[Remote] Staff Software Engineer (Fullstack, BE-leaning)
Note: The job is a remote job and is open to candidates in USA. Scope3 operates an agent-to-agent advertising interchange that enables brands and their agents to discover, negotiate, and transact across advertising surfaces. The Staff Software Engineer will provide hands-on technical leadership for the APIs, protocols, and agent interfaces powering the platform, while designing scalable distributed systems, evaluating AI agent technologies, writing production code, and mentoring engineers.
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)
- 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
- Experience with AI agent frameworks and communication protocols, or the ability to rapidly learn and evaluate them
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 parental leave (eligibility requirements apply)
- Company-provided home office equipment, setup stipend, and access to WeWork spaces
- Stock options
Company Overview