iOS App Developer - Data Visualisation Contract

Contract iOS App Developer - Data VisualisationLondon - Hybrid Up to £480 per day (Inside IR35)6-9 month project

Harnham are working with a leading organisation who are expanding their staff-facing mobile app, used by thousands of employees every day. The app is already live, and the next phase is to bolt on new functionality around data visualisation, compliance, recognition, and performance metrics - giving staff and managers real visibility into performance while celebrating success through engaging dashboards.

This is a contract opportunity to play a key role in shaping how data is presented and consumed within the app.

As a Contract iOS App Developer, you will:

• Integrate new data visualisation features into an existing app using SwiftUI.

• Work closely with UX designers, data engineers, and product managers to deliver a seamless experience.

• Shape and prepare the data in the first phase (SQL, ETL pipelines from Teradata to AWS).

• Deliver visually appealing and intuitive dashboards that make performance data clear and engaging.

• Collaborate with a wider team - this is not a solo build, but a project with multiple stakeholders.

• iOS App Development (SwiftUI essential)

• Strong SQL and data manipulation skills

• Exposure to data visualisation within apps (charts, dashboards, etc.)

• Knowledge of ETL processes (Teradata into AWS preferred)

• Understanding of UX/UI principles

• Excellent communication & stakeholder management