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Scale AI

Scale is seeking a product leader to build Agentic AI platforms for national-level decisions, including critical national security challenges. The ideal candidate will have a strong understanding of product leadership, software engineering principles, and deep experience with ML/AI application development. This role requires a strategic leader adept at navigating government GenAI projects, ensuring alignment with agency objectives and adhering to security and compliance mandates. The product manager will oversee the entire lifecycle of the generative AI platform, from design and execution to prioritization and stakeholder engagement, with a key focus on secure operation within controlled environments and support for government workflows, particularly national defense.

$213k - $297k

Scale AI

Scale is seeking ML Research Engineers to join its Global Public Sector (GPS) division. This role focuses on bridging the gap between emerging AI capabilities and mission-critical, real-world impact by conducting applied research to solve unique sovereign AI challenges. You will move beyond off-the-shelf implementations to lead research in Agent Design, Reliability, and AI Safety, developing novel system architectures for high-stakes government applications and transforming research papers into production-ready systems.

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 Senior 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.

Harvey

Harvey is transforming how legal and professional services operate by combining frontier agentic AI, an enterprise-grade platform, and deep domain expertise. We are a fast-scaling company with strong product-market fit, seeking to define a new category in real time. This is a high-impact role for our first Product Marketing Manager focused on competitive intelligence, owning our view of the competitive landscape, shaping market positioning, and ensuring our Go-To-Market teams are equipped to win. You will blend intelligence, storytelling, and enablement within our Product Marketing team, working cross-functionally with Product, Sales, RevOps, CS, and Comms.

$171k - $256k

Replit

Replit is seeking a mid-level AppSec Vulnerability Management Engineer with a strong software development background. This role bridges the gap between security, compliance, and engineering teams by identifying application vulnerabilities, maintaining software supply chain security, and driving tracking to satisfy strict regulatory compliance frameworks. The engineer will also serve as a technical responder during security incidents, deploying real-time countermeasures to protect the software ecosystem.

Replit

Join our Site Reliability Engineering team and help ensure the reliability, scalability, and performance of Replit's infrastructure that serves millions of developers worldwide. As a Site Reliability Engineer, you will bridge the gap between development and operations, implementing automation and establishing best practices that enable our platform to scale efficiently while maintaining high availability. We are seeking SREs who are passionate about building and maintaining resilient systems at scale. Your mission will be to design and implement robust monitoring solutions, automate operational tasks, and continuously improve our infrastructure's reliability and performance.

Replit

Join our Site Reliability Engineering (SRE) team to ensure the reliability, scalability, and performance of Replit's infrastructure serving millions of developers. As a Staff Site Reliability Engineer, you will bridge development and operations, implementing automation and best practices for efficient scaling and high availability. We seek passionate individuals to proactively identify and analyze reliability issues, then design and implement solutions for significant improvements. Your mission includes designing observability, leading incident response, automating tasks, and mentoring the engineering team to embed reliability as a core value.

Cartesia is seeking a Software Engineer, Agents to develop the backend platform for Line, their voice agents product. This role involves owning backend development end-to-end, shaping the latency, reliability, and developer experience of agents built on the Cartesia platform. The position requires building and operating distributed systems, taking projects from specification to production, making critical architectural decisions, and defining the developer experience for engineers using the platform.

At WRITER, our mission to expand human capacity with superintelligence relies on a foundational truth: our platform must be available, performant, and reliable, 24/7. As an Infrastructure engineer, you'll be at the heart of making this a reality, impacting every enterprise customer who trusts us with their AI-powered workflows. This isn't just about keeping the lights on; it's about pushing the boundaries of what's possible, proactively identifying and solving complex systemic challenges, and laying the groundwork for our rapid growth and the evolving demands of enterprise generative AI. You'll build resilient systems, automate across the stack, and champion reliability best practices, directly enabling our ambitious product roadmap and ensuring our customers always have access to the powerful tools they need.

At WRITER, our mission to expand human capacity with superintelligence relies on a foundational truth: our platform must be available, performant, and reliable, 24/7. As an Infrastructure engineer, you'll be at the heart of making this a reality, impacting every enterprise customer who trusts us with their AI-powered workflows. This isn't just about keeping the lights on; it's about pushing the boundaries of what's possible, proactively identifying and solving complex systemic challenges, and laying the groundwork for our rapid growth and the evolving demands of enterprise generative AI. You'll build resilient systems, automate across the stack, and champion reliability best practices, directly enabling our ambitious product roadmap and ensuring our customers always have access to the powerful tools they need.

