Senior SRE & Release Engineer — AWS, CI/CD

Sentior, Ltd.; St. Louis (MO); On-site; USD 83,000 - 165,000; Full time

Job summary

Sentior, Ltd. in St. Louis seeks a Senior Site Reliability / Release Engineer to optimize deployment pipelines and improve platform reliability. You will manage releases across multiple environments, automate deployments, and work with AWS, Java applications, and containers.

The role emphasizes performance engineering, monitoring, and cross-functional collaboration with Development, QA, and Operations teams. Expertise in Java, AWS, Docker, and Dynatrace is required.

Qualifications

• 4–8 years of experience in Site Reliability Engineering, Release Engineering, DevOps, or a similar role.
• Hands-on experience with Amazon Web Services (AWS) and cloud-based application deployments.
• Strong experience supporting and deploying Java-based applications, preferably using Spring Boot.
• Experience with Docker and containerization technologies.
• Experience with Dynatrace or similar application performance monitoring tools.
• Proficiency in Python or other scripting languages such as Shell or Groovy.
• Strong understanding of CI/CD pipelines, deployment automation, and version control practices such as Gitflow.
• Experience with performance testing tools such as JMeter, LoadRunner, or BlazeMeter.
• Knowledge of application monitoring, scalability, and performance optimization.
• Experience debugging Java applications, including analyzing core, heap, and thread dumps.
• Familiarity with Jenkins, Chef Habitat, or similar CI/CD and automation tools.
• Experience deploying applications across cloud and on-premise environments. Azure and PCF experience are beneficial.
• Understanding of security practices and secure application deployment.

Responsibilities

• Automation & CI/CD: Design, develop, and maintain automated deployment pipelines and scripts to improve software delivery, consistency, and reliability.
• Release Management: Plan, coordinate, and execute application releases across multiple environments, ensuring smooth and timely deployments.
• Cloud & Infrastructure: Manage application deployments across AWS, Azure, on-premise virtual machines, and PCF.
• Performance Engineering: Conduct performance and load testing to identify bottlenecks, optimize application performance, and address scalability concerns.
• Monitoring & Observability: Configure and maintain monitoring solutions, dashboards, and alerts to proactively identify and resolve system issues.
• Platform Management: Coordinate platform upgrades, infrastructure changes, and application deployments while minimizing downtime.
• Troubleshooting: Perform root cause analysis, investigate production issues, and analyze Java core dumps, heap dumps, and thread dumps.
• Process Improvement: Identify opportunities to automate existing processes and improve release engineering and operational efficiency.
• Cross-Functional Collaboration: Partner with Development, QA, and Operations teams to resolve deployment, performance, and infrastructure challenges.
• Documentation: Maintain technical documentation covering deployment procedures, release processes, automation, and troubleshooting.

Skills

SRE

DevOps

AWS

Docker

Java

Python

CI/CD

JMeter

Dynatrace

Kubernetes

Education

Bachelor's degree in Computer Science or related field

Tools

Jenkins

PCF

Azure

Chef Habitat

Splunk

Job description

Sentior, Ltd. in St. Louis seeks a Senior Site Reliability / Release Engineer to optimize deployment pipelines and improve platform reliability. You will manage releases across multiple environments, automate deployments, and work with AWS, Java applications, and containers.

The role emphasizes performance engineering, monitoring, and cross-functional collaboration with Development, QA, and Operations teams. Expertise in Java, AWS, Docker, and Dynatrace is required.