Innovative Infrastructure Engineer at Composio | San Francisco

At Composio, we are revolutionizing the way agents interact with essential business tools such as GitHub, Gmail, Notion, Salesforce, and more. As a dynamic team of engineers, we tackle challenges from context to search, ensuring we provide the most effective bridge between your agents and their tools.We recently secured a $25 million Series A funding round led by Lightspeed, alongside notable investors like Guillermo Rauch (CEO of Vercel) and Dharmesh Shah (CTO of HubSpot). With a remarkable 3x increase in our annual recurring revenue this year, our diverse clientele includes innovative companies ranging from Y Combinator startups to industry leaders like Wabi, Glean, Zoom, and others.THE ROLEAs a Solutions Architect, you will play a crucial role in assisting our enterprise clients as they build advanced agent systems on our platform. You will engage in architecture reviews, advocate for best practices, and develop proof of concepts to demonstrate optimal solutions. This position requires a hands-on approach, as you will be writing code in customer environments, working with their data, and adhering to their unique constraints.WHAT YOU'LL DO?- Manage the technical relationship with our key accounts, including pre-sales discovery, architecture design, integration planning, and post-launch optimization.- Develop end-to-end proofs of concept utilizing TypeScript, Python, our SDK, and client technology stacks, ensuring the demonstration is practical rather than theoretical.- Troubleshoot complex customer issues in real-time, utilizing developer tools, analyzing logs, reproducing scenarios in notebooks, and filing actionable GitHub issues for the engineering team.- Create reference architectures and reusable code patterns for the team, facilitating smoother handoffs to future customers.- Collaborate with the engineering team on the enterprise roadmap, preparing design documents for recurring client requests.- Utilize Composio's product to enhance your own workflows, showcasing the capabilities of our offerings.

At Composio, we are revolutionizing the way agents connect with essential tools like GitHub, Gmail, Notion, Salesforce, and more. Our dynamic team of engineers is dedicated to solving intricate challenges in context and search, forging an effective bridge between your agents and their tools.Having successfully raised a $25M Series A from Lightspeed, alongside notable angel investors such as Guillermo Rauch (CEO of Vercel), Dharmesh Shah (CTO of Hubspot), and Gokul Rajaram, we have tripled our ARR this year. Our diverse clientele includes innovative companies from your YC cohort to Wabi, Glean, Zoom, and many others.What You'll DoDevelop internal tools to enhance the efficiency of our operationsManage banking, treasury, cash flow, and vendor negotiationsOversee key FP&A processes including budgeting, forecasting, and scenario analysisAssist in investor relations and fundraising efforts

Composio develops communication infrastructure that helps agents connect with essential tools such as GitHub, Gmail, Notion, and Salesforce. The engineering team addresses challenges related to context and search, aiming to make these integrations more accessible and useful for agents. The company recently closed a $25 million Series A led by Lightspeed, with additional backing from Guillermo Rauch (CEO of Vercel) and Dharmesh Shah (CTO of HubSpot). Composio has tripled its annual recurring revenue this year, serving clients that range from Y Combinator alumni to established businesses like Wabi, Glean, and Zoom. Role overview This full-stack internship is based in San Francisco. Interns contribute to both developer and consumer web interfaces, supporting the Composio platform and its users. What you will do Enhance the user experience for teams using Composio by working on both the Composio Platform and Composio For You web interfaces. Design and implement clean, effective interfaces for frontend and SDK projects. Collaborate directly with customers to build relationships and gather feedback for product improvements. Write clear documentation to support both users and developers.

