Jobs in O Fallon, MO

Mastercard

O Fallon, MO

Listed on Mastercard’s careers site · Apply there ↗

Mastercard

O Fallon, MO

Listed on Mastercard’s careers site · Apply there ↗

Mastercard

Full-time · O Fallon, MO · $140,000 – $231,000

Mastercard is looking for an experienced developer to lead a team building and maintaining their Commercial Data Integration Platform, which uses Databricks to process data from Recorded Future and Mastercard sources. This role suits someone with a track record of technical leadership who can mentor engineers, ensure engineering excellence, and collaborate across organizational boundaries.

Listed on Mastercard’s careers site · Apply there ↗

Mastercard

Full-time · O Fallon, MO · $122,000 – $207,000

Lead a team of Site Reliability Engineers ensuring Mastercard's Java and Spring-based systems remain stable, scalable, and performant across global operations. This role suits experienced SREs who want to mentor others while driving automation, operational excellence, and a culture of reliability.

Listed on Mastercard’s careers site · Apply there ↗

Mastercard

Full-time · O Fallon, MO · $130,000 – $221,000

A technical product manager role leading the evolution of Mastercard's global credit card authorization platform, combining deep payments expertise with software architecture knowledge to drive real-time transaction systems at scale. Suited for experienced technical PMs from fintech or high-scale systems backgrounds who can bridge engineering and business strategy.

Listed on Mastercard’s careers site · Apply there ↗

Mastercard

Full-time · O Fallon, MO · $115,000 – $184,000

This role involves building enterprise applications using Java and modern front-end frameworks within Mastercard's payments technology division. It suits experienced full-stack developers comfortable with cloud architectures, database design, and cross-functional collaboration on complex financial systems.

Listed on Mastercard’s careers site · Apply there ↗

Mastercard

Full-time · O Fallon, MO · $152,000 – $258,000

Director leading global enterprise operations and workplace technology support across multiple regions, managing large hybrid teams and driving digital transformation of IT service delivery. Ideal for an operations leader with experience scaling support organizations and implementing modern workplace solutions at an international company.

Listed on Mastercard’s careers site · Apply there ↗

Mastercard

Full-time · O Fallon, MO · $130,000 – $221,000

This role oversees Mastercard's global interchange governance operations, managing processes, documentation, and cross-functional coordination to standardize how the company handles interchange requests and implementations. It's suited for someone with deep payments industry expertise who can operate independently while building influence across technical, pricing, and product teams.

Listed on Mastercard’s careers site · Apply there ↗

Mastercard

Full-time · O Fallon, MO · $189,000 – $312,000

A strategic leadership role managing transformation initiatives and portfolio governance for Mastercard's global business services organization. This suits experienced executives comfortable translating enterprise strategy into cross-functional execution plans and influencing at senior levels.

Listed on Mastercard’s careers site · Apply there ↗

Mastercard

Full-time · O Fallon, MO · $143,000 – $236,000

Lead project and program management for Finance's artificial intelligence initiatives, establishing governance structures and driving disciplined execution across complex, cross-functional transformation work. This role suits experienced transformation leaders who thrive navigating ambiguity, influencing senior stakeholders, and translating strategic priorities into measurable outcomes.

Listed on Mastercard’s careers site · Apply there ↗

Mastercard

O Fallon, MO

Listed on Mastercard’s careers site · Apply there ↗

Mastercard

Full-time · O Fallon, MO · $142,000 – $234,000

This Director-level role partners with technology leadership to manage financial planning, performance reporting, and strategic investments for Mastercard's global payments infrastructure. It suits experienced finance business partners comfortable advising senior technologists and managing complex budgets across distributed teams.

Listed on Mastercard’s careers site · Apply there ↗

Mastercard

Full-time · O Fallon, MO · $140,000 – $231,000

This is a management role overseeing AI quality and testing for Mastercard's generative AI and LLM systems, suited to engineers with deep expertise in production AI evaluation frameworks and the ability to lead testing strategy across complex AI workstreams.

Listed on Mastercard’s careers site · Apply there ↗

Mastercard

Full-time · O Fallon, MO · $96,000 – $163,000

A Senior Site Reliability Engineer focused on performance testing and optimization for Mastercard's payment systems, particularly the Automatic Billing Updater service. The role suits engineers with deep expertise in distributed systems, performance bottleneck analysis, and automation who want to apply that knowledge to high-scale financial infrastructure.

Listed on Mastercard’s careers site · Apply there ↗

Mastercard

Full-time · O Fallon, MO · $69,000 – $110,000

This role involves managing the accounting and financial reporting for technology-related spending at Mastercard, including capital asset lifecycle activities, compliance with accounting standards, and process improvement initiatives. It suits accountants with US GAAP knowledge who want to grow technical skills in system accounting and automation while supporting a global financial organization.

Listed on Mastercard’s careers site · Apply there ↗

Mastercard

Full-time · O Fallon, MO · $113,000 – $186,000

A project management leader for Mastercard's internal shared services organization, overseeing cross-functional transformation initiatives across finance, HR, and legal functions. This role suits experienced practitioners who can drive process improvements, manage stakeholder relationships globally, and report project progress to senior leadership.

Listed on Mastercard’s careers site · Apply there ↗

Mastercard

Full-time · O Fallon, MO · $122,000 – $207,000

This role leads the design and evolution of Mastercard's Workday enterprise platform, focusing on integrations, modern application development, and employee experience at global scale. It suits senior engineers with deep Workday expertise who can architect solutions, mentor teams, and drive platform modernization through emerging technologies.

Listed on Mastercard’s careers site · Apply there ↗

Mastercard

O Fallon, MO · $109,000 – $180,000

A leadership role managing treasury and foreign exchange accounting operations across Mastercard's global finance organization, reporting complex transactions, and supervising accounting staff. This position suits an experienced accountant with strong technical expertise in multinational treasury accounting and proven ability to work across finance functions.

Listed on Mastercard’s careers site · Apply there ↗

Mastercard

Full-time · O Fallon, MO · $112,000 – $179,000

A payroll leadership role managing the integration of acquired or divested companies into Mastercard's systems, ensuring compliance and operational continuity across multiple countries. This suits experienced payroll professionals with M&A project management background who can coordinate across technical teams and regional operations.

Listed on Mastercard’s careers site · Apply there ↗