Python Jobs

Anthropic

Anthropic's Environments organization is responsible for building and maintaining the infrastructure that enhances Claude's capabilities through reinforcement learning. This includes developing frameworks for researchers to create environments and managing the infrastructure that runs them, with a core mission to productionize research. The role involves embedding with research teams to understand their workflows and designing frameworks and APIs that accelerate their progress, ensuring these systems are understandable, ownable, and maintainable. A key aspect is also ensuring the health, maintainability, monitoring, and ease of triage for production RL runs.

Anthropic

Anthropic is seeking a Technical Documentation and Content Engineer to own the documentation for Claude apps. This role involves more than traditional technical writing, focusing on unifying the documentation estate across multiple product surfaces. You will be responsible for the architecture, standards, and engineered systems that maintain high quality at scale. This is a content and systems ownership role where you will curate content, set quality bars, and build automation for review, maintenance, and quality enforcement. You will collaborate with engineers building documentation tooling.

Anthropic

Education Labs builds paradigms to help people become genuinely more capable. This role is a blend of researcher, product builder, and interaction designer, focused on studying how AI transforms human capability and shipping features based on discoveries. You will have significant creative license to define "good" experiences, exploring new interaction patterns rather than optimizing existing ones. The focus is on experiences that make users progressively more capable, curious, and empowered over time, integrating skill development into product design and measuring success by user growth. You will operate as a one-person technical shop, prototyping ideas, establishing technical direction, and shipping production-quality features to millions of users, requiring strong product instincts and clean interface design sensibilities balanced with comfort in ambiguity and frontier thinking.

Anthropic

Anthropic's Safeguards organization is responsible for building systems that ensure Claude is safe to use at scale. The Account Compromise team focuses on protecting users from losing account control and preventing compromised accounts from being used to abuse the platform. This role involves owning the architecture for detecting, containing, and remediating account compromise across Claude and its Developer Platform, making key design decisions for other engineers. The work requires deep technical expertise, adversarial problem-solving, threat modeling, and the ability to scope and lead complex, multi-month projects from ambiguous beginnings. You will operate with significant autonomy, driving alignment with various teams and shaping Anthropic's global approach to account security.

Cohere

Cohere is seeking a Data Scientist to join our Analytics and Data Insights team. In this role, you will tackle complex, open-ended problems that shape product and company strategy. You will design and execute experiments, build predictive models, and develop analytics that drive product decisions and demonstrate value to enterprise customers. This position offers the opportunity to own analytical work end-to-end, from framing questions to shipping actionable insights and tools that are relied upon by product leaders, sales teams, and customers.

Anthropic

As a Product Support Specialist, you will be at the forefront of safely deploying AI to the world. Your daily tasks will involve responding to, investigating, and tracking user needs. You will also play a key role in identifying and addressing gaps in our team's technical knowledge, providing high-level support to important customers, and demonstrating a strong commitment to scaling our customer support processes effectively.

Harvey

Harvey is transforming professional services by combining frontier agentic AI, an enterprise-grade platform, and deep domain expertise. We are a fast-growing company with strong product-market fit, seeking individuals who want to do the best work of their careers. 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. You will partner closely with AI Research, Product Engineering, and Infrastructure teams to build a highly reliable, scalable, observable, and efficient platform.

$236k - $290k

Anthropic

The IT Operations team at Anthropic is seeking an IT Support Engineer to ensure every employee can do their best work without friction. As the company grows rapidly, this role will be crucial in onboarding at scale, automating repetitive processes, and continuously improving the employee experience. You will handle support challenges primarily within a macOS environment, contributing to operational improvements and working closely with IT Engineering and Security. This position offers opportunities to grow into more technical infrastructure work over time.

Anthropic

Anthropic is seeking an experienced tech lead to join its Evals Infrastructure team. This role involves building and managing the systems that measure the capabilities of AI models, ensuring these evaluations are fast, reliable, and trustworthy at scale. You will work at the intersection of inference, research, and infrastructure engineering, orchestrating large-scale distributed systems for frontier model evaluations, developing researcher harnesses, and ensuring the reproducibility and interpretability of results. Your work will directly influence the development of AI systems and their alignment with human interests.

Harvey

Harvey is transforming legal and professional services by combining frontier agentic AI, an enterprise-grade platform, and deep domain expertise. We are building a generational company at an inflection point, scaling rapidly and defining a new category. Our team moves fast, takes ownership, and is deeply committed to our mission, operating with intensity and pushing for excellence. We value decisiveness, simplicity, and the understanding that the job is never finished. If you want to do the best work of your career alongside driven individuals, we'd love to build with you.

$231k - $340k

Harvey

Harvey is transforming legal and professional services by combining agentic AI, an enterprise-grade platform, and deep domain expertise. This is an opportunity to join a fast-scaling company at an inflection point, defining a new category in real-time. The team operates with intensity, ownership, and a commitment to continuous improvement, driven by values of decisiveness, simplicity, and a 'job's not finished' mentality. We are looking for individuals who want to do the best work of their careers alongside driven colleagues.

