Senior Platform Engineer
Cox Automotive2 months ago
Responsibilities
- Design, implement, and optimize the central AI Gateway MCP server using FastAPI and uvicorn.
- Build the Redis ElastiCache session layer with identity binding, role-resolved tool sets, token lifecycle management, quotas, and distributed rate limiting.
- Implement on-demand connector provisioning with ephemeral containers, VPC-internal networking, and AWS Secrets Manager credential retrieval.
- Develop MCP connectors for Oracle DB, SharePoint Graph API, Rally, ServiceNow, and other enterprise systems.
- Build automated unit, integration, load, and chaos testing for high-concurrency and fault-tolerant platform operation.
- Maintain observability using structured logging, Prometheus metrics, Kinesis Firehose, OpenSearch, and Grafana dashboards.
- Design CI/CD pipelines with GitHub Actions, automated image builds, ECS task updates, and blue/green deployments.
- Own Entra OIDC validation, PII masking, WAF rules, secrets autorotation, and OWASP-aligned API security controls.
- Maintain the Snowflake MCP codebase, including session management, RBAC, PII masking, configuration, and secrets modules.
- Develop production troubleshooting tools and create documentation, runbooks, and operational playbooks.
Requirements
- Bachelor’s degree in a related discipline and 4 years of related experience, or equivalent combinations including a master’s degree with 2 years, a Ph.D. with up to 1 year, or 16 years of related experience.
- At least 4 years of Python development experience with advanced async/await, FastAPI, multiprocessing, and production performance optimization.
- Hands-on Model Context Protocol experience covering MCP servers, tool definitions, and client integration patterns.
- Deep AWS experience with ECS Fargate, ElastiCache Redis, Secrets Manager, Route 53, ALB, ECR, Aurora PostgreSQL, SSM Parameter Store, CloudWatch, and Kinesis Firehose.
- Microsoft Entra ID/Azure AD integration experience with OIDC federation, Graph API or JWT claims, and RBAC implementation.
- Database integration and optimization experience with Oracle, PostgreSQL, Snowflake, and SQL Server.
- Knowledge of distributed-systems patterns including circuit breakers, exponential-backoff retries, bulkhead isolation, Redis-backed state, and graceful degradation.
- Experience with Docker multi-stage builds, ECS task definitions, non-root container security, and health endpoints.
- Experience implementing JWT validation, rate limiting, input validation, PII detection, and masking.
- Observability experience with structured JSON logging, Prometheus instrumentation, distributed tracing concepts, and CloudWatch Logs Insights.
- Git and GitHub Actions experience with automated testing pipelines.
- Availability for rotational on-call duties outside standard business hours may be required.
- Preferred qualifications include enterprise-scale concurrent MCP systems, Snowflake optimization, Terraform, ephemeral infrastructure provisioning, advanced Redis patterns, audit logging, data governance, OWASP remediation, AI/LLM platforms, Anthropic Claude, Claude.ai, Claude Code, Copilot Studio, and DevOps automation.
Benefits
- Rotational on-call duties outside standard business hours may be required.
- The role offers work on a novel enterprise AI integration platform at the intersection of infrastructure engineering and Model Context Protocol.
Tech Stack
About Cox Automotive
Cox Automotive is the world’s largest automotive services and technology provider. Fueled by the largest breadth of first- and third-party data fed by 2.3 billion online interactions a year, Cox Automotive tailors leading solutions for car shoppers, auto manufacturers, dealers, lenders and fleets. The company has 29,000+ employees on four continents and a portfolio of industry-leading brands that include Autotrader®, Kelley Blue Book®, Manheim®, vAuto®, Dealertrack®, NextGear Capital™, CentralDispatch® and Cox Fleet®. Cox Automotive is a subsidiary of Cox Enterprises Inc., a privately owned, Atlanta-based company with $23 billion in annual revenue. Cox Automotive has been included on Glassdoor’s Best Companies in Tech & AI 2026 and Best Place to Work in 2026 lists.