Location
O'Fallon, Missouri
Job Type
Full-time
Posted
May 15, 2026
Job Description
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
M...
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
M...
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