Senior Platform Engineer

Responsibilities

Platform and Cloud Infrastructure

• Own and evolve AWS infrastructure across compute, networking, storage, and managed services.
• Design and maintain highly available infrastructure with predictable performance and financial correctness.
• Lead platform architecture decisions, service migrations, and runtime changes, such as Redis to Valkey and EKS to ECS/Fargate.
• Balance reliability, cost, and operational simplicity when making infrastructure decisions.

Deployment, Reliability, and Operations

• Design and maintain safe, repeatable, and observable deployment pipelines.
• Own reliability through capacity planning, failure modeling, and controlled change management.
• Lead incident response and root-cause analysis for infrastructure failures.
• Participate in on-call rotations and improve operational processes.

Observability, Security, and Governance

• Build and maintain observability across infrastructure and services, including metrics, logs, tracing, and alerting.
• Secure AWS resources through appropriate IAM policies, secrets management, and network boundaries.
• Identify and address infrastructure risks involving scale, cost, and security.

Technical Leadership and Collaboration

• Partner with application engineers to communicate platform capabilities and constraints.
• Implement infrastructure changes hands-on.
• Establish infrastructure, deployment, and operations standards as the team grows.
• Mentor platform engineers and improve organizational operational maturity.

Requirements

• 8+ years of experience building and operating production infrastructure in cloud environments.
• Deep experience with AWS core services, including EC2, ECS/EKS, VPC, IAM, RDS, ElastiCache, ALB/NLB, and CloudWatch.
• Strong understanding of containerized workloads and orchestration tradeoffs.
• Experience designing systems for high availability, fault tolerance, and controlled failure.
• Hands-on infrastructure-as-code experience with Terraform, CloudFormation, or an equivalent tool.
• Experience planning and executing infrastructure migrations safely.
• Experience debugging production incidents involving networking, scaling, or service degradation.

Nice-to-haves

• Experience operating infrastructure for financial systems or other high-reliability domains.
• Experience scaling infrastructure during periods of rapid growth.
• Strong observability and operational hygiene practices informed by past incidents.
• Experience simplifying, retiring, or rearchitecting over-engineered infrastructure.
• Comfort working with a Rails-based application stack while remaining tool-agnostic.

Compensation and Benefits

• Salary: $190,000–$200,000, depending on experience, plus benefits.
• Generous paid time off and company holidays.
• Company-paid short-term disability.
• Employer-covered health and dental insurance for direct employees; higher-tier and dependent coverage may involve additional employee cost.
• Vision plan available at additional employee cost.
• Child care benefits and parental leave.