Build a SaaS Product That
Scales to Thousands of Customers
TechEin builds scalable, multi-tenant SaaS platforms from scratch — with subscription billing, AI features, and cloud-native architecture designed to handle your first customer and your ten-thousandth.
SaaS Pillars We Build
Multi-Tenant Architecture
Complete data isolation per customer organisation
Subscription Billing
Stripe, usage-based pricing, trial management
AI Feature Integration
LLM-powered features built into your core product
Analytics & Reporting
Per-tenant dashboards and platform-wide analytics
Every Capability Your
SaaS Platform Needs
From your first paying customer to your thousandth — we build SaaS platforms that are scalable, maintainable, and technically defensible from the start.
SaaS MVP Development
Launch your SaaS product with the core feature set that validates product-market fit — not the full roadmap. Get paying customers before you invest in scale.
- Core product loop only
- Stripe/Paddle subscription billing
- User onboarding & authentication
- Basic tenant management
- 8–12 week delivery
Multi-Tenant Platform Development
Build a true multi-tenant architecture where each customer organisation gets isolated data, custom branding, and role-based permissions — without separate deployments.
- Schema-per-tenant or row-level isolation
- Tenant admin portal
- Custom domain per tenant
- Tenant-level feature flags
- Usage metering per tenant
Subscription Billing Integration
Build complex subscription models that Stripe supports — free trials, per-seat pricing, usage-based billing, tiered plans, and annual vs. monthly with prorated upgrades.
- Stripe / Paddle integration
- Free trial & dunning management
- Usage-based billing metering
- Invoice generation & tax handling
- Subscription analytics dashboard
AI-Native SaaS Features
Build AI as a core differentiator — not a bolt-on. We architect AI features into the product foundation with proper cost management, caching, and per-tenant usage tracking.
- AI feature usage per subscription tier
- LLM cost attribution per tenant
- Token-based feature gating
- AI model routing & fallbacks
- Prompt management system
Analytics & Reporting Engine
Give your customers the data they care about — and give yourself the platform metrics you need to make product decisions. Built-in, not bolted on.
- Per-tenant usage analytics
- Custom report builder
- Scheduled email reports
- Platform-wide MRR/ARR dashboard
- Churn & retention metrics
API & Integrations Platform
B2B SaaS customers expect integrations. We build your public API, webhook system, and native integrations with the tools your target market already uses.
- Public REST / GraphQL API
- API key management & rate limiting
- Webhook delivery system
- Native integrations (Slack, Zapier, HubSpot)
- OAuth2 for third-party auth
Built to Scale from
Day 1 to Series B
SaaS products that can't scale past 1,000 users require an expensive rewrite just as they're gaining traction. We architect for scale upfront — without over-engineering the MVP.
Zero-Trust Multi-Tenancy
Every database query is tenant-scoped at the ORM level. Row-level security or schema isolation depending on your compliance requirements. No risk of data leakage between tenants.
Horizontal Scalability
Stateless API servers, Redis-backed session management, background job queues (BullMQ/Sidekiq), and auto-scaling infrastructure via AWS ECS or Kubernetes — scales with your growth.
Security & Compliance Ready
SOC 2-aligned logging and access controls, GDPR data deletion pipelines, encryption at rest and in transit, and security scanning baked into the CI/CD pipeline.
Feature Flags & Progressive Rollout
LaunchDarkly or Unleash integration for per-tenant feature flags, A/B testing, and gradual rollouts — ship faster with lower risk.
Battle-Tested Technologies
Used by Top SaaS Companies
We use the same technologies powering Notion, Linear, Vercel, and Loom — proven at SaaS scale, maintained by large communities.
Frontend
Backend
Data & Queues
Infra & Billing
How We Take Your SaaS
from Concept to Customers
Product & Architecture Discovery
Define your target customer, core value proposition, and differentiated features. Design the data model, multi-tenancy strategy, and integration architecture before writing code.
UX Design & Prototype
Design the full onboarding flow, dashboard, and key user journeys in Figma. Validate the UX with real target users before development starts — preventing expensive UX rework mid-sprint.
Core Platform Build
Authentication (Clerk/Auth0/custom), multi-tenancy, subscription billing, and the first version of your core feature — the foundation every future feature builds on.
Feature Sprints & Iteration
2-week sprints shipping working features. You join every sprint review, see the live product, and prioritise the next sprint backlog. The product evolves based on feedback, not assumptions.
Beta Launch & Analytics Setup
Controlled beta with your first customers. We set up product analytics (Mixpanel/Amplitude), error tracking (Sentry), and feature flags so you can iterate safely with real users.
Scale & Growth Retainer
Post-launch retainer for performance optimisation, new feature development, AI feature additions, and infrastructure scaling as your customer base grows. The same team, continuous momentum.
SaaS Development
Questions Answered
Building a SaaS product is a significant investment. Here are the questions every founder asks.
Let's Build Your SaaS
the Right Way, the First Time
Tell us your SaaS idea. We'll come back with an architecture recommendation, a feature-scoping approach, and a realistic fixed-price range — in a free 45-minute call.