AI Engineer - Developer Ecosystem

About StackOne:StackOne serves as the cutting-edge AI Integration Gateway for SaaS products and AI Agents. Backed by GV and Workday Ventures with $24M in funding, we empower developers of SaaS platforms and AI Agents to create hundreds of scalable and enterprise-grade integrations with precision. Our platform features 25,000 pre-mapped actions across 200 connectors, an AI-driven integration development toolkit, and a robust security framework that includes real-time architecture, managed authentication, permissions, and end-to-end observability.Join us on our rapid journey to redefine the landscape of agentic integrations! We are in search of an AI engineer who thrives on creating in public, not just a content marketer with coding skills.

Join Baseten as a Software Engineer focused on enhancing our Developer Ecosystem. You will be instrumental in crafting solutions that enable developers to build, train, and deploy machine learning models seamlessly. Your role will involve collaborating with cross-functional teams to innovate and optimize our platform, ensuring it meets the needs of our users.

At Discord, we are proud to serve over 200 million users monthly, primarily connecting them through one shared passion: gaming. With over 90% of our users engaging in gaming activities, they collectively spend an astounding 1.5 billion hours each month on our platform, exploring a diverse array of unique titles. Discord is not just a communication tool; it is a pivotal player in the evolution of gaming experiences. Our mission is to facilitate enjoyable interactions before, during, and after gaming sessions.The Developer Platform team at Discord is charged with creating the Discord Social SDK, developing integrated gaming experiences, and managing the commerce platform that fuels our gaming ecosystem. This platform allows game developers to seamlessly incorporate Discord into their games, enhancing player engagement with features such as text and voice chat, as well as leveraging Discord's social graph. We are dedicated to building an infrastructure that positions Discord as the go-to platform for gamers and game developers alike.We are seeking a seasoned, technically adept, and mission-driven Director of Engineering to spearhead our commerce platform and enhance the in-Discord player experience. Reporting directly to the VP of Engineering, you will play a critical role in shaping our commerce strategy while overseeing the teams that facilitate game developers’ presence on Discord.

Join us in shaping the future of talent acquisition at Lever! As a Founding Ecosystem Engineer, you will play a pivotal role in developing innovative solutions that redefine how companies recruit and hire top talent.Lever, established a decade ago, is at the forefront of revolutionizing hiring software, trusted by industry leaders including Netflix, Yelp, Cirque du Soleil, Shopify, and Spotify. Our commitment to reimagining the talent acquisition process has positioned us as an innovation leader in the industry. We are proud to have been recognized as the top workplace in San Francisco and among the best in the United States. We attribute our success to our exceptional team, our 'Leveroos', and our people-first culture, which we continue to cultivate as we grow.

BitGo is a premier provider of digital asset infrastructure solutions, offering an array of services including custody, wallets, staking, trading, financing, and settlement from secure, regulated cold storage. Since our inception in 2013, we have dedicated ourselves to empowering clients to confidently navigate the evolving landscape of digital assets. With a robust global presence and multiple Trust companies, BitGo caters to thousands of institutions, encompassing many leading brands, exchanges, and platforms, as well as millions of retail investors around the globe. As a key player in the digital economy, BitGo manages a substantial portion of Bitcoin network transactions and stands as the largest independent custodian of digital assets and staking provider worldwide. For more information, visit www.bitgo.com.BitGo is excited to expand our Ecosystem Sales team at the Director level. This position will report directly to the Managing Director of our Ecosystem Team, presenting an excellent opportunity for business development professionals with a background in financial services and cryptocurrency. We seek candidates who are able to cover North/South America and European time zones.

Role overview The Director of Strategic Partnerships for the Content & AI Ecosystem at Cloudflare plays a key role in shaping and carrying out initiatives that connect Cloudflare’s technology with both new and established partners. This hybrid position requires close coordination with internal and external stakeholders to develop partnerships that enhance Cloudflare’s product offerings and expand its reach in the market. What you will do Lead strategic projects that support Cloudflare’s objectives in content delivery and artificial intelligence. Identify, approach, and secure new partnerships that drive business growth. Collaborate across teams to ensure partnerships deliver clear, measurable value for Cloudflare and its partners. Represent Cloudflare in discussions with key organizations in the content and AI industries. Requirements Proven experience building and managing strategic partnerships, preferably within technology, content, or AI ecosystems. Strong ability to build relationships with a range of stakeholders inside and outside the organization. Skill in connecting business strategy with technical innovation.

