Senior Fullstack Engineer (Ruby / Python / React) at crewAI

Position OverviewBobyard is rapidly expanding, presenting numerous opportunities to innovate and enhance our infrastructure to meet increasing demand.As a Senior React Developer, you will enjoy significant autonomy in designing, developing, and refining products. In our fast-paced startup environment, you will become the foremost authority on the solutions you create. We seek exceptional engineers who not only have a clear vision for the product but are also capable of diving deep into coding to deliver outstanding results.Key ResponsibilitiesDevelop and sustain the entire product stack (React, Django, PostgreSQL).Architect and scale backend APIs and data models.Manage frontend architecture and optimize UI performance.Collaborate closely with product management, computer vision, and design teams to deliver integrated features.Deploy and maintain infrastructure across AWS, GCP, and Heroku.Identify and resolve production issues while enhancing system reliability.Quickly prototype, iterate, and refine features based on customer feedback.Desired QualitiesSelf-driven and adept at navigating a loosely structured environment.Strong product intuition — understanding the why behind features, not just the how.Solid understanding of web architecture and system design fundamentals.Ability to transition seamlessly between frontend and backend tasks.Quick learner, resourceful, and proactive in addressing unclear problems.Strong work ethic — this role demands dedication typical of startup environments.Organized and capable of managing multiple concurrent projects.This is a full-time, in-person position in San Francisco. Your ability to learn quickly and demonstrate commitment will be critical. If you can show us that you can deliver the products our customers need at the pace and quality the market demands, we want to hear from you.

Join our team at Sage Labs AI as a Senior Mobile Developer specializing in React Native. We are on a mission to revolutionize online shopping with our innovative app, GOLD, an AI-powered shopping assistant that enhances user experiences.As a pivotal member of our engineering team, you will lead the design and development of our flagship iOS app while collaborating with cross-functional teams to deliver exceptional mobile experiences. This role requires a passion for technology and a drive to deliver high-quality products.

About Air AppsAt Air Apps, we embrace bold thinking and rapid innovation. Founded by a family in 2018 in Lisbon, Portugal, our mission is to revolutionize planning with the world’s first AI-powered Personal & Entrepreneurial Resource Planner (PRP). With over 100 million downloads globally, we have expanded our presence to San Francisco while remaining self-funded and committed to pushing the limits of AI-driven solutions that genuinely enhance lives.We invite you to become a part of our journey to transform resource management and empower individuals across the globe.The RoleAs a React Engineer, your primary focus will be on crafting responsive and accessible user interfaces for our web applications. You will work collaboratively with designers, product managers, and backend engineers to convert wireframes and prototypes into beautiful, stable, and scalable front-end experiences that engage our users.This job posting serves to build our talent pool as we prepare for the official launch. We will reach out to you as soon as the position is officially posted.

About VSCO VSCO (pronounced vis–co) is an innovative platform empowering photographers with essential tools, a vibrant community, and exposure to enhance their creative and professional journeys. We foster a genuine and inspiring environment for photographers at every level, ensuring a space for creative opportunities, inspiration, and connections. Our mission is to support photographers in their endeavors, enabling them to connect with fellow creatives and businesses through a comprehensive suite of creative tools available on mobile and desktop, across our global community. We seek individuals who are motivated and take initiative to elevate our company mission. At VSCO, employees have the chance to make a significant impact, believing that collaboration leads to stronger outcomes than working in isolation. Our core values are foundational to our team culture and influence our hiring practices. Discover more about what it’s like to work at VSCO on our Careers Page. About The Role If you are passionate about React Native development and eager to be part of a dynamic team of creators, we invite you to apply for this role and assist us in empowering creators globally. At VSCO, you will collaborate with talented individuals who share your enthusiasm for innovation and creativity. We are constructing a comprehensive ecosystem of tools for photographers, enhancing our existing offerings while also creating new tools and services. This pivotal role will help define and advance our vision, shaping how our users create, connect, and earn. Join us in influencing the future of mobile, desktop, and web technologies, making a meaningful impact on the global creative community. As a Staff Engineer, you are fundamentally a technologist. You'll engage directly with the team in coding, solving complex problems, and staying updated with the latest technologies. However, your influence extends beyond individual contributions. You will serve as a technical leader, guiding the team through intricate challenges, advocating for best practices, and anticipating future developments to keep the team ahead of the curve. You will consider scalability, long-term maintainability, and future features even while the team is focused on current deliverables. You will mentor engineers, elevate quality standards, and enable the success of others. The Day to Day Lead the development of high-quality, scalable React Native applications while promoting rigorous testing, robust CI practices, and high standards throughout the codebase. Actively engage in coding and problem-solving alongside the team. Mentor junior engineers and foster a collaborative learning environment. Stay abreast of industry trends and best practices.

