JavaScript Jobs

Synthesia, a leader in AI video for business, is seeking an Engineering Manager to lead its growing Application Security (AppSec) team. This role is crucial for securing the company's engineering and research organization as it scales, with a focus on building AI-native security tooling and embedding security throughout the development lifecycle. The ideal candidate will be a technically adept leader who can earn the trust of senior engineers, engage deeply in areas like threat modeling and agentic security tooling, and own the AppSec strategy. This position requires a hands-on approach to enable the team's success and foster a secure development environment within a rapidly growing AI-focused company.

Scale AI

Scale GP (Scale Generative AI Platform) is an enterprise-grade Generative AI platform that provides APIs for knowledge retrieval, inference, evaluation, and more. We are looking for a strong engineer to join our team and help us build and scale our product in a fast-paced environment. The ideal candidate will have a strong understanding of software engineering principles and practices, as well as experience with large-scale distributed systems. You will be responsible for owning large new areas within our product, working across backend, frontend, and interacting with LLMs and ML models. You will solve hard engineering problems in scalability and reliability.

Scale AI

This internship focuses on building and deploying AI-powered tools, automating workflows, and implementing agentic systems for use by Scale AI teams. You will be embedded within the Data & Technology organization, collaborating directly with engineers, data scientists, and operations leads on live automation initiatives. The role is ideal for individuals with a strong understanding of current AI capabilities, a preference for hands-on building over theoretical exploration, and proficiency in modern LLM tooling.

$74k - $112k

Fireworks is seeking a Full Stack Software Engineer to architect, build, and scale its developer-focused web application and shape its end-to-end technical architecture. This role combines hands-on engineering with technical leadership, offering opportunities to mentor engineers, collaborate cross-functionally, and drive innovation in a fast-paced, AI-focused environment. You will be instrumental in delivering scalable, elegant, and highly performant solutions that directly impact hundreds of thousands of developers and the company's product vision. The position involves shaping and shipping the optimal developer journey, encompassing intuitive front-end interfaces, robust APIs, and efficient backend orchestration, integrated with a wide offering of open-source generative AI models.

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 developed and deployed in the real world. The feedback loop is fast, the impact is visible, and the work contributes to the evolution of AI agent technology.

$165k - $380k

LangChain is seeking a Deployed Engineer to join their team, focusing on making intelligent agents ubiquitous. This role involves working directly with companies to build and run AI agents in production, transforming prototypes into reliable systems. You will tackle complex applied AI challenges, contributing to systems that real teams depend on, with a fast feedback loop and visible impact. Your work will directly shape how AI agents are built and adopted in the real world, bridging the gap between engineering, product, and go-to-market strategies.

$165k - $380k

LangChain is seeking a Deployed Engineer to join their team in NYC. This role focuses on building and running AI agents in production, moving beyond prototypes to create reliable systems that real teams depend on. You will work on challenging applied AI problems, with a fast feedback loop and visible impact, directly shaping the future of AI agents in the real world. The Deployed Engineering team partners closely with customer engineers throughout the entire lifecycle, from pre-sales to post-deployment, ensuring technical success and reliable operation of agents at scale using the LangChain suite.

$165k - $380k

OpenAI

As an AI Architect, you will be the senior technical owner for a named portfolio of customers and the primary technical counterpart to their leadership teams. You will act as the “CTO of your book of business”, shaping each customer's AI strategy and guiding their journey from pre-sales discovery and solution evaluation through deployment, adoption, and measurable business impact. You will own the technical account plan across ChatGPT Enterprise, the OpenAI API, Codex, and other agentic AI solutions. In partnership with the Account Director, you will translate business priorities into a focused use-case portfolio, an actionable adoption roadmap, and a clear path to durable customer value and growth. You will remain accountable for the technical outcome while bringing in the right specialists across deployment, implementation, enablement, security, product, and partners to provide deeper expertise and execute work where needed. This role calls for strong industry fluency, sound architectural judgment, and the ability to move confidently between executive strategy and hands-on technical conversations.

OpenAI

We are seeking a technically proficient, business-minded Applied AI Engineer to help push the frontier of advanced AI with our strategic startup customers. You'll work with some of the most exciting AI startups in the world, guiding them through ideation, development, delivery, and scaling to accelerate and maximize the value of what they build on our platform. You will have the opportunity to work on the most novel and creative use cases being built on our API, serving as a critical partner in collecting and delivering high-fidelity product and model feedback internally. You will collaborate closely with Sales, Solutions Engineering, Applied Research, and Product teams.

Scale AI

Our customer base is growing exponentially, and you will be on the front lines of ensuring that the world's most innovative companies become passionate, lifelong, Scale customers. Our Solutions Engineers ensure customers' first experiences with Scale's technology are flawless and lead to a successful long-term partnership. The work will vary daily, and we’re looking for technical experts excited to solve tough problems. As a solution engineer, you will be a part of helping shape our early-stage federal business by re-envisioning our commercial product offerings for our federal clients.

$186k - $233k

Scale AI

We are seeking a Principal Architect to drive the design, development, and deployment of our agentic AI products in a fast-paced, collaborative, extremely high-visibility environment. In this role, you will lead a team of 50+ engineers, providing both strategic and technical guidance. You’ll be responsible for high-impact architectural decisions, cross-company collaboration, and executive level engagements.

