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Senior Engineer, Site Reliability Engineering

Company:
47 Technology/IT
Location:
Chicago, IL
Posted:
May 22, 2025
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Description:

Job overview and responsibilities

As a Sr. Engineer, you will be a self-starter who is seen as a technical expert in Site Reliability Engineering, responsible for the day-to-day performance and availability of enterprise applications used across United’s businesses. This will be accomplished with a combination of general application/environment understanding and the use of analytics and automation tools provided to you for both cloud and on-premises. You will also participate in a 24x7 on-call rotation and be accountable for all aspects of IT Service Delivery, including incident, problem, and change management and ensure adherence to these processes, from coding to scaling applications, performance tuning and post-mortem analysis. Lastly, as the Sr. Engineer, you will drive thought leadership and function as an interim leader in the absence of the Sr. Manager, partnering with DevOps teams to define and implement observability and monitoring practices during the SDLC.

Collaborate proactively with interdisciplinary teams across the IT department to identify and mitigate unplanned application downtime and engage in thorough root cause analysis post-outage, improving system designs for automated troubleshooting

Partner with Application Development and DevOps teams to continuously refine application instrumentation in order to maximize reliability and availability, enforcing best practices and enhancing system optimization

Continuously build upon knowledge of the assigned portfolio of applications to understand architecture, usage patterns, performance trends, outages, and business impact, creating strategies to proactively identify and report application performance problems and failures, detecting and preventing issues to mitigate operational risks

Continuously monitor the production environment availability and take a holistic view of system health, service performance and availability, including real user monitoring, logging, distributed tracing and alerting for cloud and on-premise systems

Engage with project teams to guarantee that operational monitoring and instrumentation requirements are addressed by defining and implementing SLI, SLO and SLA during application deployment

Develop expert-level knowledge of SRE and Observability toolsets to maintain and enhance our Observability practices and solutions, implementing proactive self-healing capabilities to avoid real user impact

Serves as mentor to other team members to provide support and guidance in performing core functions, and in championing the adoption of SRE practices

What’s needed to succeed (Minimum Qualifications):

Bahcelor's degree in information technology, Computer Science, or relevant field

4+ years in an IT organization with experience in end user technical support or systems administration

4+ years of experience with ITIL Service Management, SRE practices or Observability solutions for cloud in a medium to large IT organization

3+ years of experience with DevOps in a medium to large IT organization

2+ years of proven experience using Dynatrace, DQL and large enterprise experience is a plus

1-2 years of experience leading small projects or teams

Experience with distributed storage technologies such as EC2 (Elastic Compute Cloud), S3 (Simple Storage Service), RDS (Relational Database Service), VPC (Virtual Private Cloud), Lambda, and CloudFormation

Proficiency with dynamic resource management frameworks (Kubernetes, Yarn)

Experience with AWS networking services like VPC, Route 53, and CloudFront, with understanding of cloud concepts like IaaS, PaaS, and SaaS

Ability to diagnose and troubleshoot issues effectively

Proficiency with DevOps practices and tools (CI/CD pipelines, Jenkins)

Ability to code (structured and OOP) using one or more high-level languages, such as Python, Java, C# or JavaScript

Understanding of API management and integration services like API Gateway, and experience with RESTful and SOAP APIs

Dynatrace Associate Certification or AWS Certified DevOps Engineer required

Must be legally authorized to work in the United States for any employer without sponsorship

Successful completion of interview required to meet job qualification

Reliable, punctual attendance is an essential function of the position

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