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Contract Mastercard Software Engineer Jobs in Riverside, CA

Principal Embedded Software Engineer If you're a Principal Embedded Software Engineer with wireless ... S. government contracts. Responsibilities * Implementation of the software portion of MAC (Medium ...

Cloud Software Engineer II

Ontario, CA · On-site

$61 - $79.25/hr

We are seeking an experienced high-performing software engineer for a contract position in our core software group. The successful candidate will join a highly skilled development team delivering key ...

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Contract Mastercard Software Engineer information

See Riverside, CA salary details

$25K

$109.4K

$197.2K

How much do contract mastercard software engineer jobs pay per year?

As of Jul 14, 2026, the average yearly pay for contract mastercard software engineer in Riverside, CA is $109,400.00, according to ZipRecruiter salary data. Most workers in this role earn between $67,800.00 and $125,200.00 per year, depending on experience, location, and employer.

What are some common challenges faced by Contract Mastercard Software Engineers when integrating payment solutions for clients?

Contract Mastercard Software Engineers often encounter challenges such as navigating complex compliance requirements, ensuring secure data handling, and integrating APIs with diverse client systems. Since Mastercard's payment solutions must adhere to strict security standards like PCI DSS, engineers need to stay updated on regulations and best practices. Additionally, collaborating remotely with client teams and other vendors can introduce communication hurdles, making clear documentation and proactive updates crucial for project success.

What is the difference between Contract Mastercard Software Engineer vs Contract Visa Software Engineer?

AspectContract Mastercard Software EngineerContract Visa Software Engineer
Required CredentialsBachelor's in Computer Science, relevant coding skills, possibly certifications in software developmentBachelor's in Computer Science or related field, coding proficiency, industry certifications often preferred
Work EnvironmentFinancial services, payment processing, technology teams within MastercardFinancial services, payment solutions, technology teams within Visa
Employer & Industry UsagePrimarily in Mastercard's payment network and financial technology projectsPrimarily in Visa's payment network and financial technology projects

Both roles involve developing payment processing software within major financial networks. The main differences lie in the specific employer and associated payment platform. Contract Mastercard Software Engineers focus on Mastercard's systems, while Contract Visa Software Engineers work within Visa's infrastructure. Skills and credentials are similar, making these roles comparable in the financial technology industry.

What are the key skills and qualifications needed to thrive as a Contract Mastercard Software Engineer, and why are they important?

To thrive as a Contract Mastercard Software Engineer, you need strong proficiency in software development, payment processing technologies, and an understanding of Mastercard's platforms, often backed by a degree in computer science or related field. Familiarity with industry-standard languages (such as Java or C#), secure coding practices, and experience with Mastercard APIs or ISO 8583 protocols is typically required. Strong analytical thinking, problem-solving abilities, and effective communication skills help engineers collaborate with cross-functional teams and address complex technical challenges. These skills and qualities are crucial for ensuring secure, reliable, and innovative payment solutions that meet Mastercard's high standards.

What is a Contract Mastercard Software Engineer?

A Contract Mastercard Software Engineer is a technology professional who is hired on a temporary or project basis to develop, maintain, or improve software systems for Mastercard or its partners. These engineers typically work with payment technologies, security protocols, APIs, and large-scale transaction systems. They may be involved in designing new features, troubleshooting issues, or integrating Mastercard services with other platforms. Contract positions offer flexibility but may require specialized knowledge of payment processing and compliance standards. Such roles often involve close collaboration with both internal teams and external vendors.
What are the most commonly searched types of Mastercard Software Engineer jobs in Riverside, CA? The most popular types of Mastercard Software Engineer jobs in Riverside, CA are:
What cities near Riverside, CA are hiring for Contract Mastercard Software Engineer jobs? Cities near Riverside, CA with the most Contract Mastercard Software Engineer job openings:
Infographic showing various Contract Mastercard Software Engineer job openings in Riverside, CA as of July 2026, with employment types broken down into 1% As Needed, 65% Full Time, 19% Part Time, 1% Temporary, and 14% Contract. Highlights an 81% Physical, 2% Hybrid, and 17% Remote job distribution, with an average salary of $109,400 per year, or $52.6 per hour.
Senior Specialist, Software Engineering

Senior Specialist, Software Engineering

L3Harris Technologies

Anaheim, CA

$122K - $177K/yr

Full-time

Medical, Retirement, PTO

Re-posted 10 days ago


Job description

L3Harris is dedicated to recruiting and developing high-performing talent who are passionate about what they do. Our employees are unified in a shared dedication to our customers’ mission and quest for professional growth. L3Harris provides an inclusive, engaging environment designed to empower employees and promote work-life success. Fundamental to our culture is an unwavering focus on values, dedication to our communities, and commitment to excellence in everything we do.