Canva is looking for a Principal Solution Engineer to join the Ecosystem team in San Francisco. This position centers on building and refining integrations that support Canva's design technology platform. Role overview The Principal Solution Engineer will focus on creating solutions that fit smoothly into Canva's broader ecosystem. The work aims to improve both user experience and internal processes by developing new features and optimizing existing ones. Key responsibilities Design and implement integrations that connect with Canva's platform Collaborate with product and engineering teams to deliver solutions that enhance usability and efficiency Contribute technical expertise to guide the direction of ecosystem projects Location This role is based in San Francisco.

Join Our Innovative TeamThe ChatGPT Ecosystem team plays a pivotal role in our mission to transform ChatGPT into a comprehensive super-assistant. Our ambition is to develop a platform that empowers both developers and end-users to enhance ChatGPT's capabilities, making it significantly more effective for a variety of real-world applications.We are constructing the groundwork for a vibrant ecosystem of applications, integrations, and tools that will expand the functionalities of ChatGPT. This team operates at the intersection of product engineering, platform design, and developer experience, collaborating closely with product management, research, security, and trust & safety teams to enable a global community of developers to innovate on top of ChatGPT.Your Role as a Full Stack EngineerIn the role of Full Stack Engineer on the ChatGPT Ecosystem team, you will contribute to the design and development of the platform that underpins ChatGPT Apps and developer integrations.Your responsibilities will span the entire stack—from user-friendly developer interfaces to robust backend systems—shipping features that simplify the process for developers to create, deploy, and scale applications within ChatGPT. You will collaborate closely with product managers, researchers, and other cross-functional partners to translate evolving model capabilities into effective, developer-friendly tools.We seek engineers who are passionate about building platforms, prioritize developer experience, and are eager to shape the foundational elements of a new application ecosystem.This position is based in San Francisco or New York City, operating under a hybrid work model with three days in the office weekly. Relocation assistance is available for new hires.Key ResponsibilitiesDevelop comprehensive platform features that support the ChatGPT Apps SDK and the broader developer ecosystem.Design and implement APIs, services, and interfaces enabling developers to create and integrate applications within ChatGPT.Enhance developer workflows, tooling, and documentation to ensure building on ChatGPT is intuitive and scalable.Collaborate with Product, Security, Trust & Safety, and Research teams to deliver high-quality, safe, and reliable platform capabilities.Iterate rapidly based on feedback from developers to continually enhance the platform and ecosystem experience.Contribute to defining the technical direction and architecture of the ChatGPT Ecosystem as it scales.Qualifications for SuccessA passion for building high-quality product and platform experiences.Strong experience in full-stack development with a focus on both frontend and backend technologies.Ability to collaborate effectively with cross-functional teams.A proactive approach to seeking feedback and iterating on product features.Commitment to enhancing developer experience and building intuitive tools.

