Jobs / United States / Mastercard International Incorporated
Senior Software Engineer - Java Full Stack & AI
Mastercard International Incorporated · 🇺🇸 O'Fallon, Missouri
Sponsorship verdict
Sponsorship possible
One solid signal, not two — worth applying, and worth asking about sponsorship early.
- Employer is on a government sponsor recordThe US Department of Labor certified 76 H-1B/E-3 labor condition applications for this employer between Oct 2025 and Jun 2026 (latest Jun 2026) — the step every H-1B hire needs first. USCIS also records 286 H-1B approvals in FY2023. Source: LCA disclosure data (US Department of Labor (OFLC)).
- The posting doesn’t mention sponsorshipSilence isn’t a refusal — ask the recruiter before investing much time.
- No salary bar for this routeH-1B has no fixed salary bar: the employer must pay at least the prevailing wage for the role and area. Cap-subject employers enter a lottery weighted by wage level. Source: https://www.federalregister.gov/documents/2025/12/29/2025-23853/weighted-selection-process-for-registrants-and-petitioners-seeking-to-file-cap-subject-h-1b, rules effective 2026-02-27.
- What Mastercard International Incorporated paid sponsored hires in similar roles10 certified filings for “Senior Software Engineer” (Software Developers) in MO: $115k–$138k, median $127k. Most were filed at wage level II (50%) — 2 lottery entries, ≈31% projected selection odds for cap-subject employers. Source: US Department of Labor LCA disclosure data (Oct 2025 – Jun 2026).
- Confirmed live todayWhen a source last listed this job as open.
US H-1B: cap-subject employers enter a lottery weighted by wage level — Level I gets 1 entry, Level IV gets 4 (DHS projected selection odds ≈15% at Level I to ≈61% at Level IV). Universities and non-profit research employers are cap-exempt. The $100,000 fee for new petitions from abroad is currently blocked by a court order (appeal pending).
A verdict summarises public evidence; it is not legal advice and never a guarantee — the employer and the immigration authority decide. Sign in to factor in where you can already work.
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Sponsor Radar — Mastercard International Incorporated
The US Department of Labor certified 76 H-1B/E-3 labor condition applications for this employer between Oct 2025 and Jun 2026 (latest Jun 2026) — the step every H-1B hire needs first. USCIS also records 286 H-1B approvals in FY2023. Source: LCA disclosure data (US Department of Labor (OFLC)).
Past sponsorship or register membership never guarantees sponsorship for this vacancy or for you. Full Sponsor Radar for Mastercard International Incorporated →
About the role
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 - Java Full Stack & AI Overview The Decision Services Technology team within Mastercard's Business & Market Insights organization develops analytics, reporting, and intelligence solutions that help customers investigate transactions, identify fraud patterns, and make informed business decisions. As part of a rapidly growing product area, the team is investing heavily in AI-powered capabilities that automate manual analysis and improve customer outcomes. Supporting a product with significant growth and a multi-year roadmap, engineers on this team play a key role in developing, enhancing, and scaling innovative solutions across full-stack, cloud, data, and AI technologies. As a Senior Software Engineer, you will independently deliver complex solutions, influence technical design decisions, and help drive engineering excellence across the platform. This role requires deep technical expertise, strong ownership, and the ability to mentor other engineers while operating with minimal guidance. What You'll Do Software Development •Design, develop, test, deploy, and support complex software solutions. •Build scalable APIs, backend services, and modern web applications. •Utilize Java, Spring Boot, React or Angular, and Python across the technology stack. •Lead implementation efforts for AI-enabled capabilities and automation initiatives. •Drive technical solutions from requirements through deployment. Design & Architecture •Contribute to architecture decisions and system design discussions. •Apply architectural patterns that support scalability, reliability, and maintainability. •Guide technical implementation across distributed and cloud-based systems. •Support integration of AI and machine learning capabilities into business products. Quality & Operational Excellence •Champion testing, secure coding, and code quality standards. •Conduct code reviews and mentor engineers through technical feedback. •Lead troubleshooting efforts and root-cause analysis for complex issues. •Improve observability, automation, performance, and operational readiness. •Drive continuous improvement initiatives across the engineering lifecycle. Collaboration & Leadership •Partner closely with Product, Architecture, and Engineering leadership. •Serve as a technical mentor for less experienced engineers. •Influence technical direction and engineering best practices. •Contribute to Agile planning, estimation, and delivery leadership. Required Qualifications •Bachelor's degree in Computer Science, Engineering, Information Technology, or a related field, or equivalent experience. •6+ years developing enterprise software solutions. •Advanced proficiency in Java 8+ and Spring Boot. •Deep understanding of REST APIs, microservices, and distributed systems. •Strong knowledge of React, Angular, or comparable frontend frameworks. •Expertise in Oracle or SQL-based database development. •Familiarity with CI/CD practices and modern engineering workflows. •Knowledge of Python for AI, automation, and data-driven applications. •Exposure to GitHub Copilot or similar AI-assisted development tools. •Strong troubleshooting, debugging, and analytical capabilities. •Ability to independently deliver complex technical solutions with minim