Circle.so

Build and ship full-stack AI projects using Ruby on Rails backend and React frontend, optimize AI infrastructure for production LLM inference, and collaborate with cross-functional teams. | 5+ years full-stack engineering on large-scale web apps, proficiency in Ruby on Rails, ReactJS, MySQL/PostgreSQL, experience with AI-driven backend systems, and production deployment of LLM use cases. | About Us Circle is building the world's leading all-in-one platform for online communities. We make it possible for creators, coaches, educators, and businesses to bring together their audience with engaging discussions, live streams, events, chat, courses, and payments — all in one place, all under their own brand. We're proud to be a fully remote company of around 200 (and growing!) team members from 30+ countries around the world. We seek exceptional individuals around the world, set them up to do the best work of their lives, and in turn, create a meaningful impact in their own lives. We don't track hours, but we do manage for high expectations very closely. We collaborate across time zones, are highly async, and like to document a lot. Twice a year, we bring the whole company together in beautiful places around the world for our company offsites. So far, we've hosted offsites in Turkey, Portugal, Mexico, Thailand, Colombia, Italy, Ireland, and more, with still more to come! Check out our Careers page for more about working at Circle. About the role The Applied AI team at Circle is at the forefront of leveraging AI to drive innovation across our company. We're looking for a strong full-stack engineer who is proficient in web frameworks, backend development, and infrastructure. You will work on exciting projects such as AI agents, Retrieval-Augmented Generation, internal tooling for customer-facing teams, fine-tuning models, and building infrastructure for LLM inference. If you're passionate about working on real production use cases of large language models (LLMs) and want to contribute to transformative AI applications, this role is for you. What you'll be doing • Ship full-stack AI projects end-to-end on a product built in Ruby on Rails backend and React frontend. • Build and integrate components for AI infrastructure and optimize them for performance and reliability to support production-level inferencing. • Improve processes, tools, and systems to scale AI solutions across Circle. • Help us stay up-to-date with the cutting-edge AI research, techniques, and tools. • Work closely with Circle's leaders throughout the feature design process. • Work closely with our designers to create a world-class user experience. • Foster a bias for action, prioritizing speed of iteration without compromising on the quality of code or user experience. What you'll need to be successful • 5+ years experience working as a full-stack engineer on complex web applications with significant scale (100k+ rpm, 100GB+ databases). • Strong proficiency in Ruby on Rails, MySQL / Postgresql, ReactJS. Familiarity with both frontend and backend is necessary, but a high degree of proficiency in both is not a requirement. • Experience building backend systems and infrastructure for AI-driven products. • You have a track record of working on full-stack AI projects, including deploying at least 1 production-ready use case of LLMs at scale. • A desire to work in an environment which values speed of iteration and individual autonomy, while also embracing personal accountability and the ability to collaborate effectively as part of a dynamic team. • Comfortable in a fast-paced environment with a certain level of ambiguity, especially when learning and picking up new technologies when projects require it. • Strong alignment with our values, find our values on our career page if you haven't read up on them yet. • You are proficient in English (spoken, written, and reading) at a CEFR Level C2 / ILR Level 5. $130,000 - $140,000 USD per year The cash compensation range shown is a starting point. In addition to equity, benefits and perks, your cash compensation is subject to an annual review and increase on a once per year basis. The fun stuff • Fully remote: work from anywhere in the world! • Autonomy and trust to do your job: we care about outcomes over everything else. • Paid time away: all employees are given 35 days of PTO annually. We also offer a paid sabbatical after 5 years. • Generous U.S. benchmarked compensation and startup equity no matter where you are in the world.* • Awesome medical coverage with 100% coverage for you and your family, or medical reimbursement options where applicable!* • Parental leave for parents expanding their family, or just starting one. • Home office stipend to help you get up and running. • Learning & development stipend to help you level up your professional skills. • Annual bonus potential for roles that don't already receive variable income or commission. • Company retreats: Twice a year, the Circle team gets together for a fully paid company retreat in incredible places around the world! We've had past retreats in Colombia, Portugal, and Mexico, with more planned on the horizon. • Check out our Careers page for more. • Your role, location and unique circumstance may affect this. Diversity, Equity & Inclusion As a fully-remote international company, diversity is baked into our DNA. Here's how our CEO, Sid Yadav, frames our hiring mission: "let's find talent in underserved and under-represented corners of the world, set them up to do the best work of their lives, and in turn, change their life." To achieve this hiring mission, we offer competitive U.S. benchmarked compensation no matter where someone's located in the world, and we proactively seek candidates who expand representation of backgrounds, cultures and lived experiences in our teams. Equal Employment Opportunity Circle is an equal opportunity employer and as such, we do not discriminate on the basis of race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability, or any other characteristic protected by applicable laws. If you require any accommodations during the recruitment process, please let us know and we will work with you to meet your needs. How We Use Candidate Data At Circle, we are committed to protecting your personal information. As a job applicant, the personal data you provide to us is collected and processed in accordance with the General Data Protection Regulation (GDPR) in the EU and the California Consumer Privacy Act (CCPA). This notice outlines the types of personal information we collect, the purpose for collecting it, and your rights. Information We Collect: We collect the following categories of personal information from job applicants: • Contact information (such as name, email address, phone number) • Employment history and qualifications • Education history • References and any other information you choose to share with us during the application process Purpose of Collection: We collect this information for the following purposes: • To assess your qualifications and suitability for the position • To communicate with you during the recruitment process • To comply with legal and regulatory obligations Your Rights Under GDPR and CCPA: You have the following rights regarding your personal information: • The right to request access to the personal information we hold about you. • The right to request the deletion of your personal information, subject to certain legal exceptions. • The right to opt out of the sale of your personal information (Note: We do not sell personal information). For more information about how we handle your personal data or to exercise your rights, please refer to our full Privacy Policy. By submitting your application, you acknowledge that you have read and understood this privacy notice.