About Our TeamThe Ecosystem team is pivotal in transforming ChatGPT into an exceptional super-assistant. We are constructing a robust platform that will empower millions of developers—and ultimately users—to enhance ChatGPT's functionalities through innovative tools, SDKs, and platform capabilities that foster a vibrant ecosystem of ChatGPT applications.Role OverviewWe are in search of a passionate Full-Stack Software Engineer who thrives at the intersection of front-end and back-end development, ready to deliver comprehensive features on the ChatGPT Apps platform and SDK. You will collaborate closely with Product, Security, Trust & Safety, Research, and fellow engineers to create exceptional developer experiences and broaden the capabilities of ChatGPT Apps.Key ResponsibilitiesDesign, develop, and deploy essential features within the ChatGPT Apps SDK and the larger platform.Work alongside Product Management, Security, Trust & Safety, Research, and Engineering to craft developer-centric experiences.Take ownership of features from conception through to delivery: guiding the design, technical strategy, implementation, launch, and iterative improvements.Develop scalable services and APIs while creating intuitive UI experiences that facilitate publishing, discovery, and enhanced app functionalities.Help establish a long-term technical vision—laying the groundwork for new product areas as they evolve.Contribute to the team's best practices regarding testing, architecture, and overall software development lifecycle (SDLC) quality.You Will Excel If YouAre a versatile full-stack engineer—confidently navigating between front-end and back-end to deliver holistic features (experience with React and Python is advantageous, but not mandatory).Have experience building developer tools or platforms (SDKs, integrations with tools like Slack, open-source libraries, or time spent at developer-focused companies).Possess a product-oriented mindset and relish collaborating with cross-functional teams to enhance user and developer experiences.Enjoy shipping features rapidly while maintaining high standards for quality, security, and performance.Are eager to create foundational platform capabilities that will scale alongside a fast-growing ecosystem.About OpenAIOpenAI is at the forefront of AI research and deployment, committed to ensuring that general-purpose artificial intelligence serves the greater good for humanity. We strive to push the boundaries of AI capabilities while prioritizing the safe and responsible deployment of these technologies in the real world.

About Our TeamThe Technical Success team at OpenAI is pivotal in ensuring the seamless and secure deployment of ChatGPT and OpenAI API applications for both developers and enterprises. Acting as trusted advisors, we empower our customers to maximize the value derived from our innovative models and products.Within this team, the AI Deployment Engineering group is dedicated to supporting high-impact and strategic partners. We engage collaboratively to overcome technical challenges, provide in-depth expertise, and co-create groundbreaking ecosystem experiences that showcase the enhanced benefits of partnering with OpenAI.About the RoleWe are seeking an AI Deployment Engineer to play a crucial role in shaping the future of OpenAI’s partner ecosystem within the ChatGPT domain across various applications and commerce. As the primary technical resource for our strategic partners, you will lead solution design efforts and co-develop innovative experiences that fully leverage our platform's capabilities.You will provide expert technical guidance while collaborating with our Partnerships, Product, Engineering, and Go-To-Market teams, reporting directly to the Technical Success department.This position is based in our San Francisco or New York City office, utilizing a hybrid work model of three days in-office each week, with relocation assistance available for new hires.Key Responsibilities:Deliver outstanding partner experiences by providing technical expertise, scoping use cases, and aiding in the development of applications within ChatGPT and commerce checkout processes alongside technical stakeholders and strategic partners.Collaborate with our Partnerships team to design and support ecosystem integrations, ensuring technical feasibility and impactful launches.Advise partners on best practices for utilizing the OpenAI API and ChatGPT to develop secure, scalable, and unique experiences.Act as the initial point of contact for inquiries related to design, security, compliance, and architecture, escalating complex requirements to internal experts when necessary.Develop and sustain documentation, implementation guides, and FAQs addressing common partner requirements and technical hurdles.Collect partner feedback to represent the ecosystem's voice within internal teams, influencing product roadmaps and future partner initiatives.

Join Our Innovative Team at ArcadeAt Arcade, we are revolutionizing the way physical products are created with our cutting-edge AI platform. We empower individuals to turn their creative ideas into tangible products seamlessly, utilizing natural language and generative AI. Our mission is to democratize product design, making it as effortless as sharing a post online.Backed by a remarkable $42M in funding from industry-leading investors including Reid Hoffman and Ashton Kutcher, our company is a rising star in the tech landscape. Guided by our founder Mariam Naficy and a team steeped in AI and design expertise, we are at the forefront of a new frontier that merges AI, personal expression, and on-demand manufacturing.Your Role as an Applied AI EngineerWe are on the lookout for an Applied AI Engineer to enhance our generative AI capabilities. This position combines hands-on model development with the integration of advanced AI techniques into our production systems. You will collaborate with diverse teams to conduct research, experiment with models, and implement AI-driven products.

