TypeScript Jobs

Perplexity is seeking a Member of Technical Staff (Software Engineer, Monetization) to own the critical billing platform and monetization systems that power their agentic AI products, including Computer. This role is foundational to Perplexity's revenue streams, responsible for metering agent actions, enforcing credit budgets, and settling costs. You will design and build abstractions that enable product teams to easily introduce new SKUs, run pricing experiments, and convert users to paying customers, ensuring all revenue paths are reliable, observable, and extensible across subscriptions, usage-based billing, and enterprise contracts.

Perplexity is seeking builders to join its highly leveraged engineering team to create innovative products that accelerate human productivity. As an engineer, you will build products and systems that define how AI empowers humans to think, decide, and act. You will ship fast and work across product, infrastructure, and frontier-level advancements in technology, focusing on craftsmanship, ownership, entrepreneurship, scholarship, and partnership. This role is for individuals who identify problems, design solutions, and ship them, acting with urgency and a founder's mindset to deliver for users.

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.

Sierra is building a platform to enable companies worldwide to create better, more human customer experiences with AI. We partner with industry leaders and are primarily an in-person company based in San Francisco, with growing international offices. Our co-founders have extensive experience from leading tech companies like Salesforce, Facebook, Google, and OpenAI. We are seeking a Software Engineer, Agent to design and deliver production-grade AI agents that are central to Sierra's growth, driving revenue and transforming how businesses operate at scale. This role involves full ownership of the Agent Development Life Cycle (ADLC), from pilot to iteration, and requires building, tuning, and evolving AI agents in production environments.

Sierra is building a platform to enable companies worldwide to create better, more human customer experiences using AI. We partner with industry leaders and are primarily an in-person company based in San Francisco, with growing international offices. Our co-founders have extensive experience from leading tech companies like Salesforce, Facebook, and Google, with one co-founder currently serving as Board Chair of OpenAI. We are guided by core values of Trust, Customer Obsession, Craftsmanship, Intensity, and Family.

Nabla is seeking a Senior Full-Stack Engineer to join a cross-functional squad and contribute end-to-end to a specific part of the product. This role involves taking a leading role in building and scaling Nabla’s AI-powered healthcare platform, working across the stack from back-end services to web, desktop, and mobile applications. You will collaborate closely with Product, Design, and Machine Learning teams to deliver high-impact features that directly serve healthcare professionals, with the goal of restoring the human connection at the heart of healthcare by streamlining clinical documentation.

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.

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.

Sierra is building a platform to enable companies to create better, more human customer experiences with AI. We are seeking a Software Engineer, Agent to design and deliver production-grade AI agents that are central to Sierra's growth and revenue. These are not prototypes but scalable systems running in production across various industries. You will own the Agent Development Life Cycle (ADLC) from pilot to deployment and iteration, establishing best practices. This role involves partnering directly with leaders at large enterprises and cutting-edge startups to understand their challenges and build AI agents that transform their operations. Your customer interactions will also shape the evolution of Sierra's core platform, influencing new tools, features, and the future of AI agent development.

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.

Within is seeking an AI Front-end Engineer who excels at the intersection of product design and front-end engineering. As an engineer first with exceptional design sensibility, you will define and implement the "look and feel" of AI-native workflows, ensuring our complex enterprise tools are as intuitive as consumer apps. We value your portfolio and track record of shipping over formal degrees.

Within is seeking an AI Front-end Engineer to join their fast-growing Series B company. This role offers a unique opportunity to learn at the intersection of product design and frontend engineering, focusing on building AI-native workflows that simplify complex enterprise tools. You will work directly with senior engineers and designers, contributing to features used by Fortune 500 customers and learning best practices for scalable front-end systems. The company emphasizes rapid growth, rewarding agency, and a deep care for customers, the team, and their mission to transform industries through AI agents.

Decagon is seeking a Senior Software Engineer to join the Agent Product Engineering team. This team deploys mission-critical AI agents to customers, impacting millions of users and driving company growth. You will build on our industry-leading AI agent platform, collaborate directly with customers, and devise long-term, scalable solutions to deliver magical support experiences. In this role, you will have complete ownership and autonomy in building and shipping best-in-class AI agents, from initial implementation through continuous iteration. You'll work directly with leaders across industries like finance, healthcare, and hospitality, solving their users' needs with reliable and intuitive AI agents. Engineers here own their work end-to-end and are trusted to make a real impact. This role is for someone who dives deep into complex system challenges and builds elegant solutions that scale to millions of users.

$200k - $400k

Decagon is seeking a Senior Software Engineer to join the Agent Product Engineering team. This role involves building and shipping best-in-class AI agents that manage complex customer interactions and drive customer retention. You will have complete ownership and autonomy, working directly with leaders across various industries to solve user needs with reliable and intuitive AI agents. The position is for someone who thrives on diving deep into complex system challenges and building elegant, scalable solutions that impact millions of users.

$200k - $400k

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

Sierra is building a platform to enable companies to create better, more human customer experiences with AI. We are seeking a Software Engineer to join our team and focus on building the core systems that power AI agents. This role involves working on the Agent SDK, including the orchestration engine, runtime, and primitives that define how agents reason, take actions, and interact with users and systems. You will also design the agentic loop, defining the necessary primitives for steerable, verifiable, conversational, and adaptive agents, and improve retrieval and grounding systems to ensure agents provide accurate, trustworthy responses. Additionally, you will build evaluation systems to measure and improve agent quality over time.

OpenAI

OpenAI's Applied AI Engineering team partners with leading organizations to design, build, and deploy AI systems that deliver measurable business outcomes. This role involves combining deep technical judgment, hands-on engineering, and customer leadership to take ambitious ideas from use-case selection and architecture through prototyping, evaluation, production launch, and scale. You will write and debug code, build evaluation systems, resolve complex integrations, and guide decisions involving model behavior, reliability, latency, cost, safety, security, governance, and operational readiness. Success is measured by production systems, sustained adoption, and meaningful customer impact. This is a rare opportunity to work on consequential real-world deployments at the frontier of AI while directly influencing how OpenAI’s products evolve.

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.

Sierra is building a platform to enable companies worldwide to create better, more human customer experiences with AI. We are seeking a Product Manager for Agent Development to partner directly with engineers and customers to build and ship AI agents capable of handling thousands of daily customer conversations. This role involves engaging with customers at all levels to understand their requirements, demonstrate Sierra's agent capabilities, and address technical challenges. You will also develop and improve virtual agents to meet customer needs and drive strategic technical initiatives for clients. A key part of this role is shaping the product roadmap by collaborating with engineering and product development teams to implement new features crucial for customer success.