Company Summary Zoro.com is a leading eCommerce platform offering nearly 15 million tools, parts and supplies for our business customers. Launched in 2011, we brought a B2C-like experience to the B2B industry, and continue to be at the forefront of digital innovation at the intersection of technology and distribution. We have rapidly grown to over $1 billion in annual revenue and we're just getting started! Job Summary: As part of Zoro's Production Engineering group, the Headless eCommerce (HEC) team builds, maintains, and evolves the services and infrastructure powering Zoro's critical order-placement systems, including cart, checkout, and order fulfillment. We're seeking a Senior Software Engineer to lead the design, development, and implementation of backend solutions, empowering other engineering teams through a platform-first approach. This role involves driving technical innovation, developing a deep understanding of end-to-end business processes, and fostering stronger full-stack collaboration across teams. You will also maintain strong alignment and close collaboration with Product Management to ensure technical solutions directly support business and customer needs. This role offers significant growth opportunities for engineers looking to strengthen their leadership and technical skills. Duties and Responsibilities: As a Senior Software Engineer, you will: * Help drive the ever evolving HEC platform, enabling other engineering teams to independently develop and enhance backend services. * Collaborate closely with product managers, business stakeholders, and engineering teams to deeply understand, optimize, and improve the end-to-end ordering process. * Participate in defining technical roadmaps, aligning closely with broader business objectives and product strategy. * Mentor engineers across teams, promoting a culture of full-stack ownership, technical excellence, and continuous learning. * Design, develop, and maintain high-performance, scalable, secure, and reliable backend systems, proactively identifying and implementing improvements. * Lead code reviews and enforce best practices, maintaining high standards for code quality, security, maintainability, and technical documentation. * Collaborate with security engineers to define and implement robust security strategies, ensuring systems meet compliance and best practices. * Resolve high-priority technical issues within a support rotation, identifying opportunities for process and system improvements. Minimum Qualifications: * Bachelor's degree in Computer Science, a related field, or equivalent practical experience. * 6+ years of professional software engineering experience, including significant hands-on work building and deploying cloud-based systems (GCP preferred). * Proficiency in multiple programming languages (Python and Typescript preferred). * Experience working closely with product management and multiple engineering teams, enabling technical alignment and platform utilization across teams. * Demonstrated capability in enabling other teams through clear documentation, effective API design, and self-service tools. * Proven track record in designing and building scalable, highly available cloud-based microservices with a strong focus on non-functional requirements such as reliability, maintainability, and observability. * Hands-on experience with containerization and orchestration using technologies like Docker and Kubernetes. * In depth expertise of infrastructure-as-code and deploying cloud-based microservices using modern CI/CD workflows. * Strong communication and collaboration skills, comfortable partnering across multiple teams and clearly communicating technical concepts. Preferred Qualifications: * Familiarity with front-end frameworks and an understanding of component-based architecture and reactive data models. * Familiarity with MACH architecture and headless commerce concepts. * Experience aligning technical platform teams closely with broader product-driven roadmaps. * Experience partnering with staff engineers to ideate, iterate, and refine technical solutions and approaches. * Demonstrated enthusiasm for continuous learning, adaptability, and desire to grow into larger technical and leadership roles. Total Rewards Zoro's total compensation plan includes our Zoro Incentive Plan (ZIP) that is designed to foster and reward our team members for strong performance. Total compensation will be highly competitive. In addition to competitive compensation, Zoro offers comprehensive benefits and perks including: * Medical, dental, vision, and life insurance plans with coverage starting on day one of employment * 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. We also support growing your family through access to adoption assistance program * 6 free sessions each year with a licensed therapist and Wellhub portal membership to support your mental and emotional wellbeing * At least 18 paid time off days annually for full-time employees and 6 company holidays per year * 6% company contribution to a 401K Retirement Savings Plan each pay period, no employee contribution required * Tuition reimbursement, student loan refinancing and access to financial counseling, education, and tools * Charitable Gift Program - match gift to an eligible educational, cultural, community health, and human service organizations * Employee discounts and admission to various civic and cultural institutions around Chicago * Zoro office perks including coffee bar, beer on tap, unlimited snacks, access to the onsite gym, and incredible city skyline views For additional information and details regarding our benefits and our parent company, W. W. Grainger, please click on the link here. Illinois $102,800-$171,300 USD Our Culture Zoro was founded in 2011 with a simple idea: make it easy for businesses to get the tools, parts, and supplies they need to keep things running. We've grown by staying curious, moving quickly, and solving everyday challenges in smart, practical ways. Backed by W.W. Grainger and inspired by our endless assortment business model, we're on a clear path toward our next big milestone: $2 billion in revenue-and beyond. At Zoro, we don't just follow a playbook-we help build it. You'll get to work on real problems with a supportive team that shares ideas freely, learns from each other, and celebrates wins together. Our culture is grounded in values that guide how we show up every day: Winning & Learning Together, Being Customer Obsessed, Being Transparent, and Taking Ownership. We don't have all the answers, but we're always asking good questions. Zoro's culture has been recognized by Fortune, Best Places to Work, and Built In Chicago-but the recognition we care about most comes from our team members, who make this place what it is. We also know that flexibility matters. Our hybrid work model gives you space to focus and the flexibility to live your life - asking team members to be onsite at least two days a week. Our Chicago HQ (right above Ogilvie Transportation Center in the Accenture Tower) is always open and ready for connection, collaboration, or just a good cup of coffee. At Zoro, we're growing fast toward big aspirations - and we're continuously excited about the new challenges we get to solve together. 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 also 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.