Sr. Platform Engineer, Kubernetes

Comcast; West Chester (Chester County); On-site; USD 140,000 - 190,000; Full time

Job summary

Comcast in the United States is seeking a Sr. Platform Engineer to build, manage, and optimize the data processing infrastructure that powers large-scale workloads.

You will design systems for metrics collection with Prometheus and visualization with Grafana, ensuring scalable and cost-efficient Spark execution across Kubernetes and cloud services. You'll develop automation in Python/Scala, deploy Terraform/Ansible, and collaborate with data engineers and scientists to improve data catalogs like

Qualifications

• 7–10 years of relevant DevOps or Systems Engineering experience.
• Expertise in Apache Spark with deep understanding of its architecture.
• Proficiency in Python, PySpark, and Scala/Java.
• CI/CD experience with GitHub and automation tooling.
• Experience with Prometheus, Grafana for observability.
• Cloud and on-prem environments across AWS/Azure/GCP; Kubernetes/Docker.
• Terraform/Ansible for infrastructure as code.
• Networking knowledge and data lake governance.
• Familiar with Iceberg, Unity Catalog, Kafka, Hadoop, and storage like S3/HDFS.

Responsibilities

• Architect and manage Spark platforms on Kubernetes and AWS EKS.
• Package Spark workloads with Docker/Kubernetes and integrate with Flyte.
• Deploy infrastructure via Terraform/Ansible.
• Troubleshoot and optimize Spark configurations to reduce costs.
• Build automation in Python/Java/Scala and Bash.
• Write medium to complex SQL queries as needed.
• Implement monitoring/logging with Prometheus and Grafana.
• Develop and optimize data catalog platforms like Iceberg/Unity Catalog.
• Automate workflows and incident resolution.
• Collaborate with data engineers/scientists to address data needs.
• Engage with open-source communities and contribute improvements.
• Document Kubernetes infrastructure and provide team training.

Skills

Apache Spark

Python

Scala/Java

Linux scripting

Terraform/Ansible

Kubernetes

Docker

SQL

Prometheus

Grafana

CI/CD

Networking

Education

Bachelor’s degree in computer science

Tools

Databricks

Snowflake

Unity Catalog

Apache Iceberg

Hadoop

S3

AWS

Azure

GCP

Terraform

Ansible

GitHub

Docker

Job description

Make your mark at Comcast – a Fortune 30 global media and technology company. From the connectivity and platforms we provide, to the content and experiences we create, we reach hundreds of millions of customers, viewers, and guests worldwide. Become part of our award-winning technology team that turns big ideas into cutting-edge products, platforms, and solutions that our customers love. We create space to innovate, and we recognize, reward, and invest in your ideas, while ensuring you can proudly bring your authentic self to the workplace. Join us. You’ll do the best work of your career right here at Comcast. (In most cases, Comcast prefers to have employees on-site collaborating unless the team has been designated as virtual due to the nature of their work. If a position is listed with both office locations and virtual offerings, Comcast may be willing to consider candidates who live greater than 100 miles from the office for the remote option.)

Job Summary

As a Sr. Platform Engineer, you will be responsible for building, managing, and optimizing the underlying infrastructure and tools that enable efficient, scalable, and reliable execution of large-scale data processing workloads. Designing systems for collecting metrics (Prometheus) and visualizing data (Grafana) to provide deep insights into application/infrastructure performance. This role is a specialized subset of data platform engineering, ensuring the environment where data engineers and data scientists run their Spark jobs is robust and cost-efficient.

Job Description

RESPONSIBILITIES AND DUTIES:

• Architecting and managing the platforms where Spark runs, such as Kubernetes clusters, or cloud services like AWS (EKS).
• Packaging Spark workloads (often via Docker/Kubernetes) and integrating them with orchestration systems like Apache Flyte.
• Deploying Infrastructure via Terraform/Ansible
• Troubleshooting and resolving job failures, memory/resource issues, and execution anomalies. This includes optimizing Spark configurations to reduce cloud compute and storage costs.
• Building automation and tools in languages like Python, Java, or Scala, Linux Scripting (Bash) to increase the productivity of development teams.
• Write medium to complex SQL Queries as needed.
• Implementing and maintaining systems for monitoring, logging, and alerting (e.g., Prometheus, Grafana ) to ensure platform stability and reliability.
• Develop and optimize the data catalog platform (e.g., Apache Iceberg, Unity Catalog) for authorization, search, and lineage.
• Automate workflows, monitoring, and incident resolution.
• Collaborate with Data Stewards, Analysts, and Scientists to address data needs and issues.
• Promote best practices and assess emerging technologies.
• Working closely with data engineers, data scientists, and other engineering teams to define requirements, advise on best practices, and ensure successful delivery of data objectives.
• Engaging with open-source communities (likeApache Spark, Delta Lake, or Apache Iceberg) to discuss technical challenges and contribute improvements.
• Create and maintain comprehensive documentation for Kubernetes infrastructure, processes, and procedures. Provide training and support to team members as needed.

QUALIFICATIONS:

• Bachelor’s degree in computer science or a related field, or equivalent experience, typically 7 years in a DevOps or Systems Engineering role.
• Expertise in Apache Spark: Deep understanding of Spark architecture, including RDDs, DataFrames, execution hierarchy, lazy evaluation, shuffling, and fault tolerance.
• Proficiency in languages used for Spark development and automation, such as Python, Pyspark and Scala/Java.
• Proficient in Linux Scripting (Bash).
• Proficient in writing SQL.
• Experience in CI/CD tools, Github.
• Experience in setting up and using observability tools like Prometheus, Grafana etc.,
• Strong knowledge on Networking Protocols (TCP/IP, DNS, Load Balancer etc.,) and hardware components,
• Automation via Terraform/Ansible
• Hands-on experience with on-prem and major cloud providers (AWS, Azure, GCP) and container orchestration tools like Docker and Kubernetes.
• Handson experience setting up IAM, VPC, EC2 etc.,
• Familiarity with related technologies and formats like Delta Lake, Apache Iceberg, Apache Kafka, Hadoop, and various data storage systems (S3, HDFS, etc.).
• Hands-on experience with Databricks, Snowflake, Apache Iceberg, Unity Catalog, or similar tools.
• Solid understanding of data lakes and governance.
• Experience setting up, maintaining caching layers like Alluxio.
• Strong analytical skills for debugging complex distributed systems issues.
• Strong communication and collaboration abilities.

Disclaimer: This information has been designed to indicate the general nature and level of work performed by employees in this role. It is not designed to contain or be interpreted as a comprehensive inventory of all duties, responsibilities and qualifications.

Skills

Adobe Spark, Amazon S3, Databricks Platform, Go Programming Language, Kubernetes, Linux, Terraform (Software)

We believe that benefits should connect you to the support you need when it matters most, and should help you care for those who matter most. That’s why we provide an array of options, expert guidance and always-on tools that are personalized to meet the needs of your reality—to help support you physically, financially and emotionally through the big milestones and in your everyday life.

Please visit the benefits summary on our careers site for more details.

Education

Bachelor’s Degree

While possessing the stated degree is preferred, Comcast also may consider applicants who hold some combination of coursework and experience, or who have extensive related professional experience.

Certifications (if applicable)

Relevant Work Experience

7-10 Years

Comcast is an equal opportunity workplace. We will consider all qualified applicants for employment without regard to race, color, religion, age, sex, sexual orientation, gender identity, national origin, disability, veteran status, genetic information, or any other basis protected by applicable law.