retool work to ~50 users. Beyond that, custom code is faster, cheaper to maintain, and lets you actually scale.

03

SaaS is more than CRUD

Auth, billing, audit logs, real-time, observability, multi-tenancy — they're foundational. Get them right early.

What's included

Everything we ship under Web Application Development.

01

Architecture & system design

Multi-tenant strategy, database schema, API design, scaling plan — decided week one.

02

Authentication & RBAC

Auth0, Clerk, custom auth. Role-based access control, SSO, audit logging.

03

Billing integration

Stripe Billing, Paddle, recurring revenue, usage-based pricing, dunning, customer portals.

04

Real-time features

WebSockets, server-sent events, presence, live cursors when the UX needs it.

05

API design

REST or GraphQL, versioned, documented, with SDK generation if needed.

06

DevOps & observability

CI/CD, infrastructure as code, Sentry, Datadog, log aggregation, alerting.

Our process

How we deliver web application development.

A predictable 5-step engagement — no surprises, no scope creep, no theatre.

  1. 1

    Discovery

    Product, users, scale targets, integration map.

    Weeks 1-2
  2. 2

    Architecture

    Tech stack decision, database schema, API design, infra plan.

    Weeks 2-3
  3. 3

    Engineering

    2-week sprints, code on your GitHub, demos every Friday.

    Weeks 4-20
  4. 4

    QA + security

    Internal QA, penetration testing, security review, accessibility audit.

    Weeks 20-22
  5. 5

    Launch + ops

    Production deploy, monitoring set-up, on-call rotation, post-launch support.

    Week 22+
Tools we use

Battle-tested stack.

React / Next.js Laravel / Node.js PostgreSQL / MongoDB AWS / GCP Stripe / Paddle Auth0 / Clerk Sentry / Datadog GitHub Actions
Industries we serve

Vertical expertise.

SaaS Startups
Enterprise Internal Tools
FinTech
HealthTech (HIPAA)
Marketplaces
Education Platforms
Logistics
B2B Workflow Tools
Web Application Development · Case Study

Multi-tenant SaaS: 0 → 1,400 active accounts, $4.2M ARR

A B2B SaaS founder came to us pre-product. We ran 2-week discovery, designed the multi-tenant architecture (Postgres row-level security, tenant-aware caching), built the MVP in Laravel + React over 14 weeks, and shipped to 8 design partners. 18 months later: 1,400 active accounts, $4.2M ARR, 99.95% uptime, 180ms API P95.

See all case studies
1,400
Active accounts
$4.2M
ARR year 2
99.95%
Uptime
180ms
API P95
Why Hitman Digital

Four reasons clients choose us for web application development.

Senior architecture

Multi-tenant SaaS, scale planning, billing complexity — we make the call once and you don't refactor.

Framework-agnostic

Laravel, Node, Next.js, Rails — we choose the right tool for the project, not our favourite.

Security by default

Auth, RBAC, audit logging, OWASP Top 10 hardening — baked in from sprint one.

Post-launch operations

SaaS doesn't end at launch. Most clients stay 18-36 months for ongoing engineering + ops.

FAQ

Questions you were going to ask anyway.

What's the typical SaaS MVP cost?
MVPs land in the $35K-$90K range depending on complexity. Adding billing, multi-tenancy, RBAC, real-time features each adds 2-4 weeks of engineering.
Should we use no-code tools (Bubble, Retool)?
For internal tools with <50 users — yes, often the right call. For customer-facing SaaS expecting growth, no — they hit performance and customisation ceilings within 12 months. We'll model the trade-off per business.
How do you handle multi-tenancy?
Three patterns depending on scale: row-level security (single DB, tenant column), schema-per-tenant (Postgres schemas), or database-per-tenant (for highly regulated industries). Chosen during architecture.
Do you handle SOC 2 / HIPAA compliance?
Yes — we've shipped SaaS products for both. SOC 2 prep involves architecture, logging, access control, and policy documentation. HIPAA adds encryption-at-rest requirements and BAA management.
What about ongoing maintenance?
Most clients keep us on retainer post-launch ($3K-$15K/mo) for feature development, security patching, performance work, and on-call response.
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