(USA) Staff, Software Engineer
Walmart
Position Summary...What you'll do...We are seeking a Data Architect to define the technical vision for our CTV Measurement and Data Platform. As advertising budgets shift to Streaming and OTT, the industry faces a critical data challenge: "How do we accurately measure performance across fragmented TV ecosystems without cookies?"
You will architect the systems that ingest billions of TV viewing events (beacons), resolve them to Household Identity Graphs, and power the attribution models that tell advertisers exactly how their TV spend is driving web and foot traffic. You will move us beyond simple impression counting to deep, privacy-safe audience insights.
About the team: Walmart's Advertising Technology group enables the connection between supplier brands and retail shoppers at unprecedented scale. We are a highly motivated group of engineers and data scientists, working in an agile group to solve sophisticated and high impact problems. We serve billions of ads requests every month with our high-performance ad servers. There are millions of customers shop on Walmart websites and in stores daily, and advertising helps advertisers bring the best products to our customers. If you want to influence millions of customers on their shopping journeys, we have a role for you. The AdTech M&R data team is responsible for delivering reporting and measurement for Advertisers to analyze and optimize campaigns. We are a team of data developers and machine learning developers whose strengths are: (1) building scalable data pipelines (2) using machine learning techniques and data science (3) making sense of broadly defined problems through data analysis. We are seeking a Data Architect to define the technical vision for our CTV Measurement and Data Platform. As advertising budgets shift to Streaming and OTT, the industry faces a critical data challenge: "How do we accurately measure performance across fragmented TV ecosystems without cookies?"
You will architect the systems that ingest billions of TV viewing events (beacons), resolve them to Household Identity Graphs, and power the attribution models that tell advertisers exactly how their TV spend is driving web and foot traffic. You will move us beyond simple impression counting to deep, privacy-safe audience insights.
What You’ll do:CTV Identity Graph: Design a probabilistic and deterministic Household Graph that unifies signals from Smart TVs, IP addresses, and ACR (Automatic Content Recognition) data to understand "Who is watching?"SSAI Data Pipelines: Architect high-throughput ingestion pipelines for Server-Side Ad Insertion (SSAI) logs. You must handle the "Thundering Herd" of tracking beacons that fire simultaneously during live sports ad breaks.Measurement & Attribution: Design the data models for TV-to-Web and TV-to-App attribution. You will solve complex problems like cross-device mapping (e.g., a user sees an ad on TV and buys on a phone).Privacy-Safe Collaboration: Lead the implementation of Data Clean Rooms (Snowflake / AWS Clean Rooms) to allow us to match our TV audiences with advertiser 1st-party data without ever exposing PII or IP addresses.Standardization: Define the schema and parsing logic for heterogeneous CTV signals, normalizing complex VAST/VMAP error codes and OpenRTB 2.6 "Ad Pod" data into a unified "Golden Record."Cost-Efficient Storage: Optimize the data lakehouse (Iceberg/Hudi) to retain petabytes of raw log data for compliance while enabling sub-second query performance for recent campaign analytics.What You’ll BringExperience: 10+ years in Data Engineering/Architecture, with at least 4 years focused on AdTech, CTV, or Digital Video.CTV Domain Mastery: Deep understanding of the TV ecosystem, including ACR data, OEM signals (Samsung/Vizio/LG), and the technical differences between SSAI and CSAI data streams.Identity Resolution: Experience building or implementing Device Graphs (handling IP rotation, household grouping, and co-viewing logic).Big Data Ecosystem: Expert-level knowledge of distributed computing (Spark, Flink, Trino) and modern table formats (Apache Iceberg, Delta Lake).Cloud Data Warehousing: Deep architectural experience with Snowflake or BigQuery, specifically optimizing for high-concurrency reporting dashboards.Streaming Architecture: Experience architecting event-driven pipelines (Kafka/Kinesis) capable of handling massive spikes during live broadcast events.Data Modeling: Proven ability to design dimensional models that can attribute a single "Conversion" event to multiple "Impression" events across different devices.Preferred QualificationsVideo Standards: Familiarity with IAB standards like VAST, VMAP, and OpenRTB 2.6 (specifically regarding Ad Pods and slot position data).Measurement Partners: Experience working with data from third-party measurement vendors like Nielsen, Comscore, iSpot, or VideoAmp.Privacy Tech: Knowledge of IP-masking techniques and privacy-safe data sharing protocols
At Walmart, we offer competitive pay as well as performance-based bonus awards and other great benefits for a happier mind, body, and wallet. Health benefits include medical, vision and dental coverage. Financial benefits include 401(k), stock purchase and company-paid life insurance. Paid time off benefits include PTO (including sick leave), parental leave, family care leave, bereavement, jury duty, and voting. Other benefits include short-term and long-term disability, company discounts, Military Leave Pay, adoption and surrogacy expense reimbursement, and more. You will also receive PTO and/or PPTO that can be used for vacation, sick leave, holidays, or other purposes. The amount you receive depends on your job classification and length of employment. It will meet or exceed the requirements of paid sick leave laws, where applicable. For information about PTO, see https://one.walmart.com/notices. Live Better U is a Walmart-paid education benefit program for full-time and part-time associates in Walmart and Sam's Club facilities. Programs range from high school completion to bachelor's degrees, including English Language Learning and short-form certificates. Tuition, books, and fees are completely paid for by Walmart.
