Top 9 Test engineer i Jobs in Saint Peters, Mo

Software Engineer I
Mastercard —O'Fallon, MO
- $72,000 - $115,000 a year
- Online Application
- Analysis skills
- Communication skills
- Entry level
- Paid jury duty
- Health savings account
ATC DC Operations Technician I
World Wide Technology Holding, LLC —St. Louis, MO
- $19 - $24 an hour
- Full-time
- Microsoft Excel
- Microsoft Outlook
- Windows
- Profit sharing
- Wellness program
Metrology Engineer I
Kindeva Drug Delivery Careers —Bridgeton, MO
- Full-time
- Mid-level
- 3 years
- Associate's degree
Quick Apply
Software Engineer I
Nidec Motor Corporation —St. Louis, MO
- Full-time
- Computer science
- Computer Science
- Bachelor of Science
Application Engineer I
Nidec Motor Corporation —St. Louis, MO
- Full-time
- Computer literacy
- Bachelor of Science
- Data analysis skills
Mechanical Engineer PE I
ENFRA LLC —Creve Coeur, MO
- $103,175 - $132,765 a year
- Full-time
- Computer literacy
- Engineering
- Mid-level
- Opportunities for advancement
HVAC Controls - Technical Services Engineer I
ENFRA LLC —Creve Coeur, MO
- $103,175 - $132,810 a year
- Full-time
- Construction site
- System design
- Mid-level
- Opportunities for advancement

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ATC DC Operations Technician I
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Software Engineer I

Mastercard -
O'Fallon, MO

Apply Now

Job Details

Full-time
$72,000 - $115,000 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

Spring Boot
Software engineering
Automation
RESTful API
Application Architecture Design (Architecture design skill)
Data structures
AI tools proficiency
Technology security practices
Enterprise software systems development
Microservices
Technical solutions implementation
Analysis skills
Distributed systems
Quality issues
Continuous integration
JPA
Prototype creation
Cloud Native Design
Developing automated testing protocols
Scalability
Agile software development
Application Maintenance
Systems & applications support
Kafka
Engineering functional testing
Cross-functional collaboration
Prototypes
Communication skills
Entry level
Cross-functional communication

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

Software Engineer I

Overview
The Software Engineer I is an early-career software engineer specializing in Java development with a focus on building microservices that support Mastercard's high-throughput, low-latency transaction processing platforms. This role provides opportunities to learn modern software engineering practices while contributing to the development, testing, deployment, and support of business-critical applications.

What You Will Do

Develop software solutions by translating product requirements into technical implementations with guidance from senior engineers.
Contribute to software design discussions and propose scalable, maintainable solutions.
Write modular, readable, and performant code following engineering best practices.
Develop and maintain unit tests and automated test coverage to validate software quality and reliability.
Participate in functional and integration testing activities across applications and services.
Follow secure coding standards and software engineering best practices throughout the development lifecycle.
Participate in peer code reviews and incorporate feedback to improve code quality and maintainability.
Assist with prototyping and proof-of-concept initiatives.
Support cloud-ready microservices and distributed applications.
Assist in troubleshooting and resolving software defects and production issues.
Build applications with maintainability, reliability, and operational readiness in mind.
Collaborate closely with cross-functional teams using Agile Scrum methodologies.

All About You

Good understanding of Java, J2EE, Spring, Spring Boot, Kafka, RESTful Web Services, and JPA.
Foundational understanding of software design and architecture concepts.
Familiarity with unit, functional, and integration testing practices.
Understanding of secure coding principles.
Strong problem-solving and analytical skills.
Strong understanding of data structures and their impact on application performance.
Exposure to microservices and cloud-native application development.
Knowledge or experience with AI-assisted applications, AI agents, or agentic workflows is a plus.
Exposure to CI/CD practices and Test-Driven Development.
Strong communication skills and willingness to learn from experienced engineers.

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: $72,000 - $115,000 USD

Apply Now

Refine Your Search

test engineer i jobs in saint peters, mo

Software Engineer I

ATC DC Operations Technician I

Metrology Engineer I

Software Engineer I

Application Engineer I

Mechanical Engineer PE I

HVAC Controls - Technical Services Engineer I

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