ShelCron

Web & Apps

Backend Development

APIs, domain services, and data layers built for correctness and operability.

Backend development for product and platform teams: domain services, API layers, jobs, and data persistence with clear boundaries. We emphasize correctness, idempotency where it matters, and operational hooks so failures are diagnosable rather than mysterious.

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Who it’s for

  • Product teams needing durable API and domain logic
  • Platform groups extracting services from monoliths
  • Startups hardening backend foundations before scale pressure

Problems we address

  • Business logic entangled with UI or one-off scripts
  • APIs without clear contracts, auth, or error semantics
  • Background jobs and data migrations that are hard to operate

Expected outcomes

  • Service and module boundaries that match the domain
  • Versionable API contracts with auth and validation
  • Observable jobs, migrations, and failure handling

Capabilities

Concrete engineering capabilities included in a typical engagement for this service.

API and domain service implementation

Postgres schema design and migrations

AuthN/AuthZ integration on the server

Queue/worker patterns for async work

Caching and rate-limiting where appropriate

Technology

Representative technologies used for this service. Final stack depends on your estate.

  • Node.js
  • TypeScript
  • Postgres
  • Prisma
  • Redis
  • Docker

Architecture

Web application flow

Browser traffic through CDN and API into application and data layers.

BrowserCDNAPIApplicationDatabaseWorkers

Deliverables

  • Backend services or modules in your repositories
  • OpenAPI or equivalent contract documentation
  • Migration and rollback notes
  • Runbook snippets for common operational tasks

Out of scope

  • Unmanaged production on-call without a retainer

Timeline

Typical timeline

3–10 weeks

Timeline depends on scope, access, and dependencies—not a delivery guarantee.

Process

A clear delivery path from discovery through handover and optional support.

  1. 01

    Discovery

    Goals, constraints, success criteria, and current-state review.

  2. 02

    Architecture

    Target design, interfaces, risks, and delivery sequence.

  3. 03

    Implementation

    Incremental build with visible progress and documented decisions.

  4. 04

    Testing

    Functional checks, failure paths, and acceptance criteria validation.

  5. 05

    Deployment

    Controlled release to staging and production with rollback paths.

  6. 06

    Handover

    Runbooks, access notes, and operator/admin walkthrough.

  7. 07

    Support

    Optional hypercare window or retainer continuity after go-live.

Custom engagement

Pricing depends on architecture, traffic profile, and integration depth. Share your requirements for a scoped quote.

FAQ

Node and TypeScript are our default for web backends. Other runtimes can be used when your stack already depends on them.

Yes—carefully. We prefer incremental extraction with clear data ownership over premature microservice sprawl.

Ready to build?

Tell us about your environment, constraints, and target outcomes. We’ll recommend a package or a scoped quote.