Senior Software Engineer - Authentication Services

Work Location Type: Hybrid

Req Number 322998

About Grainger:

W.W. Grainger, Inc., is a leading broad line distributor with operations primarily in North America, Japan and the United Kingdom. At Grainger, We Keep the World Working® by serving more than 4.5 million customers worldwide with products and solutions delivered through innovative technology and deep customer relationships. Known for its commitment to service and award-winning culture, the Company had 2024 revenue of $17.2 billion across its two business models. In the High-Touch Solutions segment, Grainger offers approximately 2 million maintenances, repair and operating (MRO) products and services, including technical support and inventory management. In the Endless Assortment segment, Zoro.com offers customers access to more than 14 million products, and MonotaRO.com offers more than 24 million products. For more information, visit

Compensation:

The anticipated base pay compensation range for this position is $110,500.00 to $184,100.00.

Rewards and Benefits:

With benefits starting on day one, our programs provide choice and flexibility to meet team members' individual needs, including:

• Medical, dental, vision, and life insurance plans with coverage starting on day one of employment and 6 free sessions each year with a licensed therapist to support your emotional wellbeing.
• 18 paid time off (PTO) days annually for full-time employees (accrual prorated based on employment start date) and 6 company holidays per year.
• 6% company contribution to a 401(k) Retirement Savings Plan each pay period, no employee contribution required.
• Employee discounts, tuition reimbursement, student loan refinancing and free access to financial counseling, education, and tools.
• Maternity support programs, nursing benefits, and up to 14 weeks paid leave for birth parents and up to 4 weeks paid leave for non-birth parents.

For additional information and details regarding Grainger’s benefits, please click on the link below:

The pay range provided above is not a guarantee of compensation. The range reflects the potential base pay for this role at the time of this posting based on the job grade for this position. Individual base pay compensation will depend, in part, on factors such as geographic work location and relevant experience and skills.

The anticipated compensation range described above is subject to change and the compensation ultimately paid may be higher or lower than the range described above.

Grainger reserves the right to amend, modify, or terminate its compensation and benefit programs in its sole discretion at any time, consistent with applicable law.

Position Details:

You’ll be joining Grainger’s Customer Identity & Access Management Engineering team , a group of passionate problem-solvers who build and secure the foundation of digital trust across the enterprise. The team partners closely with product, platform, and security stakeholders to enable frictionless yet secure access experiences for millions of users. We pride ourselves on being collaborative, innovative, and pragmatic—balancing security with business agility. As a Senior Software Engineer, you will have the opportunity to shape the future of Grainger’s Customer IAM strategy, mentor peers, and make a direct impact on how our customers and employees securely interact with Grainger’s digital ecosystem.

You will:

• Design & Implement IAM Solutions : Build and integrate solutions using platforms such as Auth0, Okta, and other CIAM frameworks.
• Authorization Services : Develop fine-grained authorization using policy frameworks like Open Policy Agent (OPA).
• Security & Risk Mitigation : Protect enterprise assets by implementing secure authentication and authorization patterns, balancing user experience with strong controls.
• Thought Leadership : Serve as a subject matter expert, advising business and technology teams on IAM best practices and recommending innovative solutions.
• Project & Initiative Ownership : Oversee IAM-related initiatives, ensuring alignment with strategic goals, on-time delivery, and effective adoption.
• Cross-Team Collaboration : Partner with security, engineering, and product stakeholders to build seamless IAM processes across the business.
• AI & Analytics in IAM : Leverage AI/ML and data analytics to enhance access monitoring, detect anomalies, and prevent fraud or account takeovers.
• Continuous Learning & Innovation : Stay ahead of regulatory, legal, and technology trends to ensure Grainger’s IAM practices remain industry leading.
• Generative AI Enablement : Apply Generative AI tools to streamline IAM operations, compliance automation, and user experience improvements.
• Evaluation & Selection : Research and recommend new IAM products, frameworks, and standards to evolve the platform.
• Incident Response & Support : Lead resolution of IAM incidents within SLAs while providing clear, business-friendly communication.
• User Experience Enhancement : Continuously identify opportunities to simplify user access while strengthening security posture.
• Operational Excellence : Perform administrative maintenance, documentation, and special IAM tasks as required.

You have:

• Bachelor’s degree in computer science, Information Systems, or related technical field with 8+ years of IT experience ; or 10+ years without a degree.
• 5+ years hands-on experience with identity and federation services implementation and support.
• Expertise in authentication/authorization protocols (SAML 2.0, OAuth 2.0, OIDC).
• Strong understanding of IAM security design principles and best practices.
• Hands-on experience with application development, REGO, and REST APIs .
• Cloud experience with Azure, AWS, or Google Cloud .
• Strong collaboration and communication skills, with experience influencing cross-functional teams and vendors.
• Background in Agile and DevOps environments.
• Ability to mentor and coach junior engineers, analysts, and interns.

We are committed to equal employment opportunity regardless of race, color, ancestry, religion, sex (including pregnancy), national origin, sexual orientation, age, citizenship, marital status, disability, gender identity or expression, protected veteran status or any other protected characteristic under federal, state, or local law. We are proud to be an equal opportunity workplace.

We are committed to fostering an inclusive, accessible work environment that includes both providing reasonable accommodations to individuals with disabilities during the application and hiring process as well as throughout the course of one’s employment, should you need a reasonable accommodation during the application and selection process, including, but not limited to use of our website, any part of the application, interview or hiring process, please advise us so that we can provide appropriate assistance.