Full Stack Engineer
Palo Alto, CA · On-site
About The Role RadixArk is building the infrastructure layer for frontier AI systems - unified inference, training, and evaluation stacks powering next-generation LLM applications at scale. Our ...
RadixArk
45 Radixark Jobs Hiring Near You
Full Stack Engineer
Palo Alto, CA · On-site
About The Role RadixArk is building the infrastructure layer for frontier AI systems - unified inference, training, and evaluation stacks powering next-generation LLM applications at scale. Our ...
About the Role RadixArk is seeking a Member of Technical Staff - Training to build and scale the systems that train frontier AI models. You will work on large-scale distributed training ...
About the Role RadixArk is seeking a Member of Technical Staff - Training to build and scale the systems that train frontier AI models. You will work on large-scale distributed training ...
About the Role RadixArk is hiring a Member of Technical Staff - CI Engineer to own the infrastructure that keeps SGLang moving. Our CI system runs 300+ GPU tests across NVIDIA, AMD, Intel, and Ascend ...
About the Role RadixArk is hiring a Member of Technical Staff - CI Engineer to own the infrastructure that keeps SGLang moving. Our CI system runs 300+ GPU tests across NVIDIA, AMD, Intel, and Ascend ...
About the Role RadixArk is hiring a Member of Technical Staff - CI Engineer to own the infrastructure that keeps SGLang moving. Our CI system runs 300+ GPU tests across NVIDIA, AMD, Intel, and Ascend ...
About the Role RadixArk is hiring a Member of Technical Staff - CI Engineer to own the infrastructure that keeps SGLang moving. Our CI system runs 300+ GPU tests across NVIDIA, AMD, Intel, and Ascend ...
About the Role We're looking for a Head of Business Development to build the BD function at RadixArk from the ground up. The BD team is the institutional memory of this company - maintaining active ...
About the Role We're looking for a Head of Business Development to build the BD function at RadixArk from the ground up. The BD team is the institutional memory of this company - maintaining active ...
About the Role RadixArk is seeking a Member of Technical Staff - Inference to push the limits of large-scale AI inference. You will work on the core systems that serve frontier models at scale ...
About the Role RadixArk is seeking a Member of Technical Staff - Inference to push the limits of large-scale AI inference. You will work on the core systems that serve frontier models at scale ...
About the Role RadixArk is looking for a Member of Technical Staff (Cluster / Platform) to architect and scale the core compute platform that powers frontier-level AI training and inference. You will ...
About the Role RadixArk is looking for a Member of Technical Staff (Cluster / Platform) to architect and scale the core compute platform that powers frontier-level AI training and inference. You will ...
About the Role RadixArk is looking for a Member of Technical Staff (Cluster / Platform) to architect and scale the core compute platform that powers frontier-level AI training and inference. You will ...
About the Role RadixArk is looking for a Member of Technical Staff (Cluster / Platform) to architect and scale the core compute platform that powers frontier-level AI training and inference. You will ...
Software Engineer, Product
Palo Alto, CA · On-site
About the Role RadixArk is seeking experienced product-focused engineers to join our team in building the developer-facing surfaces of our inference and training infrastructure. As a Software ...
Software Engineer, Product
Palo Alto, CA · On-site
About the Role RadixArk is seeking experienced product-focused engineers to join our team in building the developer-facing surfaces of our inference and training infrastructure. As a Software ...
Product Manager
Palo Alto, CA · On-site
About RadixArk RadixArk is an infrastructure-first company built by engineers who've shipped production AI systems, created SGLang (20K+ GitHub stars, the fastest open LLM serving engine), and ...
Product Manager
Palo Alto, CA · On-site
About RadixArk RadixArk is an infrastructure-first company built by engineers who've shipped production AI systems, created SGLang (20K+ GitHub stars, the fastest open LLM serving engine), and ...
Product Manager
Palo Alto, CA · On-site
About RadixArk RadixArk is an infrastructure-first company built by engineers who've shipped production AI systems, created SGLang (20K+ GitHub stars, the fastest open LLM serving engine), and ...
Product Manager
Palo Alto, CA · On-site
About RadixArk RadixArk is an infrastructure-first company built by engineers who've shipped production AI systems, created SGLang (20K+ GitHub stars, the fastest open LLM serving engine), and ...