Join Composio, where we are revolutionizing the infrastructure that empowers agents to seamlessly connect with the tools you utilize daily, including GitHub, Gmail, Notion, Salesforce, and more. Our dedicated team of engineers is tackling challenges from context management to search optimization, striving to create the most efficient bridge between your agents and their essential tools.Having secured a $25M Series A funding from Lightspeed, along with support from prominent angels such as Guillermo Rauch (CEO of Vercel), Dharmesh Shah (CTO of HubSpot), and Gokul Rajaram, we have experienced significant growth, tripling our ARR this year. Our customers range from fellow Y Combinator alumni to established companies like Wabi, Glean, and Zoom.Your ResponsibilitiesEnhance our platform primitives and APIs, including authentication, automatic refreshes, triggers, tool search, planning, and sandbox management.Oversee multiple runtimes for code execution across Lambdas and Firecracker.Optimize performance through tracing, CPU/heap profiling, database query enhancements, and workflow optimization.Collaborate closely with product engineering teams and customers to effectively manage their workloads and improve our product.Produce clear and comprehensive documentation.Essential QualificationsCore Platform Engineering Skills: Extensive experience in scaling backend distributed systems, maintaining reliable systems while delivering quickly, and managing multiple platform components simultaneously.AI Expertise: Familiarity with building and working with language models.Linux Proficiency: Comfortable working in a Linux environment.Effective Communication: Ability to write well-structured documentation and articulate complex ideas clearly.Interpersonal Skills: Cultivate trust and acknowledge areas for growth.Preferred QualificationsExperience with cloud infrastructure and serverless architecture.

At Composio, we are pioneering the infrastructure that enables seamless communication between agents and the essential tools you rely on for work, such as GitHub, Gmail, Notion, and Salesforce. As a compact team of dedicated engineers, we tackle challenges ranging from context to search, striving to create the most effective bridge between your agents and your tools.We recently secured a $25 million Series A funding from Lightspeed, backed by notable angels like Guillermo Rauch (CEO of Vercel), Dharmesh Shah (CTO of HubSpot), and Gokul Rajaram. Earlier this year, we tripled our ARR, with clients spanning from your friends in the YC batch to Wabi, Glean, Zoom, and many others.What You'll Do- Develop sharp, focused products and experiments aimed at boosting awareness, activation, and adoption — often within a single day.- Optimize opportunities: define aggressively, deliver swiftly, and let actual usage data inform further investment decisions.- Implement comprehensive tracking, analyze data, and allow insights (rather than intuition) to direct future developments.- Take full ownership of growth initiatives from conception to design, frontend development, deployment, and performance measurement.

Join Composio as we revolutionize the way agents communicate with the tools you rely on, such as GitHub, Gmail, Notion, Salesforce, and more. As part of our dynamic team of engineers, you will tackle challenges from context to search, creating a seamless connection between agents and their essential tools.We've successfully raised a $25M Series A from Lightspeed, backed by visionary investors like Guillermo Rauch (CEO of Vercel), Dharmesh Shah (CTO of Hubspot), and Gokul Rajaram. This year, we have tripled our ARR, serving a diverse clientele that includes startups from Y Combinator to established companies like Wabi, Glean, and Zoom.Your ResponsibilitiesDevelop large evaluations using real tool-calling data to assess model performance in long-term tool execution.Address search challenges by identifying semantically similar tools and optimizing cached tool execution paths and plans.Train expansive agentic harness systems to enhance session accuracy using millions of real tool calls as baseline data.Essential QualificationsIf you're exceptionally skilled, nothing is a strict requirement.Research ExpertiseAbility to independently advance research objectives.Skilled in rapid prototyping and testing of experiments.Collaborate with product and engineering teams to transition research concepts into production swiftly.Strong Writing Skills — Capable of documenting effectively and articulating complex ideas clearly.Interpersonal Skills — Foster trust and acknowledge areas for growth.

At Composio, we are developing advanced infrastructure that enables agents to seamlessly interact with essential work tools such as GitHub, Gmail, Notion, Salesforce, and more. Our dedicated team of engineers is committed to tackling challenges ranging from contextual understanding to search functionalities, ensuring we provide an exceptional bridge between your agents and their tools.Having secured a $25M Series A funding from Lightspeed, alongside prominent angel investors like Guillermo Rauch (CEO of Vercel), Dharmesh Shah (CTO of HubSpot), and Gokul Rajaram, we have experienced remarkable growth, tripling our ARR at the start of this year. Our clientele includes notable names from Y Combinator cohorts to Wabi, Glean, Zoom, and beyond.Your RoleEnhance the experience of teams utilizing our platform by refining our core APIs and SDK.Create intuitive interfaces for both frontend and SDK applications.Take ownership of product development from concept through to production.Collaborate closely with customers to cultivate their loyalty while enhancing the product.Craft clear and concise documentation.