Eligibility requirements apply to some benefits and may depend on your job classification and length of employment. Benefits are subject to change and may be subject to a specific plan or program terms.
For information about benefits and eligibility, see One.Walmart.
Sunnyvale, California US-04397: The annual salary range for this position is $143,000.00 - $286,000.00
Bentonville, Arkansas US-10866: The annual salary range for this position is $110,000.00 - $220,000.00 Additional compensation includes annual or quarterly performance bonuses. Additional compensation for certain positions may also include :
- Stock
Option 2: 6 years’ experience in software engineering or related area.Preferred Qualifications...
You will architect the systems that ingest billions of TV viewing events (beacons), resolve them to Household Identity Graphs, and power the attribution models that tell advertisers exactly how their TV spend is driving web and foot traffic. You will move us beyond simple impression counting to deep, privacy-safe audience insights.
About the team: Walmart's Advertising Technology group enables the connection between supplier brands and retail shoppers at unprecedented scale. We are a highly motivated group of engineers and data scientists, working in an agile group to solve sophisticated and high impact problems. We serve billions of ads requests every month with our high-performance ad servers. There are millions of customers shop on Walmart websites and in stores daily, and advertising helps advertisers bring the best products to our customers. If you want to influence millions of customers on their shopping journeys, we have a role for you. The AdTech M&R data team is responsible for delivering reporting and measurement for Advertisers to analyze and optimize campaigns. We are a team of data developers and machine learning developers whose strengths are: (1) building scalable data pipelines (2) using machine learning techniques and data science (3) making sense of broadly defined problems through data analysis. We are seeking a Data Architect to define the technical vision for our CTV Measurement and Data Platform. As advertising budgets shift to Streaming and OTT, the industry faces a critical data challenge: "How do we accurately measure performance across fragmented TV ecosystems without cookies?"
You will architect the systems that ingest billions of TV viewing events (beacons), resolve them to Household Identity Graphs, and power the attribution models that tell advertisers exactly how their TV spend is driving web and foot traffic. You will move us beyond simple impression counting to deep, privacy-safe audience insights.