About Us:At Scribd Inc. (pronounced “scribbed”), we are dedicated to igniting human curiosity. Join our innovative team as we craft a universe of stories and knowledge, democratizing the exchange of ideas and empowering collective expertise through our diverse products: Everand, Scribd, Slideshare, and Fable.This job posting represents an open and approved position within our organization, reflecting our commitment to growth and excellence.We cultivate a workplace culture where authenticity and boldness thrive, where we engage in robust discussions and embrace unexpected challenges, and where every employee is empowered to take initiative in prioritizing customer satisfaction.Our flexible work policy, Scribd Flex, allows employees to customize their work environment in collaboration with their managers, promoting a balance between individual flexibility and community connections. We emphasize the importance of intentional in-person interactions to foster collaboration, culture, and connection. Therefore, occasional in-person attendance is required for all Scribd Inc. employees, regardless of their location.What do we seek in our new team members? We value “GRIT”—the combination of passion and perseverance towards long-term goals. At Scribd Inc., we believe in the transformative potential of this mindset and encourage our employees to embody a GRIT-ty approach in their work. In practical terms, GRIT stands for setting and achieving strong Goals, delivering tangible Results, contributing Innovative ideas, and positively influencing the broader Team through collaboration and a positive attitude.About the Role and TeamEnhance the core experience for over 10M daily readers. Join the team responsible for Scribd's primary reading platform and significantly influence how millions of users engage with our extensive collection of over 300,000 documents.Innovate at the crossroads of product and AI. Collaborate closely with Product, Design, and AI/ML teams to rapidly develop and implement experiments that boost engagement and comprehension on the reading interface.Develop new creation experiences from inception to launch. Leverage your skills to conceptualize and build innovative features that enhance user creativity and interaction.

About Our Company:At Scribd Inc. (pronounced “scribbed”), we are driven by a mission to ignite human curiosity. As part of our innovative team, you will help shape a world filled with stories and knowledge, democratizing the exchange of ideas and empowering collective expertise through our flagship products: Everand, Scribd, Slideshare, and Fable.This job posting reflects a currently open position within our organization.We cultivate a culture where our employees can be authentic and courageous; where discussions are encouraged, and commitments are made as we embrace the unexpected; and where every team member is empowered to take initiative while keeping customer satisfaction at the forefront.In terms of workplace structure, we value a balance between personal flexibility and community engagement. Through our flexible work benefit, Scribd Flex, employees can collaborate with their managers to determine a working style that aligns with their individual needs. A vital aspect of Scribd Flex is ensuring intentional in-person interactions to foster collaboration, culture, and connection. Therefore, occasional in-person attendance is required for all Scribd employees, regardless of their location.What do we seek in our new team members? We prioritize hiring individuals who embody “GRIT” – a blend of passion and perseverance towards achieving long-term goals. At Scribd Inc., we recognize the transformative potential this mindset unlocks, and we encourage all our employees to adopt a GRIT-driven approach in their work. In practical terms, GRIT is also an acronym representing the standards we uphold: we seek candidates who demonstrate the ability to set and accomplish Goals, achieve Results, contribute Innovative ideas, and positively impact the broader Team through collaboration and attitude.About the Discovery Applications TeamThe Discovery Applications Team is at the forefront of Scribd’s Machine Learning and Discovery Engineering Division. This dedicated team is responsible for crafting customer-facing web experiences that enhance our cutting-edge search, recommendations, and generative AI features. As a full-stack team, we own the complete discovery experience across Scribd and Everand, transforming machine learning capabilities into intuitive, user-friendly features.By joining this team, you will play a pivotal role in delivering user value from our groundbreaking machine learning innovations, creating significant impacts through your contributions.

