Staff Software Engineer / Architect – Java Modernization (AWS / Kubernetes)

Position Title: Staff Software Engineer / Architect – Java Modernization (AWS / Kubernetes) Location: St. Louis, MO JD We are looking for a staff‐level software engineer / architect to lead the modernization of a largescale, mission‐critical Java platform. This role is hands‐on and focused on rewriting and re‐architecting existing systems using modern Java, Spring Boot, and cloud‐native patterns on AWS. What You'll Do Modernize a legacy Java platform to Java 21 and Spring Boot Re‐architect monolithic components into well‐structured, cloud‐native services Design and build services for AWS EKS and/or OpenShift Define execution models, service boundaries, and deployment patterns Drive architectural decisions around performance, scalability, and reliability Work closely with platform, DevOps, and cloud infrastructure teams Mentor senior engineers and set engineering standards Own solutions end‐to‐end — from design through production What We're Looking For Staff‐level experience building and modernizing large Java systems Strong hands‐on experience with Java (17+ preferred, 21 ideal) and Spring Boot Deep understanding of distributed systems and system design Practical experience deploying applications on AWS, preferably EKS Solid Kubernetes knowledge (EKS and/or OpenShift) Experience containerizing applications and running them on a scale Strong grasp of performance tuning, JVM behavior, and low‐latency systems Ability to operate as both architect and hands‐on engineer Nice to Have Experience migrating from monoliths to cloud‐native architectures Exposure to eventing, messaging, or streaming systems (Kafka, MQ, etc.) Familiarity with CI/CD pipelines and infrastructure‐as‐code Background in financial services, payments, or high‐throughput systems Why This Role Opportunity to shape the future architecture of a critical platform Work on complex, high‐scale systems where design decisions matter High ownership, real technical impact, and long‐term relevance "Tech Mahindra is an Equal Employment Opportunity employer. We promote and support a diverse workforce at all levels of the company. All qualified applicants will receive consideration for employment without regard to race, religion, color, sex, age, national origin or disability. All applicants will be evaluated solely on the basis of their ability, competence, and performance of the essential functions of their positions with or without reasonable accommodations. Reasonable accommodations also are available in the hiring process for applicants with disabilities. Candidates can request a reasonable accommodation by contacting the company ADA Coordinator at ADA_Accomodations@TechMahindra.com."