Lead Software Engineer-0773

Comcast Advertising; Reston, Northern (VA, KY); Hybrid; USD 175,000 - 195,000; Full time

Job summary

Comcast Advertising is seeking a Lead Software Engineer to provide technical leadership across design and development of ad-tech software, focusing on high-throughput C++ applications running on Linux.

The role requires deep experience with relational and NoSQL databases, cloud-native tools, and performance profiling, with opportunities to mentor junior engineers and influence architecture. Hybrid remote work is available.

Qualifications

• Bachelor’s degree or foreign equivalent in Computer Science, Engineering, or related field.

Responsibilities

• Provide technical leadership in designing and developing new software and web applications for ad tech systems.
• Architect and develop scalable, low-latency C++ applications on Linux for high-throughput workloads.
• Collaborate with SRE/DevOps teams to instrument systems and monitor performance with Prometheus, Grafana, and ELK.

Job description

## Lead Software Engineer-0773Apply: VA - Reston, 11951 Freedom Dr Ste 900: Full time: Posted Today: End Date: September 30, 2026 (18 days left to apply): R441153FreeWheel, a Comcast company, provides comprehensive ad platforms for publishers, advertisers, and media buyers. Powered by premium video content, robust data, and advanced technology, we’re making it easier for buyers and sellers to transact across all screens, data types, and sales channels. As a global company, we have offices in nine countries and can insert advertisements around the world.**Job Summary****Job Description**DUTIES: Provide technical leadership in designing and developing new software and web applications; work on ad tech systems, covering ad-serving data indexing engines, ad selection algorithms, and audience targeting pipelines; optimize relational (MySQL, Aurora) and NoSQL (Aerospike, DynamoDB, ETCD, Neo4J, RocksDB) databases through thoughtful schema design, efficient query crafting, and cache fine-tuning; leverage profiling tools (sanitizer, perf and gprof), along with custom benchmarks and tracing, to diagnose and optimize CPU, memory, and I/O performance issues; architect and develop scalable, low-latency C++ applications on Linux, designed to handle high-throughput, high-QPS workloads; architect, implement, and optimize core services across distributed infrastructure, driving improvements in throughput, reliability, and overall system efficiency; use cloud-native tools such as Kubernetes, Docker, and Terraform, alongside key AWS services including ELB, EKS, S3, DynamoDB, and Kinesis; and work with SRE/DevOps teams to instrument systems (Prometheus, Grafana, ELK, Loki stack); support applications under development and customize current applications; assist with the software update process for existing applications, and roll-outs of software releases; analyze, test, and assist with the integration of new applications; document all development activity; research, write, and edit documentation and technical requirements, including software designs, evaluation plans, test results, technical manuals, and formal recommendations and reports; monitor and evaluate competitive applications and products; review literature, patents, and current practices relevant to the solution of assigned projects; collaborate with project stakeholders to identify product and technical requirements; conduct analysis to determine integration needs; work with the Quality Assurance team to determine if applications fit specification and technical requirements; and guide and mentor junior-level engineers. Position is eligible to work remotely one or more days per week, per company policy.REQUIREMENTS: Bachelor’s degree, or foreign equivalent, in Computer Science, Engineering, or related technical field, and seven (7) years of experience developing software for ad tech systems, including ad-serving data indexing engines, ad selection algorithms, and audience targeting pipelines; caching and optimizing relational databases including MySQL and Aurora, and NoSQL databases including Aerospike, DynamoDB, ETCD, Neo4J, and RocksDB; using sanitizer, perf, and gprof profiling tools for performance tuning; architecting and developing scalable, low-latency C++ applications on Linux; performing end to end system design and optimization; of which five (5) years include using cloud-native tools including Kubernetes, Docker, and Terraform, and AWS services including ELB, EKS, S3, DynamoDB, and Kinesis; and monitoring and troubleshooting systems using Prometheus, Grafana, ELK, and Loki stack.SALARY: $175,427 to $195,000 per yearBENEFITS: https://jobs.comcast.com/life-at-comcast/benefits.**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**Aerospike Database, Docker (Software), Grafana**Compensation**Base Pay: $175,427.00Comcast intends to offer the selected candidate base pay dependent on job-related, non-discriminatory factors such as experience.Base pay is one part of the Total Rewards that Comcast provides to compensate and recognize employees for their work. Most sales positions are eligible for a Commission under the terms of an applicable plan, while most non-sales positions are eligible for a Bonus. Additionally, Comcast provides best-in-class Benefits to eligible employees. 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 compensation and benefits summary on our careers site for more details.The application window is 30 days from the date job is posted, unless the number of applicants requires it to close sooner or later.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.