At Composio, we are passionately focused on crafting the infrastructure for AI agents, leaving little room for mundane social media posts. Our team operates under tight time constraints, and our current social media presence is managed by someone who perhaps did not fully consider the implications of our bio’s phrase “build on top of us.”Despite tripling our ARR this year, we have seen a significant drop in followers—half of our employees don’t even follow us, and we compensate them for their contributions.How to ApplyIf you’ve made it this far, you might be curious about applying. Please DM @karanvaidya6, @cryogenicplanet, @itsaqd, or @composio with a critique of our current social media strategy.Disqualifications:Screen time under 7 hours/dayHas posted #grindset or #mondaymotivation unironicallyBio includes terms like "growth hacker", "content creator", or any emojiEveryone at your last job liked youQualifications:Must be funnier than our current social media (it’s a low bar)Has ratio'd a blue check (screenshots appreciated)Understands that "thought leadership" is often a misnomerNice to Have:Has survived a community noteKnows what a reply guy arc isReady with an alt accountThis position is in-office in San Francisco. Compensation is generous enough that you won’t have to resort to LinkedIn for opportunities.If you’re hesitant, you can still apply through Ashby, but we’ll know.

About ChalkAt Chalk, we are revolutionizing the data platform that drives the future of machine learning applications. Our mission is to eliminate the complexity, latency, and scalability issues that have historically limited ML capabilities. Our platform seamlessly integrates Rust-speed performance with user-friendly tools that developers adore. Renowned companies trust Chalk to combat fraudulent credit card transactions, verify identities, and enhance clean energy utilization. Recently, we secured a $50 million Series A funding, spearheaded by Felicis.About the RoleWe are on the lookout for talented engineers to join our Infrastructure team. This is a unique opportunity to become one of our early hires and significantly impact a fast-growing startup. You will have the autonomy to solve complex engineering challenges and take ownership of your projects.We seek a platform engineer with a solid background in infrastructure engineering. At Chalk, we are tackling problems related to DBMS query planning, optimization, compilers, and distributed analytical data processing systems.Chalk employs dynamic and static analysis of Python code to optimize arbitrary user Python code, orchestrate the necessary infrastructure implied by that code, and track metadata regarding data flow through our systems.Our team works in the office five days a week. We are flexible with unavoidable conflicts, but this is not a hybrid position.What You Will DoDevelop code to automate the orchestration and provisioning of infrastructure to implement Chalk technology for our customers and prospects.Create a robust platform for managing our hosted services and deploying Chalk into customer-owned cloud environments across AWS and GCP.Collaborate closely with our Engineering and Sales teams.Contribute to interviewing and expanding the Engineering team.What We’re Looking ForMinimum of 2 years of experience in software development for automated infrastructure management.Proficiency in Python, Go, and/or Terraform.Hands-on experience with AWS and/or GCP.Strong collaborative skills in both technical and non-technical teams.

The OpportunityJoin rowspace as an Infrastructure Engineer and play a pivotal role in constructing and safeguarding the core of our cutting-edge AI data platform. In this position, you'll engineer systems capable of managing extensive volumes of sensitive financial information while adhering to rigorous security and compliance standards. Your work will involve real-time integration of public data with private, tenant-isolated customer data at scale.Key ResponsibilitiesDesign and implement scalable infrastructure to support our AI-driven knowledge engine that processes both structured and unstructured financial data.Establish a security-first architecture for private cloud environments, ensuring data governance aligns with financial services regulations.Create resilient data ingestion pipelines that accommodate a variety of data sources, from CapIQ feeds (structured data) to internal SharePoint documents (unstructured data).Develop comprehensive monitoring and alerting systems for our BYOC platform.Enforce access controls and maintain audit trails to ensure that AI interactions can be traced back to primary sources.Collaborate with our AI Research and Product teams to enhance infrastructure for LLM inference and training workloads, as well as agent infrastructure development.Establish CI/CD practices and infrastructure-as-code for swift, reliable deployments across multiple cloud providers.

