> Markdown version of [/jobs/ext/4252926-senior-site-reliability-engineer](https://www.wearedevelopers.com/jobs/ext/4252926-senior-site-reliability-engineer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Senior Site Reliability Engineer - **Company:** Radley James - **Location:** Mundelein, IL, United States - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** Algorithmic Trading, Amazon Web Services, Amazon Elastic Compute Cloud, Amazon S3, Cloud Computing, Computer Programming, Continuous Integration, DevOps, Distributed Systems, Fault Tolerance, Identity and Access Management, Python (Programming Language), Reliability Engineering, Scripting, Cloud Platform System, System Availability, Amazon Virtual Private Cloud (VPC), Amazon Relational Database Service, Kubernetes, Route53, Cloudwatch, Terraform - **Published:** October 27, 2026 - **Apply:** https://www.thejobnetwork.com/job/9c99dab2-08b8-4737-942f-bf3749a017ed/senior-site-reliability-engineer ## About the Role The ideal candidate will have a strong background in Site Reliability Engineering, DevOps and cloud infrastructure, with significant hands-on experience working with AWS., * 5+ years' experience in SRE, DevOps, Platform Engineering or a similar infrastructure-focused role. \n * Strong, hands-on AWS experience in production. \n * Excellent understanding of AWS services such as EC2, EKS/ECS, S3, IAM, VPC, CloudWatch, RDS and Route 53. \n * Strong Linux/Unix administration and troubleshooting skills. \n * Experience with Infrastructure as Code, ideally Terraform. \n * Strong scripting/programming ability with Python. \n * Experience with Kubernetes and containerised environments. \n * Strong understanding of CI/CD principles and tooling. \n * A strong understanding of networking, security and distributed systems. \n * Proven experience managing production incidents and conducting root-cause analysis. \n * Experience building systems with high availability, resilience and fault tolerance in mind. \n ## Description This is a critical role where reliability, performance, automation and operational excellence are essential. You will work closely with software engineers, infrastructure teams and traders to build and maintain highly available, resilient and scalable platforms supporting time-sensitive trading systems.