Harsh S.

Amazon DSP & Walmart Display Ads Expert | Programmatic Strategy

I help Amazon and Walmart sellers scale their programmatic advertising efficiently. I’m an Amazon DSP and Walmart Display Ads expert with over five years of hands-on experience managing Amazon DSP and two years running Walmart onsite and offsite display campaigns. Prior to that, I worked in non-Amazon programmatic advertising, giving me a strong foundation in full-funnel media strategy and optimization. I previously spent four years at Amazon Ads in campaign management, including during the early development of Amazon DSP. That experience gives me a practical understanding of how these platforms operate, how audiences perform across the funnel, and how to structure campaigns for both efficiency and scale. My work is focused on improving ROAS, scaling spend responsibly, driving new-to-brand customers, and turning performance data into clear, actionable insights. I work best with brands that have a meaningful monthly ad budget and want a transparent, hands-on partner managing their Amazon and Walmart programmatic advertising. Services I Provide Across Amazon DSP and Walmart onsite and offsite display, I offer: End-to-end campaign management from setup through optimization and reporting Amazon DSP campaign builds, management, and optimization Walmart Display Ads and Walmart DSP management Full-funnel programmatic advertising strategy Campaign audits and structural reviews Audience strategy and targeting recommendations Creative strategy and channel recommendation ROAS optimization and efficiency improvements Clear, actionable reporting and performance dashboards One-time consultations and ongoing management engagements I support both short campaign flights and longer-term programs depending on your goals. Why Hire Me? Clients work with me because I’m direct, transparent, and easy to communicate with. I bring both platform-side and agency-side experience, having worked at Amazon Ads and most recently at Stackline. I’ve managed campaigns from the inside, partnered closely with brands, and worked alongside teams responsible for building and improving these advertising tools. I also bring a strong industry network. Through my time at Amazon and in agency roles, I’ve built long-standing relationships across the Amazon Ads ecosystem and with fellow programmatic advertisers. This allows me to stay close to platform updates, gain early exposure to new features when available, and maintain a broader view of category and market trends beyond a single account. I don’t oversell results or hide behind vague metrics. If something is working, I’ll explain why. If it’s not, I’ll say so and adjust the strategy using data. My Process 1. Discovery and Setup We align on goals, budgets, and constraints. I review historical performance, existing campaign structure, audiences, and reporting before building or refining the setup. 2. Launch and Test Campaigns launch with a clear testing plan. I monitor performance closely, evaluate early signals across the funnel, and validate assumptions with data. 3. Report and Optimize I optimize toward what’s working, shifting spend and strategy based on performance trends. Reporting is clear, practical, and directly tied to next actions. Testing and learning is core to how I manage Amazon DSP and Walmart display campaigns. Certifications: I am certified to manage campaigns across: Amazon DSP, Walmart Display Self Service (DSS), Walmart offsite ( The Trade Desk). Portfolio and Past Results I’m happy to walk through relevant examples on a call. Due to NDAs, I don’t share brand names publicly, but I can discuss results by vertical and objective, including ROAS improvements, increased brand spend, and driving new-to-brand customers. I prefer to share examples once I understand your goals, since performance in advertising is best evaluated in context. Let’s Get Started If you’re looking for help scaling Amazon DSP or Walmart Display Ads, feel free to book a discovery call or request a marketing consultation. I’m happy to review your current setup and talk through next steps.