Backend Development Services

What Backend Development Really Is

Backend development is the engineering of everything your users never see but always depend on: the layer that stores your data, enforces your rules, talks to payment processors and partners, authenticates every request, and serves the APIs your web and mobile apps call thousands of times a minute. When the backend is right, the product feels instant and nothing breaks under load. When it is wrong, you feel it as slow screens, lost orders, security gaps and a rewrite that arrives far sooner than anyone planned.

A strong backend is a set of deliberate decisions about how data is modeled, how services talk to each other, how failures are contained, and how the whole thing scales when traffic multiplies. Those decisions are cheap to make well at the start and expensive to fix once millions of records and a live user base are riding on them. This is exactly why senior judgment matters more here than almost anywhere else in software.

At DevzAura we treat the backend as the long lived core of your business, not a quick service behind the screens. We design for the throughput, compliance and integration reality you actually operate in, then build it in tested increments you can see working every week. The result is a system your team can own, your regulators can audit and your customers can trust.

When You Need Backend Engineering

• Your app works in a demo but slows down, times out or crashes the moment real traffic arrives
• You are launching a new product and want the data model and APIs right before they are hard to change
• A monolith has become a bottleneck and you need to split it into services your teams can ship independently
• You are integrating payments, ERP, logistics or partner systems and need reliable, reconciled data flows
• You must prove data residency and compliance to a European regulator or an enterprise procurement team
• You want to add AI features and need a data layer and endpoints that support retrieval and agents safely
• Your current backend has no real tests, monitoring or documentation, and every change feels risky

What It Costs and How Long It Takes

We publish ranges instead of hiding behind opaque quotes. Real costs depend on endpoint count, integration depth, scale targets and compliance load, and we scope yours after a short discovery so the number reflects your project, not a generic average. Industry 2026 guides put simple APIs around USD 4,000 to 12,000 and complex enterprise grade APIs at USD 80,000 to 150,000 and above, while Berlin backend work commonly runs from about EUR 25,000 for basic API development to EUR 200,000 and beyond for complex enterprise microservices.

As a European build guide, an MVP backend usually lands between EUR 18,000 and 40,000, a mid sized platform between EUR 45,000 and 160,000, and an enterprise system at EUR 200,000 and up. On timeline, a focused API or service typically ships in weeks, an enterprise API commonly runs three to six months with several senior engineers, and a full move to microservices for a large system can span a year or more. We keep yours as lean as the requirements honestly allow.

• MVP backend or focused API: roughly EUR 18,000 to 40,000 (about USD 8,000 to 20,000), often delivered in weeks
• Mid sized platform with several services and integrations: roughly EUR 45,000 to 160,000 (about USD 20,000 to 82,000)
• Enterprise backend and microservices: EUR 200,000 and up (USD 82,000 and up), scoped after discovery
• Dedicated senior team: a transparent monthly rate, typically well below the USD 60,000 a month that US and European teams charge for equivalent senior capacity
• Pricing quoted in EUR, GBP or USD, with the scope, milestones and assumptions written down before we start

What You Get

• A documented, versioned API your frontend and partners can integrate against with confidence
• A data layer tuned for your real query patterns rather than generic defaults
• Infrastructure you can reproduce, scale and audit, defined as code rather than clicked together
• A clear residency and compliance posture you can present to regulators and enterprise customers
• Observability built in, with structured logging, distributed tracing, metrics dashboards and alerting
• A backend ready to add AI features without a re architecture
• Clean documentation and knowledge transfer so your team can own the system