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Service · 02

Web ApplicationsBuilt for real users at real scale.

SaaS platforms, dashboards, internal tools, customer portals, and real-time apps — engineered with type-safe APIs, RBAC, and observability from day one.

02What we build

What we ship. Every kind of app.

Categories that cover the full range of what “a web application” means in 2026 — from a multi-tenant SaaS to a real-time collaboration tool.

For software teams

SaaS Platforms

Multi-tenant subscription products with auth, billing, and admin in one codebase. Type-safe end-to-end and ready to scale across customer accounts.

For internal teams

Internal Dashboards

Ops, analytics, and admin tools for the people running your business. Fast queries on big tables, role-based access, audit logs out of the box.

For customers & partners

Customer Portals

Self-service surfaces for clients, members, vendors. Account management, support, document exchange — branded, secure, and accessible.

For collaborative tools

Real-Time Apps

Live presence, multi-user editing, websocket-driven dashboards. Conflict resolution, optimistic updates, and graceful reconnection built in.

AI
For AI-first products

AI-Enhanced Apps

Apps with retrieval-augmented chat, document intelligence, and agentic flows. Cost caps, evaluation pipelines, and fallbacks in production.

For multi-side platforms

Marketplaces

Two-sided platforms with onboarding, listings, payments, payouts, and reputation systems. Built for trust, scale, and regulatory readiness.

03Challenge & Solution

Common problems, honest answers.

The pain points we hear on almost every web-app kickoff call, and the way we solve each one. No magic — just the right architecture done with care.

Apps live in production for years. We engineer for the engagement that lasts that long — not the demo that lasts a sprint.

Honest fixes for common challenges. Same playbook on every engagement, calibrated to the size of your build.

04Why Devsoleil

What you can expect, on every project.

Type-safe APIs, real auth, real-time where it matters, performance at scale, and a path to multi-tenant — defaults on every engagement.

Type-safe end-to-end

Schema-first APIs, generated TypeScript types, runtime validation. The frontend and backend speak the same language — and the compiler catches the lies.

Auth + RBAC + audit

Role-based access, SSO connectors, per-action permissions, and activity logs on every mutation. Compliance-ready, not retrofitted.

Performance at scale

Virtualised lists, edge-cached reads, optimistic mutations. UI stays at 60fps from the first user to the hundred-thousandth.

Real-time when it matters

Websockets, presence, conflict resolution. Used surgically — only where staleness costs you trust, not on every list.

Mobile-grade interaction

Touch targets, gestures, offline tolerance — your dashboard works on a phone in the field, not just on a 27-inch monitor.

Custom features

Custom workflows your team uses daily, AI features only where they earn their keep, and engineers committed past v1.

05AI-driven development

Built with AI. Driven by humans.

AI accelerates execution on every layer — schema, API, UI, tests. Human judgement decides what gets shipped. The same way a senior engineer uses a great IDE.

  • 01

    Agentic AI workflows

    Multi-step agents that plan, execute, and self-correct on complex app tasks.

  • 02

    AI-assisted development

    Pair-programming with Claude inside the codebase — types, schemas, and tests.

  • 03

    Faster iteration cycles

    Spec → prototype → user review in days, not weeks.

  • 04

    Automated review & testing

    AI-generated unit, integration, and edge-case tests on every PR.

Featured pipeline

Agent loop

Planning, execution, evaluation, and shipping — cost-capped, human-approved, eval-gated.

Plan
Execute
Verify
Ship
  • Cost-capped
  • Eval-gated
  • Human approval
  • Fallback paths
AI accelerates · humans decide · craft ships
06Tech stack

What we build with.

Next.jsReactTypeScriptTailwindTanStackReduxSWRViteNode.jsExpressNestJSPrismaGraphQLtRPCHonoFastifyLaravelPostgreSQLMySQLMongoDBRedisSupabaseDrizzleAuth0Clerk
07How we ship

How we ship. No surprises.

Same workflow on every engagement, calibrated to project size. Discover, design, engineer, optimise, scale.

  1. 01

    Discover

    Workflows, user roles, data shapes, integrations. We map the system you have, the system you need, and what the gap costs.

    User flowsData modelIntegration map
  2. 02

    Design

    Component library, screen flows, role-aware UI. Every state — empty, loading, error, permission-denied — designed before code.

    Design systemPrototypeRole matrix
  3. 03

    Engineer

    Type-safe API, RBAC, audit logging, CI/CD. Tested on every commit, deployed to staging from week one.

    APIFrontendAuth + audit
  4. 04

    Optimize

    Performance budgets, observability, accessibility. Virtualised lists, optimistic UI, traces, alerts — all in before launch.

    Perf budgetsObservabilityA11y AAA pass
  5. 05

    Scale

    Multi-tenant rollout, automation, AI integrations. Launch is day zero — we stay through quarterly reviews and the next milestone.

    Multi-tenantCI/CDGrowth retainer
08Built for modern businesses

Industries we’ve shipped in.

We don’t do “all industries.” These are the verticals where we’ve done enough work to bring real domain context into the kickoff call.

SaaS

Multi-tenant platforms with billing, RBAC, and admin baked in.

Healthcare

HIPAA-aware patient portals, EHR integrations, audit logs.

Finance

KYC flows, secure dashboards, transaction views, compliance trails.

Logistics

Fleet ops, real-time tracking, dispatcher dashboards, route mgmt.

Education

LMS platforms, student/teacher dashboards, course management.

AI Startups

RAG-powered tools, eval dashboards, cost-capped agent flows.

Real Estate

Agent CRMs, property pipelines, virtual-tour back-offices.

Retail / E-commerce

OMS, inventory dashboards, customer-success portals.

Hospitality

Booking systems, multi-property admin, guest portals.

09Selected work

Receipts, not promises.

A glance at recent web-app engagements. The full story — problem, solution, tech, timeline — lives on each case-study page.

10The next move

Let’s build the application that runs your business.

Tell us where you’re going. We’ll come back with the senior engineer + designer who’d lead the engagement.

NDA-friendlyReply within a business day