Backend & Cloud
API Development Services
We design and build reliable APIs for product workflows, integrations, and internal systems. From schema design to deployment, we focus on clarity, performance, and long-term maintainability. Delivery aligned to Germany teams (EUR).
Benefits
What you get
Well-defined API contracts and versioning strategy
Secure auth, roles, and permission boundaries
Database schema aligned to business workflows
Validation, error handling, and observability standards
Integration-ready endpoints and webhooks
Performance tuning for production workloads
Features
What we deliver
API Contract Design
Define resource models, endpoint conventions, and versioning plans that stay stable across product iterations.
Auth and Access Control
Implement JWT/session strategies, role permissions, and policy controls for secure API usage.
Data Modeling and Persistence
Design relational and document data structures that support reporting, scale, and product flexibility.
Validation and Error Standards
Apply request validation, error taxonomy, and retry-safe patterns for predictable consumer behavior.
Webhooks and External Integrations
Build signed webhook consumers/producers and integration layers for third-party systems.
Monitoring and Reliability
Add logging, tracing, and performance instrumentation to reduce incidents and speed up debugging.
Process
How we work
API Discovery
Clarify data entities, endpoint scope, auth model, and integration needs.
Contract and Schema Design
Define API specs, validation rules, and persistence model.
Implementation and Testing
Build endpoints, integrations, and automated tests across key flows.
Deployment and Monitoring
Release with observability, docs, and handoff for ongoing operations.
Tech Stack
Technologies we use
Core
Tools
Services
Use Cases
Who this is for
Product Backend APIs
Build core APIs powering mobile/web products with clear contracts and dependable performance.
Third-Party Integration Layer
Create unified API gateways for payments, CRM, ERP, and workflow automation systems.
Legacy API Modernisation
Refactor unstable APIs into maintainable modules with versioning and safer deployments.
Internal Platform APIs
Power internal tools and dashboards with secure, role-based endpoint architecture.
FAQ
Frequently asked questions
Yes. We design and implement REST or GraphQL based on product and team requirements.
Yes. We implement authentication, authorization, and policy controls to match your access model.
Yes. We provide practical API documentation and endpoint conventions for internal and external consumers.
Yes. We support payments, CRM, communications, and custom external API integrations.
We optimize query paths, caching, and asynchronous workloads for consistent production performance.
Yes. We can extend, refactor, or stabilize existing backend services with phased rollout plans.
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Regional
Delivery considerations for your region
Compliance & Data (EU)
For Germany/EU delivery, we keep GDPR-first patterns: data minimisation, purpose-limited storage, and explicit access boundaries.
We can work under a DPA (template available on request) and implement pragmatic retention/deletion flows when needed.
- GDPR-first architecture patterns (generic, no legal claims)
- DPA template available on request
- Retention/deletion and export flows where required
- Least-privilege access and safe logging defaults
- Documented data flows and access boundaries
Timezone & Collaboration (EU)
We align to EU working hours with CET-friendly collaboration windows and async progress updates.
We keep delivery predictable: weekly milestones, documented decisions, and clear scope control.
- EU overlap with CET-friendly windows
- Async-first delivery with written decisions
- Weekly milestone demos and progress checkpoints
- Clear change control to avoid surprises
- Escalation path for blockers and risks
Engagement & Procurement (EU)
We support procurement-friendly engagements with clear scopes, milestone plans, and documentation that stakeholders can review.
For EU teams, we can structure invoices and milestones for EUR-based engagements where appropriate.
- EUR-based engagements and invoicing options
- Discovery-first option to reduce delivery risk
- Milestone-based billing and scope sign-offs
- Vendor onboarding documentation on request
- Transparent change control and approvals
Security & Quality (EU)
We prioritise reliability: reviewable PRs, predictable releases, and tests that protect critical paths.
Performance budgets and clear release discipline keep the product stable as it grows.
- CI-friendly testing: unit + integration + smoke tests
- Performance budgets + bundle checks
- Release checklist + rollback-safe deployments
- Security checklist for auth and sensitive data flows
- Observability hooks (logs + error tracking) ready for production
Want help with API development?
Share your requirements for Germany delivery. EUR-based engagements.
Reply within 2 hours. No-pressure consultation.