JavaScript Jobs

Mistral AI

Mistral AI is seeking passionate and skilled software engineers to join our Warsaw-based Context Engine team. You will be instrumental in building and enhancing Mistral's agent harness, which is crucial for delivering production-grade knowledge processing and directly influences how users interact with our AI platform. The role involves developing reliable, high-performance backend systems and APIs that serve millions of users and developers, ultimately making the user and developer experience more engaging, efficient, and intuitive. We are looking for engineers at mid to senior staff levels who are eager to learn, collaborate, and ship impactful products.

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

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.

Mistral AI

Mistral is seeking highly motivated Data Quality Specialists to join our Human Data Annotation team. This hybrid role involves reviewing and auditing code annotations against rubrics to ensure high-quality data for AI model training and evaluation. You will also be responsible for building, maintaining, and troubleshooting the internal tooling that annotators use daily. This position offers the opportunity to collaborate closely with annotators, technical program managers, and engineering stakeholders, contributing to the refinement of guidelines and processes that shape data production.

OpenAI

OpenAI's Forward Deployed Engineering team partners with customers to turn research breakthroughs into production systems, operating at the intersection of customer delivery and core platform development. Forward Deployed Engineers (FDEs) lead complex end-to-end deployments of frontier models in production alongside our most strategic customers. You will own discovery, technical scoping, system design, build, and production rollout, partnering directly with customer engineering and domain teams. Success will be measured through production adoption, measurable workflow impact, and eval-driven feedback that influences product and model roadmaps. You'll collaborate closely with Product, Research, Partnerships, GRC, Security, and GTM teams.

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

$150k - $250k

LangChain is seeking a Deployed Engineer to join their team and work on challenging applied AI problems. This role focuses on building and deploying production AI agents that real teams depend on, offering a fast feedback loop and visible impact. You will be instrumental in shaping how AI agents are built and adopted in the real world, moving beyond demos and research to create reliable systems.

$150k - $250k

Replit

Replit is seeking a Premium Support Engineer to be the primary point of contact for their highest-value customers, providing expert and timely technical support. This role involves handling complex product issues, guiding customers through critical incidents, and ensuring a high standard of quality and speed in all interactions. The engineer will play a key part in evolving support strategies, adapting to new products and customer expectations, and leveraging AI-assisted workflows. The position requires a blend of deep technical troubleshooting and clear, confident communication to keep users productive.

Google DeepMind

The Gemini App Design team is building the Gemini Universal Assistant, a conversational AI designed to help users worldwide collaborate with generative AI for imagination, curiosity, and productivity. This role is instrumental in developing innovative ways for people to accomplish tasks and enrich their lives, focusing on creating world-leading generative AI experiences. At Google DeepMind, the mission is to unlock state-of-the-art AI capabilities across Alphabet, aiming for positive impact and magical product experiences for billions of users. The Integrated Assistance team specifically focuses on making Gemini a personalized universal assistant integrated across devices and apps, unlocking generative AI experiences through deep OS and app integrations. This team guides users to understand the value of generative AI, including capabilities beyond the full-screen app, and partners with design, research, and modeling teams globally.

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.

Google DeepMind

At Google DeepMind, we aim to unlock state-of-the-art artificial intelligence capabilities across Alphabet, creating positive impact and magical product experiences for billions of users. We are seeking a highly experienced, self-starting, and innovative Staff AI Product Designer focusing on our Growth and Discovery initiatives. As a key member of our team, you will work hand-in-hand with engineers, research scientists, and product managers to design and build intuitive solutions to help people around the world use Google’s best AI models to enrich their lives and realize their potential. You will play a crucial role in shaping the future of how people interact with AI, involved in all aspects of the design process, from conceptualization and ideation to prototyping and implementation in a fast-moving and highly collaborative environment.

Mistral AI

Mistral AI is seeking an AI Deployment Strategist to drive the adoption and deployment of their AI solutions. This role involves working closely with customers from strategic vision to production implementation, sitting at the intersection of business strategy, AI innovation, and hands-on deployment. You will partner with senior executives to design AI roadmaps, collaborate with the Applied AI team to deliver solutions in production, and ensure seamless transitions from presales to postsales, directly contributing to customer success by bridging the gap between strategy and execution. This position is ideal for individuals who thrive in a fast-paced environment, enjoy solving complex business challenges, and are passionate about translating AI potential into real-world impact.

Mistral AI

As an Associate AI Deployment Strategist, you will support the adoption and deployment of Mistral’s AI solutions, working closely with customers and internal teams to bridge the gap between strategic vision and practical implementation. This role is ideal for early-career professionals eager to learn, grow, and contribute to transformative AI projects in a collaborative environment. You will assist in designing AI roadmaps, collaborating with the Solution team to deliver solutions, and ensuring smooth transitions from presales to postsales. Your work will directly contribute to customer success, helping turn AI potential into real-world impact.

OpenAI

As an AI Architect, you will be the senior technical owner for a named portfolio of customers, acting as the primary technical counterpart to their leadership teams. You will shape each customer's AI strategy and guide 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, translating business priorities into a focused use-case portfolio and an actionable adoption roadmap. 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 requires strong industry fluency, sound architectural judgment, and the ability to move confidently between executive strategy and hands-on technical conversations.

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

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.

Replit

Replit is seeking an experienced Growth Infrastructure Engineer to build and maintain the technical foundation for scalable growth experiments, high-performance data pipelines, and automated systems. This role is at the intersection of growth, product, and infrastructure, requiring deep technical engineering skills combined with an understanding of experimentation and data-driven optimization. You will collaborate with product, data science, and backend teams to ensure growth initiatives run smoothly and scale efficiently across systems. This is a unique opportunity to be an early member of a new Growth team, with significant ownership and influence over technical direction and product outcomes, working on a product that has experienced massive user growth.

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

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.

OpenAI

As an AI Architect, you will be the senior technical owner for a named portfolio of customers, acting as the primary technical counterpart to their leadership teams. You will shape each customer's AI strategy, 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 various OpenAI solutions, translating business priorities into a focused use-case portfolio and an actionable adoption roadmap. You will remain accountable for the technical outcome, coordinating specialists for deeper expertise and execution where needed, requiring strong industry fluency, sound architectural judgment, and the ability to navigate executive strategy and hands-on technical conversations.