Software Engineering

API Development & Integration

We help companies connect products and systems so information moves where it is needed. Our engineers design clear APIs, handle failure paths and make integrations easier to maintain as platforms change.

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Conceptual engineering illustration for API Development & Integration

Tranz / Engineering in practice

What we can help with

Software that supports the operation behind the product

Business software needs to keep working through changing requirements, imperfect data and integration failures. We define the system boundaries, data ownership and release path so your team can understand what is being built and how it will be operated.

API contract design

Define resources, validation, authentication and versioning so consumers understand how to use the service.

What you receive

API specification, schemas and example requests.

System connectors

Map records between platforms and handle duplicates, retries and partial failures in the exchange.

What you receive

Integration adapters, data mappings and recovery rules.

Integration validation

Test normal transactions and failure scenarios, with useful logs for tracing problems across systems.

What you receive

Contract tests, operational logs and support documentation.

Where it helps

Start with a real task, then shape the solution

These are examples of workflows we can scope with your team.

Workflow platforms

Replace disconnected spreadsheets and repeated handoffs with shared records, explicit ownership and traceable actions.

System integration

Connect products and business platforms through documented APIs and dependable data exchange.

Platform renewal

Improve an existing application in stages while protecting the workflows people depend on today.

A concrete scope

Know what the engagement will produce

We agree on the deliverables for your project before delivery begins.

A defined scope

Prioritised workflows, dependencies, responsibilities and acceptance criteria for the agreed release.

Reviewable work

API specification, schemas and example requests; Integration adapters, data mappings and recovery rules; Contract tests, operational logs and support documentation.

A practical handover

The documentation, configuration, operating guidance and team walkthroughs included in your delivery plan.

Frameworks & tools

A toolkit shaped around your requirements

These are technology options for the engagement. We choose the stack around your existing systems, deployment needs and team; each project uses a relevant subset.

Services

Node.js

NestJS

Python

FastAPI

Java

Spring Boot

Contracts and validation

Swagger

Postman

JUnit

pytest

Data exchange

PostgreSQL

Redis

RabbitMQ

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How we work

Move from a clear brief to a useful release

Assess the system

Map users, business rules, existing code, integrations and the constraints that affect delivery.

Define the architecture

Agree on system boundaries, data models, contracts and a prioritised release plan.

Deliver in increments

Build and test complete workflows, review changes and document important engineering decisions.

Prepare operations

Confirm release checks, monitoring, recovery procedures and ownership for the delivered system.

Relevant projects

Explore the workflows behind our work

These portfolio examples provide context for the products and business processes we work on.

TranzIndia Direct Selling Software

A connected commerce and distributor operations platform.

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Pills Pharmacy Platform (Pills ERP)

One connected UK pharmacy product spanning stock, delivery, prescribing, coding and more.

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A2A Holidays CRM

A tailored lead and follow-up workspace for A2A Holidays travel enquiries.

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Before we begin

Questions about the engagement

Can you work with our existing application?

We review the codebase, dependencies, deployment process and critical workflows first. That assessment helps us propose changes that fit the system and its constraints.

Do we need to rebuild everything?

A rebuild is one option. We also consider targeted repairs, replacement of individual modules and gradual migration, based on risk and the value each change creates.

What happens after the first release?

We agree on handover, operational responsibilities and any continuing support during scoping. The release includes the documentation and deployment material specified for the engagement.

Discuss api development & integration

Tell us what needs to work better.

Share your current workflow, existing systems and the result you want. We’ll help define a practical next step.

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