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Software Engineer - IT Sustainability

Company:
Costco
Location:
Issaquah, WA
Posted:
May 16, 2025
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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.

This position will require an individual to design, build, enhance, and implement solutions in a fast-paced Agile environment participating in scrum ceremonies, and working closely with a highly motivated team.

The IT Sustainability at Costco is focused on providing technical solutions to support Costco’s sustainability commitment and work towards a more sustainable future for our members, employees, suppliers, shareholders, communities, and the environment. It is a fast-paced and highly visible team, supporting the business goals by being an industry leader in this space.

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

● 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.

● 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.

● Identifies technical dependencies across several product/application teams to support the implementation of new or enhanced functionality.

● Provides the team with the development strategy, solution recommendations, and estimates for a given product/application.

● Drives engineering best practices to deliver higher quality and scalable solutions.

● Supports release planning activities in conjunction with Product Owners and teams.

● Identifies high-level requirements to support the definition and refinement of a robust testing strategy.

● 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.

● 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.

● Supports, extends, and builds automated CI and CD pipelines.

● 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.

● 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.

● Demonstrates a strong understanding of emerging technologies to support the development of new solutions.

● Supports Architects with the design of the overall architecture of a specific product/application; applies principles that promote availability, reusability, interoperability, and security into the design framework.

● Works with team members to move user stories from the development backlog into testing and provides clarification when needed.

● Adheres to team and departmental development standards.

● Mentors other team members.

● Participates in team planning and activities for improving skills, knowledge, and quality of work.

REQUIRED

● 5+ years’ experience or demonstrated equivalence in full stack development.

● 3+ years’ experience or demonstrated equivalence in performing Web and UI development.

● Knowledge of application development in React, Typescript/JavaScript, Node, Terraform, and Docker.

● Understands support of application lifecycle from code to deployment using CI/CD methodology.

● Possesses a strong understanding of the Agile software development process.

● Strong knowledge of object-oriented concepts and experience working with document databases.

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

● Willingness to learn third-party applications.

● Demonstrated ability to execute against iteration plans and deliver assignments within scope, schedule, and budget.

● Ability to work with all management levels.

● Possesses high integrity, accountability, a positive attitude, and be willing to do what it takes to make the team successful.

● Team player; good interpersonal, organizational, and communication skills. Creative, likes challenges.

● Strong organizational and time management skills with ability to multitask and prioritize work effectively in a fast-paced working environment.

● Customer-centric focus and dedicated to business partnership while meeting the needs of the business leveraging out of the box functionality without a high degree of customization.

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

● Strong problem-solving skills and have the ability to analyze potential future issues.

● Ability to effectively teach and mentor other team members.

● Ability to perform tasks with a high degree of accuracy and timeliness.

● Extremely responsive and able to work under pressure.

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

Recommended

● Bachelor’s degree in Computer Science or related disciplines.

● Experience in development of scalable web services in n-tier architecture using containerized web services.

● Experience working with complex network topologies, including firewalls, API Gateways, load balancers.

● Experience developing single-page applications using React.

● Experience with designing site layout using Tailwind CSS.

● Experience with Azure DevOps or equivalent code management systems.

● Experience and understanding of Costco’s business model and legacy systems.

● Ability to listen to and understand business needs.

● Analytical thinker possessing strong problem-solving and decision-making skills.

● Proven experience working within a complex software development environment.

● Deep understanding of business requirements elicitation pursuant to specific programs/projects involved.

● Expertise in utilizing standard documentation tools/utilities.

● 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 STF - $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.

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