Develop and maintain frontend features for Circle's Email Hub and community platform using React and Tailwind CSS, collaborate with backend and design teams, and improve codebase quality. | 5+ years senior frontend experience with React, TypeScript, Tailwind CSS, API integration, strong architectural judgment, excellent communication, and experience working remotely. | About Us Circle is building the world's leading all-in-one platform for online communities. We make it possible for creators, coaches, educators, and businesses to bring together their audience with engaging discussions, live streams, events, chat, courses, and payments — all in one place, all under their own brand. We're proud to be a fully remote company of around 200 (and growing!) team members from 30+ countries around the world. We seek exceptional individuals around the world, set them up to do the best work of their lives, and in turn, create a meaningful impact in their own lives. We don't track hours, but we do manage for high expectations very closely. We collaborate across time zones, are highly async, and like to document a lot. Twice a year, we bring the whole company together in beautiful places around the world for our company offsites. So far, we've hosted offsites in Turkey, Portugal, Mexico, Thailand, Colombia, Italy, Ireland, and more, with still more to come! About the role In October 2024, our team released an exciting new extension of Circle: Email Hub. We're looking for a Senior Front-end Software Engineer to join our Email Hub team as we aim to make Circle the top choice for creator/brand-led communities. You'll be working on our Email Workflows and Editor. In this role, you will partake in all stages of the development lifecycle, from initial task definition to final deployment. As a senior engineer, you'll break down large epics into actionable tasks, follow through with development and testing, review PRs, push updates to production, and gradually release behind feature flags. Your responsibilities will also include bug-fixing and continuous improvement of the codebase. This role requires a high level of technical proficiency and a strong understanding of software development best practices. What you'll be doing • Work autonomously on a frontend architecture written in React and Tailwind CSS. • Integrate with our Ruby on Rails backend through a REST API. • Build critical features and improvements to Circle community platform, our Email Hub platform and Workflows (automations) tools. • Improve the quality of our codebase, identify architectural deficiencies, and create achievable paths to solve/evolve them. • Work closely with Circle's leaders throughout the feature spec + design process. • Work closely with our designers to design and develop a world-class user experience. What you'll need to be successful • Strong alignment with our values, find our values on our career page if you haven't read up on them yet • 5+ years experience working as a Front-end engineer on complex web applications • Strong proficiency in React, TypeScript, Tailwind CSS and working with APIs. • Strong judgment and attention to detail when it comes to architectural, product, design, and process decisions. Your judgment should inspire a high level of trust within the team. • A desire to work in an environment which values speed of iteration and individual autonomy, while also embracing personal accountability and the ability to collaborate effectively as part of a dynamic team. • Motivation to understand the business, our users, their needs & goals, and to deliver results. • Comfortable in a fast-paced environment with a certain level of ambiguity. • Great communication skills both in writing and verbal/oral (English). • Adaptable with the ability to change direction quickly if necessary. • Familiar with agile software development principles. • Should be able to lead a complex project end to end with judgment and attention to detail when it comes to architectural, product, design, and process decisions, your judgment should inspire a high level of trust within the team. • Experience working on a fully distributed remote team. Bonus points • Previous experience working with community platforms. • Experience working with a Ruby on Rails backend. • Experience working on Email editors, with email deliverability, workflow solutions, or in the creator space. • Experience at a fast-growing start-up. • A track record of picking up new technologies and skills as you ship high-quality code $130,000 - $140,000 USD per year The cash compensation range shown is a starting point. In addition to equity, benefits and perks, your cash compensation is subject to an annual review and increase on a once per year basis. The fun stuff • Fully remote: work from anywhere in the world! • Autonomy and trust to do your job: we care about outcomes over everything else. • Paid time away: all employees are given 35 days of PTO annually. We also offer a paid sabbatical after 5 years. • Generous U.S. benchmarked compensation and startup equity no matter where you are in the world.* • Awesome medical coverage with 100% coverage for you and your family, or medical reimbursement options where applicable!