What is a Tech Stack?

If you’re building a tech product, you already have a tech stack – whether you know it or not. But what is a tech stack? It is the combination of programming languages, frameworks, and tools used to build and run your app. Think of it like the ingredients in a recipe. Your tech stack determines how your product is built, how easy it is to maintain, how fast it runs, and how well it can scale as your users grow.

Why Founders Need to Care About Their Tech Stack

We meet a lot of founders who choose plug-and-play tools because they’re “easier.” Tools like Webflow, Bubble, Shopify or Firebase. These are great for prototypes or internal tools.

But if you’re building a venture-backed, scalable product, you need more than shortcuts. What is a tech stack if not a cornerstone of your product’s long-term success? The wrong tech stack might limit your IP ownership, slow down your team, or lead to expensive rewrites later. Choosing the right stack upfront can save months of wasted time and thousands in costs.

What Are the Types of Tech Stacks?

Every app has two main parts:

• Frontend: What users see (buttons, pages, interface)
• Backend: What runs in the background (databases, payments, servers)

Some teams use different languages for each part. For example, React on the frontend and Ruby, .NET, or Java on the backend. This can work, but it often slows you down and increases maintenance costs.

A fullstack approach uses the same language end to end. For example, JavaScript across the frontend (React), backend (Node.js), and cloud infrastructure. It’s faster to build, easier to manage, and better for scaling.

You might also hear about:

• Low-code or no-code tools like Bubble or Webflow. These are great for MVPs but can limit customisation and scalability.
• Serverless stacks. These remove the need for traditional servers and can significantly cut hosting costs and complexity. Baseline is built this way.

Bottom line: if you’re building a serious, scalable product, fullstack is the way to go.

What Tech Stack Does Devika Use?

At Devika, we use a fullstack JavaScript and serverless architecture for most products we build. It’s a modern, flexible approach designed for startups. Here’s what that means for founders:

• One developer can build the entire product. Since everything is in JavaScript, we don’t need separate frontend, backend, and infrastructure teams.
• We reuse common components across builds. This includes authentication, payments, databases, and infrastructure. It saves time and money, especially in the MVP stage.
• It’s built to scale from day one. You don’t need to rebuild when your user base grows.

Some typical components we use include:

• React for the frontend
• Node.js for backend logic
• PostgreSQL or DynamoDB for data
• AWS serverless tools for infrastructure
• Pre-integrated services like Stripe (payments), Auth0 (authentication), and OpenAI (when AI features are needed)

After building over 100 apps, we noticed we were solving the same problems again and again. So we took those learnings and turned them into an open-source framework called Baseline.

Baseline is a pre-built, production-grade foundation for modern startups. It accelerates early development without locking founders into inflexible platforms. Everything we build today, from MVPs to high-scale platforms, starts with it.

What Happens If You Get It Wrong?

Choosing the wrong stack can be painful:

• IP ownership: Some tools lock you into their platform.
• Development costs: The wrong setup can blow out timelines and budgets.
• Maintenance: More complexity means more people and more time.
• Hosting: Older stacks often require expensive infrastructure.
• Scalability: You might hit performance limits and need to rebuild.

One founder we worked with spent $100k on an MVP that couldn’t scale. They had to start over. A better stack would have avoided that entirely.

Ready to Build Smarter?

What is a tech stack if not a business decision, not just a technical one? If you’re serious about building a scalable product, it’s worth getting it right from day one.

Want to future-proof your product? Download our free guide: How to Build an MVP That Attracts Investors.

Devika: 100% Onshore Web & Mobile App Developer Australia

Devika is a full-service mobile app developer in Sydney, offering everything from tech advisory to custom development and early-stage investment under one roof.