L3Harris is the Trusted Disruptor in defense tech. With customers’ mission-critical needs always in mind, our employees deliver end-to-end technology solutions connecting the space, air, land, sea and cyber domains in the interest of national security.

Job Title:  Senior Specialist, Software Engineering
Job Code: 39185
Job Location: Anaheim, CA
Schedule: 9/80

JOB DESCRIPTION:

L3Harris Maritime Power & Energy Solutions (MPES) has an opening in the software engineering organization within its Maritime Systems sector site located in Anaheim, CA. Under general direction of the Management of Software Engineering, this position develops and applies advanced software engineering methods in the investigation and solution of complex and advanced technical problems power system architectures and power conversion equipment. The Senior Software Engineer shall lead software engineer team to support for all stages of product development from design through implementation and system integration under minimal supervision.

ESSENTIAL DUTIES 

  • Interpret customer specification to define requirements for software design.
  • Capture and document existing software product to meet qualification standards at highly regulated and safety critical government contracts.
  • Provide software technical leadership for the software developer team members.
  • Reviews project progress and helps in earned value reporting.  Recommends corrections in technical approach to maximize efficiency of engineering resources. 
  • Proactively seek performance improvement/enhancement for the SW team with DevSecOp assisted automation and streamlining.
  • Support new programs from conceptual design, through detail design to completion.
  • Responsible to lead and operate Agile sprint/Kanban team, sprint planning, Jira ticket-based workflow management, and tracking toward team deliverable objectives.

QUALIFICATIONS 

  • Bachelor of Science degree in Computer Engineering, Computer Science, Electrical Engineering, or equivalent from a four-year college or university; and minimum 6 years of experience in design and analysis of systems software for power conversion equipment. Master of Science or advanced degree preferred and a minimum of 4 years of prior related experience. Or in lieu of a degree, minimum of 10 years of prior related experience.
  • Ability to obtain and maintain a secret/security clearance.
  • Expertise in embedded real-time systems software design.
  • Experienced in object and service-based software architectures, a plus.
  • Experienced in embedded C and C++ programming.
  • Expertise with communication protocols, such as RS-232, RS-485, and Ethernet.
  • Proven effective communication with Senior Project Management and customer representatives is essential.

Preferred Additional Skills:

  • Experience in development and releasing software products meeting highly regulated and safety critical standards, medical or military grade software product, preferred.
  • Design familiarity with control systems and power conversion concepts is highly preferred.
  • Knowledge of power electronics and analog circuits, a plus.
  • Must be able to work as a key member of the design team with Power Design Engineers, Digital and Analog Engineers, System Engineers, Control System Engineers and Mechanical Engineers
  • Knowledge of Python or C-Sharp is beneficial.

In compliance with pay transparency requirements, the salary range for this role for California is $122,500- 177,500. This is not a guarantee of compensation or salary, as final offer amount may vary based on factors including but not limited to experience and geographic location. L3Harris also offers a variety of benefits, including health and disability insurance, 401(k) match, flexible spending accounts, EAP, education assistance, parental leave, paid time off, and company-paid holidays. The specific programs and options available to an employee may vary depending on date of hire, schedule type, and the applicability of collective bargaining agreements.

#LI-RTC1

L3Harris Technologies is proud to be an Equal Opportunity Employer. L3Harris is committed to treating all employees and applicants for employment with respect and dignity and maintaining a workplace that is free from unlawful discrimination. All applicants will be considered for employment without regard to race, color, religion, age, national origin, ancestry, ethnicity, gender (including pregnancy, childbirth, breastfeeding or other related medical conditions), gender identity, gender expression, sexual orientation, marital status, veteran status, disability, genetic information, citizenship status, characteristic or membership in any other group protected by federal, state or local laws. L3Harris maintains a drug-free workplace and performs pre-employment substance abuse testing and background checks, where permitted by law.

Please be aware many of our positions require the ability to obtain a security clearance. Security clearances may only be granted to U.S. citizens. In addition, applicants who accept a conditional offer of employment may be subject to government security investigation(s) and must meet eligibility requirements for access to classified information.

By submitting your resume for this position, you understand and agree that L3Harris Technologies may share your resume, as well as any other related personal information or documentation you provide, with its subsidiaries and affiliated companies for the purpose of considering you for other available positions.

L3Harris Technologies is an E-Verify Employer. Please click here for the E-Verify Poster in English or Spanish. For information regarding your Right To Work, please click here for English or Spanish.