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Software Engineer - Digital Site Development

Costco Wholesale CorporationIssaquah, WA🇺🇸United StatesPosted 16 Aug 2026

Quick Overview

Salary
$85k - $110k/yr
Work Type
Hybrid
Level
Mid Senior

Job Description

Costco IT is responsible for the technical future of Costco Wholesale, the third largest retailer in the world with wholesale operations in fourteen countries. Despite our size and explosive international expansion, we continue to provide a family, employee centric atmosphere in which our employees thrive and succeed.

This is an environment unlike anything in the high-tech world and the secret of Costco's success is its culture. The value Costco puts on its employees is well documented in articles from a variety of publishers including Bloomberg and Forbes. Our employees and our members come FIRST. Costco is well known for its generosity and community service and has won many awards for its philanthropy. The company joins with its employees to take an active role in volunteering by sponsoring many opportunities to help others.

Come join the Costco Wholesale IT family. Costco IT is a dynamic, fast-paced environment, working through exciting transformation efforts. We are building the next generation retail environment where you will be surrounded by dedicated and highly professional employees.

Software Engineers perform development work across the technology stack (both front-end/back-end expertise). They are versatile in how they can add value, demonstrating the ability to manage the completion of projects that involve databases, backend services, or the development of front-end applications. They should be able to demonstrate a strong understanding of emerging technologies to support the development of new solutions. Software Engineers understand the full technology stack and underlying applications, services, and databases in order to ensure optimal performance.

The Global Digital eXperience Website Development Software Engineer is responsible for the overall design and architecture of a product and the definition of the technical blueprints to fulfill specific requirements. They provide technical expertise to Product Managers and the Development Pods as they reconcile the user's needs and requirements with what the engineers have determined to be doable within the given (engineering) constraints. They work closely with Solution Architects, Product Managers, POD teams, and Product Owners to support the implementation and delivery of new and/or enhanced capabilities. Lastly, they are responsible for defining non-functional requirements (e.g., performance, resilience, etc.) to ensure the scalability and reliability of a given product within a complex ecosystem.

If you want to be a part of one of the worldwide BEST companies "to work for", simply apply and let your career be reimagined.

ROLE
  • Develops the conceptual systems architecture design and the supporting technologies needed to enable new and/or enhanced functionality within a given product/application, applying principles that promote availability, reusability, interoperability, and security into the design framework.
  • Supports the Product Owner with the identification and definition of enablers/work items to support the architectural runway of a given product/application.
  • Defines the non-functional requirements (e.g., performance, security, resiliency, etc.) which support the development of epics and user stories aligned to a value stream.
  • Identifies technical dependencies across several product/application teams to support the implementation of new or enhanced functionality.
  • Performs development, optimization, and automation activities to support the implementation of a product/application.
  • Develops and implements front-end architecture to support user interface concepts.
  • Identifies high level requirements to support the definition and refinement of a robust testing strategy.
  • Supports release planning activities in conjunction with Product Owners and teams.
  • Increases proficiency and understanding of relational and non-relational databases, distributed application architectures, user interfaces and user experience, quality assurance, security concerns, and business value creation.
  • Drives engineering best practices to deliver higher quality and scalable solutions.
  • Provides the team with the development strategy, solution recommendations, and estimates for a given product/application.
  • Participates in scrum ceremonies (sprint planning, retrospective, showcases/demos, stand-ups, backlog refinement, etc.).
  • Creates and executes unit tests which validate the code changes made to support the implementation of a user story.
  • Uses test driven development (TDD) practices to assist with the detection/recognition of software defects early in the development process.
  • Estimates, plans, and manages all implementation tasks and reports on development progress.
  • Designs, builds, debugs, optimizes, and implements solutions in approved tool sets and databases.
  • Develops high quality, efficient, and fault tolerant software.
  • Champions CI/CD practices for operational changes and collaborate with development teams to embed operational readiness into the software development lifecycle.
  • Designs and delivers DevSecOps automation for app deployment and testing.
  • Uses APM/monitoring tools such as Dynatrace/Splunk and browser tools to perform request purepath/waterfall analysis to identify bottlenecks and suggest improvements.
  • Participates in the development and documentation of department standards and best practices, and mentors' junior engineers.
  • Provides the team with solution recommendations and estimates for a given product/application.
  • Identifies deficiencies within a product/application's code base and identifies opportunities to improve overall code quality.
  • Collaborates with team members (e.g., Systems Architects, Systems Analysts) to define project specifications and release documentation for all phases of the product development cycle from product definition to design, through implementation.
  • Conducts peer code reviews for the software changes made by other engineers within a team.
  • Collaborates with Environment Analysts to define and refine the environment strategy needed to support day-to-day development activities.
  • Defines product/application specific coding standards and patterns to guide the implementation of new features and capabilities.
  • Supports the planning and execution of functional and non-functional (e.g., performance, fail-over, etc.) testing activities.
  • Provides technical expertise in establishing specific coding standards, patterns, and procedures.
  • Supervises systems and data analysis performed by Full Stack Engineers on products/applications to understand functional design requirements.
  • Defines remediation tactics for large and complex defects impacting several features and/or capabilities within a given product/application.
  • Supervises the development and preparation of technical documentation (e.g., runbooks, etc.).
  • Drives operational efficiency and technical growth by mentoring PODs through documentation, workshops, and other methods in the areas of software applications design, development, automation, CI/CD pipeline, and architecture.
  • Provides active support for business-critical outage situations.