* • Parental leave for parents expanding their family, or just starting one. • Home office stipend to help you get up and running. • Learning & development stipend to help you level up your professional skills. • Annual bonus potential for roles that don't already receive variable income or commission. • Company retreats: Twice a year, the Circle team gets together for a fully paid company retreat in incredible places around the world! We've had past retreats in Colombia, Portugal, and Mexico, with more planned on the horizon. • Check out our Careers page for more. • Your role, location and unique circumstance may affect this. Diversity, Equity & Inclusion As a fully-remote international company, diversity is baked into our DNA. Here's how our CEO, Sid Yadav, frames our hiring mission: "let's find talent in underserved and under-represented corners of the world, set them up to do the best work of their lives, and in turn, change their life." To achieve this hiring mission, we offer competitive U.S. benchmarked compensation no matter where someone's located in the world, and we proactively seek candidates who expand representation of backgrounds, cultures and lived experiences in our teams. Equal Employment Opportunity Circle is an equal opportunity employer and as such, we do not discriminate on the basis of race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability, or any other characteristic protected by applicable laws. If you require any accommodations during the recruitment process, please let us know and we will work with you to meet your needs. How We Use Candidate Data At Circle, we are committed to protecting your personal information. As a job applicant, the personal data you provide to us is collected and processed in accordance with the General Data Protection Regulation (GDPR) in the EU and the California Consumer Privacy Act (CCPA). This notice outlines the types of personal information we collect, the purpose for collecting it, and your rights. Information We Collect: We collect the following categories of personal information from job applicants: • Contact information (such as name, email address, phone number) • Employment history and qualifications • Education history • References and any other information you choose to share with us during the application process Purpose of Collection: We collect this information for the following purposes: • To assess your qualifications and suitability for the position • To communicate with you during the recruitment process • To comply with legal and regulatory obligations Your Rights Under GDPR and CCPA: You have the following rights regarding your personal information: • The right to request access to the personal information we hold about you. • The right to request the deletion of your personal information, subject to certain legal exceptions. • The right to opt out of the sale of your personal information (Note: We do not sell personal information). For more information about how we handle your personal data or to exercise your rights, please refer to our full Privacy Policy. By submitting your application, you acknowledge that you have read and understood this privacy notice.

Manage and coordinate community communications, operations, events, and moderation to enhance member engagement and experience. | 3+ years experience in community operations or management, excellent communication skills, project management, data-driven improvements, and tech proficiency. | About Us Circle is building the world's leading all-in-one platform for online communities. We make it possible for creators, coaches, educators, and businesses to bring together their audience with engaging discussions, live streams, events, chat, courses, and payments — all in one place, all under their own brand. We're proud to be a fully remote company of around 180 (and growing!) team members from 30+ countries around the world. We seek exceptional individuals around the world, set them up to do the best work of their lives, and in turn, create a meaningful impact in their own lives. We don't track hours, but we do manage for high expectations very closely. We collaborate across time zones, are highly async, and like to document a lot. Twice a year, we bring the whole company together in beautiful places around the world for our company offsites. So far, we've hosted offsites in Turkey, Portugal, Mexico, Thailand, Colombia, Italy, Ireland, and more, with still more to come! About the Role: We have over 10,000 paying communities powered by Circle — and that number is growing fast, month over month. Most of our customers rely on the Circle Community as their go-to hub for learning how to build successful communities: it's where they explore what's possible with the product, get support from peers, and access best practices that help them grow. But as our community scales, so does the complexity. We're running more programs, hosting more events, and reaching more members — but there's currently no single person owning the systems and communication that tie it all together. You'll be the one to change that. We're looking for a Community Ops Coordinator to bring structure, clarity, and momentum to how our community runs. You'll be the engine that keeps our events, programs, and communications running smoothly — and the connective tissue that helps members feel informed, supported, and excited to engage. This role is perfect for someone who loves bringing order to moving parts and shaping how members experience a community. You'll sit at the intersection of operations and communication — connecting the dots between programs, thinking holistically about how we show up to members, and making the Circle Community feel more cohesive, intuitive, and high-impact every single day. What you'll be doing: Community Comms • Streamline and coordinate how we communicate with members across events and programs to reduce noise, improve clarity, and drive better engagement. • Drive participation in our monthly challenges and other key programs through segmented, targeted outreach. • Ensure all member-facing touchpoints — from emails to DMs to automated messages — are cohesive, timely, and on-brand. • Write and send our weekly digest and monthly roundup, keeping members in the loop with key resources, upcoming events, and program highlights. Ops & Systems • Own and maintain the systems behind our core programs — including events, monthly challenges, Circle Contributors in the community, and new course launches in the Circle Academy. • Schedule, coordinate, and announce all events hosted in the customer community — ensuring they are well-timed and in alignment with larger campaigns. • Provide support and troubleshoot issues related to community