$193k - $290k

Anthropic

As an Applied AI team member, you will be a Pre-Sales architect focused on becoming a trusted technical advisor helping state and local government agencies understand the value of Claude and how they can successfully integrate and deploy it into their technology stack. You'll combine deep technical expertise with customer-facing skills to architect innovative LLM solutions that address complex mission challenges while maintaining high standards for safety and reliability. Working closely with Sales, Product, and Engineering teams, you'll guide customers from initial technical discovery through successful deployment, leveraging your expertise to help them understand Claude's capabilities, develop evals, and design scalable architectures.

WRITER is seeking a Corporate IT Engineer to be the backbone of their internal technology ecosystem. This role involves designing, building, and scaling systems that empower the rapidly growing team, focusing on architecting seamless, secure, and automated experiences across the SaaS and hardware landscape. The engineer will have the opportunity to shape how a leading AI company operates internally, ensuring infrastructure scales with company ambitions. This is a hybrid role based in the London office.

Anthropic

Anthropic is building reliable, interpretable, and steerable AI systems to be safe and beneficial for users and society. As a Safeguards Biological Safety Research Scientist, you will apply your technical skills to design and develop safety systems that detect harmful AI behaviors and prevent misuse by sophisticated threat actors. This role is at the forefront of defining responsible AI safety in the biological domain, translating complex biosecurity concepts into technical safeguards and balancing AI's potential for life sciences research with preventing misuse.

Cartesia is seeking a Product Support Engineer to ensure customer success on their AI platform. This role involves resolving complex technical issues, providing world-class support, and collaborating closely with engineering and product teams. You will be a key point of contact for customers, influencing the product roadmap and improving reliability through hands-on feedback and issue reproduction. This is a critical position for shaping the customer experience and setting support standards at a cutting-edge AI company.

Anthropic

As a Product Manager for the Research team at Anthropic, you will own the ideation and deployment of new models and products as we advance frontier, safe AI technology. You will work closely with our research teams to help productize credible applied research and identify high-potential use cases grounded in customer needs. We are looking for someone passionate about developing safe and beneficial artificial intelligence technologies. You thrive in ambiguous environments and can uncover latent, non-obvious use cases for nascent technologies, bringing these insights back to research. Your curiosity about user needs enables you to connect advanced technology to products that deliver real-world value. We seek experienced founders and product managers who can bridge research and ambitious product experimentation, with the ability to create and grow entirely new product categories enabled by AI.

Anthropic

Anthropic's Safeguards team is responsible for developing systems that detect and mitigate misuse of AI models. This role focuses on building and owning the infrastructure that supports the research efforts of this team. You will create the tooling, pipelines, and abstractions that enable researchers to run experiments, train detection methods, and select detections for launch efficiently and reliably. This position bridges the gap between research and production, ensuring fast iteration for researchers and dependable results for detection systems as models evolve. The ideal candidate will have a proven ability to solve large-scale systems and data problems and a strong desire to deepen their machine learning expertise.

Replit

Replit is seeking a Data Scientist to establish and grow its Trust & Safety and Anti-Abuse program. This role involves transforming complex data signals from user behavior, identity, payments, infrastructure, and content into effective measurement systems, detection mechanisms, and decision-making processes. The goal is to protect Replit's users, platform, and financial integrity by making abuse economically unviable while minimizing friction for legitimate users. The position is at the forefront of AI-native abuse, tackling threats like phishing, cryptomining, LLM token farming, and AI agent exploitation, requiring a proactive and adversarial approach to identify, measure, and respond to these evolving challenges.

Anthropic

Anthropic is building reliable, interpretable, and steerable AI systems to be safe and beneficial for users and society. The Endpoint team, also known as Client Platform Engineering, views Anthropic's device fleet as a distributed platform. This role involves owning the entire endpoint platform, from the underlying MDM infrastructure to device configuration, patching, software deployment, and telemetry. You will build zero-touch provisioning, manage rapid patching, and develop automation, including Claude-driven workflows, to reduce operational overhead. This position sits at the intersection of security and developer experience, collaborating with security teams on hardening and compliance, and with development teams to ensure controls do not impede productivity. The work will also establish the foundation for device trust-based access decisions.

Anthropic

As an Applied AI team member at Anthropic, you will be a Pre-Sales architect focused on becoming a trusted technical advisor helping large enterprises understand the value of Claude and paint the vision on how they can successfully integrate and deploy Claude into their technology stack. You'll combine your deep technical expertise with customer-facing skills to architect innovative LLM solutions that address complex business challenges while maintaining our high standards for safety and reliability. Working closely with our Sales, Product, and Engineering teams, you'll guide customers from initial technical discovery through successful deployment. You'll leverage your expertise to help customers understand Claude's capabilities, develop evals, and design scalable architectures that maximize the value of our AI systems.