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Gusto, Inc.: Enterprise Application AI Architect

Headquarters: Denver, CO;San Francisco, CA;New York, NY;Los Angeles, CA;Seattle, WA;Ontario, CAN - Remote;Toronto, Ontario, CAN - Remote;United States - Remote <div class="content-intro">  <hr> About Gusto At Gusto, we're on a mission to grow the small business economy. We handle the hard stuff — payroll, health insurance, 401(k)s, and HR — so owners can focus on their craft and their customers. With teams in Denver, San Francisco, and New York, we support more than 500,000 small businesses nationwide and are building a workplace that reflects the people we serve.   All full-time employees receive competitive base pay, benefits, and equity (RSUs) — because everyone who helps build Gusto should share in its success. Offer amounts are determined by role, level, and location. Learn more about our<a href="https://gusto.com/about/careers/total-rewards"> Total Rewards philosophy</a>.   AI is a fundamental part of how work gets done at Gusto. We expect all team members to actively engage with AI tools relevant to their role and grow their fluency as the technology evolves. AI experience requirements vary by role and will be assessed during the interview process.</div>About the Role: As the Enterprise Applications AI Architect, you will lead the integration of AI and automation across Gusto’s enterprise applications ecosystem, transforming how internal systems connect, communicate, and operate. Sitting within the IT and Enterprise Applications organization, you will partner closely with Product, Engineering, Finance, People Tech, and Operations to bridge business needs with AI driven solutions. You will act as the connector between business requirements and AI frameworks, designing Model Context Protocols (MCPs) and AI agents that make enterprise workflows smarter, faster, and more autonomous. In line with Gusto’s FY26 Enterprise Systems strateg

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Collaboration.Ai: Senior Software AI Engineer

<img src="https://we-work-remotely.imgix.net/logos/0171/6206/logo.gif?ixlib=rails-4.0.0&w=50&h=50&dpr=2&fit=fill&auto=compress" /> Headquarters: Minneapolis, MN URL: <a href="http://collaboration.ai">http://collaboration.ai</a> <h1>Who We Are</h1> Collaboration.Ai is a mission-focused, AI-powered software and services company based in Minnesota, with employees, partners, and customers around the world. We unite people, technology, and purpose to accelerate breakthroughs that transform industries, empower communities, and create a more sustainable future. We collaborate with organizations across the defense ecosystem, helping them navigate complex challenges and drive transformative change. <h1>Our Products</h1> NetworkOS — NetworkOS is an AI-powered platform that aligns people, purpose, ideas, and expertise in real-time, generating actionable insights to propel movements forward. CrowdVector — CrowdVector is an integrated solution marketplace and innovation management platform that rapidly uncovers new ideas and advances breakthroughs to fuel movements. To learn more about us, visit collaboration.ai. <h1>About the Role</h1> You'll build the agentic systems and data pipelines behind NetworkOS's AI capabilities: production agent workflows built on industry-leading agent SDKs and harnesses, MCP servers, and Agent Skills standards; the eval and observability layer that keeps LLM quality measurable; and the ingestion pipelines that turn messy, diverse data sources into queryable knowledge. This is an execution seat, not an ivory tower. You'll commit code every week, ship agents as product capability rather than demos, and help shape a roadmap that's heading deep into graph + agents territory — for customers in defense, public sector, and regulated enterprise. Agents in production. Pipelines that hold. Evals that keep everyone honest. <h1>What You'll Do</h1> <ul> <li>

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Twilio: Machine Learning Engineer

