Python Jobs

Scale AI

Scale's Global Public Sector team is dedicated to leveraging AI to tackle significant challenges within the public sector worldwide. This role involves collaborating directly with public sector clients to rapidly develop full-stack AI applications that address their most critical needs and create substantial impact for citizens. You will be instrumental in building custom AI applications, generating high-quality training data for LLMs, and providing advisory services to expand AI's reach. Scale is at the forefront of enabling the public sector's transformation through cutting-edge technology, and this position offers an opportunity to be a founding member of a growing team shaping the future of AI in this domain.

Scale AI

Scale's Robotics business unit is focused on solving the data challenges in Physical AI for Robotics, Autonomous Vehicles, and Computer Vision. In this role, you will be a key contributor to building production systems for robotics data collection, model training pipelines, and evaluation infrastructure. You will have the opportunity to own significant parts of our robotics platform, collaborate directly with cutting-edge robotics and AV customers, and influence the future of embodied AI systems.

Google DeepMind

Google DeepMind's research team is dedicated to tackling complex challenges in online information quality, advancing the state of the art by developing innovative solutions to detect manipulated media and misleading narratives. The team leverages interdisciplinary work spanning provenance analysis and the creation of tools for AI-assisted information literacy, with a focus on ensuring the integrity of digital discourse and a safer online environment. This role involves researching and building multimodal reasoning systems and Vision-Language Models (VLMs) to assess the trustworthiness of media on the internet, with a passion for advancing information literacy using machine learning and computational techniques.

LangChain is seeking a Senior Technical Support Engineer to lead customer support for highly technical users, including AI engineers and infrastructure architects. You will be instrumental in helping teams debug production LLM applications and agents, enhance AI observability and evaluations, and resolve critical issues. This role also involves defining world-class technical support standards for modern AI platforms and contributing to the evolution of our products and documentation.

$130k - $195k

Decagon is seeking an engineer to join the Agent Engineering team, which deploys mission-critical AI agents to customers, impacting millions of users and driving company growth. In this role, you will build on the industry-leading AI agent platform, collaborate directly with customers, and devise long-term, scalable solutions to deliver magical support experiences. You will have complete ownership and autonomy in building and shipping best-in-class AI agents from initial implementation through continuous iteration, working directly with leaders across various industries to solve user needs with reliable and intuitive AI agents. This role is for someone who dives deep into complex system challenges and builds elegant solutions that scale to millions of users.

£125k - £180k

Applied Intuition is seeking a Software Engineer to join their Autonomy Framework team. This role involves developing core software systems for a cutting-edge framework that enables collaborative autonomy behaviors in multi-domain environments. You will integrate with domain-specific platforms and support multidisciplinary engineering efforts, working on foundational software for autonomous systems operating in complex, real-world scenarios. The position offers the opportunity to collaborate with autonomy engineers, domain experts, and product teams to build robust, scalable frameworks for air, ground, and maritime domains.

$10k - $20k

Mistral AI

Mistral AI is seeking an Applied AI Engineer, Fullstack Software Engineer to facilitate the adoption of its products among customers operating in critical, sovereign, and highly regulated environments. You will be an integral part of our Applied AI Engineering team, helping drive the successful deployment of Mistral AI products for critical infrastructure, sovereign institutions, and strategic public or private-sector organizations. This is a hands-on, customer-facing engineering role where you will design, build, and deploy full-stack AI applications tailored to complex and sensitive environments, working hand-in-hand with customers from pre-sale to post-implementation.

Mistral AI

Mistral AI is seeking a Technical Lead, Applied AI to drive the technical strategy, execution, and delivery of complex AI solutions for enterprise customers. This role involves leading project teams of Applied AI Engineers to ensure successful deployment of Mistral AI products and the development of high-impact, scalable AI use cases. You will serve as the primary technical point of contact for strategic customers, guiding them through the entire lifecycle from pre-sales to post-implementation, while collaborating with research, product, and engineering teams to shape future offerings. The position bridges cutting-edge AI research with real-world enterprise applications, ensuring solutions are robust, scalable, and aligned with customer needs and Mistral's technological vision.

thinkingmachines

Thinking Machines Lab is seeking pre-training researchers to join their mission of advancing collaborative general intelligence. This role is central to developing the next generation of AI models by blending research with large-scale data engineering. You will be responsible for assembling pre-training datasets and data systems, designing and implementing methods for sourcing, curating, and analyzing data for quality and performance. The position involves working with automated pipelines and human-in-the-loop processes, contributing both scientific insights and production-grade code. It's an ideal opportunity for individuals passionate about the intersection of data, machine learning, and systems, and who are eager to shape the future of AI.

$350k - $475k

thinkingmachines

Thinking Machines Lab is seeking researchers to bridge the gap between raw AI intelligence and useful, safe, and collaborative systems. This role focuses on post-training data research, combining human insight and machine learning techniques to capture and steer model behavior based on human preferences. You will be responsible for translating research ideas into actionable data through labeling and collection campaigns, understanding data quality science, and developing metrics to measure the impact of data and training interventions. The position also involves exploring new paradigms for human-AI interaction and scalable oversight, blending research, data operations, and technical implementation to advance human-centered AI systems. This role requires both fundamental research and practical engineering, making it ideal for individuals who enjoy deep theoretical exploration and hands-on experimentation.