Join Us at Air AppsAt Air Apps, we are driven by the vision to think bigger and act faster. As a family-founded organization, our mission is to revolutionize personal and entrepreneurial planning through our pioneering AI-powered Personal & Entrepreneurial Resource Planner (PRP). We seek your passion and ambition to help us transform the way individuals plan, work, and live. Established in Lisbon, Portugal in 2018, and now with vibrant offices in both Lisbon and San Francisco, we have achieved over 100 million downloads globally while remaining self-funded.Our commitment to long-term innovation challenges the status quo daily, enabling us to push the boundaries of AI-driven solutions that truly make a positive impact. Here, you will be a creative catalyst, shaping products that empower people worldwide.Embark with us on this exciting journey to redefine resource management and transform lives along the way.Position OverviewWe are in search of a React Native Engineer to become an integral part of our team and assist in the development and maintenance of our dynamic mobile applications. Collaborating closely with designers, product managers, and fellow developers, you will craft high-performance applications that captivate our users. Your expertise will be vital in fostering innovation and ensuring that our apps adhere to the highest standards of quality and usability.Please be advised that this posting aims to enrich our talent pool as we prepare to formally launch the position. We will reach out to you as soon as the official job is posted.

Join Point as a Senior Mobile Engineer and be part of a pioneering team dedicated to creating a modern and aspirational banking experience. Our mission is to enhance the everyday debit card by integrating rewarding benefits and features that elevate financial transactions.To learn more about our dynamic team and vibrant culture, please explore here.

Join our dynamic team at Cloudflare as a Principal Consultant for Cloudforce One REACT. In this pivotal role, you will lead innovative cloud-based solutions, providing strategic guidance to clients while leveraging your expertise in React development. Your ability to communicate effectively and manage projects will be crucial in driving success and delivering exceptional results.

Compensation: Competitive base salary with significant equity options.Benefits: Comprehensive health and dental insurance, gym reimbursement, and daily team lunches.At Julius, we are pioneering an applied AI lab focused on developing coding agents. Our mission is to empower one billion individuals to become software creators, starting with innovative data science and analysis applications.Currently, our team has successfully executed 1 million lines of code every 36 hours, catering to over 1 million users while generating more than 3 million data visualizations.Our compact technical team comprises professionals with backgrounds from top companies such as Uber, Microsoft, and Facebook. We are generating revenue and are proudly supported by prominent investors, including AI Grant and founders from Vercel, Notion, Perplexity, Palantir, Replit, Zapier, Intercom, Dropbox, as well as researchers from OpenAI and Google DeepMind.Creating intuitive and high-performance user interfaces is essential for ensuring that Julius remains user-friendly for our vast audience. Our interface encompasses various components such as tool utilization, multi-step reasoning, code generation, execution, file management, and more. In this role, you will have the opportunity to define and build experiences across these elements as we expand toward our future objectives.

About DEUNA At DEUNA, we are at the forefront of transforming global commerce with our innovative ATHIA platform. This AI-driven orchestration and payments solution empowers large enterprises to enhance approval rates, minimize costs, and generate new revenue streams. Our team, which built the fastest-growing Commerce OS in Latin America, has developed ATHIA to seamlessly integrate payment intelligence, optimize checkouts, and facilitate data orchestration within a single, powerful framework.With extensive connections to over 300 payment service providers (PSPs) and alternative payment methods, we currently support more than 20% of Mexico’s digital economy through our platform, simplifying global payments via a unified integration and centralized reconciliation.As we expand into the U.S. market to address the pressing needs of large retailers, marketplaces, airlines, and quick-service restaurants, we invite you to join us in reshaping the future of payment solutions! We are on the lookout for a talented and experienced Senior Frontend Engineer to become a vital part of our dynamic team. In this role, you will be instrumental in the design, development, and deployment of cutting-edge frontend applications. The ideal candidate will possess a robust background in frontend technologies, preferably with leadership experience, along with a solid understanding of software development best practices.