Headquarters: Remote - Spain <div class="content-intro">Who we are  At Twilio, we’re shaping the future of communications, all from the comfort of our homes. We deliver innovative solutions to<a class="c-link" href="https://customers.twilio.com/"> hundreds of thousands of businesses </a>and empower millions of developers worldwide to craft personalized customer experiences. Our dedication to <a class="c-link" href="https://www.twilio.com/en-us/blog/open-work">remote-first work</a>, and strong culture of connection and global inclusion means that no matter your location, you’re part of a vibrant team with diverse experiences making a global impact each day. As we continue to revolutionize how the world interacts, we’re acquiring new skills and experiences that make work feel truly rewarding. Your career at Twilio is in your hands. We use Artificial Intelligence (AI) to help make our hiring process efficient. That said, every hiring decision is made by real Twilions! .</div>See yourself at Twilio Join the team as Twilio’s next Machine Learning Engineer. About the job This position is to design and engineer AI powered features that makes every customer conversation smarter. As a Machine Learning Engineer on the Conversation Intelligence team, you'll develop and deploy solutions that extract meaning from voice and messaging data at Twilio scale. You'll work alongside experienced ML practitioners to ship real features - from model pipelines to production inference - that directly shape how businesses understand their customers. Responsibilities In this role, you’ll: <ul> <li>Design and development of machine learning solutions, ensuring accuracy, performance, security, and scalability.</li> <li>Implement and maintain end-to-end AI/ML pipelines - from data ingestion and f

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Toptal: AI/ML Engineer for an AI-Driven E-Commerce Platform

Headquarters: We are seeking an AI Engineer to develop AI-first applications and integrate custom models and infrastructure into an existing e-commerce platform. The role focuses on building agent-led product experiences, including internal automation, dynamic site customization, and customer-facing conversational commerce workflows.General information This engagement supports an e-commerce startup building a platform around conversational design and intelligent automation. The current objective is to extend the existing product with AI-native capabilities while building on top of the current backend and application stack.The work includes three core initiative areas: an internal AI employee for operational tasks, a fluid site customizer, and a customer-facing commerce agent designed to support one-prompt checkout experiences. The role will involve model integration, infrastructure setup, and product-facing implementation across both backend and UI surfaces.Tasks and Deliverables - Develop AI-first applications for an existing e-commerce platform. - Architect and implement autonomous e-commerce AI agents using open-source and proprietary foundation models. - Establish GPU infrastructure and data pipelines for model fine-tuning and deployment. - Integrate AI workflows with the existing stack, including MongoDB, Node.js, Express, React, and third-party APIs. - Build conversational UI components and backend logic for one-prompt checkouts and dynamic site customization.Required Experience - Strong expertise in AI/ML engineering and LLM integration. - Hands-on experience fine-tuning open-source models such as Llama or Mistral. - Experience building autonomous agents and conversational AI workflows. - Solid background in GPU infrastructure setup and optimization for training or inference. - Full-stack proficiency with MongoDB,

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Collaboration.Ai: Senior AI Engineer - Agentic Systems & Data Pipelines

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Toptal: Senior Software Engineer for AI-Powered Banking Platform

Headquarters: We are seeking a Senior Software Engineer to build and scale production-grade AI-powered financial products. This is a hands-on engineering role focused on backend platform development, AI integration, and distributed systems. The ideal candidate has strong experience with TypeScript, Python, cloud-native architectures, and applying LLMs in real-world production environments.General InformationOur client is a fast-growing, Series A-backed AI company delivering agentic AI solutions to banks and credit unions. Their platform is already serving over 100 financial institutions and more than 10 million end users.The Senior Software Engineer will work closely with the VP of Engineering, CTO, and CEO to design, build, and operate scalable backend services and AI-powered applications. This role combines platform engineering with practical AI implementation, requiring an engineer who enjoys building production systems rather than conducting AI research.Tasks and Deliverables<ul><li>Design, develop, and maintain scalable backend services powering AI-driven financial products.</li><li>Own technical decisions across system architecture, APIs, data models, performance, security, and reliability.</li><li>Build backend applications using TypeScript and Python, while contributing to frontend functionality with JavaScript when needed.</li><li>Integrate LLMs and agentic AI capabilities into production software.</li><li>Design and implement distributed, cloud-native systems with strong observability and operational excellence.</li><li>Define engineering best practices around code quality, testing, deployment, and incident response.</li><li>Collaborate closely with product, design, data, and engineering leadership to deliver customer-facing features.</li><li>Utilize modern AI development tools to improve engineering productivity and software quality.</li></ul>Required Experience<ul><li>5+ years of p

