Principal Software Engineer at Ecolab in Naperville, IL

Principal Software Engineer Location: USA - Illinois - Naperville We are seeking a technically strong and hands-on Principal Software Engineer with deep frontend expertise to join our team and help drive the design and development of a modern, enterprise-scale user interface commercial products. This role will play a critical part in shaping frontend architecture, defining engineering standards, and leading teams delivering complex, multi-application UI experiences in a highly collaborative environment. What you will do: Lead frontend engineering efforts for enterprise-scale digital commercial applications, providing hands-on technical leadership and architectural guidance. Define and drive modern frontend architecture, including micro-frontend approaches and shared UI composition patterns. Establish and enforce frontend engineering standards, coding practices, and architectural patterns that support scalability, performance, and long-term maintainability. Provide technical and procedural direction across the full software development lifecycle, from design through implementation, testing, and support. Partner with backend, platform, security, and UX teams to deliver cohesive, high-quality user experiences. Own frontend build, packaging, and deployment strategies, including integration with CI/CD pipelines. Define and champion testing strategies across unit, integration, and end-to-end levels, driving quality through automation. Troubleshoot and resolve complex UI issues spanning framework boundaries, micro-frontend orchestration, performance, and runtime behavior. Participate in architecture reviews, design reviews, and code reviews to ensure adherence to standards and best practices. Mentor and coach engineers, fostering technical growth, adoption of shared standards, and reuse of common components and patterns. Influence technical and business decisions by collaborating with engineering leadership and executive stakeholders on strategic initiatives. Minimum Qualifications Bachelor’s degree in Computer Science, Engineering, or a related field, or equivalent combination of education and significant professional experience. 12 years of software engineering experience, with deep specialization in frontend development. 5 years of  hands-on expertise with modern frontend frameworks such as React or Angular, and strong command of TypeScript/JavaScript (ES6+), HTML, and CSS architecture. Strong experience designing and supporting micro-frontend architectures, including orchestration and module federation concepts. Demonstrated expertise in frontend testing frameworks and strategies Experience with frontend build tooling and bundlers and integration into CI/CD pipelines. Ability to operate independently in complex environments, leading technical initiatives with minimal supervision. Excellent communication skills, with the ability to interface effectively with engineers, product partners, and executive leadership. Preferred Qualifications Master’s degree in Computer Science, Engineering, or a related field Experience working in large-scale enterprise environments with multiple frontend applications and shared platform concerns. Familiarity with enterprise authentication patterns, including SSO integration, token management, and secure API consumption. Experience with frontend state management solutions Exposure to performance optimization and observability practices, and frontend monitoring tools. Proven track record of mentoring engineers and driving adoption of shared standards, design systems, and reusable UI components. Recognition as a technical leader or subject matter expert within and beyond the immediate team or organization. Annual or Hourly Compensation Range The base salary range for this position is $153,900.00 - $230,800.00. This position is eligible for annual bonus pay based on performance, per plan terms. Many factors are taken into consideration when determining compensation, such as experience, education, training, geography, etc. We comply with all minimum wage and overtime laws. Benefits Ecolab strives to provide comprehensive and market-competitive benefits to meet the needs of our associates and their families.Click hereto see our benefits. If you are viewing this posting on a site other than our Ecolab Career website, view our benefits at jobs.ecolab.com/working-here. Potential Customer Requirements Notice To meet customer requirements and comply with local or state regulations, applicants for certain customer-facing roles may need to: - Undergo additional background screens and/or drug/alcohol testing for customer credentialing. - Be fully vaccinated for COVID-19, including a booster if eligible, unless a religious or medical accommodation is requested by the applicant and approved by Ecolab. Americans with Disabilities Act (ADA) Ecolab will provide reasonable accommodation (such as a qualified sign language interpreter or other personal assistance) with our application process upon request as required to comply with applicable laws. If you have a disability and require accommodation assistance in this application process, please visit the Recruiting Support link in the footer of each page of our career website.