Product & Platform Engineering

API & Integration Architecture

Governed APIs and resilient integrations that keep enterprise data consistent across systems.

Book a free discovery sessionSee our work
Projects delivered
80+
Countries served
16
Global offices
4
Founded
2021

The challenge

Where teams get stuck

The problems we're most often brought in to solve.

  1. 01

    Data is re-keyed between systems

    Staff copy information between tools, causing delays, transcription errors and figures that disagree across departments.

  2. 02

    Integrations fail without warning

    Point-to-point scripts break silently, and missing records surface only when a customer or manager raises them.

  3. 03

    Partners cannot integrate efficiently

    Without a documented, secured API, every partner or mobile integration becomes a bespoke, one-off project.

Overview

API & Integration Architecture at VulcanTech

API development and integration is the design of interfaces and data flows that let separate business systems exchange information reliably. VulcanTech connects CRM, ERP, finance, HR, payment and identity systems so data is captured once and stays consistent. Every API is versioned, documented and secured, and every integration includes retries, logging and alerting, so failures are visible and recoverable rather than discovered weeks later in a report.

Key deliverables

  • API specification in OpenAPI format
  • Implemented and tested API endpoints
  • Integration services with retry and logging
  • Observability dashboards and alerts
  • Developer documentation

What you get

What API & Integration Architecture includes

  • API design and governance

    REST or GraphQL APIs with OpenAPI specifications, consistent conventions and versioning from the first release.

  • Third-party integration

    Connections to CRM, ERP, accounting, payment, messaging and identity platforms through official APIs and webhooks.

  • Authentication and security

    OAuth 2.0, API keys, rate limiting and input validation applied consistently across every endpoint.

  • Resilient data synchronisation

    Queues, retries and idempotent processing, so temporary outages do not create missing or duplicate records.

  • Integration observability

    Logging, dashboards and alerts on failed calls, so issues are detected and resolved early.

  • Developer portal

    Interactive documentation and sandbox credentials that make partner onboarding straightforward.

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Our process

How we deliver

A delivery process you can see into — from first workshop to production support.

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  1. 01

    Discovery

    A focused working session on your objectives, constraints and existing systems. It concludes with a scoped proposal and a clear view of value, risk and effort.

  2. 02

    Architecture & planning

    We agree the target architecture, data model and integration approach before product code is written, and secure your sign-off.

  3. 03

    Iterative delivery

    Working software reaches a staging environment on a regular cadence, giving stakeholders continuous visibility and the ability to steer priorities.

  4. 04

    Assurance & hardening

    Automated testing, accessibility and performance budgets, and a security review are completed before anything reaches production.

  5. 05

    Launch & continuity

    We manage cutover and remain engaged through an agreed support period, with a structured handover to your teams or ongoing operation by ours.

Engagement models

Work with us the way that suits you

Explore engagement models →

  • Outcome-based delivery

    A defined scope, timeline and commercial model agreed after discovery. We own delivery risk against the agreed outcomes.

    Best for: Well-defined initiatives, MVPs and first releases

  • Dedicated product teams

    A cross-functional pod — engineering, design, QA and delivery leadership — aligned to your roadmap and scaled as priorities change.

    Best for: Long-term product development and evolving roadmaps

  • Team extension

    Senior engineers embed in your organisation, work inside your processes and report to your leaders — on contracts that assign all IP to you.

    Best for: Adding specialist capability without growing headcount

Tools & technologies

The stack we build with

  • Node.js
  • Python
  • FastAPI
  • GraphQL
  • OpenAPI
  • RabbitMQ
  • Postman
  • AWS API Gateway

Why VulcanTech

A partner, not a vendor

Senior engineering, honest delivery, and work we can name.

  • Senior engineers own delivery

    The engineers who scope your programme in discovery are the engineers who deliver it. There is no hand-off to a junior bench after contract signature.

  • Engagement models that fit

    Outcome-based delivery, dedicated product teams, team extension or global capability centres, matched to how your organisation prefers to work.

  • A verifiable track record

    Every customer story we publish describes real production work, naming the client wherever confidentiality allows, including public-sector platforms secured through competitive tenders.

  • 80+ projects in 16 countries

    Delivered since 2021 across the public sector, real estate, healthcare, manufacturing and consumer technology, for regulated and high-growth organisations alike.

Customer stories

Proven delivery

All customer stories →

FAQ

Frequently asked questions

Can't find what you need? Ask us in the discovery session.

REST suits most integrations, partner APIs and systems that benefit from simple caching and broad tooling support. GraphQL is useful when several front ends need flexible access to related data and over-fetching is a concern. We recommend based on who will consume the API and how, and sometimes provide both for different audiences.

Free discovery session

Start your API & Integration Architecture project

Tell us what you're building. You'll hear back from an engineer, not an inbox.

  1. 1We reply within one business day to set up a 30-minute call.
  2. 2A senior engineer — not a salesperson — walks through your problem.
  3. 3You get a scoped proposal with timeline and cost. No obligation.

New projects & sales

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Existing clients & support

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