Senior Software Engineer
Mastercard · O'Fallon, MO · Yesterday
Hybrid$115k–$184k/yrFull-time
About The Role
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.
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.
Qualifications
- 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.
Pay
O'Fallon, Missouri: $115,000 - $184,000 USD