At Composio, we are creating cutting-edge infrastructure that empowers agents to seamlessly connect with the essential tools you rely on for work, such as Github, Gmail, Notion, Salesforce, and more. As a compact team of dedicated engineers, we tackle challenges ranging from context to search, ensuring we deliver the most effective bridge between your agents and the tools they use.This year, we've successfully secured a $25M Series A funding from Lightspeed, alongside contributions from notable angel investors including Guillermo Rauch (CEO of Vercel), Dharmesh Shah (CTO of Hubspot), and Gokul Rajaram. In the first quarter of this year, we achieved a remarkable threefold increase in our annual recurring revenue (ARR), with clients ranging from fellow Y Combinator alumni to companies like Wabi, Glean, and Zoom.Your RoleEnhance the experience of teams leveraging our platform by refining our core APIs and SDK.Design and implement user-friendly interfaces for both frontend applications and SDKs.Take ownership of product development from concept to production.Collaborate closely with customers to foster strong relationships while continuously improving our product.Compose clear and concise documentation for our offerings.

About VibecodeAt Vibecode, we are revolutionizing the way software is created. Our innovative platform empowers anyone to articulate an idea and instantly transform it into a fully functional application—no coding skills required.We are tackling one of the most significant challenges in computing: aligning human intent with software execution. This endeavor necessitates groundbreaking advancements in AI reasoning, code generation, and user experience design.Our impressive seed funding comes from some of the top investors globally, including Alexis Ohanian (776), Arielle Zuckerberg, Cyan Banister (Long Journey), Ali Partovi, Suzanne Xie (Neo), and numerous esteemed angels from Google, Expo, OpenAI, and beyond.About the RoleAre you eager to be at the cutting edge of infrastructure design for a consumer product that will reach millions? If so, this opportunity is perfect for you.We seek an Infrastructure Engineer to develop the foundational systems that support millions of AI-generated applications. You will design a platform capable of securely hosting thousands of user-created applications concurrently while ensuring optimal performance and unwavering reliability.Your Responsibilities:Develop and implement secure sandbox environments for executing untrusted AI-generated code at scale.Create orchestration systems for stateless containers capable of launching over 10,000 applications simultaneously.Architect backend API services for real-time code generation, compilation, and deployment.Establish monitoring and observability systems for complex, multi-tenant application infrastructures.Design auto-scaling solutions to manage unpredictable traffic patterns from viral consumer applications.Build security-focused infrastructure that isolates user applications while preserving performance.This is not conventional infrastructure work. You will face unique challenges related to large-scale code execution, develop systems that are yet to be created, and establish infrastructure paradigms suited for the AI-native era.

About Chalk Inc. Chalk Inc. is revolutionizing the data platform landscape to empower the next generation of machine learning applications. We are dismantling traditional barriers of complexity, latency, and scalability that have historically limited ML capabilities. Our platform delivers Rust-speed performance paired with developer-friendly tools, making it the preferred choice for leading companies tackling issues such as preventing fraudulent credit card transactions, identity verification, and optimizing clean energy generation. Recently, we secured a $50 million Series A funding round, led by Felicis. About the Role We are seeking exceptional engineers to join our Infrastructure team. This is a unique opportunity to become an early employee in a high-growth startup, where you can make a significant impact. In this role, you will address complex engineering challenges with a high level of autonomy and ownership. Note: Our team works in the office five days a week. While we are flexible during unavoidable conflicts, this position is not hybrid. We are looking for a platform engineer with a solid foundation in infrastructure engineering. At Chalk, we tackle challenges from database management systems (DBMS), query planning and optimization, compilers, and distributed analytical data processing systems. Our team utilizes both dynamic and static analysis of Python programs to optimize arbitrary user Python code, orchestrate infrastructure based on the code structure, and track metadata concerning data flow through these systems. What You Will Do Develop automation code for orchestrating and provisioning infrastructure to execute Chalk technology for our customers and prospects. Create a management platform for our hosted services and oversee the deployment of Chalk in customer-owned cloud environments across AWS and GCP. Collaborate closely with our Engineering and Sales teams. Assist in interviewing and expanding the Engineering team. What We Are Looking For At least 2 years of experience in writing software for automating infrastructure management. Proficient in Python, Go, and/or Terraform. Experience with AWS and/or GCP. Strong collaboration skills.

