Backend development services
for mobile and web apps

Backend development FAQs

• What do your backend development services include?

  Everything on the server side of a mobile or web product: the API your apps talk to, the database and data model, sign-in and roles, payments and notifications, admin panels, integrations with your ERP and other systems, and the AWS infrastructure it runs on, with monitoring from day one. Our backend development services cover new builds, takeovers of existing backends after a one-week code audit from $1,000, and maintenance under an SLA from $1,500/month.

• Can you take over our existing backend?

  Yes. We start with a one-week code audit from $1,000 covering the code, database, infrastructure and deployment, and you get a written report with risks ranked by severity and what to fix first. The takeover itself usually takes one to two weeks: we move repositories, deployment and monitoring to our team and fix what blocks the next release. Then we run the backend under a monthly SLA from $1,500, and the audit fee is credited against the first month.

• Custom backend or a platform like Firebase or Supabase?

  It depends on the product. A managed platform such as Supabase or Firebase is often faster and cheaper for a first version with standard needs. A custom API fits when the product needs its own logic, several integrations or full control over data and costs. We recommend one during product definition and write down why.

• Do you integrate with our ERP?

  Yes. We've delivered integrations with Microsoft Dynamics NAV (Navision) and Odoo. We also connect to SAP, Microsoft Dynamics 365 Business Central, Oracle NetSuite, Sage, DATEV and any other ERP that exposes an API, a database or scheduled exports. Before we build, we map which data moves in which direction and how often, and agree what happens when a sync fails. After launch, monitoring tells us when an integration breaks.

• How long does an API integration take?

  It depends on the systems involved, how well their APIs are documented and how much data has to be cleaned or mapped. We scope each integration before we start and give you a fixed price and a timeline in writing, so you know the cost before any work begins.

• Who handles hosting and monitoring after launch?

  We do, under the maintenance plan: error, performance and uptime monitoring on the backend, security patches, dependency updates and fixes within SLA times, with critical issues answered within 4 business hours and fixed within 1 business day. The backend runs in your own AWS account, so the infrastructure and its costs stay visible to you. Hosting costs are not included in the plan.

• How do you price backend work?

  At a fixed price. A backend for a new app is part of the app price, from $20,000 for a focused MVP with design, backend, admin panel and both store releases. A takeover starts with a one-week code audit from $1,000, followed by maintenance with SLA from $1,500/month or maintenance and new features from $4,050/month, both with a 3-month minimum. Integrations and new features are scoped and priced before we start.

• Do you use AI to build apps? Does that make them cheaper?

  Yes. Our developers work with AI coding agents such as Claude Code and Codex, AI drafts specs from our workshops and writes automated tests, and people review every change. Because we work at a fixed price, the time AI saves goes to you: a smaller senior team, a lower starting price (new apps from $20,000) and more of your product in each milestone. We don't sell hours, so there is nothing to discount.

• Is AI-written code safe and maintainable?

  Every change is reviewed by a senior developer before it is merged, covered by automated tests and built on the same architecture and conventions we use on every project. Your code and data are never used to train AI models. If you want a second opinion, our one-week code audit, from $1,000, reviews any codebase, ours included.

• Which technologies do you use?

  Mostly Node.js with NestJS, MongoDB and Redis, running on AWS with infrastructure written in Terraform and Docker, and Supabase when a managed backend fits the product. Monitoring runs on Sentry and New Relic.

  We also take over backends built on other stacks, such as PHP with Laravel. The one-week audit tells you whether to keep, refactor or rebuild.

• Do you build admin panels?

  Yes. Most products need one: to manage users, content, orders or inventory and to see what is happening in the product. We built a web admin for venues and inventory for Ontapp and a dashboard where brands manage inventory, analytics and partnerships for Bond.