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Sr. React Full Stack Engineer
Job in
Greater London, London, Greater London, W1B, England, UK
Listed on 2026-02-28
Listing for:
Cognizant
Full Time
position Listed on 2026-02-28
Job specializations:
-
Software Development
Software Engineer, React.js
Job Description & How to Apply Below
Front-End / BFF Engineer (Junior)
(React, BFF, API Orchestration)
Core Technical Responsibilities- Front End Development
- Develop React-based user interfaces with guidance, using:
- Modern React patterns and tooling (e.g.,
Type Script ) - React routing for deep linking and navigation
- Modern React patterns and tooling (e.g.,
- Implement UIs using Microsoft Fluent UI to align with the broader Microsoft ecosystem (i.e.,
Dynamics 365 / Model Driven Power Apps
) - Support building React applications so they can be:
- Surfaced via deep links
- Embedded or integrated into Model-Driven Power Apps
- Assist in designing and implementing a BFF layer using C#/.NET technologies under senior guidance:
- Consumes backend RESTful APIs
- Aggregates, adapts, or reshapes data for frontend needs
- Where appropriate, support exposing GraphQL from the BFF to:
- Simplify frontend data access
- Reduce over- and under-fetching
- Learn to make pragmatic decisions on when REST vs GraphQL is most appropriate,
- Design and consume APIs with a developing understanding of:
- RESTful conventions
- Graph
QL schema design - JSON and JSON schema validation
- Work closely with the backend engineers to support end-to-end delivery
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