Principal Platform Engineer
Confirmed on the employer's own hiring board on Oct 20, 2026. First seen by Alion on Oct 14, 2026.
Fidelity will not provide immigration sponsorship for this position.
Job Description:
Elumine is seeking a Principal Platform Engineer to join our team, building a new GenAI products for investment research.
Elumine is an early-stage GenAI startup, and is part of Fidelity Labs, our in-house new business incubator. In this role, you will be responsible for working across the Data Science, Engineering, and Product teams to build modern scalable cloud infrastructure solutions for deploying applications. You will also contribute to architecting and engineering the application microservices.
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.
Key Responsibilities:
- 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
Required Skills & Experience:
- 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
- Prior work in a startup or incubator environment, building products from the ground up.
The Team
We are Fidelity Labs, Fidelity Investments’ in-house fintech incubator with a mission to build new businesses to drive growth for Fidelity. We seek to shape the future of our industry by building new products and services to improve the lives of the diverse set of customers, businesses, and financial institutions we serve.
Fidelity Labs is a dynamic workplace that combines the best parts of startup life-building from scratch, adapting quickly, and moon-shot ambition-with the scale and stability of an industry leader. We provide a safe space for startup teams to explore new business ideas, quickly test them with customers, and scale the most promising concepts within an existing business unit, or as a new venture.
This opportunity is brought to you by Fidelity Labs. Learn more at labs.fidelity.com.
Fidelity’s Onsite Working Model
Fidelity is transitioning to a full-time onsite working model through a phased rollout across regions and roles. Currently, some roles and locations require 100% onsite presence, while others require less. Onsite expectations are likely to evolve as the rollout continues. This transition does not apply to fully remote roles.
The base salary range for this position is $107,000-216,000 USD per year.Placement in the range will vary based on job responsibilities and scope, geographic location, candidate’s relevant experience, and other factors.
Base salary is only part of the total compensation package. Depending on the position and eligibility requirements, the offer package may also include bonus or other variable compensation.
We offer a wide range of benefits to meet your evolving needs and help you live your best life at work and at home. These benefits include comprehensive health care coverage and emotional well-being support, market-leading retirement, generous paid time off and parental leave, charitable giving employee match program, and educational assistance including student loan repayment, tuition reimbursement, and learning resources to develop your career. Note, the application window closes when the position is filled or unposted.
Please be advised that Fidelity’s business is governed by the provisions of the Securities Exchange Act of 1934, the Investment Advisers Act of 1940, the Investment Company Act of 1940, ERISA, numerous state laws governing securities, investment and retirement-related financial activities and the rules and regulations of numerous self-regulatory organizations, including FINRA, among others. Those laws and regulations may restrict Fidelity from hiring and/or associating with individuals with certain Criminal Histories.