Senior Software Engineer

MastercardO’Fallon, MO
$115,000 - $184,000

About The Position

We are seeking a Senior Software Engineer to join our File Transfer platform team, responsible for building and operating mission‑critical, highly available services that support secure, large‑scale data movement across global environments. This role is hands‑on and requires deep expertise in Java and Spring‑based platforms, strong engineering ownership, and the ability to collaborate effectively with distributed teams in an agile delivery model.

Requirements

  • Strong written and verbal communication skills, with the ability to clearly articulate technical concepts and collaborate across functions.
  • Hands‑on experience building backend platforms using Java and Spring (Spring Boot preferred).
  • Knowledge working with event driven platforms, such as Apache KAFKA, RabbitMQ, NATS, or other equivalents.
  • Experience working with Cloud Services, such as AWS, GCP, Azure, or PCF.
  • Proven experience developing and operating mission‑critical, highly available systems in production environments.
  • Strong understanding of distributed systems, including scalability, fault tolerance, concurrency, and performance tuning.
  • Experience working with global, geographically distributed teams.
  • Solid experience working in an agile (Scrum / SAFe) environment.
  • Demonstrate a sense of ownership and accountability for delivered software and operational outcomes.

Responsibilities

  • Design, build, and maintain highly available, resilient Java Spring‑based services supporting enterprise‑grade file transfer workloads.
  • Contribute to the end‑to‑end lifecycle of platform capabilities, from design and development through production support and continuous improvement.
  • Build systems with a strong focus on reliability, scalability, security, and performance, suitable for mission‑critical environments.
  • Partner with global engineering, SRE, product, and operations teams to deliver features and resolve complex production issues.
  • Drive engineering best practices, including code quality, automated testing, CI/CD, and operational readiness.
  • Participate actively in agile ceremonies (sprint planning, reviews, retrospectives) and contribute to continuous delivery.
  • Support platform observability, incident analysis, and post‑incident improvements to reduce operational risk.
  • Mentor junior engineers and contribute to a culture of technical excellence and ownership.

Benefits

  • 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
  • annual bonus or commissions depending on the role
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