$298k - $373k

Scale AI

Scale Generative AI Platform (Scale GP) is an enterprise-grade platform offering APIs for knowledge retrieval, inference, and evaluation. We are seeking a skilled engineer to contribute to building and scaling our product in a dynamic environment. The role involves owning significant product areas, collaborating across backend and frontend development, and integrating with LLMs and ML models. You will tackle complex engineering challenges related to scalability and reliability, working throughout the product lifecycle from concept to production.

$216k - $270k

Scale AI

Scale GP is seeking a Senior or Staff Infrastructure Engineer to lead the engineering of the 'paved road' for knowledge retrieval and inference engines, defining deployment standards for Agentic workflows at scale. This role bridges complex AI orchestration with world-class infrastructure, ensuring platform reliability for enterprise agents. The ideal candidate is passionate about deep technical work, mentoring, and setting long-term technical strategy while maintaining a hands-on delivery focus. You will architect and implement solutions across multiple cloud providers (GCP, Azure, AWS) for customers in regulated industries.

$252k - $315k

Scale AI

Scale GP (Scale Generative AI Platform) is an enterprise-grade AI platform that provides APIs for knowledge retrieval, inference, evaluation, and more. We are looking for a strong engineer to join our team and help us build and scale our core infrastructure in a fast-paced environment. The ideal candidate will have a strong understanding of software engineering principles and practices, as well as experience with large-scale distributed systems. You will implement solutions across multiple cloud providers (GCP, Azure, AWS) for customers in diverse, highly-regulated industries like healthcare, telecom, finance, and retail.

$216k - $270k

Scale AI

Scale's Global Public Sector team is seeking Applied AI Engineers to build custom, end-to-end AI applications for public sector clients worldwide. This role involves leveraging the latest AI advancements to create impactful solutions, generate high-quality training data for national LLMs, and contribute to upskilling initiatives. You will work on developing and fine-tuning sophisticated models for real-world use cases, aiming to transform public sector operations and enhance citizen services through cutting-edge technology. Join a rapidly expanding team dedicated to shaping the future of AI in the public sector.

Inworld is seeking a Founding AI Solutions Engineer to bridge the gap between sales, product, and engineering. This role is crucial for the revenue team, working directly with senior leadership and the Go-To-Market (GTM) team to guide enterprise and developer customers from initial interest to production deployment. You will be responsible for running Proofs of Concept (POCs), building prototypes, and translating complex technical concepts into clear explanations for diverse audiences. This position offers a unique opportunity to shape Inworld's scaling across various industries and define the Solutions Engineering function as an early hire.

$170k - $250k

This role focuses on working directly with companies building and running AI agents in production, helping to transform ideas and prototypes into reliable systems. It's a hands-on, technical position that partners with customer engineers throughout the entire lifecycle, from pre-sales evaluations to post-deployment advisory. The core objective is to achieve technical success, co-design agent architectures, and assist customers in operating agents reliably at scale using the LangChain suite. This position sits at the intersection of engineering, product, and go-to-market, influencing LangChain's adoption and providing valuable field insights back into the platform.

$165k - $315k

OpenAI

As an AI Architect, you will be the senior technical owner for a named portfolio of customers and the primary technical counterpart to their leadership teams. You will act as the “CTO of your book of business”, shaping each customer's AI strategy and guiding their journey from pre-sales discovery and solution evaluation through deployment, adoption, and measurable business impact. You will own the technical account plan across ChatGPT Enterprise, the OpenAI API, Codex, and other agentic AI solutions. In partnership with the Account Director, you will translate business priorities into a focused use-case portfolio, an actionable adoption roadmap, and a clear path to durable customer value and growth. The Account Director owns commercial strategy; you own the technical strategy, customer journey, and path to production value. You will remain accountable for the technical outcome while bringing in the right specialists across deployment, implementation, enablement, security, product, and partners to provide deeper expertise and execute work where needed. This role calls for strong industry fluency, sound architectural judgment, and the ability to move confidently between executive strategy and hands-on technical conversations.

Glean is seeking a Tech Lead Manager for the Admin Console team to oversee a critical product area responsible for customer deployment, governance, and scaling of the Glean platform. This full-stack leadership role involves guiding architecture, collaborating with product and design teams, and developing a strategically important engineering team. The Admin Console serves as the central hub for enterprise activation, enabling administrators to configure authentication, data sources, permissions, governance, search settings, AI features, and monitor deployment health. As Glean transitions into an AI platform, this team's focus will expand from data source management to overseeing the broader system context, including actions, live data, governance, and AI configuration.

$250k - $300k

Glean is seeking a Tech Lead Manager for the Admin Console team to oversee a critical product area responsible for customer deployment, governance, and scaling of the Glean platform. This full-stack leadership role involves guiding architecture, collaborating with product and design teams, and developing a strategically important engineering team. The Admin Console serves as the central hub for enterprise activation, enabling administrators to configure authentication, data sources, permissions, governance, search settings, AI features, and monitor deployment health. As Glean transitions into an AI platform, this team's focus will expand from data source management to overseeing the broader system context, including actions, live data, governance, and AI configuration.

$250k - $300k