Top 50 Senior software quality engineer Jobs in O'fallon, Mo

Senior Software Engineer
Mastercard —O'Fallon, MO
- $115,000 - $184,000 a year
- Online Application
- Computer science
- Computer Science
- System design
- Paid jury duty
- Health savings account
Senior Site Reliability Engineer, Performance Engineering
Mastercard —O'Fallon, MO
- $96,000 - $163,000 a year
- Online Application
- Computer Science
- System design
- Java
- Paid jury duty
- Health savings account
Senior Site Reliability Engineer
Mastercard —O'Fallon, MO
- $96,000 - $163,000 a year
- Online Application
- Computer science
- Computer Science
- Bachelor of Science
- Paid jury duty
- Health savings account
Senior Site Reliability Engineer
Mastercard —O'Fallon, MO
- $163,000 a year
- Online Application
- Computer Science
- Bachelor of Science
- System design
- Paid jury duty
- Health savings account
Senior Software Engineer - Java Full Stack Engineer
Mastercard —O'Fallon, MO
- $115,000 - $184,000 a year
- Online Application
- Computer science
- 7 years
- Computer Science
- Paid jury duty
- Health savings account
Senior Software Engineer
Eastman Chemical Company —St. Louis, MO
- Azure
- 5 years
- Office
Senior Structural Engineer - (QC/QA)
DOTec Professional Corporation —Saint Charles, MO
- $90,000 - $140,000 a year
- Full-time
- Hybrid work
- English
- Office
- Residential
- Paid holidays
- Health insurance
Quick Apply
1d
Senior Test Engineer
Leidos —St. Louis, MO
- $107,900 - $195,050 a year
- Full-time
- Azure
- 6 years
- Computer Science
11d
Senior Test Engineer
Leidos —St. Louis, MO
- $107,900 - $195,050 a year
- Full-time
- 6 years
- Computer Science
- Master's degree
10d
Senior Embedded Software Engineer
Leonardo DRS —Bridgeton, MO
- $93,121 - $125,713 a year
- Full-time
- Hybrid work
- Computer Science
- 5 years
- Office
- Paid parental leave
- Health savings account
Senior Test Automation Engineer
Enterprise Mobility —St. Louis, MO
- Full-time
- Remote
- Computer Science
- Bachelor's degree
- Continuous improvement
- Profit sharing
- Health insurance
4d
Senior Software Engineer - Vehicle Health Management
Boeing —Hazelwood, MO
- $160,650 - $217,350 a year
- Computer science
- Computer Science
- Bachelor of Science
- Health savings account
- Disability insurance
BackEnd Software Engineer (Experienced or Senior)
Boeing —Berkeley, MO
- $126,650 - $217,350 a year
- Computer science
- Computer Science
- 5 years
- Health savings account
- Disability insurance
Sr. QA/UAT Analyst
Cushman & Wakefield —St. Louis, MO
- $74,800 - $88,000 a year
- Full-time
- Bachelor of Science
- 3 years
- Analysis skills
- Health savings account
- Disability insurance
Quick Apply
DevSecOps Software Engineer (Experienced or Senior)
Boeing —Hazelwood, MO
- $112,200 - $185,150 a year
- Computer science
- Computer Science
- Bachelor of Science
- Health savings account
- Disability insurance
Application Software Engineer, Phantom Works (Experienced or Senior)
Boeing —Berkeley, MO
- $126,650 - $217,350 a year
- Computer science
- Computer Science
- Bachelor of Science
- Health savings account
- Disability insurance
Software Developer Engineer (Experienced or Senior)
Boeing —Hazelwood, MO
- $126,650 - $217,350 a year
- Computer science
- Computer Science
- Software troubleshooting
- Health savings account
- Disability insurance
Sr. Software Engineer
bioMérieux —Hazelwood, MO
- $82,000 - $115,000 a year
- Hybrid work
- Computer science
- 7 years
- Microsoft Outlook
- Commuter assistance
- Disability insurance
Quick Apply
Senior Systems Integration Engineer
Boeing —Hazelwood, MO
- $126,650 - $171,350 a year
- Computer science
- Computer Science
- 5 years
- Health savings account
- Disability insurance
SDC Java Software Developer---Senior---St. Louis
EY —St. Louis, MO
- $67,000 - $155,300 a year
- Computer science
- Azure
- Computer Science
- Paid holidays
- Health insurance

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Senior Software Engineer

Mastercard -
O'Fallon, MO

Apply Now

Job Details

Full-time
$115,000 - $184,000 a year

Benefits

Paid jury duty
Health savings account
Paid holidays
Disability insurance
Health insurance
Dental insurance
Flexible spending account
Tuition reimbursement
Vision insurance
401(k) matching
Gym membership
Bereavement leave
Life insurance

Qualifications

Java
Programming languages

Full Job Description

Our Purpose

Mastercard powers economies and empowers people in 200+ countries and territories worldwide. Together with our customers, we’re helping build a sustainable economy where everyone can prosper. We support a wide range of digital payments choices, making transactions secure, simple, smart and accessible. Our technology and innovation, partnerships and networks combine to deliver a unique set of products and services that help people, businesses and governments realize their greatest potential.

Title and Summary

Senior Software Engineer

Who is Mastercard?
Mastercard is a global technology company in the payments industry. Our mission is to connect and power an inclusive, digital economy that benefits everyone, everywhere by making transactions safe, simple, smart, and accessible. Using secure data and networks, partnerships and passion, our innovations and solutions help individuals, financial institutions, governments, and businesses realize their greatest potential.