OverviewIn today's fast-evolving technological landscape, the educational experiences of both students and teachers are undergoing significant transformations. At Kira Learning, we are committed to leveraging innovative AI technologies to make top-tier teaching and learning accessible to all. As a Senior Software Engineer at Kira, you will spearhead groundbreaking projects, shaping products that enhance educational experiences globally.Kira is a dynamic startup backed by prestigious Venture Capital partners such as New Enterprise Associates (NEA), Andrew Ng’s AI Fund, and Primavera.This full-time role requires flexibility in work hours and availability outside of typical business times. Our offices are located in San Francisco, CA, and New York City, NY, and we expect employees to work in-person four days a week from one of these locations.

About WorkWhileAt WorkWhile, we are dedicated to empowering workers to earn a better living and enhance their quality of life. With over 80 million Americans relying on hourly jobs that often come with unpredictable schedules, low wages, and limited benefits, financial stability is often out of reach.We are transforming the landscape of frontline work by fostering a more flexible and efficient labor market. Utilizing advanced AI technology, the WorkWhile platform enables businesses to swiftly access high-quality talent. Our workers enjoy same-day pay, complimentary telehealth services, opportunities for skill enhancement, and the freedom to select shifts that align with their expertise and schedules.With an ambitious goal to align incentives and rectify inefficiencies within the labor market, we are on a mission to disrupt the $650 billion staffing and recruiting industry. Supported by Khosla Ventures and recognized on the Inc. 5000 for 10x growth, WorkWhile is redefining the future of work.

Join Our Team as a Senior Frontend Software EngineerAt Daydream, we are dedicated to revolutionizing the dental industry by ensuring that dentists get compensated for their hard work. Operating within a $165 billion market, our innovative platform streamlines the tedious processes of insurance verification, claim submissions, denial appeals, patient billing, and maintaining accurate financial records. Unfortunately, the complexity of these tasks can lead to significant revenue losses for dentists, often totaling between 10-20%.This inefficiency contributes to many of the frustrations patients face in the American healthcare system, including its high costs and confusing procedures. Dentists want to focus on what they do best: treating patients and making them smile. Our mission is to enhance revenue cycle management through automation, fostering greater financial transparency for patients and providers alike, while supporting small business dentists across the nation.The RoleWe are on the lookout for a skilled Senior Frontend Software Engineer to join our dynamic team.

About the RoleAt Descript, we are revolutionizing the way audio and video content is created and edited, ensuring that the process is swift, user-friendly, and accessible to everyone. Our innovative media editor leverages real-time collaboration, exceptional user experience, and advanced AI technology. This is the future of media!The Builder Experience (BIX) team is a pivotal part of Descript's platform, laying the groundwork for every product engineer. We manage the design system, essential UI frameworks, client performance, state management patterns, continuous integration, as well as the libraries and tools that maintain our codebase's health and enhance engineer productivity. If it involves the client shell, rendering pipeline, or cross-cutting frontend infrastructure, it's within our domain.We are seeking a passionate engineer, proficient in modern React, who thrives in frontend platform development and is motivated by the goal of enhancing the efficiency of our entire engineering organization. You will engage in hands-on systems work—such as performance tuning, dependency management, and the evolution of our design system—while also adopting a coaching and enablement approach to assist product teams in implementing improvements and elevating their skills.

Join Us as a Senior JavaScript UI Engineer (React or Angular) - $160K-$180K.HIGHLIGHTS:* Be a key player in crafting a new, frontend-centric, feature-rich Software as a Service (SaaS) product.* Work on a distinctive, powerful suite of applications designed for web design and development.* Join a well-funded company (Series A funding of $15 million) that’s making waves in the industry.* Become part of a growing team with esteemed Fortune 500 clients including GE, Visa, and Marriott.* Located in SOMA, San Francisco, 94107, with convenient access to BART and Caltrain, plus a flexible work schedule..THE ROLE:* As our most senior frontend developer, you will report directly to the CTO.* Utilize cutting-edge technologies: React, Redux, Apollo, ES6/ESNext, Cypress for browser testing, GraphQL for API interaction, and Flow for type safety.* Develop complex frontend features while enhancing performance and speed using Chrome Dev Tools..IDEAL CANDIDATE PROFILE:* 10+ years of JavaScript experience required.* Proficiency in MVC frameworks such as AngularJS and ReactJS.* Proven track record in building complex public-facing frontends.* A passion for learning the latest tools and methodologies.

