SaaS & Startups
MVP to Series A.
Without the debt.
We scope, design, and ship core SaaS infrastructure in weeks, multi-tenancy, auth, payments, analytics, and the AI layer that makes your product defensible. We have done this for dozens of SaaS companies, from pre-seed to Series A.
Our experience
We have been the engineering team behind dozens of SaaS products.
Heimatverse has been the engineering team behind a significant number of SaaS products, from pre-seed MVPs through to Series A-ready platforms. Notable work includes Fluxr, a real-time influencer analytics SaaS with AI-powered campaign intelligence and automated reporting, alongside B2B SaaS tools in workforce management, sales intelligence, content operations, and developer tooling.
We understand SaaS architecture deeply: multi-tenant data isolation with row-level security, usage-based and seat-based billing with Stripe Billing, feature flagging with LaunchDarkly or self-built, self-serve onboarding flows with activation tracking, and the product analytics infrastructure (Mixpanel, PostHog, custom) that product teams need to make decisions.
We also know what slows SaaS companies down: premature abstraction, inconsistent data models, auth systems that break at scale, and the absence of an AI layer in a world where every competitor is adding one. We build to avoid those problems from the start.
How we help
SaaS Architecture & Infrastructure
Multi-tenant architecture with proper data isolation, scalable database design, CI/CD pipelines, feature flagging, and the observability stack that lets you know when something is wrong before your customers tell you.
Auth, Payments & Self-Serve Onboarding
Supabase or Auth.js for authentication including SSO, Stripe Billing for subscription and usage-based pricing, and the onboarding activation flow that gets users to value before their trial expires.
AI Integration & Differentiation
Claude and GPT integrations, RAG pipelines, agentic workflows, and the AI features that make your product genuinely better, not a ChatGPT wrapper bolted onto an existing feature list.
Product Analytics & Growth Infrastructure
Event tracking, funnel analysis, cohort retention, activation metrics, and the data warehouse pipeline that lets your product team answer their own questions without requesting a data pull.
What we build
Core Product MVP
The minimum viable product that proves your thesis, acquires your first customers, and gives you the feedback to prioritise what to build next, shipped in weeks, not quarters.
Multi-Tenant Architecture
Proper data isolation, workspace-level configuration, member management, permission systems, and the billing integration that charges the right workspace the right amount without manual intervention.
AI Feature Layer
The AI capabilities that make your product defensible, whether that is an AI assistant, an automated workflow, a classification engine, or an agentic system that works in the background without user prompting.
Scalability & Performance
Database query optimisation, caching layer, background job infrastructure, and the load testing that tells you where your bottlenecks are before you get the TechCrunch spike.
Who it's for
First-time and repeat founders who need a technical co-founder replacement or a senior engineering team to build the MVP that wins the seed round, without hiring a full team too early.
Post-seed companies with initial traction who need to move faster, add AI capabilities, or fix the architectural decisions that made sense at MVP but will not scale to a thousand customers.
Series A companies who need to augment their internal team, add specialised capability (AI, data, infrastructure), or ship a new product surface without distracting the core team.
Relevant services
Building a SaaS product?
We have done this more times than we can count. Tell us what you are building and we will tell you how fast we can ship it.