Scale AI

Scale's Generative AI business unit is experiencing significant growth. As a Strategic Projects Lead (SPL), you will spearhead initiatives projected to generate over $XXM in new revenue. This is a demanding role requiring a broad operational scope, an entrepreneurial mindset, a willingness to delve into details, and a drive for impactful work that fosters accelerated career progression.

Replit

Replit is seeking a Product Security Architect to be the subject matter expert for the company's secure product blueprint. This role involves defining and implementing the application security architecture for a multi-tenant SaaS platform, ensuring resilience and security by design. The architect will be a key technical contributor, leading high-impact security initiatives and providing expertise to engineering teams and executive leadership. The position focuses on defining the product security vision, leading security implementation for new features, conducting threat modeling, and enforcing application security best practices.

As a security engineer at WRITER, you will build the foundational security for the AI systems that power major enterprises. You will operate at the intersection of application security, AI infrastructure, and developer enablement, collaborating with engineering teams to integrate security into the development lifecycle. This role involves defining enterprise AI application security, from threat modeling LLM architectures to creating automated security controls. You will address unique challenges in securing AI agents, protecting training data pipelines, and designing controls for novel AI systems, aiming to enable secure innovation rather than hinder it.

WRITER is a leading enterprise AI company focused on expanding human capacity through superintelligence. We provide a platform for companies to build and deploy AI agents grounded in their data and powered by enterprise-grade LLMs. We are a fast-growing, well-funded company looking for talented individuals to join us in creating the future of work with AI. As a Security Engineer, Application Security, you will be instrumental in building the security foundations for our AI systems. You will work at the intersection of application security, AI infrastructure, and developer enablement, ensuring security is integrated into every stage of development. This role offers a unique opportunity to define how enterprise AI applications are secured, tackle novel challenges in securing AI agents and data pipelines, and contribute to a platform that is both powerful and trustworthy.

Scale AI

Scale's Generative AI business unit is experiencing significant growth. As a Strategic Projects Lead (SPL), you will spearhead initiatives projected to generate over $XXM in new revenue. This is a demanding role requiring a broad operational scope, an entrepreneurial mindset, a willingness to delve into details, and a drive for impactful work that fosters accelerated career progression.

Scale AI

Scale's Generative AI business unit is experiencing significant growth. As a Strategic Projects Lead (SPL), you will spearhead initiatives projected to generate over $XXM in new revenue. This is a demanding role requiring versatility across all operational dimensions. The ideal candidate possesses a strong entrepreneurial spirit, a willingness to delve into details, and an enthusiasm for impactful work that fosters accelerated career advancement.

$112k - $190k

Harvey

Harvey is redefining legal work by combining cutting-edge AI with intuitive product experiences. As we scale rapidly and take on increasingly complex use cases, we are expanding our product engineering team to accelerate our ability to ship fast, delight users, and build infrastructure that scales with us. As an Engineering Manager for Product Engineering, you will lead teams of fullstack engineers building the core product surfaces that lawyers and legal professionals use every day—from complex workflows and collaboration tools to elegant user interfaces powered by sophisticated backend systems. This role is equal parts product intuition and technical execution. You will be trusted to make fast, high-quality decisions, ship impactful features, and grow a team that embodies engineering excellence.

$260k - $330k

Replit

Replit is seeking a Staff Software Engineer for its Money team to lead the integration and operation of financial partnerships. This zero-to-one role involves taking partnerships from initial scoping through to reliable operation, ensuring seamless transactions for Replit's builders and their applications worldwide. You will act as the key technical liaison between Replit engineering and financial partners, including billing platforms, payment processors, and compliance vendors. This position is ideal for someone who enjoys both coding and strategic partnership discussions, understanding that early design decisions have long-term impacts on integration success.

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

Reflection ai

Reflection is a research lab dedicated to making intelligence open and accessible. This role is foundational, focusing on building model evaluation and safety functions from the ground up. The Research Program Manager will be a key leader, driving clarity, decision-making, and coherence across teams. This is a 0-to-1 opportunity to define evaluation frameworks, build operational infrastructure for model safety, and establish processes that integrate safety into the model development lifecycle.