TypeScript Jobs

Nabla is seeking a Full-Stack Engineer to join one of their cross-functional squads, contributing end-to-end to specific product areas. This role involves building and improving product features across web and desktop platforms, contributing to back-end APIs and services, and collaborating closely with Product, ML, and Design teams to bring projects from conception to production. The engineering team is lean, fast-moving, and deeply technical, focused on delivering AI into clinical settings reliably and at scale. Nabla is backed by a $70M Series C funding round and is at the forefront of developing AI assistants for healthcare, aiming to restore the human connection in medicine.

Braintrust is seeking Platform Support Engineers at both mid and senior levels to join a small, high-ownership team. This role focuses on providing technical front-line support for infrastructure, performance, and reliability for customers who run Braintrust within their own AWS, Azure, and GCP accounts. You will work closely with Cloud Infrastructure and Engineering teams, addressing complex infrastructure challenges for critical customer deployments.

Braintrust is seeking Platform Support Engineers at both mid and senior levels to join a small, high-ownership team. This role focuses on providing technical support for customers who deploy Braintrust within their own AWS, Azure, and GCP accounts, often behind their own VPCs and compliance requirements. You will be the technical front line for infrastructure, performance, and reliability issues, working closely with Cloud Infrastructure and Engineering teams. If you enjoy solving complex infrastructure challenges with a direct customer impact, this is the role for you.

This role is designed for new graduates who are eager to work on real-world AI systems in production from day one. As a Member of Technical Staff at Fireworks, you will write and deploy code that operates on one of the world's most active inference platforms, serving hundreds of models to developers and enterprises at a massive scale. You will be matched to a team based on your strengths and interests, with potential work spanning inference and performance, model training and fine-tuning, distributed systems and cloud infrastructure, developer platform and APIs, or product and full-stack application engineering. You will be supported by a senior engineer mentor and a structured ramp-up program, starting with well-scoped problems and progressing to owning features and systems independently. The company emphasizes a fast-paced environment with a high bar and a commitment to employee development.

As a Principal Solutions Architect for Developer Platform, you will own the regional technical strategy for Cloudflare’s most important Developer Platform customer and partner engagements. You will collaborate with engineering leaders, architects, developers, security teams, and executives to define architectures, validate technical approaches, and facilitate the migration of production workloads to Cloudflare. This role involves managing a portfolio of strategic engagements rather than focusing on a single account. A key aspect of this position is translating field experience into broader impact by creating reusable architectures and technical guidance, developing other architects, and providing product teams with clear insights into regional customer needs. This is a senior individual-contributor role that combines hands-on architecture, executive influence, regional technical leadership, and mentorship.

WRITER is seeking an exceptional software engineer to join its rapidly evolving team. In this pivotal role, you will be at the forefront of expanding human capacity by building the next generation of AI-powered solutions that transform how leading enterprises operate. You will dive deep into developing a state-of-the-art platform that leverages cutting-edge generative AI technologies, from large language models to sophisticated agentic workflows, delivering seamless, scalable, and secure applications that redefine enterprise productivity. This is an unparalleled opportunity to make a tangible impact, shaping the future of AI and contributing to a product that’s changing how the world works.

The Enterprise Agents Engineering Team at SpaceXAI focuses on solving complex problems in applied AI, specifically integrating with diverse systems, orchestrating intricate workflows, and leveraging AI to revolutionize business operations. This role involves building full-stack solutions with end-to-end product ownership, from initial concept to deployment. You will collaborate closely with the team to integrate advanced AI technologies into dependable, user-focused solutions, employing an iterative development process. Working hand-in-hand with customers, you will gather feedback, refine features, and evolve products to meet real-world demands.

OpenAI

We are seeking a driven solutions leader with a product mindset to partner with public sector customers and ensure they achieve tangible value with GenAI. You will collaborate with government agencies, policymakers, and public institutions to establish a GenAI strategy and identify high-value applications. You'll then work with their technical teams, subject matter experts, systems integrators, and implementation partners to move from prototype through production, designing architectures using the OpenAI API and other services to maximize customer value. This role involves close collaboration with Sales, Solutions Engineering, Global Affairs, Applied Research, and Product teams.