Designer
Palo Alto, CA · On-site
About the Role RadixArk builds the open-source AI infrastructure behind SGLang and Miles, used by developers and enterprises around the world. We're looking for a designer to give our brand a ...
Designer
Palo Alto, CA · On-site
About the Role RadixArk builds the open-source AI infrastructure behind SGLang and Miles, used by developers and enterprises around the world. We're looking for a designer to give our brand a ...
RadixArk is an infrastructure-first company focused on building world-class open systems for AI training and inference. The Member of Technical Staff -- Training will work on large-scale distributed ...
RadixArk is an infrastructure-first company focused on building world-class open systems for AI training and inference. The Member of Technical Staff -- Training will work on large-scale distributed ...
RadixArk is an infrastructure-first company focused on building high-performance inference and training systems. The TPU Systems Engineer will work on optimizing model workloads on TPU hardware and ...
RadixArk is an infrastructure-first company focused on building high-performance inference and training systems. The TPU Systems Engineer will work on optimizing model workloads on TPU hardware and ...
Designer
Palo Alto, CA · On-site
About the Role RadixArk builds the open-source AI infrastructure behind SGLang and Miles, used by developers and enterprises around the world. We're looking for a designer to give our brand a ...
Designer
Palo Alto, CA · On-site
About the Role RadixArk builds the open-source AI infrastructure behind SGLang and Miles, used by developers and enterprises around the world. We're looking for a designer to give our brand a ...
Corporate Counsel
Palo Alto, CA · Hybrid
This is a rare opportunity to define what great looks like for Legal at RadixArk - and to build it yourself. We move fast, operate with a sense of urgency, and expect the same from everyone on the ...
Corporate Counsel
Palo Alto, CA · Hybrid
This is a rare opportunity to define what great looks like for Legal at RadixArk - and to build it yourself. We move fast, operate with a sense of urgency, and expect the same from everyone on the ...
Equal Opportunity RadixArk is an Equal Opportunity Employer and is proud to offer equal employment opportunity to everyone regardless of race, color, ancestry, religion, sex, national origin, sexual ...
Equal Opportunity RadixArk is an Equal Opportunity Employer and is proud to offer equal employment opportunity to everyone regardless of race, color, ancestry, religion, sex, national origin, sexual ...
Product Manager
Palo Alto, CA · On-site
RadixArk is an infrastructure-first company focused on building world-class open systems for AI infrastructure. They are seeking a Product Manager to define and drive the product roadmap, collaborate ...
Product Manager
Palo Alto, CA · On-site
RadixArk is an infrastructure-first company focused on building world-class open systems for AI infrastructure. They are seeking a Product Manager to define and drive the product roadmap, collaborate ...
About the Role RadixArk is seeking a Product Marketing Manager to own how SGLang, Miles, and our open source infrastructure are positioned and perceived across the market. SGLang already has 20K ...
About the Role RadixArk is seeking a Product Marketing Manager to own how SGLang, Miles, and our open source infrastructure are positioned and perceived across the market. SGLang already has 20K ...
Technical Program Manager
Palo Alto, CA · On-site
$151K - $196K/yr
About the Role As a Technical Program Manager at RadixArk, you'll drive the execution of complex, cross-functional programs across our inference and training infrastructure. You'll partner closely ...
Technical Program Manager
Palo Alto, CA · On-site
$151K - $196K/yr
About the Role As a Technical Program Manager at RadixArk, you'll drive the execution of complex, cross-functional programs across our inference and training infrastructure. You'll partner closely ...
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Full-time
Posted 17 days ago
Job description
About The Role
RadixArk is building the infrastructure layer for frontier AI systems - unified inference, training, and evaluation stacks powering next-generation LLM applications at scale. Our platform integrates high-performance model serving, RL pipelines, and large-scale distributed systems across GPUs, TPUs, and emerging accelerators. We work at the intersection of systems engineering, AI research, and developer experience. We are looking for a world-class Full Stack Engineer who thrives in high-ambiguity environments and wants to build foundational tools for the next decade of AI.
Requirements
Technical Excellence
Bonus (High Impact)
Responsibilities
You will own end-to-end product surfaces across our developer platform:
You will not just "write UI."
You will build the control plane for frontier AI systems.
Your work will directly power:
This is not CRUD dashboard engineering.
This is building the operating system for AI builders.
