APIs Jobs

We are seeking a Junior Developer to join the Xsolla Partner Network (XPN) team, focusing on an automated content generation system. This role involves contributing to all stages of development, from stabilizing the existing vertical video pipeline for social media platforms like YouTube Shorts, TikTok, and Instagram Reels, to developing agentic architecture and building analytics. You will work with cutting-edge generative models and agentic tools on a real production product, gaining insights into the games industry and the creator economy. The position offers the opportunity to make independent technical decisions, build expertise in generative AI, and grow into a technical owner role.

n8n is seeking an Internal Context Engineer to build and operate the company's shared context infrastructure, referred to as the "company brain." This role is crucial for enabling both people and AI agents to reliably access accurate, well-structured, and appropriately governed knowledge across the organization. You will be responsible for shaping how knowledge is structured, contributed, accessed, and maintained, forming the context layer for n8n's agentic future. This involves designing the information architecture, onboarding and enabling teams to contribute knowledge, operating the context platform, and building for long-term trust and reuse.

AgentMail is seeking a Developer Success Engineer to serve as the primary technical point of contact for developers integrating with AgentMail's AI agent inboxes. This role focuses on independently solving technical challenges, understanding developer goals, and identifying recurring issues. The objective is to not just answer questions, but to understand the root cause, learn from developer experiences, and improve the product and its documentation.

As an engineer on the Data Team, you will operate as a technical leader on the foundational layer of the platform. This team owns Qualified's data end-to-end, including leads and accounts data models, ETL pipelines, Data 360, Salesforce sync, analytics and insights, data integrations, and Data APIs. Every product area and AI agent depends on this layer being correct, fresh, and fast. This is a newer team with significant greenfield opportunities, where you will shape the architecture of core pipelines and data models, set patterns for other teams, and transform inherited systems into a coherent platform. You will also directly contribute to the intelligence of AI agents by ensuring the data they rely on is accurate and flows seamlessly between systems.

$173k - $260k

Mem0 is building the memory layer for AI agents, enabling them to remember conversations, learn from interactions, and build context over time. We are a Y Combinator-backed company with significant funding, powering millions of AI interactions for enterprise customers and an open-source community. This full-time, onsite role in San Francisco, CA, offers a unique opportunity to own the AI product surface of the Mem0 Platform. You will be responsible for the end-to-end frontend development, setting the visual and interaction standards for our dashboard, playground, and documentation. Working directly with the CTO, research, and customers, you will translate complex memory problems into intuitive user interfaces, shipping AI products to real users.

$150k - $250k

Jeeves is seeking a Senior AI Engineer to own AI workflows end-to-end, from design and implementation to measurement and continuous improvement. This hands-on role requires an AI-native approach, utilizing coding agents and AI tools daily to drive efficiency. You will collaborate closely with Product and Backend Engineering teams, taking initiative to define and build solutions rather than waiting for detailed specifications. The position is ideal for individuals who thrive on solving complex problems and are looking for a steep learning curve in a fast-growing fintech company.

Physical Intelligence is building a platform to bring general-purpose AI into the physical world, powering robots with foundation models and learning algorithms. As an API Product Engineer, you will develop the core product surface that enables external companies to utilize Pi's models similarly to how they use LLM APIs today. This involves allowing them to bring their own data, fine-tune models, evaluate performance, and run low-latency inference within their own environments. You will own this entire experience, transforming close-knit collaborations into a scalable platform designed to support a vast number of robots.

OpenAI

API Agents is building the shared agent harness, tools, and infrastructure that turn OpenAI’s frontier models into systems capable of reliably completing real work. This role focuses on building the core systems behind the next generation of agents, designing reliable services and abstractions that help agents find context, use tools, retain knowledge, coordinate workflows, and take action safely. The position combines deep backend and infrastructure work with strong product judgment, offering opportunities to work across agent runtimes, orchestration, search, execution environments, identity, observability, and evaluations. Success in this role hinges on strong backend fundamentals, high agency, and the ability to translate fast-moving research into dependable production primitives.

$266k - $445k

SpaceXAI is building Super Intelligence to help humanity understand the universe. As a Product Engineer on the Grok Connectors team, you will build integrations that enable Grok, Cursor, and Grok Bot to perform real-world actions within commonly used tools such as Gmail, Outlook, Google Calendar, Microsoft Teams, GitHub, and Slack. You will be responsible for the end-to-end development of features, including OAuth sign-in, token management, tool schema design, ensuring reliability across millions of tool calls, and developing user interfaces for web, desktop, and mobile platforms. This role involves direct collaboration with enterprise customers and partners to deliver trustworthy connectors for large organizations.

ElevenLabs is seeking a RevOps Systems Architect to design and build the systems that power a modern, AI-driven go-to-market engine. This role goes beyond traditional Salesforce administration, focusing on the technical ownership of the entire GTM stack, including Salesforce, data, enrichment, engagement, billing, and AI tools. You will act as both an architect and a hands-on builder, setting the technical direction for CRM and GTM tooling and implementing solutions using technologies like Flows, Apex, SQL, and custom services. For larger initiatives, you will collaborate with the engineering team as a technical peer, contributing to scoping, design, and delivery.

LangChain is seeking a Senior Fullstack Engineer to join the team building LangSmith, their commercial observability and evals platform. This role offers the opportunity to significantly influence the platform's technical direction while collaborating with enterprise customers, developer end-users, and internal stakeholders. You will be instrumental in shaping the future of AI agent engineering by contributing to a product used by a significant portion of the Fortune 500.

