Backend Software Engineer for AI Core team building foundational AI capabilities across Ad Platforms. Implementing backend services, APIs, and integrating LLMs for AI - powered systems.
About the role
- Principal Software Engineer designing and building an inference platform for sovereign AI agents. Collaborating with a technical team to shape the future of AI infrastructure.
Responsibilities
- Design, implement, and scale foundational backend systems and APIs that power real-time, multi-agent AI workflows.
- Own the end-to-end developer journey by building SDKs, CLIs, and interfaces that make it easy to interact with our platform.
- Rapidly prototype and productize features using tools like Cursor, React, and TypeScript—without sacrificing quality or scale.
- Guide architectural decisions, lead design reviews, and mentor engineers in best practices for distributed, high-performance systems.
- Partner with product, design, and leadership to align technical execution with company vision and user needs.
- Drive key projects from 0→1 with autonomy, accountability, and a strong bias for action.
Requirements
- 4+ years in high-performance software environments, with a proven track record of shipping complex systems end-to-end.
- Mastery of one or more systems languages (Go, Rust, Kotlin, etc.) and strong backend engineering fundamentals.
- Experience designing and scaling distributed systems with performance, reliability, and observability in mind.
- Strong discipline around testing, CI/CD, and long-term maintainability (TDD preferred).
- Ability to turn ambiguity into architecture, and architecture into reliable, extensible code.
- Clear, concise communicator who can explain tradeoffs, write technical specs, and mentor junior engineers.
- Bonus: Experience with edge computing, real-time inference, or AI/ML-powered systems.
Benefits
- Competitive Compensation & Meaningful Equity: We offer founder-level alignment because this is a founder-level role.
- High-Ownership Role: You’ll directly shape our technical direction and long-term stack architecture.
- Work with Top-Tier Founders & Engineers: Collaborate daily with a deeply technical, mission-driven leadership team.
- Build the Future of AI Infrastructure: We're not optimizing yesterday's workflows—we're inventing tomorrow's.
- Zero Bureaucracy, Maximum Autonomy: We stay lean, move fast, and trust you to lead.
- Remote-First, In-Person When It Counts: We're distributed across SF and Europe, with monthly hackathons and off-sites to align and build together.
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