Senior Software Developer - AWS Microservices & Security

Eliassen Group; St. Louis (MO); Hybrid; Confidential; Full time

Benefits offered by this job

Medical

Dental

Vision benefits

401k with company matching

life insurance

Job summary

Eliassen Group seeks a Senior Software Developer to modernize and maintain a mission-critical enterprise application in AWS for the U.S. Treasury. The role spans full‑stack Java/Spring Boot with Angular/TypeScript front ends, focusing on security remediation, cloud-native patterns, and robust test automation.

The position is hybrid in St. Louis, MO, requiring 2-3 days on-site. Rate ranges from $100.00 to $125.00 per hour on a W2 basis, with comprehensive benefits and cross‑team collaboration

Qualifications

• 5+ years of software engineering experience.
• Proven AWS experience with ECS/EKS, Lambda, RDS/Aurora, and IaC via CDK or CloudFormation.
• Strong Java, Spring Boot, Spring Cloud, and Hibernate experience with Tomcat.
• Strong Angular and TypeScript experience; micro-frontend architecture is a plus.
• Microservices architecture experience including strangler pattern for legacy modernization.
• Experience with observability tools such as CloudWatch, Grafana, OpenSearch.
• US citizenship required for FedRAMP High environment.

Responsibilities

• Design and implement microservices using Java/Spring Boot and TypeScript for event-driven and RESTful integrations.
• Upgrade and modernize Angular applications and support micro-frontend approaches.
• Build cloud solutions using AWS services including ECS/EKS, Lambda, EventBridge, and RDS.
• Remediate technical debt by upgrading dependencies and frameworks.
• Ensure comprehensive test automation and maintain technical documentation.
• Implement security best practices aligned to FRB System and U.S. Treasury guidelines, including vulnerability scanning and remediation.
• Coordinate with DevOps, InfoSec, Program Management, and multiple scrum teams.
• Communicate status, risks, and blockers to stakeholders.

Skills

Java

Spring Boot

Angular

TypeScript

Microservices

AWS

Security remediation

Test automation

Cross-team collaboration

Tools

AWS ECS

AWS EKS

Lambda

EventBridge

RDS/Aurora

CDK

CloudFormation

OpenSearch

Grafana

CloudWatch

Tomcat

Hibernate

Job description

Eliassen Group seeks a Senior Software Developer to modernize and maintain a mission-critical enterprise application in AWS for the U.S. Treasury. The role spans full‑stack Java/Spring Boot with Angular/TypeScript front ends, focusing on security remediation, cloud-native patterns, and robust test automation.

The position is hybrid in St. Louis, MO, requiring 2-3 days on-site. Rate ranges from $100.00 to $125.00 per hour on a W2 basis, with comprehensive benefits and cross‑team collaboration