What You’ll do:CTV Identity Graph: Design a probabilistic and deterministic Household Graph that unifies signals from Smart TVs, IP addresses, and ACR (Automatic Content Recognition) data to understand "Who is watching?"SSAI Data Pipelines: Architect high-throughput ingestion pipelines for Server-Side Ad Insertion (SSAI) logs. You must handle the "Thundering Herd" of tracking beacons that fire simultaneously during live sports ad breaks.Measurement & Attribution: Design the data models for TV-to-Web and TV-to-App attribution. You will solve complex problems like cross-device mapping (e.g., a user sees an ad on TV and buys on a phone).Privacy-Safe Collaboration: Lead the implementation of Data Clean Rooms (Snowflake / AWS Clean Rooms) to allow us to match our TV audiences with advertiser 1st-party data without ever exposing PII or IP addresses.Standardization: Define the schema and parsing logic for heterogeneous CTV signals, normalizing complex VAST/VMAP error codes and OpenRTB 2.6 "Ad Pod" data into a unified "Golden Record."Cost-Efficient Storage: Optimize the data lakehouse (Iceberg/Hudi) to retain petabytes of raw log data for compliance while enabling sub-second query performance for recent campaign analytics.What You’ll BringExperience: 10+ years in Data Engineering/Architecture, with at least 4 years focused on AdTech, CTV, or Digital Video.CTV Domain Mastery: Deep understanding of the TV ecosystem, including ACR data, OEM signals (Samsung/Vizio/LG), and the technical differences between SSAI and CSAI data streams.Identity Resolution: Experience building or implementing Device Graphs (handling IP rotation, household grouping, and co-viewing logic).Big Data Ecosystem: Expert-level knowledge of distributed computing (Spark, Flink, Trino) and modern table formats (Apache Iceberg, Delta Lake).Cloud Data Warehousing: Deep architectural experience with Snowflake or BigQuery, specifically optimizing for high-concurrency reporting dashboards.Streaming Architecture: Experience architecting event-driven pipelines (Kafka/Kinesis) capable of handling massive spikes during live broadcast events.Data Modeling: Proven ability to design dimensional models that can attribute a single "Conversion" event to multiple "Impression" events across different devices.Preferred QualificationsVideo Standards: Familiarity with IAB standards like VAST, VMAP, and OpenRTB 2.6 (specifically regarding Ad Pods and slot position data).Measurement Partners: Experience working with data from third-party measurement vendors like Nielsen, Comscore, iSpot, or VideoAmp.Privacy Tech: Knowledge of IP-masking techniques and privacy-safe data sharing protocols
At Walmart, we offer competitive pay as well as performance-based bonus awards and other great benefits for a happier mind, body, and wallet. Health benefits include medical, vision and dental coverage. Financial benefits include 401(k), stock purchase and company-paid life insurance. Paid time off benefits include PTO (including sick leave), parental leave, family care leave, bereavement, jury duty, and voting. Other benefits include short-term and long-term disability, company discounts, Military Leave Pay, adoption and surrogacy expense reimbursement, and more. You will also receive PTO and/or PPTO that can be used for vacation, sick leave, holidays, or other purposes. The amount you receive depends on your job classification and length of employment. It will meet or exceed the requirements of paid sick leave laws, where applicable. For information about PTO, see https://one.walmart.com/notices. Live Better U is a Walmart-paid education benefit program for full-time and part-time associates in Walmart and Sam's Club facilities. Programs range from high school completion to bachelor's degrees, including English Language Learning and short-form certificates. Tuition, books, and fees are completely paid for by Walmart.
Eligibility requirements apply to some benefits and may depend on your job classification and length of employment. Benefits are subject to change and may be subject to a specific plan or program terms.
For information about benefits and eligibility, see One.Walmart.
Sunnyvale, California US-04397: The annual salary range for this position is $143,000.00 - $286,000.00
Bentonville, Arkansas US-10866: The annual salary range for this position is $110,000.00 - $220,000.00 Additional compensation includes annual or quarterly performance bonuses. Additional compensation for certain positions may also include :
- Stock
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Minimum Qualifications...Outlined below are the required minimum qualifications for this position. If none are listed, there are no minimum qualifications.
Option 1: Bachelor's degree in computer science, computer engineering, computer information systems, software engineering, or related area and 4 years’ experience in software engineering or related area.Option 2: 6 years’ experience in software engineering or related area.Preferred Qualifications...
Outlined below are the optional preferred qualifications for this position. If none are listed, there are no preferred qualifications.
Master’s degree in Computer Science, Computer Engineering, Computer Information Systems, Software Engineering, or related area and 2 years' experience in software engineering or related area, We value candidates with a background in creating inclusive digital experiences, demonstrating knowledge in implementing Web Content Accessibility Guidelines (WCAG) 2.2 AA standards, assistive technologies, and integrating digital accessibility seamlessly. The ideal candidate would have knowledge of accessibility best practices and join us as we continue to create accessible products and services following Walmart’s accessibility standards and guidelines for supporting an inclusive culture.Primary Location...680 West California Avenue, Sunnyvale, CA 94086-4834, United States of AmericaWalmart and its subsidiaries are committed to maintaining a drug-free workplace and has a no tolerance policy regarding the use of illegal drugs and alcohol on the job. This policy applies to all employees and aims to create a safe and productive work environment.
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