Senior Software Engineer - C# / .Net Core [T500-20224]

About Costco Wholesale

Costco Wholesale is a multi-billion-dollar global retailer with warehouse club operations in fourteen countries. They provide a wide selection of quality merchandise, plus the convenience of specialty departments and exclusive member services, all designed to make shopping a pleasurable treasure hunt experience for their members.

About Costco Wholesale India

At Costco Wholesale India, we foster a collaborative space, working to support Costco Wholesale in developing innovative solutions that improve members’ experiences and make employees’ jobs easier. Our employees play a key role in driving and delivering innovation to establish IT as a core competitive advantage for Costco Wholesale.

Position Title : Sr. Software Engineer

Role Summary :

The Costco GDX Order Management Platform team is looking for a talented individual to design, develop, and maintain the critical services that power Costco’s multi-billion dollar eCommerce business.

This role will be a technical leader in a fast-paced, dynamic environment, focusing heavily on back-end microservices development with an opportunity to make a tangible impact on millions of members globally within a rapidly expanding eCommerce landscape.

This role will have direct responsibility for :

Delivering innovative capabilities that enhance the member experience across various digital touchpoints.

Building microservice components from the ground up.

Ensuring the longevity, scalability and quality of our systems through continuous improvement, comprehensive documentation, meticulous profiling, and significant performance enhancements.

Mentoring a team of engineers, fostering a culture of continuous learning and improvement.

Job Description :

Roles & Responsibilities :

Accountable for Order Management Platform’s overall architecture, strategically applying principles that promote availability, reusability, interoperability, and security within the design framework.

Establishes and maintains engineering best practices to deliver higher quality, scalable solutions.

Mentors and develops software engineers by providing guidance, coaching, and fostering a culture of continuous learning.

Establishes and maintains coding standards, architectural patterns, and development processes.

Works cross-functionally to pilot innovative technologies and capabilities that enhance overall member experience and drive business operational efficiencies.

Performs development, optimization, and automation activities to support the implementation of the Order Management platform.

Uses test-driven development practices to assist with the detection of software defects early in the development process.

Accountable for defining specifications and documentation across all phases of the product development cycle, from design to implementation.

Works with the product team on defining the product strategy and roadmap.

Estimates, plans, and manages all implementation tasks and reports on progress.

Regular and reliable workplace attendance at your assigned location.

Experience Required :

Minimum Qualifications :

12+ years of experience

10+ years of experience with C#, TypeScript, REST, JSON, XML, YAML, Microservices, Rest API and OpenAPI.

10+ years of hands-on experience in architecting, designing and developing containerized (Dockers / Kubernetes) services based on the .Net Core framework.

10+ years of experience developing and writing unit tests using NUnit or similar framework.

5+ years of experience leading development with engineers in multiple geographical locations and time zones

5+ years of experience working on building scalable cloud native architecture

5+ years of experience with CI / CD tools : GitHub, Jenkins.

10+ years of experience with API development, with an emphasis on security and performance.

5+ experience with microservice-based debugging and performance testing software.

10+ years of experience developing within an agile methodology.

Solid knowledge of database application development in relational and no-SQL platforms.

Strong verbal and written communication skills and be able to communicate to both technical and Business audiences.

Possesses strong leadership and interpersonal communication skills, effectively conveying product vision and influencing a wide range of stakeholders across the organization.

Ability to work under pressure in crisis with a strong sense of urgency.

Responsible, conscientious, organized, self-motivated and able to work with limited supervision.

Detail-oriented and possess strong problem-solving skills and ability to analyze potential future issues.

Able to support off-hours work as required, including weekends, holidays, and 24 / 7 on call responsibilities on a rotational basis.

Bachelor's degree in computer science, Engineering, or a related field.

Preferred Qualifications :

Experience in a retail eCommerce environment and GraphQL.

Experience with data modeling and object-oriented design.

Knowledge of SOX, PII, PCI, CCPA, and HIPAA regulations.

Experience deploying and configuring Google Cloud Platform resources (GKE, Pub / Sub, Spanner, BigQuery).

Experience with Redis or similar technologies.

Must Have Skills : C# OR .NET Core

CI / CD OR Jenkins OR GitHub Actions

Cloud : AWS OR GCP OR Azure

NUnit in Unit Testing is required.

Dockers OR Kubernetes

SQL Server OR Spanner OR PostgreSQL

Nice to Have Skills :

Experience working in a retail ecommerce environment.

Terraform OR Ansible

TypeScript OR Angular OR React