Application Guide

How to Apply for Senior Software Engineer, Agentic Marketplace

at Scope3

🏢 About Scope3

Scope3 is unique as it combines advertising technology with climate impact, specifically targeting emission reduction in programmatic advertising. Working here means contributing to a mission-driven company that's pioneering AI agent infrastructure while addressing environmental sustainability in digital advertising.

About This Role

This Senior Software Engineer role focuses on building the core systems for an AI agent marketplace in programmatic advertising, specifically developing APIs, agent interfaces, and transaction systems that treat both humans and AI agents as first-class participants. You'll be working at the intersection of ad tech, distributed systems, and emerging AI agent frameworks to create scalable infrastructure for autonomous media transactions.

💡 A Day in the Life

A typical day involves designing and implementing APIs that serve both human users and AI agents, collaborating with the senior team on system architecture for the agentic marketplace, and writing production code for transaction systems that handle media inventory negotiations. You'll be solving challenges at the intersection of distributed systems, advertising technology, and emerging AI frameworks while contributing to scalable infrastructure development.

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Interview Prep

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🎯 Who Scope3 Is Looking For

  • Has 5+ years of full-stack development experience with strong backend focus (80/20 backend leaning) and experience building scalable APIs and distributed systems
  • Possesses knowledge of advertising technology, programmatic advertising ecosystems, and experience with transaction systems or marketplaces
  • Has practical experience with AI agent frameworks, autonomous systems, or machine learning integration in production environments
  • Demonstrates ability to translate architectural vision into production-ready systems and collaborate effectively in small, senior engineering teams

📝 Tips for Applying to Scope3

1

Highlight specific experience with programmatic advertising platforms, ad exchanges, or DSP/SSP systems in your resume

2

Showcase projects where you've built APIs or interfaces that serve both human users and automated systems simultaneously

3

Demonstrate understanding of AI agent frameworks by mentioning specific technologies you've worked with (LangChain, AutoGPT, etc.) or similar autonomous systems

4

Include metrics around system scalability, transaction volume, or performance improvements in distributed systems you've built

5

Tailor your application to show how your experience aligns with both the technical requirements AND Scope3's climate mission

✉️ What to Emphasize in Your Cover Letter

['Your experience with distributed systems and building scalable transaction platforms, particularly in advertising or marketplace contexts', 'Specific examples of working with AI/ML systems or autonomous agents in production environments', 'How your technical skills align with the 80/20 backend focus and full-stack requirements of the role', "Your interest in Scope3's mission to reduce emissions in advertising and how you see technology enabling this goal"]

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🔍 Research Before Applying

To stand out, make sure you've researched:

  • → Scope3's specific emission reduction solutions and how they apply to programmatic advertising
  • → Current trends in AI agent frameworks and autonomous systems in advertising technology
  • → The programmatic advertising ecosystem (DSPs, SSPs, ad exchanges) and how AI agents might disrupt it
  • → Scope3's existing products and how this Agentic Marketplace fits into their overall platform

💬 Prepare for These Interview Topics

Based on this role, you may be asked about:

1 System design questions about building a marketplace for AI agents to negotiate and transact media inventory
2 Technical discussions about API design for both human and AI agent consumption
3 Questions about your experience with distributed systems and handling high-volume transactions
4 Scenarios involving the intersection of advertising technology and AI agent frameworks
5 Discussion of how you've contributed to architectural decisions in previous senior engineering roles
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⚠️ Common Mistakes to Avoid

  • Applying with a generic software engineering background without specific advertising technology or marketplace experience
  • Focusing only on frontend skills when the role is explicitly 80/20 backend leaning
  • Not demonstrating understanding of both the technical requirements AND Scope3's climate mission in your application

📅 Application Timeline

This position is open until filled. However, we recommend applying as soon as possible as roles at mission-driven organizations tend to fill quickly.

Typical hiring timeline:

1

Application Review

1-2 weeks

2

Initial Screening

Phone call or written assessment

3

Interviews

1-2 rounds, usually virtual

✓

Offer

Congratulations!

Ready to Apply?

Good luck with your application to Scope3!

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