Service 04 — Platform and Backend Engineering
Backends that keep chain products fast.
APIs, services, event backbones and data layers that keep blockchain products fast, consistent and operable at real load.
- Practice
- Services, events, data
- Standards
- TypeScript, NestJS, Kafka, AWS
- Typical scope
- 8–24 weeks, continuous
Overview
The product never waits on a block.
Blockchains are slow, eventually-consistent dependencies. We isolate them behind services with retries, reorg handling and reconciliation — so users experience a fast product while the chain settles underneath.
Domain-driven service design, event-driven backends, API platforms and ledger-synchronization services: the unglamorous machinery that decides whether a blockchain product survives contact with real users.
Capabilities
What this service covers.
- Domain-driven service design — bounded contexts with named ownership.
- Event-driven backends — Kafka backbones with idempotent consumers.
- API platforms — REST and gRPC interfaces with versioned contracts.
- Data pipelines — indexing, normalization and reconciliation services.
- Admin and operations tooling — consoles your team actually uses.
Engineering considerations
Correctness under reorgs and retries.
Every consumer is idempotent, every flow replayable. Fault-injection tests prove reorg handling before production does — because production will test it eventually.
Chain state mirrored into queryable services with lag budgets.
Queues absorb campaign spikes without losing a single event.
Tracing, metrics and balance watchers ship with every service.
Technology
Delivery approach
How the work proceeds.
Service architecture
Domains, events, APIs and data ownership mapped.
Backbone and services
Event infrastructure, core services and ledger sync.
APIs and tooling
Product APIs, admin consoles and integration contracts.
Operability and handover
Observability, load validation and operations handover.
Relevant case study
One platform, many tenants.
CASE STUDY — PLATFORMMulti-tenant Wallet and Rewards Platform
Tenant onboarding reduced to configuration; campaign launches without downtime.
Read the case study →FAQ
TypeScript, Node.js and NestJS services, React frontends and Kafka event backbones on AWS — with infrastructure as code throughout.
Yes — recovery and hardening of existing platforms is a core engagement, starting with an assessment and prioritized remediation.
Chains sit behind services with explicit finality policies, retries and reconciliation. The product reads from fast, consistent services — never directly from the chain.
Related services
CTA
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Bring us the load profile, the integrations and the pain points. We will design the backend your product deserves.