Lead Cloud Platform Engineer (Data & Execution Platform)

Fidelity•Merrimack, NH

5d•Onsite

About The Position

We are seeking a hands-on Lead Cloud Platform Engineer to implement, scale, and operate cloud-native infrastructure and services that power large-scale data processing systems. This role focuses on translating defined architectures into production-grade platforms that are reliable, observable, secure, and performant. You will lead the implementation and operation of a modern execution platform built on Apache Spark for distributed compute and an Airflow orchestration layer and DAG execution environment. The ideal candidate brings deep production experience in Spark and Airflow, and excels at troubleshooting, tuning, and operationalizing distributed systems in AWS environments, while leveraging modern developer productivity tools such as AI-assisted coding and LLM-based workflows.

Requirements

Strong understanding of distributed systems (fault tolerance, scalability, consistency
Expertise in Apache Spark (tuning, debugging, optimization)
Expertise in Apache Airflow (DAG execution, orchestration, troubleshooting)
Strong experience operating Kubernetes (EKS preferred) including cluster scaling and lifecycle management
Hands-on management of node groups, autoscaling, and capacity planning
Deep understanding of Kubernetes networking and security (security groups, network policies, ingress/egress)
Experience with Kubernetes resources (Deployments, StatefulSets, Jobs, CronJobs)
Familiarity with Custom Resources (CRDs) and advanced configuration via annotations and labels
Experience monitoring Kubernetes clusters (metrics, logs, events) and integrating with observability tools
Troubleshooting Kubernetes workloads (scheduling failures, resource contention, networking issues)
Experience with AWS services and cloud-native design patterns
Proficiency in Python, Java, or Go
Experience with Docker and Kubernetes
Hands-on observability (metrics, logging, tracing)
Experience with SLI/SLO-based reliability models
Practical experience using AI-assisted development tools (e.g., GitHub Copilot, LLMs) to improve code quality, debugging, and productivity
Networking fundamentals (DNS, TCP/IP, TLS, VPC design)
Strong troubleshooting and performance tuning skills
Strong communication and leadership skills
Bachelor’s or Master’s degree in Computer Science or related field (or equivalent experience)
8 plus years in software, platform, or cloud engineering roles
Experience operating large-scale distributed systems in production
Strong experience with AWS cloud platforms
Mandatory hands-on experience with Apache Spark and Apache Airflow in production
Experience supporting ETL, data platforms, or workflow execution systems at scale

Responsibilities

Implement and operate cloud-native platform services for distributed data systems
Scale fault-tolerant, high-throughput systems aligned with architectural patterns
Own Spark data pipelines and Airflow orchestration layer and DAG execution
Tune Spark workloads (partitioning, memory, execution plans, shuffle optimization)
Troubleshoot Spark jobs and Airflow DAGs across performance and failures
Operate and optimize Kubernetes-based execution environments, including node group scaling, workload placement, and resource utilization
Troubleshoot Kubernetes infrastructure and workload issues, including scheduling, networking, and runtime performance
Leverage developer productivity tools (e.g., GitHub Copilot, LLMs) to accelerate development, debugging, and operational workflows.
Drive operational excellence including monitoring, incident response, and RCA
Implement observability (metrics, logging, tracing, dashboards, alerting)
Define and manage SLIs/SLOs for platform reliability
Deploy solutions using AWS services (EKS, EC2, S3, Lambda, RDS, etc.)
Implement secure networking (VPCs, IAM, subnets, load balancing)
Maintain CI/CD pipelines and deployment automation
Lead execution across planning, delivery, and cross-team coordination
Mentor engineers and promote reliability and scalability best practices