Principal Software Engineer at Ecolab in Naperville, IL

Principal Software Engineer Location: USA - Illinois - Naperville What is in it for you Opportunity to shape enterprise‑scale cloud commercial digital solutions High visibility and influence across digital engineering initiatives Strong collaboration with product, business, and leadership teams Leadership path without stepping away from hands‑on engineering What you will do Lead end‑to‑end architecture and development of cloud‑native, full‑stack applications Define and evolve cloud architecture standards for scalability, resiliency, security, and cost optimization Design and implement RESTful APIs, microservices, and event‑driven systems Build modern frontend experiences and robust backend services using current frameworks and patterns Provide technical leadership and mentorship to engineers across teams Drive engineering best practices including CI/CD, automated testing, observability, and security Collaborate with Product, UX, DevOps, and Enterprise Architecture teams to deliver business outcomes Lead technical design reviews and influence roadmap and platform decisions Support modernization and migration of legacy systems to cloud platforms Required Qualifications Bachelor's degree or equivalent professional work experience 10 years of professional software engineering experience Proven experience designing and delivering cloud‑based architectures (Azure, AWS, or GCP) Strong full‑stack development expertise (frontend + backend) Advanced experience with backend technologies such as .NET, Java, Node.js, or similar Experience with modern frontend frameworks such as React, Angular, or Vue Strong knowledge of API design, microservices, containers, and cloud services Hands‑on experience with CI/CD pipelines and DevOps practices Solid understanding of security, authentication/authorization, and data protection Excellent communication skills and the ability to influence technical direction No immigration sponsorship available for this position. Preferred Qualifications Experience with Azure services (App Services, AKS, Functions, Event Grid, Cosmos DB, etc.) Experience leading large‑scale, enterprise platforms Exposure to domain‑driven design, event‑driven architecture, or distributed systems Experience mentoring senior and principal‑level engineers Background in regulated or enterprise environments (healthcare, life sciences, industrial, etc.) 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.