REQUIRED
  • 15+ years of authoritative software architecture and technical design experience guiding the evolution of large-scale enterprise B2C and B2B eCommerce platforms
  • Mastery of scaling applications from threading implementations to infrastructure scaling and topology planning.
  • Deep experience in Java EE and specifically in developing Java based APIs and microservices applications using Spring Boot/Spring Framework.
  • Strong understanding and experience in implementing front-end solutions using React, Node JS.
  • Proven expertise in working with cloud platforms (e.g., AWS, Azure, Google Cloud Platform) to architect and implement scalable and efficient platforms and services.
  • Experience with managed kubernetes platform (GKE).
  • Extensive experience with modern monitoring, logging, and observability tools
  • Expertise with modern software development tools, including Git workflows, branching/versioning patterns, and CI/CD pipelines.
  • Database engineering experience with major relational databases (Spanner, DB2, SQL Server) and NoSQL systems.
  • Experience designing, building, and delivering Java and J2EE solutions using DevOps and Continuous delivery principles.
  • Hands on Experience leveraging asynchronous communication patterns for developing distributed applications. Experience with IBM MQ, Biztalk, Google Cloud Platform PubSub, and Kafka are desirable.
  • Strong familiarity with API gateway management (Apigee, APIM, and DataPower).
  • Strong understanding of data modeling, integration patterns and best practices.
  • Proven ability to work independently and effectively produce consistent results with minimal supervision.
  • Experience and ability to lead engineering teams in an Agile/Scrum environment.
  • Strong conceptual, analytical, problem-solving, decision making, troubleshooting, and resolution skills.
  • Strong communication and leadership with a track record of mentoring and collaborating across teams.
  • Demonstrates a positive attitude, is self-motivated, responsible, conscientious, and detail oriented.
  • Demonstrated ability to lead during critical incidents, perform root cause analysis, and drive problem resolution, taking ownership and responsibility of critical issues.
  • Self-motivated and detailed-oriented with a positive, collaborative attitude.
Recommended
  • Bachelor's degree or higher in Computer Science or equivalent experience.
  • Proven experience delivering Google Cloud Platform/Azure cloud technology solutions.
  • Proficient in Google Workspace applications, including Sheets, Docs, Slides, and Gmail.

Required Documents
Cover Letter
Resume

California applicants, please click here to review the Costco Applicant Privacy Notice.

Pay Ranges:

Level 1 - $85,000 - $110,000

Level 2 - $105,000 - $135,000

Level 3 - $130,000 - $160,000

Level SR - $150,000 - $190,000, Bonus and Restricted Stock Unit (RSU) eligible

Level Staff - $180,000 - $225,000, Bonus and Restricted Stock Unit (RSU) eligible

We offer a comprehensive package of benefits including paid time off, health benefits - medical/dental/vision/hearing aid/pharmacy/behavioral health/employee assistance, health care reimbursement account, dependent care assistance plan, short-term disability and long-term disability insurance, AD&D insurance, life insurance, 401(k), stock purchase plan to eligible employees.

Costco is committed to a diverse and inclusive workplace. Costco is an equal opportunity employer. Qualified applicants will receive consideration for employment without regard of race, national origin, gender, gender identity, sexual orientation, protected veteran status, disability, age, or any other legally protected status. If you need assistance and/or a reasonable accommodation due to a disability during the application or the recruiting process, please send a request to

If hired, you will be required to provide proof of authorization to work in the United States. In some cases, applicants and employees for selected positions will not be sponsored for work authorization, including, but not limited to H1-B visas.

Skills

Microservices
SQL
SQL Server
Spring
Spring Boot
API Gateway
AWS
Scrum
Splunk
TDD
Agile
Azure
Git
Google Cloud
Google Workspace
Java
Kafka
Kubernetes
React

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