$175k - $240k

LangChain is building the foundation for agent engineering, enabling developers to create production-ready AI agents. With significant funding and a rapidly growing platform, the company offers open-source tools and a comprehensive platform for building, evaluating, deploying, and operating agents at scale. The LangSmith team specifically focuses on building the core platform for observability, evaluation, and production reliability of AI systems, including tracing, annotation, and run rules. This role is crucial for defining what AI observability looks like at production scale.

$180k - $240k

Groq is building high-performance AI infrastructure designed to make inference fast, predictable, and scalable. Our infrastructure teams design and operate the systems that connect compute, data, and services at significant scale. We are looking for a Sr./Staff Network Engineer, AI/HPC to help architect, design, validate, and evolve the network infrastructure supporting Groq's rapidly growing AI compute environments. As a Sr./Staff Network Design Engineer, you will own network architecture and design across high-performance data center and AI infrastructure environments. You will translate capacity, performance, reliability, and business requirements into scalable network designs that can be deployed and operated consistently. This role requires deep expertise in data center networking, routing protocols, network architecture, automation, and large-scale infrastructure. You will work closely with network operations, data center engineering, compute, platform, security, and infrastructure teams to take designs from concept through validation and production deployment.

$270k - $366k

HappyRobot is seeking a Product Engineer Intern to develop internal applications and AI agents that enhance operational efficiency across product, engineering, deployments, and go-to-market teams. This role involves building software that is actively used by the HappyRobot team, with guidance from experienced engineers. You will collaborate directly with the CTO and Head of Product, and your work will directly impact various departments by creating tools, agents, and data pipelines to automate workflows and improve processes.

MeridianLink is seeking an AI Architect to define and lead the reference architecture for AI and intelligent automation across its internal business operations. This role will enable secure, scalable AI-powered workflows and accelerate enterprise-wide business transformation by designing, scoping, and implementing complex AI systems. The architect will own the end-to-end design and development of modern AI solutions and intelligent automation platforms that drive process optimization, advanced analytics, decision intelligence, and autonomous workflows across various business functions. Responsibilities include designing secure, reliable, and scalable solutions aligned with operational requirements, regulatory standards, and enterprise governance frameworks, combining deep technical expertise with a hands-on approach to architecture, engineering leadership, and business enablement.

$150k - $200k

Lambda, The Superintelligence Cloud, is seeking a Senior Systems Engineer to join their Enterprise AI Platforms team. This role focuses on building and scaling the internal systems that power Lambda's business, partnering across departments to implement tools, automate workflows, and ensure data integrity. You will be instrumental in designing, developing, and deploying software and services to enhance the availability, scalability, reliability, and efficiency of Lambda’s internal IT systems and platforms. The position requires a proactive approach to problem-solving, automation, and influencing the creation of new architectures for large-scale distributed systems, with a strong emphasis on AI infrastructure and tooling.

$206k - $275k

Attuned Intelligence is seeking a hands-on AI Solutions Engineer to build and enhance AI agents for their healthcare customers. This role involves translating customer requirements into functional agent capabilities, including designing prompts, conversation flows, and tool integrations to improve patient access and reduce administrative burdens. You will collaborate with platform engineers to prototype new features, test end-to-end experiences, and transform recurring customer needs into reusable solutions for the Attuned platform. The ultimate goal is to ensure customers have reliable agents that demonstrably improve their operations.

Anthropic

Anthropic's Environments organization is responsible for building and maintaining the infrastructure that enhances Claude's capabilities through reinforcement learning. This includes developing frameworks for researchers to build environments and the underlying infrastructure for running them, with a core mission to productionize research. The role involves embedding with research teams to understand their workflows and designing frameworks and APIs that accelerate their progress, ensuring these systems are understandable, ownable, and maintainable. A significant part of the role also includes ensuring the health, maintainability, monitoring, and ease of triage for production RL runs. The ideal candidate will possess deep Python expertise, a strong sense of API and framework design, and an intuitive understanding of complex system failures, particularly silent ones. Experience with stateful distributed systems like workflow engines or actor frameworks is a plus. The role requires comfort in navigating and abstracting complex research codebases, incrementally improving them while research continues, and leveraging AI tools for development with a focus on verification.

$405k - $605k

The Agent Analytics team at Amplitude builds systems to help customers understand and improve their AI agents by transforming agent traces, conversations, and evaluation results into actionable insights. These insights are then connected with the broader product experience through reliable, easily explorable, and fast-querying backend services and data infrastructure. As a Software Engineer I on this team, you will contribute to the foundation of a growing AI analytics product, starting with well-scoped backend and data pipeline features. You will gain experience processing agent traces, building APIs for data exploration and export, and enhancing the performance and reliability of analytics systems, learning how engineering decisions impact customer experience.

$125k - $188k

ElevenLabs is seeking a backend-leaning full-stack engineer to contribute to the development of next-generation Creative Agents. The goal is to make agents a primary tool for creation within ElevenCreative, enabling users to generate high-quality audio, image, and video without needing to be prompting experts. You will join a small team responsible for the agent's capabilities and architecture, with ownership spanning backend systems, agent infrastructure, and the user-facing experience. This role involves identifying user needs, prototyping, shipping features, and supporting them in production, while also improving and operating a live product.