programs, systems, or member experience — acting as the go-to person for resolving problems and coordinating with internal teams when needed. Community Moderation & Member Experience • Partner with Community Managers to create and maintain a cohesive, welcoming member experience — from guiding new members and surfacing helpful resources, to live moderating events and ensuring they feel engaging, inclusive, and worth showing up for. • Keep the community thoughtfully organized by tagging posts, organizing content, managing our AI Agents, and ensuring top resources are easy to find and surface when members need them. • Support community moderation by managing the moderation queue, responding to member posts, and upholding our community guidelines. What you'll need to be successful: • Strong alignment with our values (find our values on our career page if you haven't read up on them yet). • You are proficient in English (spoken, written, and reading) at a CEFR Level C2 / ILR Level 5. • 3+ years experience in a community management, customer marketing, or community operations role — ideally supporting a customer-facing or product-driven community. • Experience designing and executing programs or campaigns that educate, engage, and activate customers (e.g. product education, newsletters, challenges, live events). • Excellent written communication skills — you know how to craft messages that are clear, timely, and on-brand • Comfortable using data to evaluate comms performance, spot gaps, and inform improvements. • Strong organizational and project management skills — you've run multiple initiatives at once and know how to keep things moving and on track. • A sharp eye for detail and quality, with a love for improving systems and processes to make things run smoother. • Tech-savvy and quick to learn new tools — ideally with some familiarity with modern community platforms, segmentation tools, and content management systems. • Adaptability and ease navigating ambiguity. Bonus points: • Experience working at a community-led business. • Familiarity with Circle's product and community platform. $80,000 - $85,000 USD per year The cash compensation range shown is a starting point. In addition to equity, benefits and perks, your cash compensation is subject to an annual review and increase on a once per year basis. The fun stuff • Fully remote: work from anywhere in the world! • Autonomy and trust to do your job: we care about outcomes over everything else. • Paid time away: all employees are given 35 days of PTO annually. We also offer a paid sabbatical after 5 years. • Generous U.S. benchmarked compensation and startup equity no matter where you are in the world.* • Awesome medical coverage with 100% coverage for you and your family, or medical reimbursement options where applicable!* • Parental leave for parents expanding their family, or just starting one. • Home office stipend to help you get up and running. • Learning & development stipend to help you level up your professional skills. • Annual bonus potential for roles that don't already receive variable income or commission. • Company retreats: Twice a year, the Circle team gets together for a fully paid company retreat in incredible places around the world! We've had past retreats in Colombia, Portugal, and Mexico, with more planned on the horizon. • Check out our Careers page for more. • Your role, location and unique circumstance may affect this. Diversity, Equity & Inclusion As a fully-remote international company, diversity is baked into our DNA. Here's how our CEO, Sid Yadav, frames our hiring mission: "let's find talent in underserved and under-represented corners of the world, set them up to do the best work of their lives, and in turn, change their life." To achieve this hiring mission, we offer competitive U.S. benchmarked compensation no matter where someone's located in the world, and we proactively seek candidates who expand representation of backgrounds, cultures and lived experiences in our teams. Equal Employment Opportunity Circle is an equal opportunity employer and as such, we do not discriminate on the basis of race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability, or any other characteristic protected by applicable laws. If you require any accommodations during the recruitment process, please let us know and we will work with you to meet your needs. How We Use Candidate Data At Circle, we are committed to protecting your personal information. As a job applicant, the personal data you provide to us is collected and processed in accordance with the General Data Protection Regulation (GDPR) in the EU and the California Consumer Privacy Act (CCPA). This notice outlines the types of personal information we collect, the purpose for collecting it, and your rights. Information We Collect: We collect the following categories of personal information from job applicants: • Contact information (such as name, email address, phone number) • Employment history and qualifications • Education history • References and any other information you choose to share with us during the application process Purpose of Collection: We collect this information for the following purposes: • To assess your qualifications and suitability for the position • To communicate with you during the recruitment process • To comply with legal and regulatory obligations Your Rights Under GDPR and CCPA: You have the following rights regarding your personal information: • The right to request access to the personal information we hold about you. • The right to request the deletion of your personal information, subject to certain legal exceptions. • The right to opt out of the sale of your personal information (Note: We do not sell personal information). For more information about how we handle your personal data or to exercise your rights, please refer to our full Privacy Policy. By submitting your application, you acknowledge that you have read and understood this privacy notice.