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Decagon is seeking an Agent Deployment Engineer to join their specialized technical delivery team. This role is responsible for the end-to-end execution of AI agent builds for strategic enterprise customers. You will own the hands-on implementation work, from systems design and scoping through to production deployment, ensuring agents perform reliably at scale. This is a highly technical, customer-facing position where you will translate customer requirements into build plans, interface with senior technical stakeholders, and drive the delivery of AI agents that significantly impact business outcomes. You will also collaborate closely with internal teams to create feedback loops, surface platform gaps, and influence the evolution of Decagon's agent-building platform based on real customer needs.

$175k - $230k

Fireworks is seeking a Security Engineer to play a key role in designing, implementing, and operating security controls across AI infrastructure, AI platforms, and internal systems. This role is crucial for strengthening our security posture and supporting rapid growth, ensuring the confidentiality, integrity, and availability of data, models, and infrastructure as organizations increasingly rely on large language models and cloud-native AI services. You will be instrumental in building trust by embedding security across all layers of our technology stack.

LangChain is seeking a Deployed Engineer to join their team, focusing on building and running AI agents in production. This role involves working on complex applied AI systems that real teams depend on, with a fast feedback loop and visible impact. You will collaborate with customer engineering teams to co-architect and co-build production AI agents, own the technical win in pre-sales by designing POCs and answering technical questions, and help customers deploy and operate agent-based applications. You will also advise customers on architecture and best practices, run technical demos and trainings, and contribute reusable patterns and code. This position offers the opportunity to directly shape how AI agents are built and adopted in the real world.

Inworld is a research lab building top-ranked real-time voice models used in large consumer-facing AI applications. Our work spans research and development of state-of-the-art models, optimizing real-time inference, and creating best-in-class APIs and products. We are looking for strong individuals from varied backgrounds who learn fast, thrive in ambiguity, and can demonstrate their built, broken, and understood work. We value researchers who can clarify ambiguous problems, design experiments to find answers, and treat evaluation as a critical research product. Impact is prioritized, though sharing work that advances the field is supported.

Mistral AI

Mistral AI is seeking an IFRS Specialist to play a key role in the company's transition to IFRS. This position will involve applying technical expertise, ensuring compliance with IFRS standards, and collaborating with auditors and cross-functional teams. The specialist will analyze complex transactions, maintain accounting policies, and support the implementation of scalable financial processes for global entities. This is an opportunity for an IFRS expert to tackle technical challenges and gain exposure to high-impact projects in a fast-growing environment.

Cohere

Cohere is seeking a Site Reliability Engineer to join the Model Serving team. This role is crucial for developing, deploying, and operating the AI platform that delivers Cohere's large language models via API endpoints. You will work closely with various teams to deploy optimized NLP models into production environments, ensuring low latency, high throughput, and high availability. The position also offers the opportunity to interact with customers and create customized deployments to meet their specific needs, contributing to the widespread adoption of AI.

Cohere

Cohere is seeking Members of Technical Staff to join the Model Serving team. This role focuses on developing, deploying, and operating the AI platform that delivers Cohere's large language models via API endpoints. You will work closely with various teams to deploy optimized NLP models into production environments, ensuring low latency, high throughput, and high availability. The position also offers the opportunity to interact with customers and build customized deployments to meet their specific needs.

OpenAI

We are seeking dedicated, experienced, and deeply curious individuals to join our User Operations team as AI Support Engineers. In this role, you will work directly with customers to troubleshoot and resolve complex technical issues, providing end-to-end ownership through debugging, analysis, and expert guidance. You will become a trusted expert on OpenAI's products and platform, serving as a critical escalation point and a line of defense for customers operating at massive scale. Beyond resolving technical issues, you will help define world-class support in an AGI-driven future, partnering closely with Engineering, Product, and Operations to improve systems, reduce bugs, and elevate the customer experience by leveraging automation and AI technology.

Synthesia is seeking a Principal Backend Engineer to focus on backend issues across all engineering teams, aiming to improve stability and standardize practices. This role involves owning projects that span quarters, requiring iterative delivery and validation. The engineer will evaluate their own work using data pipelines and frameworks to understand commercial impact and pivot as needed. A key aspect of the role is considering the long-term direction of engineering, anticipating future challenges, and developing capabilities to stay ahead. The engineer will work end-to-end, from the client application to the monolithic backend, and lead cross-team projects.

