TypeScript Jobs

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 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 Generative AI Platform (Scale GP) is seeking a strong engineer to help build and scale an enterprise-grade Generative AI platform. This role involves owning significant new product areas, working across backend, frontend, and integrating with LLMs and ML models. You will tackle complex engineering challenges related to scalability and reliability in a fast-paced environment, delivering high-quality experiments to engage customers throughout the entire product lifecycle.

$252k - $315k

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.

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.

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.

Replit

The Anti-Abuse team at Replit is responsible for defending the platform from exploitation by detecting and preventing various forms of abuse, including phishing, cryptomining, LLM token farming, and malicious use of the platform. 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 role is the AI-native nature of Replit's platform, presenting opportunities to build guardrails for AI-generated code, detect prompt injection attacks at scale, and leverage LLMs for defense. The position offers hands-on experience applying AI to security problems in a production environment with real attackers, with end-to-end ownership from identifying abuse patterns to shipping scalable solutions.

Replit

Replit is seeking a Software Engineer to join their Developer Experience team. This role focuses on accelerating engineering velocity and reducing friction within Replit's development workflows. You will be responsible for stewarding codebases, tooling, and developer workflows, directly impacting every engineer at Replit. The position combines technical depth in a complex codebase with a product mindset to understand how infrastructure decisions affect developer productivity and customer value. You will also collaborate with the AI team to enhance the internal AI platform, which currently generates over 60% of merged PRs, and help shape its future strategy.

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 Senior Product Engineer for its Product Foundry team. This team is responsible for driving industry disruption and achieving 10x scale by launching high-risk, full-stack initiatives that create new product categories. The Product Foundry acts as Replit's internal innovation engine, aiming to transform Replit into the foundational operating system for the next generation of software, where AI Agents are the primary actors. The role involves building for creators and enterprises, equipping them with tools to build anything, anywhere, and operates within a high-agency founding team model with autonomous squads focused on rapid iteration and market validation.

Replit

Replit is seeking a Mobile Software Engineer to shape the end-to-end user experience for building and publishing native mobile applications. You will build innovative new features and interactions, enabling anyone with a phone to create software for their phones and assist with our mobile UI/UX. The role involves working with a modern tech stack including Typescript, React, React Native, Expo, Apollo/GraphQL, Swift, and Kotlin.

Replit

Join our Enterprise Platform team and build the infrastructure foundations that enable the world's largest organizations to run Replit within their security and compliance boundaries. As a Software Engineer on this team, you'll design and implement the deployment flexibility, networking capabilities, authorization systems, and data controls that enterprises require, from single-tenant architectures and private connectivity to custom policy enforcement and customer-managed encryption. You'll work at the intersection of cloud infrastructure and enterprise requirements, partnering with Platform Engineering, Security, and Sales to ship capabilities that unlock adoption at demanding organizations.

Mistral AI

Mistral AI is seeking an Applied AI Engineer to facilitate the adoption of its products among customers and collaborate with them to address complex technical challenges. This role is an integral part of our Applied AI Engineering team, dedicated to driving the successful deployment of Mistral AI products. You will work hand-in-hand with customers from the pre-sale stage to post-implementation, ensuring our solutions meet and exceed client expectations.

Replit

Replit is seeking a Product Engineer to join their Product Platform team. This role focuses on building and owning the shared foundations that power the entire Replit platform, impacting backend infrastructure, connectors, product primitives, and the frontend. You will contribute to making product development safer, faster, and more consistent by designing reusable systems, improving performance and reliability, and hardening systems against failure. The work offers high leverage and exposure across the engineering organization, with opportunities to influence technical direction and improve the developer experience, including for AI coding agents.

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, 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 Full Stack Software Engineer, you will play a pivotal role in shaping the foundation of our product platform while directly building user-facing features for leading law firms and enterprise customers. This role is ideal for engineers excited by the opportunity to move between deep platform thinking and hands-on product iteration.

Harvey

As a Software Engineer on the Product Engineering team at Harvey, you will own and lead engineering projects across our various product lines. You will work closely with our AI, Legal, and GTM teams to build secure systems that deliver value to our customers. We are looking for individuals who have worked across the stack on incredible products across consumer, enterprise, and various industries and who are excited about building the future of application layer and genAI products.

$200k - $260k

Replit

Join our Enterprise Platform team and build the infrastructure foundations that enable the world's largest organizations to run Replit within their security and compliance boundaries. As a Software Engineer on this team, you'll design and implement the deployment flexibility, networking capabilities, authorization systems, and data controls that enterprises require, from single-tenant architectures and private connectivity to custom policy enforcement and customer-managed encryption. You'll work at the intersection of cloud infrastructure and enterprise requirements, partnering with Platform Engineering, Security, and Sales to ship capabilities that unlock adoption at demanding organizations.

Cohere

Cohere is seeking senior software engineers with Applied AI experience to join their team as Forward Deployed Engineers for the Agentic Platform in Korea. This role involves bridging Cohere's North AI workspace platform with client engineering teams, focusing on solving complex problems and securely integrating AI into critical sectors. You will be responsible for the design, build, and deployment of agentic workflows powered by Large Language Models (LLMs), from prototypes to production-grade AI agents, delivering tangible business value. This position requires working closely with customers on real-world business problems, often building novel agent workflows that integrate LLMs with tools, APIs, and data sources, ensuring reliability, observability, safety, and auditability from the outset.

$20k - $40k

Replit

Replit is seeking an engineer to join the Replit Cloud organization, focusing on the development of Replit Agent. This team builds Replit's first-party cloud infrastructure, managing essential services like databases, application storage, hosting, and development environments. Your work will be crucial in powering one of Replit's key product differentiators by ensuring seamless integration of these services, enabling users to build, scale, and succeed entirely on the Replit platform.