Development Engineer 3

Comcast brings together the best in media and technology. We drive innovation to create the world's best entertainment and online experiences. As a Fortune 50 leader, we set the pace in a variety of innovative and fascinating businesses and create career opportunities across a wide range of locations and disciplines. We are at the forefront of change and move at an amazing pace, thanks to our remarkable people, who bring cutting-edge products and services to life for millions of customers every day. If you share in our passion for teamwork, our vision to revolutionize industries and our goal to lead the future in media and technology, we want you to fast-forward your career at Comcast.

Job Summary

Responsible for planning and designing new software and web applications. Analyzes, tests and assists with the integration of new applications. Documents all development activity. Assists with training non-technical personnel. Has in-depth experience, knowledge and skills in own discipline. Usually determines own work priorities. Acts as a resource for colleagues with less experience.

Job Description

Job Title: Cassandra/Scylla DBA Engineer3 

Location: Chennai 

Employment Type: Full-Time 

Experience Level: Engineer3 (5-8yrs) 

Role Summary: 
We are seeking for an experienced Cassandra/Scylla DBA Engineer to manage, maintain, and optimize distributed Cassandra database systems. The ideal candidate will have a strong background in NoSQL data modelling, performance tuning, and automation, with a focus on ensuring high availability, security and scalability of distributed NoSQL data systems, supporting mission-critical applications across cloud and on-prem environments. 

 

Key Responsibilities: 

        Cluster Management: 

Install, configure, and maintain Cassandra clusters. 

Manage replication strategies, consistency levels, and data partitioning. 

Monitor cluster health and performance using tools like Prometheus, Grafana, Alertmanager, OpsCenter. 

Performance & Optimization: 

Analyze query performance and optimize data access patterns. 

Identify and resolve bottlenecks and hotspots. 

Conduct benchmarking and tuning exercises. 

Security & Compliance: 

Implement authentication, authorization, and encryption. 

Ensure compliance with data governance and security standards. 

Backup & Recovery: 

Design and implement backup and disaster recovery strategies. 

Test restore procedures and maintain recovery documentation. 

Operational Support: 

Respond to incidents and alerts. 

Collaborate with development and infrastructure teams. 

Automate administrative tasks using Bash, Ansible, Python, or similar scripting languages. 

Collaboration & Support: 

Work closely with application developers, SREs, and infrastructure teams to support data needs. 

Provide guidance and mentorship to junior DBAs and engineers. 

Participate in on-call rotations and incident management. 

Cloud & DevOps Integration: 

Deploy and manage Cassandra on AWS/Openstack using Terraform. 

 

Required Qualifications: 

• Bachelor’s degree in Computer Science, Information Technology, or related field. 
• 5+ years of hands-on experience in Cassandra administration. 
• Strong understanding of Cassandra internals, architecture, and NoSQL principles. 
• Experience with Linux/Unix systems. 
• Proficiency in scripting (Bash, Python). 
• Familiarity with cloud platforms (AWS, GCP) and DevOps tools (Terraform, Git, Ansible). 
• Strong understanding of distributed systems, CAP theorem, and NoSQL data modeling. 
• Experience with tools like nodetool, cqlsh, Scylla Manager, and Prometheus/Grafana. 
• Proficiency in Linux system administration and shell scripting. 
• Familiarity with monitoring, alerting, and logging tools. 

 

Employees at all levels are expected to:

• Understand our Operating Principles; make them the guidelines for how you do your job.
• Own the customer experience - think and act in ways that put our customers first, give them seamless digital options at every touchpoint, and make them promoters of our products and services.
• Know your stuff - be enthusiastic learners, users and advocates of our game-changing technology, products and services, especially our digital tools and experiences.
• Win as a team - make big things happen by working together and being open to new ideas.
• Be an active part of the Net Promoter System - a way of working that brings more employee and customer feedback into the company - by joining huddles, making call backs and helping us elevate opportunities to do better for our customers.
• Drive results and growth.
• Support a culture of inclusion in how you work and lead.
• Do what's right for each other, our customers, investors and our communities.

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.

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

5-7 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.