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# Principal Platform Engineer

- **Company:** Fmr LLC
- **Location:** Boston, MA, United States (Remote available)
- **Experience:** Expert
- **Salary:** $107,000.0 - $216,000.0
- **Contract:** Permanent contract
- **Skills:** Artificial Intelligence, Amazon Web Services, Application Services, Automation of Tests, Microsoft Azure, Bash Shell, Cloud Computing, Cloud Engineering, DevOps, Disaster Recovery, Distributed Systems, Domain Name System (DNS), Github, Monitoring of Systems, Python (Programming Language), Linux System Administration, Windows PowerShell, Reliability Engineering, Prometheus, TypeScript, Datadog, AWS Cdk, Scripting, Load Balancing, Grafana, Generative AI, Cloudformation, Fastapi, Containerization, Gitlab-ci, Kubernetes, Infrastructure Automation Frameworks, Cloudwatch, Terraform, Docker, Jenkins
- **Published:** October 17, 2026
- **Apply:** https://www.themuse.com/jobs/fidelityinvestments/principal-platform-engineer

## About the Role

* 6+ years of Cloud Engineering, Site Reliability Engineering or DevOps experience with AWS including compute, storage, networking, and managed services

 * Proficiency with Infrastructure as Code tools (AWS CDK, Terraform, CloudFormation) and scripting languages (TypeScript for CDK, Python, Bash, PowerShell)

 * Strong understanding of cloud networking, security groups, VPCs, load balancers, and DNS management

 * Experience building and maintaining CI/CD pipelines using Jenkins, GitLab CI, GitHub Actions, or Azure DevOps

 * Knowledge of monitoring and observability tools (Prometheus, Grafana, Datadog, CloudWatch) and incident management practices

 * Strong Linux system administration skills and containerization experience (ECS, Docker, Kubernetes)

 * Excellent problem-solving skills with ability to troubleshoot complex distributed systems and work independently

Bonus Points:

 * Experience in Python / FastAPI development is preferred

 * Prior experience developing Gen AI applications

## Description

As a Principal Platform Engineer, you will play a pivotal role in building new capabilities that provide AI powered search, retrieval, and analytics. You will work closely with the Director of Engineering and cross-functional teams, driving technical decisions and ensuring the delivery of scalable, maintainable solutions., * Implement and manage containerized applications using EKS, Docker, and Kubernetes with focus on reliability and performance

 * Design and maintain highly available cloud infrastructure using Infrastructure as Code (AWS CDK, Terraform, CloudFormation)

 * Build and optimize CI/CD pipelines for automated testing, deployment, and monitoring of applications

 * Monitor system performance, availability, and security across all environments using observability tools

 * Automate operational tasks, implement backup/disaster recovery procedures, and establish SLAs/SLOs

 * Participate in on-call rotation, incident response, and post-mortem analysis to drive continuous improvement

 * Contribute to FastAPI/Python based engineering and development of new application services