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Toptal: Python Backend Development Talent with RAG and Agentic AI Experience

Headquarters: Summary:We are seeking an experienced Python Backend Developer to design, build, and deploy scalable AI-powered applications using Retrieval-Augmented Generation, large language models, and agentic AI frameworks. The role will focus on delivering a production-grade RAG system and AI chatbot that can securely integrate with enterprise data, APIs, databases, and cloud services.General information:The organization is developing an AI-powered platform and requires an experienced individual contributor to build its RAG architecture and conversational AI capabilities. The developer will work closely with a distributed team and should be available for several hours of overlap with US working hours.The project involves designing AI systems that go beyond basic prompt engineering, including multi-step workflows, autonomous agents, vector search, knowledge retrieval, memory management, and tool integration. The solution must be scalable, secure, observable, and suitable for production use.The technology environment includes Python, FastAPI, large language models, LangGraph, LangChain, vector databases, Azure AI services, AWS, Docker, Kubernetes, and microservice-based architectures.Task and deliverables:<ul><li>Design the end-to-end architecture for a scalable RAG system and AI chatbot.</li><li>Develop Python backend services, REST APIs, and microservices using FastAPI or similar frameworks.</li><li>Build document ingestion, chunking, embedding, indexing, retrieval, and reranking pipelines.</li><li>Implement vector search solutions using Azure AI Search or comparable vector databases.</li><li>Design autonomous AI agents capable of planning, reasoning, tool usage, and decision-making.</li><li>Develop multi-step AI workflows using LangGraph, LangChain, CrewAI, AutoGen, or similar orchestration frameworks.</li><li>Integrate commercial and open-source LLMs, including Azure OpenAI, OpenA

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Lemon.io: Senior AI Engineer

<img src="https://we-work-remotely.imgix.net/logos/0171/6136/logo.gif?ixlib=rails-4.0.0&w=50&h=50&dpr=2&fit=fill&auto=compress" /> Headquarters: New York, NY URL: <a href="https://lemon.io">https://lemon.io</a> Are you a talented Senior AI Engineer/Architect looking for a remote job that lets you show your skills and get decent compensation? Look no further than <a href="https://lemon.io/for-developers/?utm_source=weworkremotely&utm_medium=job_ad&utm_campaign=supply_en_ai_engineer_agent/architect_jul_2026_job_ad">Lemon.io</a> — the marketplace that connects you with hand-picked startups in the US and Europe. What we offer: <ul> <li>The rate depends on your skills and experience. We've already paid out over $11M to our engineers.</li> <li>No more hunting for clients or negotiating rates — let us handle the business side of things so you can focus on what you do best.</li> <li>We'll manually find the best project for you according to your skills and preferences.</li> <li>Choose a schedule that works best for you. It’s possible to communicate async or minimally overlap within team working hours.</li> <li>We respect your seniority so you can expect no micromanagement or screen trackers.</li> <li>Communicate directly with the clients. Most of them have technical backgrounds. Sounds good, yeah?</li> <li>We will support you from the time you submit the application throughout all cooperation stages.</li> <li>Most of our projects involve working in a fast-paced startup environment. We hope you like it as much as we do.</li> <li>Through our community, we will connect you with the best developers from more than 75 countries.</li> </ul> We have several AI-related roles; here are some of them. Requirements - AI Engineer: <ul> <li>3+ years of commercial experience applying AI to practical technology solutions</li> <li>A solid understanding of Python is a

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Gusto, Inc.: Enterprise Application AI Architect

Collaboration.Ai: Senior Software AI Engineer

Twilio: Machine Learning Engineer

Toptal: AI/ML Engineer for an AI-Driven E-Commerce Platform

Collaboration.Ai: Senior AI Engineer - Agentic Systems & Data Pipelines

Toptal: Senior Software Engineer for AI-Powered Banking Platform

Toptal: Python Backend Development Talent with RAG and Agentic AI Experience

Lemon.io: Senior AI Engineer

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