Replit

Replit is seeking a founding engineer to establish the technical direction for Growth Enablement. This role involves rethinking growth systems for an AI-driven future, where agents can analyze performance, identify issues, take action, and learn from outcomes. You will build agentic systems and foundational elements for attribution, audience management, customer lifecycle engagement, referrals, and promotions, spanning web, mobile, billing, and data. Collaborating directly with marketing, sales, and partnerships teams, you will identify high-impact problems and deliver initial solutions that will evolve into platforms to accelerate team velocity and provide clearer insights into durable growth drivers.

OpenAI

As an Applied AI Engineer, you will partner directly with leading organizations to design, build, and deploy AI systems that deliver measurable business outcomes. You will combine 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.

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. 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.

Sierra is building a platform to enable companies to create better, more human customer experiences with AI. As a Software Engineer, Agent Intern, you will work directly on production AI agents for Sierra's customers. This role offers hands-on experience in designing and developing AI agents, shipping features, and learning from real-world use cases at scale. It's an opportunity to contribute to a significant technological wave and learn from industry leaders.

OpenAI

As an Applied AI Engineer focused on Codex, you will partner directly with leading engineering organizations to design, build, and deploy AI systems that transform how software is developed. You will combine deep technical judgment, hands-on engineering, and customer leadership to take ambitious ideas from workflow and use-case selection through prototyping, evaluation, production rollout, and scaled adoption. You will work alongside engineering teams to build advanced AI coding workflows, integrations, automations, and evaluation systems—often using Codex itself as part of your development process. You will help customers make technical decisions involving model behavior, agentic workflows, developer environments, security, reliability, evaluation, and operational readiness, while ensuring deployments translate into measurable improvements in engineering productivity and software delivery. You will work closely with OpenAI Product, Research, Engineering, Security, Sales, and the broader Codex organization, translating real-world deployment experience into high-signal product and model feedback. Success is measured by production systems, sustained developer adoption, and meaningful improvements to how engineering organizations build software—not simply successful demonstrations or enablement activity.

Rogo is transforming global finance with AI, empowering professionals at top investment firms with unparalleled speed, accuracy, and insight. We are a rapidly growing company with proven product-market fit, backed by world-class investors, and are scaling quickly to define a new category of enterprise AI. Our team is sharp, motivated, and deeply committed to our mission, taking ownership of complex problems and focusing relentlessly on our users. If you thrive in a fast-paced environment, demand excellence, and want to help build the future of finance, we invite you to join us.

Mercor is a leading AI data company building the layer between human expertise and frontier models. We are seeking a Security Engineer, Application Security to own application security at a company where the app layer is the highest-priority security surface. This is not a scan-and-triage role. You will embed in the development lifecycle, review code for exploitable flaws, build security tooling into CI/CD, and drive vulnerability remediation across a platform serving 300K+ experts and enterprise clients processing sensitive AI training data. You should be comfortable building alongside AI code-gen tools, using LLMs to accelerate code review and threat modeling, and automating away repetitive work.

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.

WRITER is seeking a Software Quality Engineer to ensure the reliability, performance, and trustworthiness of its AI-powered work orchestration platform. This role involves defining and implementing quality strategies for enterprise-grade LLMs and AI agents, directly impacting how global companies leverage AI. You will be at the forefront of addressing the unique challenges of AI quality assurance in a rapidly evolving field. This is a hybrid role based out of our London, San Francisco, Seattle, and New York City hubs, reporting directly to the director of engineering.

LangChain is seeking a Lead Applied AI Engineer to join our NYC-based team. This is a hands-on role focused on leading technical projects from conception to deployment and mentoring other engineers. You will be instrumental in driving the development of complex agentic projects, acting as a technical leader and problem-solver for the team. This role is ideal for someone who wants to work at the frontier of agent building, iterating rapidly and contributing to the evolution of our platform.

$160k - $200k

LangChain is seeking a Deployed Architect to join our Professional Services team. In this role, you will collaborate directly with enterprise customers to design, deploy, and optimize production-grade AI infrastructure and agent systems. You will be responsible for architecting scalable, secure infrastructure deployments and building reliable, well-evaluated agent applications that address significant business challenges. This position blends software development, infrastructure/platform engineering, and customer-facing expertise, requiring deep technical knowledge in both infrastructure and agent engineering.

$170k - $215k