About CartesiaAt Cartesia, our vision is to develop the next wave of artificial intelligence: a seamless, interactive intelligence that is accessible anytime and anywhere. Even the most advanced models today struggle to consistently analyze extensive streams of audio, video, and text—this includes a staggering 1 billion text tokens, 10 billion audio tokens, and 1 trillion video tokens—much less accomplishing this directly on devices.We are at the forefront of designing the model architectures that will revolutionize this capability. Our founding team, who met as PhD students at the Stanford AI Lab, pioneered State Space Models (SSMs), a groundbreaking tool for training efficient, large-scale foundational models. Our diverse team blends in-depth knowledge of model innovation with strong systems engineering and a product-driven engineering approach to create and deploy cutting-edge models and experiences.We are backed by prestigious investors including Index Ventures and Lightspeed Venture Partners, along with contributions from Factory, Conviction, A Star, General Catalyst, SV Angel, Databricks, and many others. We are privileged to have the mentorship of numerous esteemed advisors and over 90 angel investors from various fields, including leading experts in AI.About the RoleWe are seeking an AI-native Software Engineer focused on Developer Acceleration to enhance the developer experience and optimize the speed at which Cartesia engineers can ship solutions. This role involves creating innovative tooling at the cutting edge of AI programming, and developing a comprehensive playbook that empowers both engineers and non-engineers to efficiently deploy consistent and maintainable internal tools independently.Your ImpactDesign workflows that facilitate Cartesia's transition from problem identification to solution implementation with minimal human oversight.Remain informed about the latest advancements in AI-assisted development and champion its adoption within Cartesia.Develop automated end-to-end development and evaluation frameworks that empower coding agents to refine solutions and self-correct.Create a playbook for the Cartesia team to build data-connected, IAM-aware internal tools for both human-in-the-loop and automated processes.

Responsibilities:Develop Our Product. Take ownership of software features that enhance our AI platform, empowering private market investors to analyze deals swiftly and accurately. This role requires you to actively engage in coding and delivering essential platform components from the ground up.Ensure Quality and Excellence. Establish and maintain coding standards, architectural guidelines, and review procedures; mentor fellow engineers. Co-cultivate a culture centered on practical, reliable, and test-driven development that swiftly meets business requirements.Scale for Growth. Assist in monitoring and scaling the architecture of our platform and its infrastructure.Collaborate Across Functions. Engage closely with product, security, and go-to-market teams to translate our strategic roadmap into actionable features and deliverables.

About the RoleJoin our innovative team at saris-ai, a pioneering applied AI startup based in San Francisco and Montreal. We are on a mission to redefine the banking industry by addressing a $100 billion annual challenge that is rapidly evolving. Our cutting-edge multi-turn AI agentic systems are at the forefront of this transformation.Our objective is to develop automated solutions that require sophisticated long-context reasoning, seamless tool integration across legacy systems, and stringent compliance mechanisms, particularly in scenarios where conventional answers are elusive.With successful real-world deployments and a rapidly expanding client base, we are seeking passionate and technically adept builders eager to make a significant impact from the start.We are in search of an AI Sales Engineer who will play a pivotal role in enhancing productivity and efficiency within financial institutions through innovative AI solutions. In this role, you will lead discovery calls with various departments to identify workflow challenges and design impactful AI-driven solutions. You will serve as the technical authority during sales cycles, assisting clients in recognizing problems, framing solutions, and articulating ROI.This position combines elements of customer engagement and workflow analysis.Your Key Responsibilities Include:Conduct discovery and technical scoping calls with potential clients to uncover operational inefficiencies in financial institutions.Develop workflow maps and reports to identify bottlenecks and pinpoint opportunities for agentic AI automation.Collaborate with the Sales team to co-manage the pre-sales process from initial discovery to proposal delivery.Engage with executive stakeholders, presenting clear and compelling insights on how Agentic AI can deliver measurable ROI and transform operations at scale.Work closely with cross-functional teams including sales, customer success, and product to ensure customer satisfaction and success.

