Tech jobs
Job listings
Member of Technical Staff - Multimodal Understanding
Build and optimize large-scale multimodal AI systems (image, video, audio, text) from data pipelines to real-time interactive models, working across the full stack in a fast-paced research environment.
Software Engineer - Observability
Build and maintain a high-scale observability platform handling metrics, logs, and tracing to monitor and debug AI systems at a cutting-edge space-tech company.
Software Engineer - Real-Time Storage
Designs and builds exabyte-scale storage systems (object, key/value, caching, vector) for AI infrastructure serving 600M+ users, using C++, Rust, or JVM languages.
Software Engineer - X Money
Builds and scales a global payment network’s backend services, APIs, and microservices for a high-volume financial platform in a fast-paced startup environment.
Member of Technical Staff - X Money
Builds and optimizes backend microservices in Go, Postgres, and Kafka for a new global payments network serving 600M+ users, while collaborating on fraud detection, compliance, and full-stack internal tools.
Software Engineer, Ads Product
Builds and maintains X’s ad platform, using backend systems, AI, and modern infrastructure to improve ad delivery, targeting, and revenue at massive scale.
Software Engineer - Network (C++)
Develops and maintains ultra-low-latency, high-bandwidth networking software for a massive AI supercomputer fabric using C++, optimizing performance for AI model training at scale.
Member of Technical Staff - RL Inference
Designs and optimizes low-precision reinforcement learning inference systems for large-scale workloads, working with Python, C++, Rust, PyTorch, JAX, and CUDA.
Software Engineer - X Data Engineering
Builds and operates distributed data pipelines processing billions of events daily to power AI-driven insights, using Python, Spark, Kafka, Flink, and SQL in Palo Alto.
Member of Technical Staff - RL Training Framework
Develops and optimizes a reinforcement learning training framework for AI systems, working with distributed systems and languages like Python, JAX, Rust, or C++.
Software Engineer - Platform Infrastructure (Rust, C++)
Builds and optimizes a large-scale distributed system for AI training on supercomputing clusters using Rust and C++, with deep involvement in Linux kernel, networking, and Kubernetes.
ML Infrastructure Engineer
Build and optimize GPU-based ML infrastructure for large-scale AI systems, including training frameworks and data pipelines, while collaborating with ML teams to productionize models.
Software Engineer - X Developer Platform
Build and scale the X Developer Platform APIs that power real-time data delivery, search, and developer tools for a global social media platform, using distributed systems and cloud services.
Software Engineer - Search Infrastructure
Build and optimize large-scale search infrastructure handling millions of transactions, focusing on real-time indexing, serving, and relevance for AI-powered products.
Senior Software Engineer, Backend
About Posh We are all social creatures, but the dominant “social” companies today have evolved into digital loneliness machines, driving isolation, anxiety, and mental health challenges around the world. Human…