Senior Backend Developer

CXC; Mandaluyong; On-site; PHP 1,400,000 - 2,200,000; Full time

Job summary

CXC in Manila is seeking a Senior Backend Engineer to design and build reliable, scalable backend systems using C# and .NET. You will shape microservices architecture and maintain high engineering standards.

You will design backend services, implement asynchronous processing, and contribute to CI/CD pipelines, while ensuring code quality through reviews and tests. Strong OOP skills and modern .NET practices are required.

Qualifications

• Proficient in C# with async/await and CancellationToken.
• Hands-on experience with HttpClient and best practices.
• Extensive experience with WebAPI and MVC.
• Solid understanding of CLR and Garbage Collection.
• Knowledge of IDisposable best practices.
• Experience with boxing/unboxing concepts.
• Strong OOP skills and design pattern experience.
• Proven ability to design microservices architectures.

Responsibilities

• Design and develop backend services using C# and .NET.
• Build scalable microservices with asynchronous processing and compensation mechanisms.
• Ensure high code quality through reviews, unit testing, and debt management.
• Optimize performance, reliability, and maintainability of backend systems.
• Collaborate with cross-functional teams on system design and API contracts.
• Contribute to CI/CD pipelines and deployment automation.

Skills

C#

ASP.NET

WebAPI

Microservices

Asynchronous programming

Unit testing

CI/CD

Object-oriented programming

Tools

HttpClient

Jenkins

CLR

Job description

We are seeking a Senior Backend Engineer with strong .NET expertise to design and build reliable, scalable backend systems. You will play a key role in microservices design, system architecture, and maintaining high engineering standards.

Key Responsibilities

• Design and develop backend services using C# and .NET
• Build scalable microservices with asynchronous processing and compensation mechanisms
• Ensure high code quality through reviews, unit testing, and technical debt management
• Optimize performance, reliability, and maintainability of backend systems
• Collaborate with cross-functional teams on system design and API contracts
• Contribute to CI/CD pipelines and deployment automation

Technical Requirements

Programming & Frameworks

• Strong proficiency in C#, including async/await and CancellationToken
• Hands‑on experience with HttpClient and best practices
• Extensive experience with WebAPI and MVC
• Solid understanding of CLR and Garbage Collection
• Best practices for using IDisposable
• Good knowledge of boxing and unboxing
• Strong Object‑Oriented Programming skills
• Hands‑on experience applying design patterns
• Proven ability to design microservices architectures

Code Quality

• Strong adherence to DRY principles
• Experience performing and participating in code reviews
• Hands‑on experience with unit testing (UT)
• Strong sense of ownership in identifying and resolving technical debt

CI/CD

• Experience with Jenkins pipelines
• Ability to write or maintain pipeline scripts (nice to have)

Nice to Have

• Experience with distributed systems or high‑traffic platforms