FriendliAI · 1 week ago
Software Engineer – Backend Engineer
San Francisco Bay Area
Full-time
Onsite
Senior Level
$160K/yr - $230K/yr
5+ years expFriendliAI, based in San Mateo, CA, is building the next-generation AI inference platform that powers large language and multimodal models. They are seeking a Backend Engineer to design, build, and scale their web platform, collaborating closely with product and infrastructure teams to create high-performance tools.
Artificial Intelligence (AI)Generative AIInformation TechnologyInternetSaaSSoftware
Hiring Manager
Woojin Lee
Responsibilities
Design, build, and maintain web applications and tools for AI model deployment, monitoring, and performance optimization
Develop clean, scalable, and robust APIs powering AI agents, workflows, and user-facing systems
Collaborate with infrastructure engineers to integrate backend systems with deployment and orchestration pipelines
Drive code quality through automated testing, CI/CD, and code reviews
Contribute to architecture and design decisions that shape our platform’s long-term direction
Identify and resolve technical debt and improve system reliability in production systems
Qualification
Required
5+ years of industry experience in full-stack or backend engineering
Bachelor's or Master's degree in Computer Science, Computer Engineering, or equivalent
Strong backend experience with FastAPI or similar Python frameworks
Proven expertise in delivering production-scale full-stack applications
Proficiency in designing data models, writing SQL, and working with PostgreSQL
Deep understanding of modern web frameworks and component-driven architecture
Strong API design experience across gRPC/REST/GraphQL in production systems
Solid foundation in cloud-native development
Familiarity with OpenTelemetry tracing, metrics, and structured logging
Knowledge of web security, authentication, RBAC, and multi-tenant SaaS systems
Preferred
Familiarity with LLM-based workflows, tool invocation, or agentic systems
Familiarity with Kubernetes for container orchestration, including deploying, scaling, and managing containerized applications in production environments
Have worked in a startup or fast-paced environments with ownership and ambiguity
Built developer-facing SDKs/CLIs
Passion for developer experience and enabling AI adoption
Benefits
Flexible working hours
Daily lunch and dinner provided
Unlimited snacks and beverages
Supportive work environment
Health check-up support
Top-tier equipment support
Competitive compensation
Startup equity
Health insurance
Company
FriendliAI
FriendliAI is an AI infrastructure company that enables deployment, scaling, and monitoring of large language and multimodal models.
11-50 employees
Funding
Current Stage
Early StageTotal Funding
$26.75MKey Investors
Capstone Partners
2025-08-28Seed· $20M
2021-12-15Seed· $6.75M
Leadership Team
Byung-Gon Chun
Chief Executive Officer
Gyeong-In Yu
Chief Technology Officer
Recent News
Inside HPC & AI News | High-Performance Computing & Artificial Intelligence
2025-12-20
2025-12-16
2025-10-28
Company data provided by crunchbase