Rust Jobs

X Ads is a high-leverage product area at X, focused on rebuilding its platform with modern infrastructure and AI at its core. This is an opportunity to join a small, fast-moving team where engineers can take on significant ownership, learn from experienced colleagues, and ship impactful products. The role involves working across product, backend systems, infrastructure, and AI-powered features that directly influence a substantial portion of X's revenue. We are seeking high-slope software engineers eager to transform the X Ads Platform using SpaceXAI's infrastructure and AI stack, particularly those early in their careers who learn quickly, ship fast, and are excited to understand and improve large-scale advertising systems with AI.

$150k - $350k

SpaceXAI is seeking a Site Reliability Engineer focused on campus reliability to design and implement systems that ensure the availability and trustworthiness of our campus infrastructure. This role involves technically leading cross-discipline incident responses and building mechanisms to minimize future incidents. You will act as the central point of contact across compute, network, storage, power, and cooling systems, requiring strong incident leadership, fleet-scale observability expertise, and the ability to drive reliability improvements across both software and facility domains.

The Sandbox service team at SpaceXAI builds and maintains a secure, scalable system that gives our models safe, controlled access to computational environments. This infrastructure powers critical workloads across training and product, enabling models to run code, build software, interact with tools, and even control applications with user interfaces. We provision containers and virtual machines on large-scale clusters, granting models interactive control over these remote environments. Our work spans the full stack: from orchestrating massive jobs and resource scheduling at the cluster level, to fine-tuning filesystem performance on nodes. The Sandbox service enables Grok to safely run and test code in real-time for user queries, and supports reinforcement learning in training, where models interactively explore tools ranging from compilers to productivity apps.

£107k - £262k

SpaceXAI is seeking an engineer to join the RL infrastructure team to help develop our RL training framework. The team is small, highly motivated, and focused on engineering excellence, operating with a flat organizational structure where all employees are expected to be hands-on and contribute directly to the company's mission. This role requires strong initiative, curiosity, work ethic, prioritization, and communication skills.

$180k - $440k

SpaceXAI's mission is to create AI systems that can accurately understand the universe and aid humanity in its pursuit of knowledge. The RL infrastructure team is looking for an engineer to help with low precision RL training and inference. This role involves designing and optimizing the inference stack for all shapes of RL workloads, analyzing and addressing performance bottlenecks in large-scale RL systems, and working closely with the modeling team to efficiently implement novel RL techniques and algorithms.

$180k - $440k

The Imagine team is redefining AI-driven media experiences for Grok users worldwide. As a Product Safety Engineer on the Imagine team, you will build the critical safety systems and infrastructure that ensure Grok’s multimodal generation capabilities (images, video, audio, and beyond) are powerful, delightful, and responsibly deployed. You’ll design and scale safeguards, detection systems, and evaluation frameworks that prevent harm while preserving creativity and user freedom. Your work will directly shape how millions of users experience generative media — balancing rapid innovation with rigorous safety, trustworthiness, and alignment with SpaceXAI's mission. If you’re a driven engineer passionate about AI safety, content integrity, and building robust systems that protect users without stifling innovation, this is your opportunity to make a lasting impact at the frontier of multimodal AI.

$180k - $440k

SpaceXAI is seeking a multimodal engineer for the Imagine Model Team to develop cutting-edge AI experiences beyond text, focusing on high-fidelity understanding and generation across image and video modalities, with audio integration where it enhances visual content. Responsibilities cover data curation, modeling, training, inference serving, and product integration across pretraining and post-training phases. The role involves close collaboration with product teams to advance model frontiers and deliver exceptional end-to-end user experiences.

$180k - $440k

The Enterprise Agents Engineering Team at SpaceXAI focuses on solving complex problems in applied AI, specifically integrating with diverse systems, orchestrating intricate workflows, and leveraging AI to revolutionize business operations. This role involves building full-stack solutions with end-to-end product ownership, from initial concept to deployment. You will collaborate closely with the team to integrate advanced AI technologies into dependable, user-focused solutions, employing an iterative development process. Working hand-in-hand with customers, you will gather feedback, refine features, and evolve products to meet real-world demands.

SpaceXAI is building AI systems to understand the universe and aid humanity. The team is small, highly motivated, and focused on engineering excellence, operating with a flat structure where all employees are hands-on and contribute directly to the mission. This role requires strong communication skills and the ability to share knowledge concisely. The ideal candidate will have a good understanding of building highly scalable and reliable production infrastructure, with familiarity in compiled languages like Rust, C++, or Go being highly beneficial.

£107k - £262k

We are seeking a skilled and innovative Application Security Engineer to join our technology-driven company. In this role, you will be responsible for ensuring the security and integrity of our cloud-native applications and systems throughout the software development lifecycle, with a particular focus on code security, CI/CD pipelines, and emerging AI technologies. Our team is small, highly motivated, and focused on engineering excellence, operating with a flat organizational structure where all employees are expected to be hands-on and contribute directly to the company’s mission.

