Senior Software Developer – .NET & React

About the role

Chosen Online is seeking a Senior Software Developer to own and evolve its integration platform. You will work on both the .NET 8 backend and the front‑end built with Typescript and React, delivering high‑performance, low‑code solutions for global customers.

Key responsibilities

• Design and maintain core platform subsystems built on .NET 8, including GitHub integration and stream‑based messaging handling millions of rows.
• Develop connectors that leverage streams/iterators for data ingestion and egress, and bake .NET assemblies from YAML workflow definitions.
• Integrate Azure services such as Key Vault, Storage, and App Gateway, and implement OpenID Connect for Microsoft, Google, and other providers.
• Create and maintain YAML deployment pipelines in Azure DevOps and support an SVG‑based visual designer.
• Manage infrastructure as code using Terraform, ensuring reliable provisioning across public Azure clouds and on‑premise environments.

Required profile

• Bachelor’s degree in Computer Science or equivalent experience.
• At least 10 years of professional development experience in C# or JavaScript.
• Strong knowledge of SQL or other relational databases.

Required skills

• C# and .NET 8
• Typescript and React
• Azure services (Key Vault, Storage, App Gateway)
• GitHub, Azure DevOps, Terraform
• YAML, OpenID Connect

What we offer

• Provident Fund
• Discovery Medical Aid
• Gym membership
• Subsidised home fibre
• Company laptop