Python Jobs

Harvey

As a Software Engineer on the Site Reliability team at Harvey, you will ensure the reliability, scalability, and performance of our legal AI platform. You’ll join a high-leverage team that sits at the intersection of infrastructure and product, owning the systems that keep our platform fast, secure, and always on. From scaling across 50+ regions to automating mission-critical operations, your work will ensure that Harvey remains resilient as we grow. If you’re passionate about building robust systems and reducing complexity through automation, we’d love to work with you.

Cohere

Cohere is a leading enterprise AI company focused on building cutting-edge foundation AI models and end-to-end products. We are seeking a Manager of Security Engineering to lead and grow a high-performing team, executing the long-term vision for security in alignment with Cohere's product and business goals. This role involves serving as a trusted advisor to leadership, articulating business risks, and prioritizing high-impact initiatives. You will be instrumental in the widespread adoption of AI by ensuring robust security practices across the organization.

$225k - $325k

Replit

The Fraud team is the front line defending Replit's platform from exploitation, detecting and shutting down phishing deployments, preventing cryptomining on free-tier infrastructure, stopping LLM token farming, and keeping bad actors from weaponizing the platform against our users. This is adversarial work where attackers adapt constantly, and you will build the detection systems, heuristics, and automated responses to stay ahead of them. This role offers unique experience applying AI to security problems in production, building guardrails for AI-generated code, detecting prompt injection attacks at scale, and using LLMs as a defensive tool against abuse. You will own problems end-to-end, from identifying emerging abuse patterns to shipping the systems that stop them at scale.

Replit

The Risk team at Replit is on the front lines, defending the platform from exploitation by detecting and shutting down malicious activities. This adversarial role involves staying ahead of constantly adapting attackers by building detection systems, heuristics, and automated responses. You will tackle unique, AI-native problems such as building guardrails for AI-generated code, detecting prompt injection attacks at scale, and leveraging LLMs as a defensive tool against abuse. This is a hands-on opportunity to apply AI to security problems in a production environment with real attackers, owning problems end-to-end from identifying abuse patterns to shipping scalable solutions.

Replit

Replit is seeking a Staff Software Engineer for its Trust & Safety team to defend the platform from exploitation. This role involves detecting and shutting down various forms of abuse, including phishing, cryptomining, and LLM token farming, by building advanced detection systems and automated responses. The position offers unique challenges at the intersection of AI and security, focusing on problems like building guardrails for AI-generated code, detecting prompt injection at scale, and using LLMs defensively. You will own problems end-to-end, from identifying abuse patterns to implementing solutions that stop them at scale, gaining hands-on experience applying AI to security in a production environment with real attackers.

Replit

The Fraud team at Replit is on the front lines, defending the platform from exploitation by detecting and shutting down malicious activities. This adversarial role involves building detection systems, heuristics, and automated responses to combat threats like phishing, cryptomining, LLM token farming, and platform weaponization. You will work on unique AI-native security challenges, including building guardrails for AI-generated code, detecting prompt injection attacks at scale, and leveraging LLMs for defense. This is an opportunity to gain hands-on experience applying AI to security problems in a production environment with real attackers, owning problems end-to-end from identifying abuse patterns to shipping scalable solutions.

Replit

The Risk team at Replit is responsible for defending the platform from exploitation by detecting and shutting down malicious activities such as phishing, cryptomining, and LLM token farming. This role involves adversarial work, where you will build detection systems, heuristics, and automated responses to stay ahead of constantly adapting attackers. A unique aspect of this role is the AI-native nature of Replit's platform, offering hands-on experience applying AI to security problems in a production environment. You will own problems end-to-end, from identifying emerging abuse patterns to shipping systems that stop them at scale, working on novel problems like building guardrails for AI-generated code and detecting prompt injection attacks.

Replit

The Trust & Safety team at Replit is on the front lines, defending the platform from exploitation by detecting and shutting down malicious activities such as phishing, cryptomining, and LLM token farming. This role involves adversarial work, requiring the development of detection systems, heuristics, and automated responses to stay ahead of constantly adapting attackers. A unique aspect of this position is its focus on AI-native security challenges, including building guardrails for AI-generated code, detecting prompt injection attacks at scale, and leveraging LLMs for defense against platform abuse. The role offers hands-on experience applying AI to security problems in a production environment with real attackers, with opportunities to own problems end-to-end from identifying abuse patterns to shipping scalable solutions.

Scale AI

Scale AI is seeking a Director of Forward Deployed Engineering to lead delivery for their largest and most strategic enterprise accounts. This role involves embedding elite engineers with Fortune 500 customers to ship deeply integrated AI agents, overseeing everything from agent design and evaluation to the backend services, data systems, and cloud infrastructure required for production readiness. The Director will partner closely with Product and core Engineering teams to ensure efficient delivery, translating field learnings into reusable platform capabilities. This is a high-autonomy, founder-mindset position focused on owning outcomes end-to-end, scaling a high-performing team, and shaping enterprise AI adoption.

