Sr. Software Engineers

Posted 22 Jan 2024

St. Louis, Missouri - United States

Req Id 271403

Work Your Magic with us!

Ready to explore, break barriers, and discover more? We know you’ve got big plans – so do we! Our colleagues across the globe love innovating with science and technology to enrich people’s lives with our solutions in Healthcare, Life Science, and Electronics. Together, we dream big and are passionate about caring for our rich mix of people, customers, patients, and planet. That's why we are always looking for curious minds that see themselves imagining the unimaginable with us.

Job Title: Sr. Software Engineers

Employer: Sigma-Aldrich Corporation, 400 Summit Drive, Burlington, MA 01803

Job Location: Sigma-Aldrich Corporation, 3050 Spruce Street, St. Louis, Missouri 63103




The Sr. Software Engineer will be responsible for the following job duties:


  1. Prepare high-level software design documents and technical specifications;
  2. Review software application code;
  3. Prepare production release documents and database, elastic search, and external system dependencies;
  4. Handle software application code implementation;
  5. Explore new technologies and features added in new software upgrades;
  6. Support and maintain production;
  7. Work with testing teams to add APIs to performance test suite;
  8. Monitor API performance and analytics; and
  9. Document existing processes.




Employer requires candidate to have a Bachelor’s degree in computer engineering or a closely related field and five (5) years of progressively more responsible work experience in software engineering or a closely related occupation.


Candidate must also have the following:


  1. Demonstrated Knowledge of Object oriented programming gained through five (5) years of work experience;
  2. Demonstrated experience using JAVA and J2EE gained through five (5) years of work experience;
  3. Demonstrated experience designing web applications with at least two (2) of the following technologies: JSP, Servlets, HTML 5, JavaScript, AJAX, JRules, CSS, Struts, Adobe Flex, or Action Scripts gained through five (5) years of work experience;
  4. Demonstrated experience with Web Services including SOAP web services or RESTFUL webservices gained through four (4) years of work experience;
  5. Demonstrated experience with multiple relational databases such as Oracle or SQL Server gained through three (3) years of work experience; and
  6. Demonstrated knowledge of ETL tools such as Pentaho and Teradata for business analytics gained through one (1) year of work experience.


Telecommuting is an option.


All years of experience may be gained concurrently.


This position is eligible for Sigma-Aldrich Corporation’s employee referral program.


Applicants can send resumes to Sigma-Aldrich Corporation, 400 Summit Drive, Burlington, Massachusetts 01803 (Attn: Req # 271403) or apply online at



What we offer: We are curious minds that come from a broad range of backgrounds, perspectives, and life experiences. We celebrate all dimensions of diversity and believe that it drives excellence and innovation, strengthening our ability to lead in science and technology. We are committed to creating access and opportunities for all to develop and grow at your own pace. Join us in building a culture of inclusion and belonging that impacts millions and empowers everyone to work their magic and champion human progress!
Apply now and become a part of our diverse team!

If you would like to know more about what diversity, equity, and inclusion means to us, please visit

US Equal Employment Opportunities

The Company is an Equal Employment Opportunity employer. No employee or applicant for employment will be discriminated against on the basis of race, color, religion, age, sex, sexual orientation, national origin, ancestry, disability, military or veteran status, genetic information, gender identity, transgender status, marital status, or any other classification protected by applicable federal, state, or local law.  This policy of Equal Employment Opportunity applies to all policies and programs relating to recruitment and hiring, promotion, compensation, benefits, discipline, termination, and all other terms and conditions of employment. Any applicant or employee who believes they have been discriminated against by the Company or anyone acting on behalf of the Company must report any concerns to their Human Resources Business Partner, Legal, or Compliance immediately. The Company will not retaliate against any individual because they made a good faith report of discrimination.

We are committed to an equitable hiring process for candidates from a diverse range of backgrounds. As part of this commitment, applicants with disabilities may be entitled to reasonable accommodations. Please contact, if a reasonable accommodation is needed or if you otherwise need assistance to participate in the hiring process.

North America Disclosure

If you are a resident of California, Colorado, New York, or Washington, you are eligible to receive additional information about the compensation and benefits, which we will provide upon request. You may contact 855 444 5678 from 8:00am to 5:30pm ET Monday through Friday, for assistance.

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