$100k - $258k

Applied Intuition is seeking a Senior Software Engineer to join their Cloud Infrastructure team. This role is responsible for building and maintaining the platform that powers the company's AI workloads and enterprise AI platform, Dana. The team operates in a cloud-native and cloud-agnostic environment, utilizing Kubernetes and managing infrastructure as code across the full stack, including compute, networking, storage, and observability. The position involves designing and operating multi-cluster Kubernetes infrastructure, building multi-tenant platform primitives, and orchestrating secure execution environments for agentic workloads. This is a hands-on infrastructure role with significant platform-building and solutions-architecture responsibilities, requiring close collaboration with internal engineering teams and ownership of architectural decisions and incident response.

$60k - $300k

Harvey

Harvey is transforming how legal and professional services operate by combining frontier agentic AI, an enterprise-grade platform, and deep domain expertise. This is a unique opportunity to help build a generational company at an inflection point, with strong product-market fit and investor support. The team moves fast, takes ownership, and is deeply committed to the mission, valuing decisiveness, simplicity, and continuous improvement. As a Staff Software Engineer on the Model Infrastructure team, you will lead the design and development of the systems powering all AI requests at Harvey, partnering with AI Research, Product Engineering, and external model providers to build a highly reliable, scalable, observable, and efficient platform.

$231k - $340k

Harvey

Harvey is transforming how legal and professional services operate by combining frontier agentic AI, an enterprise-grade platform, and deep domain expertise. This role offers a chance to help build a generational company at an inflection point, with strong product-market fit and investor support. The team moves fast, takes ownership, and is deeply committed to the mission, operating with intensity and pushing for excellence. As a Staff Software Engineer on the Model Infrastructure team, you will lead the design and development of the systems that power every AI request at Harvey, partnering closely with AI Research, Product Engineering, and Infrastructure to build a highly reliable, scalable, observable, and efficient platform.

$193k - $290k

As a Software Engineer on Applied AI, you will build, deploy, and operate systems that bridge frontier AI research and data delivery. This is a high-ownership, deeply technical role where you will tackle ill-defined problems, prototype rapidly with researchers and customers, and transition systems from early experiments to reliable, scalable production. You will manage projects end-to-end, including requirements gathering, creating data pipelines, and enhancing model-adjacent infrastructure, while collaborating with frontier AI labs and internal teams to deliver impactful applied AI solutions.

Anthropic

The Safeguards ML Infra team is responsible for designing, building, and operating the production infrastructure that ensures the safety of Claude's AI systems. This role is central to ensuring safeguards are correctly configured and deployed for model launches and managing the rollout of new safety classifiers. You will be responsible for verifying that the correct safeguards are active across all platforms, detecting and resolving configuration drift, and automating manual processes to improve efficiency and reliability. The team plays a critical role in every frontier model release, owning the operational aspects of deploying and verifying safety measures across various platforms and leading incident response when issues arise.

Cloudflare's Emerging Technologies & Incubation team builds and launches bold new products on Cloudflare's edge network. This role is on the Durable Objects team, which powers stateful serverless applications for Cloudflare customers. You'll help evolve the runtime and the low-level routing and storage systems that support real-time chat, multiplayer games, AI agents, and other stateful workloads at scale. We are looking for builders who see the cracks in the Internet and have the AI-native curiosity to create solutions using the latest tools, valuing curiosity over bureaucracy.

Cloudforce One is Cloudflare's threat operations and research team, focused on identifying and disrupting cyber threats from criminal activity to nation-state sponsored attacks. The team collaborates with external organizations and internal Cloudflare teams to develop operational tradecraft and expand threat intelligence for expedited threat hunting and remediation. Members leverage vast data from Cloudflare's global network to analyze unique data points at scale, synthesizing findings into actionable threat intelligence to protect customers. This role involves working across the full breadth of Cloudflare Products, tackling critical problems like redesigning detection pipelines, deploying edge capabilities, building agentic AI workflows, and architecting massive data systems. The ideal candidate is an architect, threat analyst, and disruptor who can rethink how threats are detected, analyzed, and neutralized across a global network.

Cloudflare is seeking an experienced, product-minded Principal Software Engineer to join the Town Lake team. This team is responsible for making vast amounts of data accessible and valuable across the company, building a modern, agentic-first data lakehouse platform. You will play a key role in taking this fast-growing internal platform to become the foundational data infrastructure for the entire company. This is a high-impact, high-visibility role where you will lead technical architecture and drive implementation for critical services, leveraging AI deeply to accelerate development and create innovative solutions. If you are a builder who thrives on solving complex problems and shaping the future of data platforms, this opportunity is for you.

Join the Workers Deploy & Config team as a Principal Engineer, the most senior technical role on the team behind Cloudflare’s serverless edge developer platform. You’ll build the critical large-scale systems that let developers deploy, configure, and manage Workers globally, powering everything from simple static sites to full-stack applications serving millions of users. This team sits at the foundation of Cloudflare’s developer platform, including Pages and R2. The work spans distributed systems, high-traffic APIs, performance, reliability, and developer experience at global scale.

$220k - $303k

Cloudflare is seeking a Principal Engineer to join the Developer Tooling team, which builds internal platforms to enhance the velocity and developer experience for Cloudflare's engineering teams. This role is hands-on, with both engineering and operational responsibilities, focusing on AI-assisted development. You will build and operate AI tools used by thousands of engineers daily, taking end-to-end ownership of projects, providing technical mentorship, and improving the experience for the engineers you build for. The team is responsible for AI-assisted development across all of Cloudflare engineering, with significant growth in adoption.