Integration Engineer – Backend & API (Azure/C#)

Virgin Active Limited; Greater London; On-site; GBP 70,000 - 100,000; Full time

Benefits offered by this job

25 days annual leave

Private Medical Insurance

Virgin Active membership

Job summary

Virgin Active invites applications for Integration Engineers at mid and senior levels to join the Digital & Technology Transformation Team. You will design, build and support backend services, APIs and integrations powering our digital ecosystem across mobile apps and internal platforms using C#, .NET and Azure.

Role emphasizes reliable, secure, scalable solutions, collaboration with product, QA and frontend teams, and ownership of complex integrations.

Qualifications

• Experience building backend services, APIs and system integrations using C# and .NET.
• Hands-on experience with Microsoft Azure and its integration services.
• Strong understanding of RESTful APIs, event-driven architecture and asynchronous messaging.
• Experience integrating internal platforms with third-party systems.
• Knowledge of automated testing, CI/CD and modern software delivery practices.
• Strong problem-solving skills with the ability to troubleshoot distributed systems and integration failures.
• Collaborative approach and ability to communicate clearly with technical and non-technical colleagues.

Responsibilities

• Design, build and maintain backend services, APIs and integration solutions using C#, .NET and Microsoft Azure.
• Connect our mobile applications and digital products with internal platforms and third-party systems.
• Develop secure, scalable and maintainable solutions using API-led and event-driven integration patterns.
• Work with Product, QA and frontend engineers to deliver high-quality features from design through to release.
• Write clean, testable code and contribute to code reviews and engineering standards.
• Troubleshoot integration failures, production issues and performance problems.
• Improve automated testing, CI/CD, monitoring and system observability.
• Contribute to sprint planning, technical discussions and delivery estimates.
• Identify opportunities to simplify solutions, reduce technical debt and improve reliability.

Skills

C#

.NET

Azure

REST APIs

Event-driven

Asynchronous messaging

CI/CD

Troubleshooting

Distributed systems

Communication

Tools

Azure Service Bus

Logic Apps

Functions

Kafka

RabbitMQ

Job description

Virgin Active invites applications for Integration Engineers at mid and senior levels to join the Digital & Technology Transformation Team. You will design, build and support backend services, APIs and integrations powering our digital ecosystem across mobile apps and internal platforms using C#, .NET and Azure.

Role emphasizes reliable, secure, scalable solutions, collaboration with product, QA and frontend teams, and ownership of complex integrations.