About RadixArk
RadixArk is an infrastructure-first company built by enggineers who've shipped production Al systems,created SGLang (20K+ GitHub stars,the fastest open LLM serving engine),and developed Miles(our large-scale RL framework).
We're on a mission to democratize frontier-level Al infrastructure by building world-class open systems for inference and training.
Our team has optimized kernels serving billions of tokens daily, designed distributed training systems coordinating 10,000+ GPUs, and contributed to infrastucture that powers leading Al companies and research labs.
We're backed by well-known infrastructure investors and partner with NVIDIA, Google,AWS,and frontier Al labs.
Join us in building infrastructure that gives real leverage back to the Al community.Compensation
Compensation
We offer competitive compensation with equity, comprehensive health benefits, and flexible work arrangements. Compensation is determined by location, level, and experience.
Equal Opportunity
RadixArk is an Equal Opportunity Employer and is proud to offer equal employment opportunity to everyone regardless of race, color, ancestry, religion, sex, national origin, sexual orientation, age, citizenship, marital status, disability, gender identity, veteran status, and more.
RadixArk is building the infrastructure layer for frontier AI systems - unified inference, training, and evaluation stacks powering next-generation LLM applications at scale. Our platform integrates high-performance model serving, RL pipelines, and large-scale distributed systems across GPUs, TPUs, and emerging accelerators. We work at the intersection of systems engineering, AI research, and developer experience. We are looking for a world-class Full Stack Engineer who thrives in high-ambiguity environments and wants to build foundational tools for the next decade of AI.
Requirements
Technical Excellence
- 4+ years of professional full stack engineering experience
- Based in Palo Alto, CA (Hybrid) / Remote (U.S.)
- Deep experience in:
- Frontend: React / Next.js / TypeScript
- Backend: Python (FastAPI / Django) or Node.js
- RESTful and/or gRPC API design
- Strong understanding of distributed systems concepts
- Experience building systems that handle real-time streaming or high-throughput workloads
- Strong database design skills (Postgres, Redis, etc.)
- Familiarity with containerized environments (Docker, Kubernetes)
- Strong software engineering fundamentals: testing, CI/CD, version control, design reviews
Bonus (High Impact)
- Experience building developer tools or infrastructure platforms
- Experience in ML infrastructure, model serving, or AI tooling
- Familiarity with observability stacks (Prometheus, Grafana, OpenTelemetry)
- Experience with WebSockets or streaming architectures
- Performance optimization at scale
- Experience building internal platforms used by engineers
Responsibilities
You will own end-to-end product surfaces across our developer platform:
- Design and implement high-performance web applications for AI infrastructure tooling
- Build scalable backend systems that interact with distributed inference and training services
- Architect APIs and service layers that serve enterprise and research customers
- Develop observability dashboards, experiment tracking UIs, and performance analytics tools
- Optimize real-time streaming interfaces for model inference workflows
- Work closely with ML engineers and infra teams to expose complex systems through intuitive product surfaces
- Lead architectural decisions for frontend-backend communication, state management, and performance tuning
- Ship production-grade features in fast iteration cycles
You will not just "write UI."
You will build the control plane for frontier AI systems.
Your work will directly power:
- Large-scale LLM inference systems
- Reinforcement learning training platforms
- Evaluation and experimentation frameworks
- Developer-facing AI infrastructure products
This is not CRUD dashboard engineering.
This is building the operating system for AI builders.
About RadixArk
RadixArk is an infrastructure-first company built by enggineers who've shipped production Al systems,created SGLang (20K+ GitHub stars,the fastest open LLM serving engine),and developed Miles(our large-scale RL framework).
We're on a mission to democratize frontier-level Al infrastructure by building world-class open systems for inference and training.
Our team has optimized kernels serving billions of tokens daily, designed distributed training systems coordinating 10,000+ GPUs, and contributed to infrastucture that powers leading Al companies and research labs.
We're backed by well-known infrastructure investors and partner with NVIDIA, Google,AWS,and frontier Al labs.
Join us in building infrastructure that gives real leverage back to the Al community.Compensation
Compensation
We offer competitive compensation with equity, comprehensive health benefits, and flexible work arrangements. Compensation is determined by location, level, and experience.
Equal Opportunity
RadixArk is an Equal Opportunity Employer and is proud to offer equal employment opportunity to everyone regardless of race, color, ancestry, religion, sex, national origin, sexual orientation, age, citizenship, marital status, disability, gender identity, veteran status, and more.