Senior .NET Back-End Engineer — High-Throughput Cloud APIs

8x8; Philippines; On-site; PHP 5,538,000 - 7,385,000; Full time

Job summary

8x8 is seeking a Senior Software Engineer to design and develop RESTful APIs and backend microservices for our high‑throughput messaging platform. You will optimize performance, write unit and integration tests, and collaborate closely with product teams to meet requirements and deadlines.

The ideal candidate has 6+ years in software development, expert C#/.NET Core skills, and strong cloud, messaging (RabbitMQ/Kafka), and database experience. English fluency is required.

Qualifications

• 6+ years of professional software development experience.
• Expert knowledge of .NET Core and C#.
• Strong understanding of RESTful web services and microservices architecture.
• Proficiency in multi-threaded application development and async programming.
• Experience with queue engines like RabbitMQ or Kafka.
• Working experience with SQL and NoSQL databases.
• Experience with software engineering best practices (unit testing, integration testing, CI/CD).
• Hands-on experience utilizing cloud platforms to develop scalable and reliable applications.
• Written and verbal fluency in English is required.

Responsibilities

• Design and develop new RESTful APIs and backend microservices to expand the platform.
• Optimize platform performance and ensure high quality with unit tests and integration tests.
• Collaborate with the product team on requirements and delivery schedules.

Skills

RESTful APIs

Backend development

Multi-threaded programming

Async programming

Cloud platforms

Team collaboration

Tools

RabbitMQ

Kafka

SQL

NoSQL

CI/CD

Cloud platforms

Kubernetes

Job description

8x8 is seeking a Senior Software Engineer to design and develop RESTful APIs and backend microservices for our high‑throughput messaging platform. You will optimize performance, write unit and integration tests, and collaborate closely with product teams to meet requirements and deadlines.

The ideal candidate has 6+ years in software development, expert C#/.NET Core skills, and strong cloud, messaging (RabbitMQ/Kafka), and database experience. English fluency is required.