AWS Jobs

Poolside is building a company to create Artificial General Intelligence, aiming to be a leader in applied research, engineering, infrastructure, and large-scale deployment. We are a remote-first team across Europe and North America, coming together monthly for in-person collaboration. Our R&D and production teams value strong software development knowledge and believe good engineering drives faster iteration. This role focuses on evaluation, a critical pillar for building frontier models and products. You will design and implement a powerful, self-serve evaluation framework to enable easy building, running, and insight extraction from evaluations at scale, supporting our research and development efforts.

Mercor is seeking a Security Engineer to own cloud and infrastructure security at a company where tenant isolation is a critical enterprise requirement. You will architect multi-account AWS isolation, harden Kubernetes clusters, deploy cloud security posture management, and build the infrastructure that lets Mercor serve enterprise clients who demand the highest security bar. This role involves using AI heavily in security work, including building alongside AI code-gen tools, using LLMs to accelerate infrastructure review and policy authoring, and automating repetitive tasks. If you prefer writing Terraform modules over filling out spreadsheets, you will fit in here.

Cognition is seeking an AI Support Engineer to resolve complex technical issues for customers using their AI software engineer products, Devin and Windsurf. This role involves investigating ambiguous, environment-specific problems across codebases, infrastructure, developer tooling, CI/CD systems, APIs, containers, and cloud platforms. You will be responsible for reproducing bugs, analyzing logs, tracing failures, forming root-cause hypotheses, and driving issues to resolution. The ideal candidate has strong debugging instincts, broad systems knowledge, and the ability to operate with urgency in a fast-paced environment, communicating clearly with customers and partnering with engineering when necessary.

LangChain is seeking a Deployed Engineer to join their team, focusing on making intelligent agents ubiquitous. This role involves working on challenging applied AI problems, building production systems that real teams depend on, and directly shaping how AI agents are built and used in the real world. The feedback loop is fast, the impact is visible, and the work contributes to the evolution of AI agent technology.

$150k - $250k

LangChain is seeking a Deployed Engineer to join their team and work on challenging applied AI problems. This role focuses on building and deploying production AI agents that real teams depend on, offering a fast feedback loop and visible impact. You will be instrumental in shaping how AI agents are built and adopted in the real world, moving beyond demos and research to create reliable systems.

$150k - $250k

We are seeking an AI Infrastructure Engineer to join our expanding team. In this role, you will collaborate closely with our Inference and Research teams to construct, deploy, and enhance our extensive AI training and inference clusters. Your work will involve managing Kubernetes and Slurm environments, optimizing distributed training for large language models, and developing robust orchestration systems. This position offers the opportunity to significantly impact the performance and scalability of our AI infrastructure.

We are seeking an AI Infrastructure Engineer to join our expanding team. In this role, you will collaborate closely with our Inference and Research teams to construct, deploy, and enhance our large-scale AI training and inference clusters. Our work involves Kubernetes, Slurm, Python, C++, PyTorch, and primarily operates on AWS.

Mistral AI

Mistral AI is dedicated to simplifying tasks, saving time, and enhancing learning and creativity through AI. We democratize AI with high-performance, open-source models and a comprehensive AI platform for enterprise needs. We are seeking passionate and talented software engineers to join our team and play a key role in developing the core systems that drive our Cloud solutions. Your work will involve building robust, high-performance backend systems and APIs to support our rapidly expanding enterprise user base.

Replit

Replit is seeking a Premium Support Engineer to be the primary point of contact for their highest-value customers, providing expert and timely technical support. This role involves handling complex product issues, guiding customers through critical incidents, and ensuring a high standard of quality and speed in all interactions. The engineer will play a key part in evolving support strategies, adapting to new products and customer expectations, and leveraging AI-assisted workflows. The position requires a blend of deep technical troubleshooting and clear, confident communication to keep users productive.

Applied Intuition is seeking a hands-on Technical Lead to take ownership of identity and access management (IAM) across the organization. This senior individual contributor role involves defining the long-term IAM strategy, assessing and maturing the Identity Provider (IDP) architecture, and driving all identity systems towards Zero Trust principles. You will be responsible for automating identity lifecycle processes, implementing Role-Based Access Control (RBAC), defining least-privilege policies, centralizing secrets management, and designing Privileged Access Management (PAM) solutions. The role also includes implementing scalable access management for AI agents and bots, enforcing Single Sign-On (SSO), and owning the implementation and governance of authentication protocols and modern identity standards. You will collaborate with various teams to deliver access management capabilities that support business needs and satisfy audit requirements, translating complex identity requirements into actionable technical plans.