Join us at datacurve as we revolutionize the developer experience through a gamified platform that inspires tens of thousands of coders to engage in thrilling software engineering challenges – all while advancing the frontiers of large language models (LLMs)!As a Senior Frontend Engineer, you will be a vital member of a dynamic and enthusiastic team committed to tackling complex technical challenges, crafting captivating gamification experiences, and laying the groundwork for a collaborative global developer community.Your ResponsibilitiesCreate and develop user-friendly, visually appealing, and engaging interfaces that attract developers.Work closely with product managers, designers, and backend engineers to create integrated gamified experiences and interactive coding challenges.Design scalable frontend architectures, ensuring maintainability, performance, and reliability as our platform expands.Promote frontend best practices, enhance code quality, and provide mentorship within the engineering team.Engage in continuous experimentation, iteration, and optimization of user experiences driven by analytics and user feedback.Your QualificationsOver 3 years of experience in developing scalable, high-performance frontend applications utilizing React and TypeScript.Expertise in crafting responsive, attractive user interfaces using Tailwind CSS.In-depth knowledge of data fetching, state management, and API integration using GraphQL.Demonstrated ability to design maintainable, modular frontend codebases and implement best practices.Experience in developing and maintaining reusable component libraries and frontend design systems.Familiarity with frontend testing frameworks and best practices (e.g., Vitest, React Testing Library, MSW).A strong passion for creating delightful user experiences and meticulous attention to detail in UI/UX design.A proactive approach to iterating quickly based on user feedback and analytical insights.Preferred QualificationsExperience with Relay for efficient GraphQL data management and client-side caching.Familiarity with frontend code generation tools and workflows (e.g., Plop).Understanding of modern CI/CD practices, including automated testing, linting, and deployment pipelines.

At Sift, we're revolutionizing the way modern machines are constructed, tested, and managed. Our innovative platform provides engineers with real-time insights into high-frequency telemetry, effectively removing bottlenecks and facilitating quicker, more reliable development processes.Sift originated from our work at SpaceX, where we tackled projects like Dragon, Falcon, Starlink, and Starship. The need for scalable telemetry, efficient debugging of flight systems, and guaranteed mission reliability pushed us to create new infrastructure. Founded by a team of experts from SpaceX, Google, and Palantir, Sift is designed for mission-critical applications where accuracy and scalability are paramount.As an early engineer at Sift, your role extends beyond merely coding; you will define the architecture, shape the product, and influence the company's culture focused on addressing significant engineering challenges. If you seek complex technical problems and the chance to build foundational systems for sophisticated machinery from the ground up, we want to connect with you.

Who We Are?Postman stands as the premier API platform utilized by over 45 million developers and more than 500,000 organizations, including 98% of the Fortune 500. Our mission is to empower developers and professionals worldwide to construct an API-first environment by simplifying every phase of the API lifecycle and enhancing collaboration—allowing users to develop superior APIs, more efficiently.Headquartered in San Francisco, Postman boasts offices in Boston, New York, Austin, Tokyo, London, and Bangalore, our birthplace. We're a privately held company backed by notable investors including Battery Ventures, BOND, Coatue, CRV, Insight Partners, and Nexus Venture Partners. Discover more at postman.com or engage with us on X via @getpostman.P.S: We highly recommend reading The "API-First World" graphic novel to grasp the broader vision and mission of Postman.About the RoleWe are on the lookout for an experienced Senior Developer Advocate to join our Developer Relations team, dedicated to assisting developers globally in crafting superior APIs at an accelerated pace. As a trusted technical spokesperson for Postman, you will create engaging content, foster community, and advocate for developer needs within our product ecosystem.This is a highly visible role with significant impact. You won’t just discuss Postman; you will actively engage with APIs, AI agents, and emerging protocols such as MCP, transforming intricate workflows into accessible, inspiring content that resonates with millions of developers.What You’ll DoCreate technical content at scale: Develop tutorials, blog posts, videos, sample projects, and livestreams that illustrate API best practices using Postman and beyond.