We are seeking a highly skilled Senior Infrastructure Engineer to join our dynamic team at Bitgo. In this pivotal role, you will design, implement, and maintain our infrastructure systems, ensuring optimal performance and security. You will collaborate with cross-functional teams to develop innovative solutions and enhance our operational efficiency.Your expertise will be crucial in managing complex infrastructure environments and leveraging automation to streamline processes. If you are passionate about infrastructure engineering and are looking to make a significant impact in a fast-paced, cutting-edge environment, we want to hear from you!

At Composio, we are revolutionizing the infrastructure that enables agents to seamlessly communicate with essential workplace tools such as GitHub, Gmail, Notion, Salesforce, and more. Our dynamic team of engineers is dedicated to tackling challenges in context and search, ensuring we provide the most efficient connection between your agents and their tools.We proudly secured a $25M Series A funding round from Lightspeed, alongside notable angel investors including Guillermo Rauch (CEO of Vercel), Dharmesh Shah (CTO of HubSpot), and Gokul Rajaram. Earlier this year, we tripled our Annual Recurring Revenue (ARR), and our clientele spans from fellow Y Combinator alumni to esteemed companies like Wabi, Glean, Zoom, and many others.THE ROLEAt Composio, hiring is our paramount focus. Currently, all hiring activities are personally overseen by the founders, and every role is built from the ground up. We are in search of a dedicated individual who can manage the entire recruitment process, develop in-house technical screening capabilities, and facilitate successful hires.WHAT YOU'LL DO?- Take ownership of sourcing candidates for all open positions by identifying talent on GitHub, X, hackathon leaderboards, academic paper authors, and within the open-source communities relevant to our clientele.- Conduct technical screenings independently—review code, ask insightful follow-up questions, and distinguish meaningful signals from noise. You will serve as the primary technical filter. Manage the candidate experience throughout the hiring process and coordinate interviews with relevant team members.- Create a comprehensive recruiting playbook from scratch, including structured outreach strategies, screening rubrics, calibration sessions, and scorecards. Document processes to ensure scalability beyond your tenure.- Monitor pipeline metrics and identify areas for improvement. Analyze funnel conversion rates, source quality, time to offer, and offer acceptance rates, and present data during weekly hiring reviews.- Collaborate with engineering and go-to-market leaders to translate ambiguous requests into targeted profiles, sourcing strategies, and trusted screening processes.- Utilize Composio's product to streamline outreach, track candidates, and generate reports. (Our product is excellent, making this easier than anticipated.)ESSENTIAL QUALIFICATIONS- While specific qualifications are not mandatory if you excel in your role, we expect a strong foundation in core technical recruiting.

At Greptile, we are on a mission to develop intelligent agents that autonomously verify code modifications. Our current focus involves utilizing AI to analyze pull requests on GitHub, effectively identifying bugs and enforcing coding standards. With our technology, we review nearly 1 billion lines of code each month for over 3,000 companies.Challenges We Are Excited To TackleDeveloping agents that can learn coding standards through experience, similar to how new hires adapt.Determining customer-specific preferences for pull request feedback using sample-efficient reinforcement learning to enhance signal-to-noise ratios.Implementing automated deployments of feature branches and leveraging agents to stress-test the application for bug detection.Our Growth TrajectoryServing over 7,000 customers.Successfully raised $30 million from prominent investors including Benchmark, Y Combinator, Paul Graham, and Initialized.Our TeamWe have curated a highly skilled team that has successfully scaled vital functions at leading companies such as Stripe, Google, Figma, and others.Key ResponsibilitiesDesign and implement resilient infrastructure to accommodate Greptile's expanding user base.Collaborate with our largest enterprise clients to facilitate the deployment of Greptile within their environments.Streamline the on-premise deployment process to support smaller clients with minimal hands-on intervention.

About KernelKernel is a cutting-edge developer platform that offers Lightning-Fast Browsers-as-a-Service tailored for browser automation and web agent creation. Our API and MCP server enable developers to seamlessly launch browsers in the cloud without the hassle of infrastructure management.Our serverless browser platform takes care of the complex tasks: autoscaling reliable browser infrastructure, ensuring observability, and managing the intricate details of web interactions, allowing developers to concentrate on their agent functionalities rather than the underlying processes. Kernel brings AI to life, making it practical and powerful, empowering developers to deploy agents that can effectively engage with the digital landscape.We are trusted by teams at Cash App, Rye, and numerous others for diverse applications like in-depth research, QA automation, and real-time web analysis. We have successfully secured $22M in funding from notable investors including Accel, YCombinator, Vercel, Paul Graham, Solomon Hykes (Docker), David Cramer (Sentry), Charlie Marsh (Astral), among others.With just one line of code, you can deploy any web agent to our cloud. The rest is in your hands. If you're passionate about developing critical infrastructure for the next generation of AI applications, we would love to connect.