Scale AI

As a Software Engineer on the Machine Learning Infrastructure team, you will build the "Operating System" for our large-scale GPU clusters. You will architect a high-performance training platform that handles the immense complexity of multi-thousand GPU workloads, ensuring every cycle is used efficiently. Your work directly determines the velocity at which our researchers can train and iterate on the world’s most advanced models. The ideal candidate is a systems expert who thrives on solving the orchestration, networking, and reliability challenges that emerge at massive scale. You will partner closely with researchers to build a seamless, resilient environment that transforms raw compute into breakthrough AI.

$216k - $270k

Scale AI

Scale's Physical AI business unit is focused on solving data bottlenecks in Robotics, Autonomous Vehicles, and Computer Vision. This role involves applied research and developing ML pipelines for processing, training, and fine-tuning data collected by Scale, with an emphasis on optimizing algorithms and pipelines for efficient GPU execution in the cloud. You will advance research, shape Scale's offerings, and expand the frontier of data and model evaluation for Physical AI. As an ML Systems Engineer, you will design and build platforms for scalable, reliable, and efficient serving of foundation models tailored for physical agents, powering both internal research and external customer use cases.

$249k - $311k

Scale AI

Our customer base is growing exponentially, and you will be on the front lines of ensuring that the world's most innovative companies become passionate, lifelong, Scale customers. Our Solutions Engineers ensure customers' first experiences with Scale's technology are flawless and lead to a successful long-term partnership. The work will vary daily, and we’re looking for technical experts excited to solve tough problems. As a solution engineer, you will be a part of helping shape our early-stage federal business by re-envisioning our commercial product offerings for our federal clients.

$186k - $233k

Scale AI

The Public Sector software engineers at Scale create core product building blocks for forward-deployed teams developing agentic capabilities across multiple domains. This role involves building systems to ingest and process federal datasets for real-time decision-making in contested environments, and developing novel agentic capabilities such as multi-layered guardrails, optimized data retrieval, and asynchronous agent orchestration. As a Staff Software Engineer, you will orchestrate the implementation of vertical features and horizontal capabilities, mentor other engineers, and define technical strategy for key agentic components. You will ensure system reliability and performance across various security classifications and network types, and communicate technical trade-offs to senior stakeholders to influence long-term product strategy.

$189k - $362k

Scale AI

Scale is seeking Senior Software Engineers to join our Public Sector team. You will build core product components that enable forward-deployed teams to develop agentic capabilities across multiple domains. This involves creating systems to ingest and process federal datasets for real-time decision-making in challenging environments. You will lead the development of new agentic capabilities, including multi-layered guardrails, optimized data retrieval, orchestration of asynchronous agents, automated deviation alerts, and decision-path illustration.

$162k - $311k

Scale AI

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

Scale AI

Scale is seeking a Solutions Engineer to join their growing team and ensure that innovative companies become passionate, lifelong Scale customers. In this role, you will partner closely with Account Executives, Product, and Machine Learning Engineers to guide prospective customers through the pre-sales process. You will deliver customized demos and pilots to secure the "technical win," scope customer technical requirements, and develop actionable Statements of Work (SOWs). Solutions Engineers will also collaborate with the delivery team on initial implementations, leveraging expert Scale product and Generative AI knowledge to design solutions that address customer needs and pain points. This role requires strong relationship-building, project management, and technical expertise.

Scale AI

Scale is at the forefront of the AI revolution, developing data engines and technologies that power the world's leading LLMs and generative models. This role is on the Platform Engineering team, responsible for the foundational data infrastructure that supports these cutting-edge AI products. You will lead the design and development of core data storage, streaming, caching, and indexing platforms, gaining exposure to the rapidly evolving AI landscape across various industries. The work involves driving architecture, implementation, and reliability of these critical systems, collaborating with stakeholders, and mentoring junior engineers.

$252k - $315k

Scale AI

Scale is seeking a Solutions Engineer to join our growing team and ensure that the world's most innovative companies become passionate, lifelong Scale customers. In this role, you will partner closely with Account Executives, Product, and Machine Learning Engineers to lead prospective customers through the pre-sales process, delivering customized demos and pilots to secure the "technical win." You will be responsible for scoping customer technical requirements, developing actionable Statements of Work (SOWs), and collaborating with the delivery team on initial implementations. Solutions Engineers are expected to be relentlessly curious about customer needs, leverage expert knowledge of Scale products and Generative AI, and build strong relationships while managing projects and providing technical expertise.

$180k - $225k

Scale AI

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

$180k - $225k

Scale AI

Scale GP is seeking a Senior or Staff Infrastructure Engineer to lead the engineering of the 'paved road' for knowledge retrieval and inference engines, defining deployment standards for Agentic workflows at scale. This role bridges complex AI orchestration with world-class infrastructure, ensuring platform reliability for enterprise agents. The ideal candidate is passionate about deep technical work, mentoring, and setting long-term technical strategy while maintaining a hands-on delivery focus. You will architect and implement solutions across multiple cloud providers (GCP, Azure, AWS) for customers in regulated industries.

$252k - $315k