$60k - $300k

Fal

We are seeking a Security Engineer, Infrastructure to safeguard the core systems powering fal.ai's platform, including GPU compute, multi-cloud environments, networking, and data pipelines. This role involves hands-on, systems-oriented work across the full stack, from cloud and Kubernetes to identity, networking, and secrets. You will be responsible for designing and implementing scalable security controls at the intersection of security, infrastructure, and distributed systems, ensuring the integrity and safety of our high-performance AI platform.

Crusoe is seeking a Senior Systems Engineer to play a key role in executing the company's Enterprise AI Strategy. This role involves designing and building agentic AI systems to move the organization from simple information retrieval to orchestrated, multi-system automation. You will operate at the intersection of AI, enterprise systems, and integration platforms, building scalable agent workflows, enabling a citizen developer ecosystem, and establishing the technical foundations for an AI-powered operating model.

$190k - $230k

Perplexity is looking for a skilled Offensive Security Engineer to join its security team. This role involves taking an adversarial approach to protect Perplexity's infrastructure, applications, and AI systems. You will be responsible for planning and executing red team operations, penetration tests, and attack simulations across various environments, including cloud infrastructure, web and mobile applications, and the AI/ML pipeline. The goal is to identify vulnerabilities before malicious actors do and collaborate with engineering teams to ensure effective remediation.

Mistral AI

Mistral AI is a pioneering company at the forefront of AI innovation, developing cutting-edge models, products, and solutions that democratize AI. We are building products like Mistral Studio and Mistral Vibe that redefine user interaction with AI. Our mission is to integrate AI seamlessly into daily life, enhancing learning, creativity, and efficiency. We are a dynamic, collaborative, and diverse team passionate about AI's potential to transform society, with a global presence across France, the USA, the UK, Germany, and Singapore. We are seeking a Security Researcher to safeguard our innovations by anticipating, identifying, and mitigating risks, embedding an attacker's mindset into our product development.

Harvey

Harvey is transforming legal and professional services by combining frontier agentic AI, an enterprise-grade platform, and deep domain expertise. This is a rare opportunity to help build a generational company at an inflection point, with strong product-market fit and world-class 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 Site Reliability team, you will ensure the reliability, scalability, and performance of our legal AI platform, owning the systems that keep our platform fast, secure, and always on. Your work will be critical in scaling across 50+ regions and automating mission-critical operations to ensure Harvey remains resilient as we grow. If you are passionate about building robust systems and reducing complexity through automation, we encourage you to apply.

Hebbia is seeking a Forward Deployed Engineer to join their team. In this hands-on role, you will be embedded with strategic customers, building the final layer of Hebbia's AI platform to suit their specific workflows, data, and domain. You will write production code, ship it, and own it, acting as the crucial link between the platform and customer environments. This position is ideal for engineers who want to combine deep technical work with direct customer impact, seeing their code create value quickly. You will collaborate closely with the core engineering team on code reviews, architecture, and deployment, as well as with account teams to prioritize your efforts. The role requires working in person at our offices in NYC and SF.

$180k - $300k

Harvey

Harvey is transforming legal and professional services by combining frontier agentic AI, an enterprise-grade platform, and deep domain expertise. This is a rare opportunity to help build a generational company at an inflection point, with strong product-market fit and significant investor backing. 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, building, scaling, and strengthening the infrastructure that powers every user interaction with Harvey's AI platform. You will work in an environment balanced between innovation and operational excellence, ensuring the platform remains resilient and efficient as it scales.

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, and 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 vision.

Harvey

Harvey is transforming legal and professional services by combining frontier agentic AI with an enterprise-grade platform. We are a fast-scaling company with strong product-market fit, seeking individuals who want to do the best work of their careers alongside driven colleagues. Our values are Decisiveness, Simplicity, and Job's Not Finished, emphasizing quick action, scalable solutions, and continuous improvement. As a Staff Database Engineer, you will define and evolve our global PostgreSQL database infrastructure. This leadership role involves setting technical strategy for our fleet, establishing standards for migration governance, driving multi-region scaling architecture, and ensuring data layer reliability. You will partner with senior engineers on roadmap decisions while also being hands-on in diagnosing and resolving critical issues.

$191k - $325k

Hebbia is seeking an Integrations Engineer to own the full lifecycle of integrations that power its AI platform. This role involves designing, deploying, monitoring, and debugging data pipelines that bring customer data from various enterprise systems into Hebbia's platform. You will work with complex, real-world data environments, building resilient, production-grade systems that handle unreliable APIs, evolving schemas, and massive datasets. This is a hands-on, high-ownership, and deeply technical position where you will develop expertise in distributed systems, data pipelines, and large-scale debugging, gaining exposure to real production systems with immediate customer impact.

$160k - $265k