Products Built to Scale
From MVP to enterprise — we engineer software that grows with your business
We build products, not just features. Our engineering team has shipped SaaS platforms, mobile apps, and enterprise systems used by millions. Clean code, modern stack, no technical debt.
What We Offer
Comprehensive solutions tailored to your specific needs and goals.
SaaS Platform Development
Multi-tenant platforms with subscription billing, user management, and analytics built-in.
- Multi-tenant architecture
- Subscription & usage-based billing
- User management & RBAC
- White-labeling support
Web Application Development
Modern, responsive web applications with excellent performance and SEO.
- React/Next.js frontend
- Server-side rendering
- Progressive web apps (PWA)
- Real-time features
Mobile App Development
Cross-platform iOS and Android apps with native performance.
- React Native / Flutter
- Native iOS & Android
- Offline-first architecture
- Push notifications
MVP Development
Rapid prototyping and MVP development to validate your idea fast.
- Lean development approach
- Rapid iteration cycles
- User feedback integration
- Scalable foundation
Products That Actually Ship
We've seen too many projects die in development. Ours don't.
- 50+ products shipped to production — not prototypes, not demos, real products with paying users
- We've helped startups raise Series A with products we built in 4 months
- Architecture designed for scale — our products handle millions of users without rewrites
- Fixed pricing means you know the cost before we start, and we eat overruns
Key Benefits
Ship Faster
Our experienced team delivers production-ready code quickly.
2x faster deliveryClean Architecture
Maintainable, scalable code that doesn't become technical debt.
Zero rewrites neededUser-Centric
Design and engineering focused on user experience.
95% user satisfactionBuilt to Scale
Architecture that handles growth without major rewrites.
10x traffic capacityOur Process
A proven approach that delivers results consistently.
Discovery & Planning
1-2 weeksUnderstand your vision, define requirements, and create a technical roadmap.
Design & Prototyping
2-3 weeksCreate high-fidelity designs and interactive prototypes for validation.
Development
6-12 weeksAgile development with bi-weekly sprints and continuous delivery.
Launch & Support
1-2 weeksProduction deployment, monitoring setup, and ongoing support.
Why Build Products With Us?
We've shipped 50+ products — not just built them, shipped them. To real users who pay money and file bug reports. That experience changes how we think about architecture, testing, and user experience.
We Ship Our Own Products
Integrio.AI, InfraPilot, Learnova — we build and run products ourselves. We know the difference between code that demos well and code that survives contact with real users.
Senior Engineers Only
No junior developers learning on your project. Our team averages 10+ years of experience. You talk directly to the people writing the code.
We Think Long-Term
We build systems your team can maintain and extend for years. Clean architecture, comprehensive tests, real documentation. Not just code that works today.
Outcome-Focused
We care about your product succeeding, not just hitting delivery milestones. We'll push back on features that don't make sense and suggest alternatives you haven't considered.
Real-World Use Cases
Examples from projects we've delivered — with real challenges, solutions, and outcomes.
Challenge
Needed MVP to raise Series A, previous agency delivered unusable code
Solution
Rebuilt from scratch with scalable architecture, launched in 4 months
Results
Challenge
Legacy system limiting growth, years of technical debt
Solution
Incremental modernization to Next.js with gradual migration
Results
Challenge
Shopify limitations blocking custom features and scale
Solution
Custom headless commerce platform with Stripe integration
Results
Challenge
Patient portal with poor UX causing support burden
Solution
Modern React app with HIPAA compliance and mobile support
Results
Case Studies
Real results from real projects.
AI Analytics SaaS Platform
Needed to build MVP in 4 months for Series A funding milestone.
Results
What Our Clients Say
"DevSimplex didn't just build our product—they helped us shape the vision. We couldn't have raised our Series A without them."
Frequently Asked Questions
How long does it take to build a SaaS product?
A production-ready MVP typically takes 3-4 months. A full-featured SaaS with all enterprise features can take 6-12 months depending on complexity. We've launched products in as little as 8 weeks when scope is tight and decisions are fast. The biggest variable is usually decision-making speed on your end, not our development capacity.
Do you work with startups or only enterprises?
We work with both, but we're selective. For startups, we typically work with Series A+ companies who have funding and clear product vision. For enterprises, we take on projects where we can own a meaningful piece — not just adding bodies to an existing team. The common thread is products where engineering quality matters.
What tech stack do you use?
We primarily use Next.js/React for frontend, Node.js or Go for backend, PostgreSQL for databases, and AWS/GCP for infrastructure. But we're not religious about it — if your team uses Python or you need to integrate with Java services, we adapt. We pick tools that make sense for the problem, not whatever's trending on Hacker News.
Do you provide ongoing maintenance?
Yes, and most clients stay with us. Every project includes 30 days of post-launch support. After that, we offer retainers for ongoing development, bug fixes, and scaling. We've worked with some clients for 5+ years across multiple products. It's easier than rebuilding context with a new team.
How do you handle design?
We have in-house designers who work alongside engineers from day one. No waterfall handoffs — design and development happen together. For clients with existing design teams, we integrate with their process and tooling. We're not precious about it.
Can you take over an existing codebase?
Yes, though we'll be honest about what we find. We start with a code audit to assess technical debt and security issues. Sometimes the best path is incremental improvement; sometimes it's a rebuild. We'll give you a straight assessment and let you decide. We've inherited some rough codebases and turned them around.
What if the project scope changes mid-development?
It happens. We work in 2-week sprints with regular demos, so you see progress and can adjust priorities. Major scope changes get quoted separately — we'll tell you the impact on timeline and budget, and you decide if it's worth it. No surprise invoices, but also no free work. Fair both ways.
Products We Built With This
See our expertise in action through the products we've shipped
Integrio.AI
AI-Powered Business Automation
Full-stack platform built with Go, Next.js, PostgreSQL
View productInfraPilot
Docker Infrastructure Cockpit
Open-source product built with our engineering practices
View productLearnova
AI-Native Education Platform
Next.js application with offline-first architecture
View productExplore Related Services
Other services that complement product engineering
Ready to Get Started?
Let's discuss how we can help transform your business with product engineering.