# MVP & SaaS Product Development > We build MVPs and SaaS products from scratch, with an architecture ready to scale: payments, authentication, invoicing and API integrations. - Source: https://maxdev.ro/en/industries/startups-saas/ - Romanian version: https://maxdev.ro/industrii/startup-uri-saas/ - Site index for AI: https://maxdev.ro/llms.txt --- **You need a working MVP, not a proof of concept you'll throw away.** [We build SaaS products from the first line of code](https://maxdev.ro/en/services/software-development/), with an architecture that holds up when your first users become thousands of users. For technical and non-technical founders who want a development partner, not just a short-term freelancer. ![Admin dashboard for a startup or SaaS product](https://maxdev.ro/assets/_opt/pages/industrii/startup-uri-saas/hero-fc5327d6-640.webp) ## What usually breaks between the idea and a stable product. We've seen the same problems in MVPs built in a hurry, regardless of niche. Here's where they show up most often. **MVP built to be thrown away, not extended** Code written fast, with no structure, that has to be rewritten completely as soon as real users or the first funding round show up. **Authentication and payments improvised** Login, user roles and payment processing built ad-hoc, without following standard security practices. **Architecture that doesn't hold up under growth** The product works fine with 50 users, but gets slow or unstable as soon as traffic grows. **[API integrations hard to add later](https://maxdev.ro/en/services/api-integration/)** Without an architecture built for integrations, every new connection (Stripe, email, other services) becomes a separate project. **No clear metrics on usage** Founders make product decisions without real data on how and how much users actually use existing features. **Code with no tests, hard to maintain** Every new feature risks breaking something old, because there are no automated tests to catch regressions. **Infrastructure cost growing out of control** Without an optimized architecture, hosting costs grow faster than the number of paying users. ## What we build for startups and SaaS products. We build the things that matter at scale from the foundation up, not just the visible interface. MVP & ARCHITECTURE ### An MVP built as a foundation, not a throwaway prototype. We choose a modern stack (Next.js, relational databases, cloud services), designed so the first version can grow directly into the final product. Modular architecture, ready for new features Authentication and user roles built correctly from the start Clean codebase, easy for a new team to pick up PAYMENTS & INVOICING ### Subscriptions, payments and invoices, integrated correctly. We connect your product to Stripe for recurring payments and to Oblio for automatic invoicing, so billing works with no manual intervention. [Subscriptions and recurring payments via Stripe](https://maxdev.ro/en/services/ecommerce-integrations/payment-processors/) Automatic invoicing for every transaction Plan upgrade and downgrade management SCALING & MAINTENANCE ### The product grows without being rewritten from scratch. [We optimize infrastructure on Docker and Cloudflare](https://maxdev.ro/en/services/wordpress-woocommerce-hosting/), add monitoring, and stay with your team for maintenance and new features. Infrastructure on Docker, easy to scale Monitoring and alerting for production issues Ongoing development of new features ## Companies that chose us as their technology partner. Some of the companies we have worked with so far. [Forelit](https://b2b.forelit.ro) [Hemerama](https://hemerama.com) [Somnexpert](https://somnexpert.ro) [Modularbox](https://modularbox.ro) [Electrocamelite](https://electrocamelite.ro) [Pigeonshop](https://pigeonshop.ro) [Rinostore](https://rinostore.ro) [Irigarden](https://irigarden.ro) [Travandi](https://travandi.ro) [Somnart](https://somnart.ro) ## Questions we get asked a lot. ### Can you build an MVP from scratch, with no existing code? Yes, it's one of the things we do most often: we start from the product idea and deliver a first working version, ready to test with real users. ### What tech stack do you use for SaaS products? Usually Next.js for the app, a relational database, Stripe for payments and Docker for infrastructure, but we pick the right stack for each project. ### Can you take over an MVP built by someone else or an in-house team? Yes. We review the existing code, identify what can be kept and what needs rebuilding, then continue development or restructure the architecture where needed. ### How do you handle subscriptions and recurring payments? We integrate Stripe for full subscription management: upgrades, downgrades, failed payment retries and automatic invoicing through Oblio. ### Do you stay involved after the MVP launches? Yes, we offer ongoing development and maintenance, so the product evolves as you learn more from real users. ### How long does it take to build a working MVP? It depends on the product's complexity, but an MVP with the essential features can be ready in 6-10 weeks. --- ## Contact - Phone: +40 735 343 355 - Email: contact@maxdev.ro - WhatsApp: https://wa.me/40735343355 - Book a call: https://cal.com/daniel.maxdev - Address: 66A Theodor Pallady Blvd, District 3, Bucharest, Romania