About NumeralNumeral is revolutionizing the automation framework for online commerce, beginning with the often tedious task of sales tax compliance. We take care of everything from registration to remittance, providing an exceptional service that allows e-commerce businesses to concentrate on their core mission: expanding their products, customer base, and teams.As one of the rapidly growing companies from Y Combinator’s Winter 2023 cohort, we are backed by prestigious investors such as Benchmark Capital. Our team boasts extensive experience from the pioneering days at Stripe, Airbnb, Notion, and other leading firms, and we are poised to bring that same level of expertise, speed, and ambition to an industry ripe for transformation.Numeral may be small, but our impact is significant. Our growth is already approaching unmanageable levels, meaning each new hire will play a crucial role in shaping our company’s future. If you’re eager to join as an early team member and desire the kind of ownership that can define your career, we would love to connect with you.MissionOperating an online business today often requires juggling numerous responsibilities, many of which are not why founders launched their ventures. Our mission is to alleviate the administrative and accounting pressures that divert businesses from their passions.We have already assisted hundreds of merchants in sidestepping the headache of establishing large finance teams solely to manage tax compliance. Looking ahead, we aim to broaden our positive impact by developing the automation layer that enables online businesses to remain agile, compliant, and prepared for the future.About the RoleWe are seeking a foundational Software Engineer (Infrastructure) who excels at tackling complex distributed systems challenges at scale. In this role, you will design and implement core infrastructure, enhance service reliability and observability, and guarantee the platform’s scalability as we accommodate growing transaction volumes and integrations.This is a pivotal role with high leverage: your contributions will shape the architecture and technical direction of our infrastructure platform, directly influencing our customers’ experience and the trajectory of the company.ResponsibilitiesDesign and develop highly scalable, secure, and reliable infrastructure to support critical APIs, services, and data pipelines.Lead infrastructure architecture decisions focusing on performance, observability, and fault tolerance.

About UsAt Salient, we are at the forefront of developing the AI infrastructure that will revolutionize financial operations, beginning with the automation of intricate and challenging workflows in loan servicing.Supported by prominent investors including a16z and Y Combinator, we have successfully raised $65 million in Series A funding.Achieving 8-figure ARR within less than two years, we are currently serving over 20% of the auto lending industry, managing millions of real customer calls and transactions each day.Our solutions are fully operational with major financial institutions, moving beyond mere proofs of concept.Excitingly, we are expanding into new segments of financial services!Our team thrives in an in-person office culture located in San Francisco, CA.We pride ourselves on being fully integrated with our clients, owning the entire tech stack, and rapidly advancing to implement modern AI in regulated sectors where precision, reliability, and performance are paramount.About the RoleWe are seeking a dedicated Staff Infrastructure Engineer who will architect and oversee the systems that enable Salient to scale effectively. In this influential individual contributor role, you will focus on infrastructure engineering, shaping how we build, deploy, and manage the infrastructure that handles millions of daily financial transactions and customer interactions. You will establish the technical direction for reliability, scalability, and developer velocity across the stack, ensuring that our platform is prepared for future developments.Why Join Us?We are among the fastest-growing companies in the Voice AI sector, having quadrupled our revenue last year and now managing close to one million calls daily.You will enjoy significant ownership of your work and contribute to our growth journey, both in business and engineering.As an AI-native organization, we continuously stay ahead in AI tools and engineering best practices, and you will have a direct hand in propelling this forward.Our culture is straightforward and results-driven, focused on building a successful and highly profitable business.Key ResponsibilitiesLead architectural decisions and technical evaluations for infrastructure-critical projects.Design, implement, and manage the cloud infrastructure (AWS/GCP) that powers Salient—covering everything from compute and networking to storage and observability.