$350k - $475k

thinkingmachines

Thinking Machines Lab is seeking an infrastructure engineer to lead and enhance the security infrastructure for their foundation models. This role involves working across compute, storage, networking, and data platforms to ensure systems are secure, reliable, and scalable. The engineer will define security controls, architecture, and tooling, integrating security by default into the platform. Collaboration with research and product teams will be key to enabling rapid progress while maintaining robust protection for models, data, and environments.

$200k - $475k

Harvey

Harvey is transforming legal and professional services by combining agentic AI, an enterprise-grade platform, and deep domain expertise. We are a fast-scaling company with strong product-market fit, seeking individuals who want to do the best work of their careers. The Developer Experience team is crucial for maintaining our rapid growth, building CI/CD systems, internal frameworks, and platform guardrails that enable all engineers to ship AI features quickly and safely. As a Software Engineer on this team, you will create systems to maximize engineer velocity and efficiency, working across the tech stack to instill reliability, automation, and simplicity into developer workflows. You'll also have a unique opportunity to apply AI to developer productivity, shaping the future of software development within an AI-native company.

$231k - $340k

Cohere

Cohere is seeking a Research Intern to collaborate with researchers and tools on designing and implementing novel research ideas and shipping state-of-the-art models to production. Interns will have the opportunity to work on various teams covering base model training, retrieval augmented generation, data and evaluation, safety, and finetuning, or any research area relating to LLMs. This role offers a chance to broaden research connections while gaining deep experience in a growing AI startup.

Harvey

Harvey is transforming legal and professional services by combining agentic AI, an enterprise-grade platform, and deep domain expertise. This role offers a unique opportunity to build a generational company at an inflection point, with strong product-market fit and investor support, scaling rapidly to define a new category. The team operates with intensity, ownership, and a commitment to the mission, valuing decisiveness, simplicity, and continuous improvement. As a Software Engineer, Agents, you will be instrumental in building the systems that make AI agents indispensable to legal professionals, designing environments, managing context windows, creating tools, and developing evaluations to unlock new capabilities.

$231k - $340k

Harvey

Harvey is transforming legal and professional services by combining agentic AI, an enterprise-grade platform, and deep domain expertise. This role offers a unique opportunity to build a generational company at an inflection point, with strong product-market fit and investor support, scaling rapidly to define a new category. The team operates with intensity, ownership, and a commitment to the mission, valuing decisiveness, simplicity, and continuous improvement. As a Software Engineer, Agents, you will be instrumental in building the systems that make AI agents indispensable to legal professionals, designing environments, managing context windows, creating tools, and developing evaluations to unlock new capabilities.

$231k - $340k

Reflection ai

Reflection.AI is seeking a Member of Technical Staff - Security Software Engineer to establish our Application Security function from the ground up. This role offers significant autonomy to design and implement solutions across various Security Engineering projects, including AI agent incident detection and response, and internal AI agents. The ideal candidate is a self-starter who excels in high-ownership, low-structure environments and possesses a strong "0 to 1" mindset, ready to build and innovate within a talent-dense team focused on making intelligence open and accessible.

LangChain is seeking a GTM Engineer to act as the "First Customer" for their tools, building AI-native systems to power technical support, onboarding, and customer success. This role involves owning the technical roadmap for user support, aiming to drive case deflection and enhance the onboarding experience by creating autonomous agents that resolve complex technical issues. The ideal candidate is a builder-operator who can identify customer journey friction points and implement production-grade agentic solutions.

$160k - $180k

Nabla is seeking a Senior Front-End Engineer to join a cross-functional squad focused on developing high-impact user experiences across web, desktop, browser extension, and mobile interfaces. This role involves setting UI quality and performance standards, evolving the design system, architecture, and tooling. You will lead the development of complex front-end features, drive technical decisions, partner with Design to create intuitive experiences, and collaborate with Product, ML, and Back-End teams to ship full-stack features. The position also includes mentoring other engineers and contributing to team best practices. Nabla is an AI company dedicated to improving healthcare by streamlining clinical documentation and workflows, backed by significant funding and led by experienced AI engineers.

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 rare chance to help build a generational company at a true inflection point, scaling fast and defining a new category. The work is ambitious, the bar is high, and the opportunity for growth is unmatched. As a Staff Software Engineer on the Core Infrastructure team, you will play a critical role in designing and building new infrastructure systems while scaling and strengthening existing ones. Our infrastructure powers every user interaction with Harvey, processing billions of prompt tokens and millions of daily requests across our global legal AI platform. You'll work in an environment balanced between innovation and operational excellence, ensuring Harvey remains resilient and efficient as it scales products, regions, customers, and usage. Your contributions will directly impact the reliability, scalability, and security of our platform.

$201k - $264k

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 rare chance to help build a generational company at a true inflection point, scaling fast and defining a new category. The work is ambitious, the bar is high, and the opportunity for growth is unmatched. 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 Core Infrastructure team, you will play a critical role in designing and building new infrastructure systems while scaling and strengthening existing ones. Your contributions will directly impact the reliability, scalability, and security of our platform as we serve the world's leading law firms and professional service providers.

$236k - $290k