Senior Software Engineer

First Job Previous Job 5 of 1,378 Next Job Last Job Share More Like This Salary Not Available Position range in St. Louis, MO-IL Metropolitan Statistical Area $91k - $138k Per Year Senior Software Engineer Ethoca LLC

Occupation:

Software Developers

Location:

O Fallon, MO - 63368 Positions available: 1 Job #: 13820156

Source:

MoJobs

Posted:

04/27/2026

Updated:

04/27/2026

Expires:

06/01/2026

Web Site:

MoJobs Onsite /

Remote:

Onsite and Remote options

Job Type:

Regular, Full Time (30 Hours or More), Permanent Employment

Agency Job ID:

MC17-2025B

Job Requirements and Properties Help for Job Requirements and Properties. Opens a new window. Hybrid Education Master's Degree Experience 24 Month(s) Schedule Full Time Job Type Regular Duration Permanent Employment Hours 40 Hours Per Week Public Transit Available Job Description Help for Job Description. Opens a new window.

Position Duties:

Assist with all aspects of the software development lifecycle. Responsible for gathering, understanding, and analysis of business requirements for new products. Design, develop and deliver software solutions for Mastercard Product offerings. Define requirements for new applications and customizations, adhering to internal standards, processes, and best practices. Design and develop applications by writing advanced software code, systems to system interfaces and complete software solutions. Identify features or refinements that can improve an existing product and design. Responsible for testing, and quality assurance of the product to ensure that any new or modified components properly adhere to Mastercard's standards. Create unit, functional and integration tests. Responsible for utilizing highly technical skills to create documentation, including user guide and software development guides to be followed by external customers and internal software development professionals. Provide mentorship and technical support as needed to junior software developers.

Job Requirements:

Master's degree, or foreign equivalent, in Computer, Electrical, Electronic, Mechanical, Industrial Engineering, Management Information Systems, Business Administration, or related technical field and two (2) years of experience in job offered or as a Software Engineer, IT Engineer, Software Developer, Technical Lead, Programmer Analyst, or related position. Alternatively, employer will accept a Bachelor's degree and five (5) years of progressively responsible experience. Qualifying experience must include at least one (1) year with each of the following:

JAVA/J2EE

;

SQL, PL/SQL, HTML/XHTML, JSON/XML, ORACLE/MYSQL, SPRING/STRUTS, APACHE TOMCAT/TOMCAT, WINDOWS/LINUX, ECLIPSE, JENKINS OR CI/CD TOOLS, ALM TOOLS.

Employer will accept any suitable combination of education, training, or experience. Telecommuting and/or working from home may be permissible pursuant to company policies.

Hours per week:

40 hours/week