Senior Software Engineer (Cloud-Native Microservices) - Hybrid

Apex Systems; St. Louis (MO); Hybrid; USD 120,000 - 160,000; Full time

Job summary

Everforth Apex Systems seeks a Senior Software Engineer (Contract) to join a team modernizing large-scale financial applications. Location in St. Louis, hybrid with 4 days onsite; remote consideration based on experience.

You will design, develop, and maintain microservices in Java/Spring Boot and TypeScript within AWS environments, contributing to modernization and new features. The role requires 5+ years hands-on software development, strong Java/Spring Boot, microservices, and cloud-native

Qualifications

• 5+ years of hands-on software engineering experience.
• Strong Java and Spring Boot background.
• Experience building microservices-based applications.
• Exposure to AWS services (EKS, ECS, Lambda, RDS).
• Front-end experience with Angular and TypeScript.
• Strong problem-solving, communication, and technical documentation skills.
• Experience working within Agile delivery teams.

Responsibilities

• Design, develop, and maintain microservices using Java, Spring Boot, and TypeScript.
• Build and enhance cloud-native applications deployed within AWS environments.
• Contribute to modernization efforts and new feature development.
• Partner with architects and Agile teams to translate requirements into scalable solutions.
• Participate in code reviews, architecture discussions, and engineering best practices.
• Improve application quality through automated testing, CI/CD, and refactoring.
• Troubleshoot production issues, optimize performance, and support critical business applications.
• Help drive adoption of emerging technologies and AI-assisted development tools.

Skills

Problem solving

Communication

Technical documentation

Agile delivery

Tools

Java

Spring Boot

TypeScript

Angular

AWS

Microservices

REST APIs

GitLab CI/CD

Test Automation

Cloud-Native Architecture

Job description

Everforth Apex Systems seeks a Senior Software Engineer (Contract) to join a team modernizing large-scale financial applications. Location in St. Louis, hybrid with 4 days onsite; remote consideration based on experience.

You will design, develop, and maintain microservices in Java/Spring Boot and TypeScript within AWS environments, contributing to modernization and new features. The role requires 5+ years hands-on software development, strong Java/Spring Boot, microservices, and cloud-native