CEF.AI · 1 day ago
Principal Software Engineer
San Francisco, CA
Full-time
Hybrid
Senior Level, Lead/Staff
$120K/yr - $200K/yr
4+ years expCEF.AI is focused on building the future of agentic AI infrastructure. The Principal Software Engineer will design and build the inference platform for sovereign AI agents, working across the stack and applying modern technologies to develop scalable systems.
Information Technology & Services
Responsibilities
Systems Architecture: Design, implement, and scale foundational backend systems and APIs that power real-time, multi-agent AI workflows
Developer Experience: Own the end-to-end developer journey by building SDKs, CLIs, and interfaces that make it easy to interact with our platform
Cross-Stack Execution: Rapidly prototype and productize features using tools like Cursor, React, and TypeScript—without sacrificing quality or scale
Technical Leadership: Guide architectural decisions, lead design reviews, and mentor engineers in best practices for distributed, high-performance systems
Collaboration: Partner with product, design, and leadership to align technical execution with company vision and user needs
Execution Ownership: Drive key projects from 0→1 with autonomy, accountability, and a strong bias for action
Qualification
Required
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
Preferred
Experience with edge computing, real-time inference, or AI/ML-powered systems
Benefits
Real Equity & Fair Pay: We believe in true partnership. You will get a competitive salary and meaningful equity so your personal upside is tied directly to the company's success.
Ownership, Not Just Tasks: You won't be lost in a big machine here. You will take full ownership of your projects and help define the future of our Web3 stack.
Direct Access to Leadership: You are part of the core conversation. You will work side by side with the CEO and founders every day to solve hard problems and set the strategy.
Inventing the Future: We are building the infrastructure for autonomous AI agents that doesn't exist yet. This is the place for you if you want to do original work instead of maintaining legacy systems.
Builders Decide: We hate red tape as much as you do. We stay lean and let the people building the product make the decisions that drive the roadmap.
Remote with Connection: We are remote first but value real face time. We meet monthly in SF and Europe to build momentum together because we know results matter more than counting hours.
Company
CEF.AI
11-50 employees
Funding
Current Stage
Early StageCompany data provided by crunchbase