Integration Developer

Integration Developer

Location: London - 4 days in the office, 1 day from home

Salary: £50,000 - £65,000

The Opportunity

We're working with an established consumer-facing organisation that's investing significantly in the modernisation of its technology landscape.

With a new eCommerce platform, a new third-party logistics partner and an ERP upgrade all being delivered concurrently, the business is now building an internal integration capability to take long-term ownership of how its critical systems connect.

This is not a role where you will simply maintain what already exists.

You will help build the integration layer that keeps orders moving, stock accurate and deliveries going out on time.

The Role

Working within a small and highly capable integration team, you will build, test, deploy and maintain integrations across the company's:

eCommerce and order management platforms

Warehouse management and 3PL systems

ERP platform

Downstream business applications

You will work closely with a newly appointed Technical Lead, alongside QA and Delivery Planning, with genuine ownership of the integrations you develop.

Key Responsibilities

Build and maintain APIs, data flows and middleware integrations

Develop and own solutions using Azure Integration Services

Support the new warehouse go-live and integration hypercare

Monitor live integrations, investigate incidents and resolve failures

Build the eCommerce and OMS integration layer

Develop ERP integration components from established technical designs

Test, deploy and monitor integration pipelines

Produce clear runbooks, data flow diagrams and error-handling documentation

Work closely with internal teams and external delivery partners

Participate in an on-call rota during peak trading periods

About You

You will have:

Commercial experience building integrations in a production environment

Hands-on experience with Azure Integration Services, Logic Apps, Service Bus or a comparable integration platform

Strong experience working with REST APIs, JSON and XML

Knowledge of OAuth 2.0, API keys and common authentication patterns

Experience building event-driven flows or middleware pipelines

A strong debugging mindset and t...