We appreciate your interest in joining the Uncountable Engineering team!About the RoleAt Uncountable, we are on a mission to revolutionize R&D by creating an AI-first ecosystem. Our cutting-edge tools are designed to empower scientists at Fortune 500 companies to enhance their discovery processes utilizing Generative AI.As an LLM Applications Engineer, you will play a pivotal role in shaping our LLM infrastructure. You will not only build user interfaces but also architect retrieval systems, agentic workflows, and data pipelines that connect intricate experimental data with actionable AI insights, significantly modernizing the data interaction for top-tier researchers.

About Retell AIAt Retell AI, we are pioneering the future of call centers through innovative voice AI technology. Our cutting-edge solutions are transforming how companies engage with customers.In just 18 months since our inception, we've empowered thousands of businesses with our AI voice agents that efficiently manage sales, support, and logistics calls, significantly reducing the need for large teams of human agents. Supported by industry-leading investors including Y Combinator and Alt Capital, we've grown our annual recurring revenue from $5M to an impressive $36M while expanding our team from 5 to 20 talented individuals since 2025.Our ambitious vision for 2026 is to develop a state-of-the-art customer experience platform where entire contact centers are driven by AI. Unlike basic automation requiring constant human oversight, we’re engineering intelligent AI “workers” capable of serving as frontline agents, quality assurance analysts, and managerial roles, all while optimizing customer interactions continuously.We are rapidly expanding and seeking driven builders who thrive on solving complex technical challenges, act decisively, and wish to make a tangible impact in one of the fastest-growing voice AI startups.Join us in shaping the future!Recognized as a top 50 AI application in the a16z list: https://tinyurl.com/5853dt2xRanked #4 in Brex's Fast-Growing Software Vendors of 2025: https://www.brex.com/journal/brex-benchmark-december-2025Featured among the top startups on: https://leanaileaderboard.com/

About the RoleJoin Saris-AI, an innovative applied AI startup based in San Francisco and Montreal, where we are revolutionizing the banking industry. Our mission is to address a $100 billion annual challenge, growing rapidly each quarter, as we explore the potential of advanced multi-turn AI systems.We focus on automation challenges that require extensive contextual reasoning, tool integration with existing systems, and adherence to compliance requirements—problems that lack straightforward solutions.Our successful deployment of real AI agents managing customer workflows has led to a burgeoning client base, and we are expanding quickly. We seek highly skilled technical professionals who aspire to make a significant impact from the outset.Core Engineering TeamWe are in search of a passionate Software Developer who excels in dynamic and ambiguous settings. You should have experience guiding products from the initial version to large-scale implementation, and a penchant for crafting sustainable, elegant systems.Your Key ResponsibilitiesConceive, develop, test, deploy, maintain, and enhance AI-driven software solutions tailored for the fintech sector.Manage project timelines effectively, prioritizing tasks to deliver exceptional features.Contribute to product and business strategies as a key player, influencing both technical frameworks and overarching goals.Encourage and uphold best practices, including code reviews and testing.Candidate ProfileProven experience in backend/fullstack engineering, particularly within SaaS projects with significant impact.Extensive knowledge of Python (Django, Flask, FastAPI), TypeScript (React), Docker, and cloud platforms (AWS/GCP).Solid track record in designing, constructing, and optimizing distributed systems.Strong foundation in both relational and non-relational databases (PostgreSQL, Redis).Expertise in API design (REST, GraphQL) and deployment practices.Preferred QualificationsExperience building intricate workflow orchestration systems.Familiarity with cloud infrastructure.Background in creating integrations or data pipelines.A passion for mentoring and developing team capabilities.

Join Our Innovative Team at Retell AIRetell AI is at the forefront of revolutionizing the call center industry through advanced voice AI technology. In just 18 months since our inception, we have empowered thousands of businesses to optimize their sales, support, and logistics calls, which previously relied on large teams of human agents. Supported by prominent investors including Y Combinator and Alt Capital, we've achieved remarkable growth, scaling from $5 million to $36 million in annual recurring revenue (ARR) while expanding our talented team to 20 members.Our ambitious vision for 2026 is to develop a state-of-the-art customer experience platform, transforming entire contact centers with AI. Unlike traditional automation that requires ongoing human oversight, we are building intelligent AI "workers" capable of functioning as frontline agents, quality assurance analysts, and managers, constantly enhancing customer interactions.If you are a passionate innovator eager to solve complex technical challenges and make a tangible impact at one of the fastest-growing voice AI startups, we invite you to join us in shaping the future.Ranked among the top 50 AI applications by a16z: a16z List4th on Brex's Fast-Growing Software Vendors of 2025: Brex BenchmarkFeatured as a leading startup on: Leanaileaderboard

