Expert Flutter Consultant

Our mission at Ello is simple and urgent: Maximize the potential of every child, everywhere.

We’re building the world’s first AI teacher to close that gap: one that listens, speaks, adapts, and inspires, just like the best human educators.

Our first product, Read with Ello, is already helping tens of thousands of kids each week learn to read. It listens as they read aloud, offers support when they stumble, and generates magical, personalized stories using generative AI. It works—and kids love it.

Now, we’re scaling that success into something even bigger: a complete AI teacher for all children. We’re building a real-time learning platform that combines language, speech, and memory to power personalized, interactive education for kids worldwide. We’re moving fast: we ship weekly, test directly with kids and families, and push the boundaries of what AI can do in education.

With the resources of the world's top investors and the heart of a public benefit corporation, we’re here to revolutionize how children learn globally. Featured on TIME’s Best Inventions and Fortune’s Change the World, Ello is a small, mission-driven team taking on one of the most critical challenges of our time: to democratize education.

About the role

We’re in the process of setting up our core app architecture & establishing key design patterns that will shape & define how we build agent-driven experiences and architectures. If you or someone you know is SF-based, is an expert in all things Flutter, and is interested in working on exciting technology in a highly collaborative domain that shapes kids’ education, we’d love to speak with you!

Responsibilities

• Design, develop, and maintain high-performance Flutter applications for iOS and Android platforms.
• Debug & optimize Flutter apps for performance on very low-power, memory constrained devices.
• Collaborate with design and animation teams.
• Implement best practices for code quality, testing, and version control.
• Stay up-to-date with the latest Flutter developments, trends, and industry best practices.

Required Experience

• 5+ years of experience in mobile app development, with at least 2 years of hands-on experience with Flutter and native app development experience (Java/Kotlin, Swift/Objective-C in addition to Dart).
• Proficient in Dart programming language and its ecosystem.
• Strong understanding of mobile app architecture, design patterns, and performance optimization techniques.
• Familiarity with backend integration patterns for mobile apps.
• Knowledge of mobile app testing frameworks and automation tools.
• Experience with agile development methodologies and project management tools, version control systems, and collaborative development tools.
• Excellent problem-solving, communication, and teamwork skills.

Nice-to-have experience

• Experience building generative AI applications.
• Basic backend development experience and experience with cloud services.
• Game development experience: a track record of shipping 2D games on mobile platforms.
• Experience writing high-performance, parallelized code.
• Basic design skills: some experience using basic design tools to convey your ideas and make small asset adjustments (Figma, Photoshop, or an animation tool).
• Experience with product analytics from query to visualization.
• Experience managing efficient real-time interfaces to ML pipelines & signal processing code.

We look for candidates who

• Have something to teach us.
• Want to do work they are proud of to ship products they are proud of.
• Have an urge to make a real impact on child development at scale.
• Take initiative and full ownership of their work.
• Prefer open and direct communication grounded in empathy to beating around the bush.
• Exemplify integrity in their actions, decisions, and communication.
• Want to build meaningful relationships at work.

Here are some reasons to be a part of our team

• Immerse yourself in a collaborative environment surrounded by A+ engineers.
• Dive deep into the rapidly evolving world of AI for education.
• Experience the joy of turning your lines of code into engaging and educational experiences for children worldwide.
• Work in tandem with our machine learning and platform teams, harnessing the full power of technology to reimagine education.

About Ello

Ello is a public benefit corporation on a mission to maximize the potential of all children. We’re currently around 45 people, headquartered in San Francisco, with offices in São Paulo, Brazil; Nairobi, Kenya; and New York.

Our team has deep expertise in artificial intelligence, K-12 education, and child development across institutions such as Stanford, Berkeley, Google, Apple, and more. We were part of Y Combinator’s W20 batch and are funded by world-class investors including Goodwater Capital, Homebrew, Reed Hastings, Common Sense Growth, Ravensburger, Project A Ventures, Reach Capital, Khosla Ventures, WndrCo, Visible Ventures, and K9 Ventures.

We’re a small, collaborative team that takes each other’s voices very seriously. Because our mission is to support all children, it is critical that our team is representative of the communities we work in; we place significant emphasis on ensuring diversity in our team and inclusion in our culture.

We feel enormously privileged to be one of the few companies that has the opportunity to take a shot at truly revolutionizing education with AI at this inflection point in technology. We don’t take it for granted, so we work quite hard to turn that vision into reality with urgency. We want to create an environment in which we can all be our best selves, use our strengths to take Ello forward, and develop our own skills. We want to have fun while working hard to do impactful things that we’re proud of – and we believe it’s possible to do both.

At Ello, diversity is a moral imperative and a competitive advantage. We do not discriminate based on race, religion, skin color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. We plan and structure our interviews to assess skills and experience directly. If you need accommodations throughout the interview process, please contact recruiting@ello.com.