Develop and optimize Ray Core C++ backend for scalable distributed applications, focusing on performance, reliability, fault tolerance, and testing. Requires 5+ years experience in C/C++, distributed systems, algorithms, and systems programming.
Salary not listed
Hybrid5+ YOEBackend Engineering
About the role
Responsibilities
Lead cross-team projects while mentoring junior team members
Develop high quality open source software to simplify distributed programming (Ray)
Identify, implement, and evaluate architectural improvements to Ray core
Improve the testing process for Ray to make releases as smooth as possible
Communicate your work to a broader audience through talks, tutorials, and blog posts
Requirements
At least 5 years of relevant work experience
Experience in building scalable and fault-tolerant distributed systems
Extensive experience working in C/C++ and on low level operating systems
Solid background in algorithms, data structures, system design
Preferred
Knowledge of distributed model training and inference (e.g. tensor parallel, pipeline parallel)
Backend Engineer building and optimizing core document workflows (viewing, editing, embeds, exports) and greenfield projects in a Django monolith. Requires 3+ years backend experience, strong Python skills, performance optimization, and automated testing.
140k – 185k/yr
Hybrid3+ YOEBackend Engineering
Software Engineer, Codex -Enterprise Controls
OpenAISan Francisco, CA
Build and operate the enterprise control plane for OpenAI's Codex AI software engineer, focusing on security, governance, identity, access controls, encryption, and policy enforcement systems for large organizations.
230k – 385k/yr
Hybrid5+ YOEBackend Engineering
Software Engineer III
ZoomInfoBethesda, MD +1
Software Engineer III designing, building, and maintaining scalable backend systems with Java, Node.js/NestJS, Kafka, and cloud technologies (AWS/GCP). Requires Master's in CS + 2 years (or Bachelor's + 4 years) backend experience, microservices, databases, and REST APIs.
112k – 176k/yr
Hybrid4+ YOEBackend Engineering
Software Engineer, Upstart Bank
UpstartUnited States
Software Engineer building scalable backend systems, services, and APIs for Upstart Bank, a modern AI-enabled national bank. Translate regulatory and business requirements into reliable software in a fintech environment; 4+ years backend/full-stack experience required.
14k – 187k/yr
Remote4+ YOEBackend Engineering
Software Engineer, Workers Deploy & Config
CloudflareNew York, NY +4
Build and scale the control plane for Cloudflare Workers, the serverless edge platform. Design distributed systems, high-traffic APIs, storage schemas, and own production reliability for services powering Pages and R2. Requires strong Go experience plus knowledge of observability, databases, and Kubernetes.