Posted Aug 20, 2026

Senior Platform Software Engineer

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About the Role

We're looking for a Senior or Staff Platform Software Engineer to improve the productivity, reliability, and scalability of our engineering organization while contributing directly to the evolution of our AI-native advertising marketplace.


You'll spend most of your time building the internal tooling, infrastructure, and developer experience that allows our engineers to move quickly and confidently. Because we're a small team building an ambitious product, you'll also jump into product engineering—helping design and implement features across our marketplace when priorities demand it.


This role is ideal for engineers who enjoy multiplying the effectiveness of an entire engineering team while remaining close to customer-facing software.


**We’re open to candidates at the Senior or Staff level. We care less about title than demonstrated technical judgment, ownership, and the ability to identify and drive improvements across our engineering organization.


Why this role is different

We're a small engineering team building in a rapidly evolving space. There isn't a mature playbook for many of the problems we're solving.

Success here requires engineers who:

If you're happiest working exclusively on internal infrastructure or exclusively on product features, this probably isn't the right fit. We believe our strongest engineers are excited to contribute across both.


Responsibilities

Platform Engineering (approximately 80%)

Product Engineering (approximately 20%)


What we're looking for


Nice to have


Compensation

The salary range for this role at a Senior level is $150k-$190k USD, $140k-$200k CAD.

The salary range for this role at a Staff level is $180k-$230k USD, $190k-$245k CAD.

These ranges span multiple location-based salary bands across the US and Canada. Candidates are aligned to a narrower range based on geographic market compensation data specific to where they live, and final offers reflect demonstrated skills, experience, and role expectations.


Benefits & Perks

Details vary by location (USA/Canada), but all employees receive:

About Scope3

Scope3 operates the Interchange for agent-to-agent advertising — the place where brands and their agents discover, negotiate, and transact across every advertising surface that matters: social, CTV, audio, AI interfaces, sponsored intelligence, and those still emerging. Built on AdCP, the open protocol for agentic advertising, with governance, transparent pricing, and full auditability built into every transaction.

Scope3 works with leading advertisers, agencies, publishers, and platforms globally, with fully remote teams across North America, Europe, and APAC.

5+ years of software engineering or equivalent production-systems experience; strong TypeScript and Node.js; scalable systems, developer infrastructure, CI/CD, distributed systems, API design, performance diagnosis, and project ownership.

Key Responsibilities

Skills & Tools

TypeScript, Node.js, Turborepo, Nx, Kubernetes, Google Cloud Platform, AWS, GitHub Actions, Grafana, Prometheus, OpenTelemetry, PostgreSQL, Redis, BigQuery, MCP servers, AdCP

Job Details

Benefits

About Scope3 PBC

An agent-to-agent advertising marketplace connecting brands, agencies, publishers, and platforms across digital advertising surfaces. — Industry: Media and Communications