Our decency quotient, or DQ, drives our culture and everything we do inside and outside of our company. With connections across more than 210 countries and territories, we are building a sustainable world that unlocks priceless possibilities for all.

Overview
The Decision Management Program (DMP) delivers industry‑leading intelligence that enables faster, smarter decisioning at global scale across the payment journey and beyond. Through a suite of products, DMP structures and applies complex business logic to help teams manage risk, adapt quickly to changing regulatory, geopolitical, or market conditions, and drive profitable customer engagements. Built for resiliency, availability, and future growth, DMP empowers Mastercard’s market-facing programs with agile, intelligent decision management capabilities worldwide.

A Senior Software Engineer is an experienced individual contributor who designs, develops, tests, and maintains complex software solutions while serving as a technical leader and mentor within their team. This role applies deep technical expertise to solve non‑trivial problems, influence design decisions, and improve engineering practices, while collaborating closely with product, operations, and other stakeholders.

Senior Software Engineers operate with high autonomy, contribute across the full software development lifecycle, and are expected to raise the technical bar for the team through code quality, system design, and knowledge sharing.

Role

Own software delivery tasks (code development, test, deployment, release, configuration and documentation) at an application/software component level
Able to troubleshoot and refactor existing code for exceptional code quality.
Adopt new languages and architecture patterns needed for the work.
Participate and contribute to team’s agile process and decisions. Understand and contribute to Prioritization.
Pull from backlog and deliver work after seeking guidance from experienced team members and in partnership with full scrum team.
Automate build, operate, and run aspects of software
Drive code/design/process trade-off discussions within their team when required
Drive integration of services focusing on customer journey and experience
Perform demos/acceptance discussions in interacting with Product owners
Understands operational and engineering experience, actively works to improve experience and metrics in ownership area
Develop complete understanding of end-to-end technical architecture and dependency systems.
Drive adoption of technology standards and opinionated frameworks, and review coding, test, and automation work of team members
Mentor and guide new and less-experienced team members
Identify opportunities to improve an overall process and trim waste
Share and seek knowledge within their Guild/Program to drive reuse of patterns/libraries/practices and enhance productivity

All about you

Working experience across multiple programming languages (JAVA is a must) and frameworks
High-energy, detail-oriented, proactive, and able to function independently under pressure
Passion for continuous learning and challenging opportunities
Strong communication skills—verbal and written—with strong relationship building, collaboration, and organizational skills
Drives outcomes through strong commitment to timely delivery of key objectives
Strong decision making skills and a continual improvement mindset
Solid experience with software development processes and one or more Application Lifecycle Management tools
Success producing high quality project design deliverables and documentation
Demonstrated track record with AI
Familiarity with performance tuning and automation
Bachelor’s degree in Computer Science (or extensive equivalent experience)

Mastercard is a merit-based, inclusive, equal opportunity employer that considers applicants without regard to gender, gender identity, sexual orientation, race, ethnicity, disabled or veteran status, or any other characteristic protected by law. We hire the most qualified candidate for the role. In the US or Canada, if you require accommodations or assistance to complete the online application process or during the recruitment process, please contact [email protected] and identify the type of accommodation or assistance you are requesting. Do not include any medical or health information in this email. The Reasonable Accommodations team will respond to your email promptly.

Corporate Security Responsibility

All activities involving access to Mastercard assets, information, and networks comes with an inherent risk to the organization and, therefore, it is expected that every person working for, or on behalf of, Mastercard is responsible for information security and must:

Abide by Mastercard’s security policies and practices;
Ensure the confidentiality and integrity of the information being accessed;
Report any suspected information security violation or breach, and
Complete all periodic mandatory security trainings in accordance with Mastercard’s guidelines.

In line with Mastercard’s total compensation philosophy and assuming that the job will be performed in the US, the successful candidate will be offered a competitive base salary and may be eligible for an annual bonus or commissions depending on the role. The base salary offered may vary depending on multiple factors, including but not limited to location, job-related knowledge, skills, and experience. Mastercard benefits for full time (and certain part time) employees generally include: insurance (including medical, prescription drug, dental, vision, disability, life insurance); flexible spending account and health savings account; paid leaves (including 16 weeks of new parent leave and up to 20 days of bereavement leave); 80 hours of Paid Sick and Safe Time, 25 days of vacation time and 5 personal days, pro-rated based on date of hire; 10 annual paid U.S. observed holidays; 401k with a best-in-class company match; deferred compensation for eligible roles; fitness reimbursement or on-site fitness facilities; eligibility for tuition reimbursement; and many more. Mastercard benefits for interns generally include: 56 hours of Paid Sick and Safe Time; jury duty leave; and on-site fitness facilities in some locations.

Pay Ranges

O'Fallon, Missouri: $115,000 - $184,000 USD

Apply Now

Refine Your Search

senior software quality engineer jobs in o'fallon, mo

Senior Software Engineer

Senior Site Reliability Engineer, Performance Engineering

Senior Site Reliability Engineer

Senior Site Reliability Engineer

Senior Software Engineer - Java Full Stack Engineer

Senior Software Engineer

Senior Structural Engineer - (QC/QA)

Senior Test Engineer

Senior Test Engineer

Senior Embedded Software Engineer

Senior Test Automation Engineer

Senior Software Engineer - Vehicle Health Management

BackEnd Software Engineer (Experienced or Senior)

Sr. QA/UAT Analyst

DevSecOps Software Engineer (Experienced or Senior)

Application Software Engineer, Phantom Works (Experienced or Senior)

Software Developer Engineer (Experienced or Senior)

Sr. Software Engineer

Senior Systems Integration Engineer

SDC Java Software Developer---Senior---St. Louis

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