Backend Development Services & APIs
Our backend development services build the engine behind your apps: secure APIs, databases, logins, integrations and cloud infrastructure in Node.js or Python on AWS.
The businesses we build, grow and automate for
Eight O Eight
Back-end problems that hold apps back
A weak back end shows up as slow apps, outages and security risks.
Slow responses
Unoptimised queries make every screen wait.
Security gaps
Weak logins and exposed endpoints put data at risk.
Hard to connect
Without a documented API, partners and apps can’t connect.
What our API development services include
Design, build, security and hosting.
API design
REST or GraphQL with OpenAPI documentation.
Databases
PostgreSQL, MongoDB or DynamoDB, designed for growth.
Authentication
JWT, OAuth, single sign-on and roles.
Integrations
Payments, CRMs, ERPs and third-party APIs.
Cloud
AWS Lambda, ECS or EC2 with automated deployments.
Monitoring
Logs, alerts and performance tracking.
Mobile app backend development
Mobile app backend development covers logins, data sync, push notifications, payments and an admin panel to manage users and content. Your app team gets documented APIs and a test environment to build against. For fintech apps we add audit trails, encryption and the checks payment providers expect.
- Logins and user management
- Push notifications
- Data sync and offline support
- Admin dashboards
Web API development services
Our web API development services build APIs for web apps, partners and integrations, with versioning, rate limits, documentation and automated tests, so other teams can build on them safely.
- Versioning and rate limits
- OpenAPI documentation
- Automated tests
- Partner and public APIs
Who builds your app
Every project is planned and reviewed by our technical co-founder, who has led fintech and AI app development, and built by senior developers who work in English during UK and European hours and part of the US day. You talk to the people building your app, with a shared board and a demo you can try every week or two.
- Technical co-founder on every project
- Native Android (Kotlin) and iOS (Swift)
- Flutter and React Native
- Shared board and regular demos
How we build back ends
Documented, tested and monitored from the start.
Design
Data model and API specification.
Build
Endpoints with tests.
Deploy
Cloud set-up with automated deployments.
Monitor
Logs, alerts and support.
Our engineering experience
Our co-founder has led development of apps we can’t name publicly. Book a call and we’ll walk you through the work.
Android app for payments, lending, investing and expense tracking, launched in 3 months under our co-founder's technical lead.
Android · India · 3 monthsA conversational generative-AI app, now in development under the same technical lead.
Conversational AI · In developmentcode and IP ownership, in your own repository
Ownershipof free bug fixes after launch
Support
Backend and API development cost
Fixed-price projects.
API / integration
One API or integration.
- API design
- Endpoints + tests
- Documentation
App back end
A full back end for an app.
- Logins + users
- Database
- Admin panel
- Push notifications
Platform
Scalable platform back end.
- Services that scale separately
- Customer separation
- Monitoring
- Auto-scaling
How much does API development cost? Our API development cost is $800–$2,000 for a single API or integration and $2,000–$10,000 for a full back end, fixed after a free call. See app development cost.
Frequently asked questions
What do your backend development services include?
Which stack do you use?
Can you build a back end for an existing app?
Let’s talk about your project
Book a free 30-minute call. We’ll look at what you have, tell you honestly what we’d do first, and send a fixed quote.
Or email hello@thryveapex.com · call +91 91002 80101