$12k - $18k

Synthesia is seeking a Staff Research Engineer to join their R&D Department, focusing on cutting-edge challenges in Generative AI, specifically avatar-centric interactive video diffusion models. This role offers the chance to work on applied research that directly impacts solutions used by thousands of businesses worldwide. You will be instrumental in shaping the future of AI video agents capable of human-like thinking, acting, and reacting. The team operates in a fast-paced environment, iterating frequently and building impactful models that ship to production.

Synthesia is seeking a Research Engineer to join their Data team, which manages the entire data lifecycle for researchers, from sourcing and processing to delivering datasets that power their AI models. This role sits at the intersection of applied research, data engineering, and ML infrastructure. You will be instrumental in building a world-class human-centric data lake by collaborating with model training teams, understanding their needs, and extracting new features and annotations to enhance datasets. The ideal candidate is passionate about improving model performance through high-quality data and will have the opportunity to enhance existing infrastructure and influence the team's long-term strategy.

Cartesia is seeking an Enterprise Engineer to help build real-time multimodal intelligence by delivering agentic voice AI solutions to customers. This role involves architecting and building enterprise-grade systems, owning the design and delivery of platform capabilities shaped by customer needs, and transforming recurring patterns from deployments into scalable platform primitives. The ideal candidate will define and improve reliability, security, and operational maturity across the company's enterprise offerings, playing a key role in scaling Cartesia's solutions in demanding enterprise environments.

LangChain is seeking a Senior Backend Engineer to join the LangSmith team, which focuses on building the core platform for observability, evaluation, and production reliability of AI systems. In this role, you will be responsible for developing the backend systems that power LangChain's observability and evals platform, enabling developers to monitor and evaluate their AI applications at scale. While the primary focus is on backend development, experience with full-stack or frontend engineering, performance tuning, and debugging production issues will be highly beneficial.

$175k - $240k

Sierra is building a platform to enable companies to create better, more human customer experiences with AI. We are a primarily in-person company based in San Francisco, with growing offices globally. Our Security Engineering team builds the foundational systems that allow Sierra to deliver powerful AI agents while protecting customer data and trust. We collaborate across product and platform teams to ensure security, privacy, and safety are core product capabilities and secure defaults.

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.

Replit

Replit is seeking a highly technical, data-driven Growth Engineer to help scale its product and expand key user metrics across acquisition, activation, retention, and monetization. This role sits at the intersection of engineering, product, and marketing, leveraging code, experimentation, and analytics to uncover opportunities and deliver measurable impact. The ideal candidate will drive experimentation and optimization by designing, implementing, and analyzing A/B and multivariate tests, and identify bottlenecks in user funnels to improve conversion rates. They will also build and scale growth-oriented product features like onboarding flows and referral systems, ensuring scalable code and infrastructure. Collaboration with data teams for tracking, dashboards, and user behavior analysis, along with leveraging SQL and analytics tools, is crucial. The role involves close partnership with product managers, designers, marketers, and data scientists to align on growth goals and translate business objectives into technical requirements.

Replit

Replit is seeking a Staff Product Engineer to join their team. This role involves collaborating with product managers, designers, and other engineers to develop features that enhance user collaboration and accelerate the journey from idea to software. You will be instrumental in shaping and experimenting with features for millions of users, leading major projects from conception to completion, and identifying and resolving complex technical challenges. The position also includes charting technical direction, mentoring junior engineers, and shipping new features and infrastructure.

Clay is seeking a strategic Deal Desk Analyst to accelerate deal velocity through intelligent automation and ensure compliance while maximizing deal value. This role is crucial for driving revenue growth by providing expert deal structuring guidance, pricing optimization, and contract negotiation support. You will leverage AI tools and automation to scale operations and serve as a trusted advisor to sales teams in a fast-paced environment.

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.

Mistral AI

Mistral AI is seeking a talented and experienced Product Manager to define and execute the strategy for Forge, a product that empowers customers to build, fine-tune, and deploy custom AI models at scale. Forge transforms cutting-edge research into enterprise-ready capabilities by supporting model fine-tuning, reinforcement learning, and post-training workflows. This role operates at the intersection of research and product, enabling customers to train specialized models for real-world business value. You will collaborate closely with applied AI scientists and research engineers to translate frontier techniques into scalable and reliable solutions, shaping a 0-1 product with significant business impact and defining the future of how organizations train and deploy AI models.