Systems / integration
API & Systems Integration
Connect the systems that matter through explicit API contracts, reliable transformations, recoverable workflows, and operational visibility.
traceable system flow
What this service solves
The integration is the path between two owners
A useful integration story starts at the source and follows the data through the API, transformation or business logic, destination, and operational trail. Authentication, retries, idempotency, rate limits, partial failure, and ownership are not edge decorations; they are what make a connected workflow dependable when the other system changes.
- REST, GraphQL, webhooks, and provider APIs
- Data transformation and business rules
- Authentication, retries, idempotency, and observability
Problems this service addresses
When systems are connected but not integrated
Integration work is often a reliability and ownership problem disguised as a request for one more endpoint.
01
The data shape changes between systems
Names, identifiers, states, currencies, timestamps, and optional fields need an explicit translation layer instead of being passed through until something breaks.
02
A webhook can arrive twice or not at all
The integration needs idempotency, replay or retry decisions, and a record of what the system believes happened.
03
Authentication is everybody's assumption
Tokens, scopes, rotation, tenant boundaries, secrets, and provider permissions need an owner and a testable contract.
04
Failure disappears between teams
When a provider, queue, or destination fails, someone needs to know what stopped, what can be retried, and which system owns the next action.
Engineering capabilities
Integration work with a recovery path
The implementation follows the flow from source to destination and makes the ownership boundary reviewable.
Flow and contract mapping
Name systems, events, records, authentication, ownership, and the state transitions that matter.
Transformation and business logic
Translate between contracts without hiding business rules in a fragile serializer or one-off script.
Auth, retries, and idempotency
Design secure credentials, safe repetition, partial failure, rate limits, and replay behavior around the provider.
Logs and operational handoff
Leave enough signal for support and engineering to understand what happened without reading every line of integration code.
Engineering approach
Trace source → API → transform → destination → observe
The path is the product. Each arrow should have a contract, an owner, and a useful answer for the moment it cannot continue.
Source
Identify the event, record, or system that starts the workflow and what makes it unique.
Contract
Define authentication, request shape, response shape, limits, and provider assumptions.
Transform
Keep data translation and business decisions visible, tested, and owned by the right system.
Recover
Record failures, retry safely, and give operators a path to inspect or replay when appropriate.
Relevant technologies and platforms
The integration surfaces that matter
Tools are named in relation to the system boundary and workflow, not as an unbounded integration inventory.
REST
Resource and workflow-oriented APIs
GraphQL
Client-shaped data access where useful
Webhooks
Event delivery from external systems
TypeScript
Transformation and contract logic
Node.js
Workflow and service orchestration
OAuth / tokens
Provider authentication and scope
Logs / Monitoring
Failure visibility and ownership
Selected relevant work
Integration proof in product context
The proof here is about connected surfaces and explicit system behavior, not a claim that every provider relationship is identical.
Related engagements
One workflow with an explicit integration contract
The API & Automation Sprint is a focused starting point for mapping a flow, implementing the API or webhook boundary, and leaving useful failure notes. Broader system work can follow when the first path proves where the next boundary belongs.
- API & Automation Sprint
- Flow mapping and contract implementation
- Retries, failure visibility, and handoff
Defined engagement
API & Automation Sprint
Connect a workflow, remove manual handoffs, and make failures visible.
Starting from $1,500
1–3 weeks
Delivery and process
From source event to an observable handoff
01
Inventory
List systems, owners, events, records, credentials, and the workflow's business consequence.
02
Contract
Agree request, response, authentication, limits, and state assumptions.
03
Transform
Implement the business mapping and keep it testable with representative fixtures.
04
Recover
Exercise duplicate, delayed, partial, and failed delivery paths.
05
Observe
Document logs, alerts, replay or manual follow-up, and the next owner.
Service FAQ
API and systems integration questions
Can you work with a vendor API you did not build?
Yes. The first step is to understand its authentication, limits, data model, events, failure behavior, and change ownership.
Do you support webhooks?
Yes. Webhooks are treated as event inputs that need validation, idempotency, retries, observability, and a clear downstream owner.
How do you avoid duplicate records?
Use stable identifiers, idempotency keys or equivalent business rules, and a stored processing decision where the workflow requires it.
Can an integration be built without a large platform rewrite?
Often. A bounded adapter or workflow boundary can reduce risk while leaving the larger system in place.