Join a pioneering team of former Google engineers who have developed ground-breaking defensive technologies, such as Safe Browsing and reCAPTCHA. We are on a mission to confront an urgent challenge: combating the rising tide of adversarial AI attacks that threaten organizations globally.Operating in stealth mode, we are targeting a lucrative $5B+ market that is primed for innovation. Conventional detection methodologies are proving inadequate against the speed and sophistication of AI-driven assaults. Current adversaries are leveraging AI to engineer tailored, high-evasion attacks, leaving traditional systems vulnerable.Your Role:You will design a network of AI agents that are rapid, cost-effective, and precise, collaborating to identify and neutralize emerging threats. Your work will dive deep into real-time threat data, continuously evolving your agents in a fast-paced environment. These agents will function under an orchestration layer that fosters quick adaptation and learning.The Excitement of the ChallengeRapidly Evolving Models: The landscape changes daily; solutions that worked yesterday may be outdated today.Intelligent Adversaries: We are engaged in a real-time arms race against cunning, AI-enhanced attackers crafting sophisticated payloads.No Existing Playbook: We are forging new detection paradigms as swiftly as threats evolve. This high-stakes work places you in the heart of the action from day one.If you thrive on solving challenging problems with rapid feedback, this is your opportunity.Why We Are Positioned to SucceedExpansive Market: The market is vast at $5B and expanding quickly, while established players struggle to adapt.Proven Track Record: Our team has previously developed the foundational technology for Safe Browsing (serving over 5B users) and reCAPTCHA (protecting more than 5M websites) during our time at Google.Experienced Team: This is our third endeavor in creating a category-defining security enterprise, and we know how to scale our technology and our organization effectively.Deeply Integrated AI and Security: We embed AI from the outset rather than layering it on top.Top Talent: We hire only the highest achievers; many on our team were in the top 1% of engineers at Google. If you excelled in your previous role, you will fit right in.Agility: We prioritize speed and efficiency in everything we do.

About Arize AIIn an era where AI is revolutionizing numerous sectors, the need for robust systems to monitor, troubleshoot, and enhance AI applications is paramount. Arize AI stands at the forefront as the premier observability and evaluation platform for AI and Agent Engineering, equipping AI developers with the necessary tools to deliver high-quality, dependable agents and applications. With Arize AX, teams can seamlessly manage their projects from initial prototype to production scale within a unified workspace, ensuring expedited and confident deployments.As a Series C company, we are supported by esteemed investors, having secured over $135M in funding and serving a rapidly expanding clientele of 150+ leading enterprises and Fortune 500 companies. Esteemed brands like Booking.com, Uber, Siemens, and PepsiCo utilize Arize to create effective AI solutions.Note: Though Arize operates as a remote-first company, Developer Relations roles frequently involve participation in live events. This position is tailored for candidates situated within the San Francisco Bay area, without a requirement for in-office work.The OpportunityOur Developer Relations team is dedicated to delivering an exceptional experience for our flagship products, Arize AX and Arize Phoenix. You will enhance business value by cultivating genuine relationships within the community at in-person events, crafting high-quality documentation, and creating compelling open-source demonstrations, blog posts, videos, and social media content. We are expanding our team to enhance our geographical outreach, focusing on candidates in the San Francisco Bay area.What You’ll DoKey ResponsibilitiesPromote awareness of Arize’s offerings and establish our reputation as a leader in AI evaluation and observability across diverse mediums: including social media, blogs, videos, and more.Enhance the onboarding journey for Arize users by developing, refining, and enhancing our product documentation.Craft tutorials, cookbooks, and open-source demo repositories to facilitate a smooth transition for users from initial exposure to advanced usage.