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Senior engineer builds and scales real-time fraud detection systems in Python/Kotlin for Affirm’s global markets, integrating risk vendors and AI tools while collaborating with cross-functional teams.
Researches and simulates cyber threats by analyzing vulnerabilities, malware techniques, and 1-day exploits across Windows, Linux, Mac, Docker, and cloud environments to improve enterprise security posture.
Leads AI-powered cloud management product (Gemini Cloud Assist) by defining strategy, roadmap, and user experiences for agentic AI features in cloud operations and application lifecycle management.
Lead complex, multi-disciplinary projects for Google Cloud, coordinating engineering teams to build mission-critical systems that power Google Cloud’s global business operations.
Lead long-haul planning for Google’s global cloud networking infrastructure, coordinating teams to design and acquire scalable fiber networks and data center assets for optimal performance and cost.
Build and test iOS apps for Google’s XR and mobile platforms, integrating AI to create seamless, context-aware user experiences at scale.
Lead product strategy and roadmap for Wallapop’s marketplace, collaborating with engineering and design to scale a 2nd-hand ecommerce platform across Spain, Italy, and Portugal.
Owns the full lifecycle of advanced EO/IR remote sensing instruments for space missions, coordinating systems engineering, hardware teams, and suppliers to deliver flight-ready payloads on schedule and budget.
Senior quant researcher in Hong Kong builds short-term price-prediction signals for high-frequency delta-one trading using large time-series datasets, C++/Python, and machine learning.
Builds and maintains the high-performance platform that enables seamless, low-downtime migrations to Google Cloud SQL, working across distributed systems and large-scale infrastructure.
Build and maintain Wallapop’s iOS app using Swift, UIKit/SwiftUI, and RxSwift, focusing on clean architecture and user experience in a Barcelona-based hybrid team.
Oversee APAC transformation programs, including Next Chapter migrations and Finance rollouts, driving governance, value realization, and cross-market alignment for PepsiCo’s GCC expansion.
Design and develop high-speed optical transceivers and systems to scale Google's TPU/GPU superpods and data center infrastructure using photonic and ML techniques.
Builds and maintains the Linux kernel and Android stack for Pixel USB connectivity, enabling seamless charging and data transfer while optimizing hardware reliability across generations.
Build and deploy AI/ML systems for Coupang Eats, including image recognition for restaurant onboarding and automated marketing solutions, to drive operational efficiency and marketplace decisions at scale.
Builds and maintains a browser security extension in TypeScript/React that runs on millions of users' browsers, detecting threats and enforcing policies in real time.
Security Lead responsible for designing and assuring security across Callosum's full-stack AI orchestration platform—APIs, orchestration software, agentic systems, and physical compute—while building and leading the security team.
Callosum is seeking an ML Research Scientist to develop foundational intelligent systems by researching model architectures, learning algorithms, and efficient training methods. The role involves end-to-end research ownership, from hypothesis generation to large-scale implementation, working across a full-stack infrastructure.
Research Engineer building benchmarks and evaluation suites for agentic AI systems—designing rigorous measures for multi-turn, tool-using LLMs, turning traces into structured evidence, and building evaluation/observability infrastructure the whole company relies on.
Builds the runtime and programming model for long-running AI agents that run for weeks across distributed infrastructure, focusing on durability, observability, and secure tool execution.
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