Note: The job is a remote job and is open to candidates in USA. Scope3 operates in the advertising technology space, focusing on the future of programmatic advertising through AI agents. The Staff Software Engineer will lead the development of APIs and systems that empower AI agents to autonomously transact media inventory, making critical architectural decisions in a fast-paced environment.

Responsibilities

• Design and architect scalable APIs for both human and AI agent clients
• Lead development of agent interfaces, MCP servers, and A2A communication layers
• Build and operate high-throughput systems for real-time advertising transactions
• Evaluate and integrate emerging agent frameworks and protocols
• Partner with product and design to define clear, agent-friendly API contracts
• Drive architectural decisions around authentication, protocols, and transaction flows
• Collaborate with external DSPs, SSPs, and agent platform partners
• Mentor engineers on API design, distributed systems, and agent architectures
• Anticipate and address edge cases in autonomous agent behavior

Skills

• 8+ years building distributed backend systems at scale
• 4+ years in a technical leadership role
• 4+ years working professionally within the AdTech ecosystem
• Strong expertise in API design and architecture (REST, event-driven systems, auth, versioning)
• Experience with AI agent frameworks and communication protocols, or the ability to rapidly learn and evaluate them
• Proficiency with TypeScript/Node.js, React, and cloud platforms (GCP or AWS)
• Experience designing systems for autonomous or semi-autonomous decision-making
• Track record of mentoring engineers and fostering a collaborative team culture
• Comfort working in fast-moving, evolving environments

Benefits

• Comprehensive medical, dental, and vision coverage with significant employer contribution; short- and long-term disability coverage; health savings/flexible spending options
• Employer-matched retirement savings plan (401(k) or RRSP)
• Generous paid time off, statutory holidays, and year-end office closure
• 13 weeks fully paid (eligibility requirements apply)
• Company-provided home office equipment, setup stipend, and access to WeWork spaces
• Stock options

Company Overview