SaaS platforms built to survive growth.
15 years. Hundreds of SaaS products shipped. From first commit to Series C — and every stage in between. We know which architecture decisions kill products at 10,000 customers. We make the right ones on day one.
Most SaaS products are built for launch day. Not for year three.
The typical pattern: ship an MVP fast, cut corners on multi-tenancy, bolt on billing, skip the admin tooling. It works — until it doesn't. At 1,000 customers, the data model breaks. At 5,000, the billing system fails. At 10,000, a rewrite costs more than the original build. We've seen this happen dozens of times. We've also prevented it dozens more.
of SaaS products require significant architectural rework before Series B
Based on SDTC Digital delivery experience across 200+ SaaS engagements
What we do differently
The decisions that matter are made before sprint one.
Multi-tenancy strategy. Data model design. Billing infrastructure. Authentication architecture. These aren't implementation details — they're product strategy decisions that determine what you can build in year two. Most teams make them under pressure, mid-sprint, when changing them is expensive. We make them in week one of TechBlueprint discovery, when changing them costs a conversation.
Every SDTC SaaS engagement starts with a 2-week architecture sprint — documented, reviewed, and signed off before development begins.
Everything in our SaaS engagement.
Not a feature list — a complete system. From architecture through monitoring.
Row-level security, schema-per-tenant, or database-per-tenant — selected based on your compliance requirements, scale projections, and query patterns. We design the tenant management system, provisioning flows, and the data isolation that prevents one customer's data ever appearing in another's view.
The decision most teams get wrong
Multi-tenancy is a data architecture decision. Not a feature.
Teams that treat multi-tenancy as something to 'add later' face a data migration at exactly the wrong time — when their product is growing and their team is stretched. The right multi-tenancy model for your compliance requirements, your customer scale, and your query patterns is a week-one decision. We've made it hundreds of times. We know which approach fits which situation.
Row-level security
Row-level security
One database, tenant isolation via RLS policies. Fast to build, right for most SaaS products at launch.
Schema-per-tenant
Schema-per-tenant
Isolated schemas within one database. Better isolation, still manageable. Right when tenants need customisation.
Database-per-tenant
Database-per-tenant
Complete data isolation. Required for regulated industries and enterprise contracts with data residency requirements.
The stack we recommend — and why.
Selected for your requirements, not our comfort zone. Every decision explained.
We build SaaS frontends in Next.js by default — server rendering for performance, React for component reuse, TypeScript for type safety across the full stack.
App router, server components, built-in optimisation. Our default for SaaS products.
Type safety prevents entire categories of production bugs. Non-negotiable on SaaS at scale.
Utility-first — fast to build, consistent output, easy to maintain across a growing codebase.
Server state management — caching, background refresh, optimistic updates. Eliminates a class of UX bugs.
Accessible, unstyled primitives that we style to your design system. Saves months of component work.
Four phases. No surprises.
Every phase has a deliverable. Every deliverable is reviewed and signed off. No phase starts without the previous one being complete.
TechBlueprint discovery
Product scope, architecture design, data model, multi-tenancy strategy, and infrastructure plan — documented in a TechBlueprint document reviewed and approved by your technical stakeholders. The investment here prevents the expensive surprises in week ten.
Foundation build
Authentication, multi-tenancy, billing, and CI/CD infrastructure first. The load-bearing decisions built correctly before product features are added. We ship the foundation to staging and your team reviews it before product development begins.
Product build
Feature development in two-week sprints. Working software shipped to staging every two weeks — you see it, test it, give feedback. Priorities can shift between sprints. No big reveal at the end of six months.
Launch & 90-day optimise
Production deployment with monitoring from day one. 90-day post-launch period — performance tuning, iteration based on real user analytics, and early customer feedback shaped into the next sprint. We stay through the critical early months.
From the founder
Why most SaaS products need to be rebuilt — and how we prevent it.
Swarnendu De on the three architecture decisions that determine whether a SaaS product scales or stalls — and how SDTC Digital approaches them from day one.
Logistics · SaaS · 70+ countries
1M+ daily active users. Built by SDTC Digital.
AllRide is a multi-tenant SaaS platform covering cab rental, bus networks, food delivery, grocery delivery, courier services, and enterprise fleet management. Built from first principles — one platform, multiple business models, 300+ companies running on it across 70+ countries.
Daily active users
Countries
Businesses on the platform
Who builds it
Senior engineers. Not handed off to juniors.
Every SaaS engagement is led by a senior SDTC engineer with 8+ years of production SaaS experience. The architect who designs your system in week one is in your sprint reviews in week eight. Swarnendu De is directly involved in every TechBlueprint architecture review — because the decisions made there are too important to delegate.
- Average engineer experience: 8+ years
- Swarnendu De — architecture review on every engagement
- Dedicated team — no rotation, no handoffs
- Direct Slack access to the engineering lead
Questions we hear often.
A properly scoped SaaS MVP — one core user journey, production-grade architecture, billing, auth, and admin tooling — takes 12–16 weeks with a dedicated team. The timeline depends entirely on feature scope, integration complexity, and how quickly stakeholders can review and approve each phase. We timeline-box the scope, not the other way around.
INSIGHTS
Thinking worth reading
Let's scope your SaaS platform.
Tell us what you're building. We'll come back with a clear architecture recommendation, a realistic timeline, and an honest view of what it will cost. No pitch. No proposal until we understand your actual challenge.