Building the world's first 1:1 AI teacher that listens to children read out loud and helps them learn.

Ello is revolutionizing children's education through AI technology, seeking a Senior Unity Engineer to join their mission of maximizing the potential of all children. This contract position (6+ months) offers an opportunity to work on Read with Ello, an AI reading teacher that listens to children read out loud.

The role is based in São Paulo, Brazil, with a hybrid work arrangement, offering compensation between $4-8k/month depending on seniority. You'll be joining a rapidly-growing, 40-person startup at the intersection of gaming and education, working with a dedicated Unity team of 4 members.

As a Senior Unity Engineer, you'll be responsible for developing and optimizing interactive applications that bring Ello to life. The role involves creating engaging experiences for young readers while collaborating with ML, design, animation, and platform teams. The position requires strong expertise in Unity, mobile development, and a willingness to dive deeper into the systems stack for ML collaboration.

Ello is a public benefit corporation headquartered in San Francisco, with offices in São Paulo, Brazil; Nairobi, Kenya; and New York. The company boasts deep expertise in artificial intelligence, K-12 education, and child development, with team members from institutions like Stanford, Berkeley, Google, and Apple. They're backed by prestigious investors including Goodwater Capital, Homebrew, Reed Hastings, and others.

The company culture emphasizes diversity, inclusion, and collaborative problem-solving. They're looking for candidates who can teach something new, take initiative, communicate directly with empathy, and are passionate about making a real impact on child development at scale. This is an opportunity to work with cutting-edge technology while contributing to meaningful educational experiences for children worldwide.

If you're excited about combining technical expertise with educational impact, and want to be part of a team that's building the future of learning through AI, this role offers a unique opportunity to make a difference while working with advanced technology in a supportive, mission-driven environment.

Senior Unity Engineer position at Ello, developing AI-powered educational applications for children using Unity and mobile technologies.

Senior Unity Engineer (Contract)

AI education company building AI reading teacher and tutoring apps for children worldwide

Ello is an innovative AI education company on a mission to maximize the potential of all children worldwide. As a Series A startup backed by prestigious investors, they're building AI-powered educational products, starting with 'Read with Ello' - an AI reading teacher that uses speech recognition and generative AI to help children learn.

The Product Engineer (ML & Mobile) role offers a unique opportunity to work directly with the Co-founder & CTO in a small, high-performing team of less than 10 engineers. The position combines machine learning, mobile development, and product engineering to build next-generation AI tutoring apps. The ideal candidate will own features end-to-end, working with both ML pipelines and user interfaces.

Located in San Francisco, Ello emphasizes face-to-face collaboration and maintains a strong engineering culture of excellence. The company has been recognized on Fortune's "Change the World" and Time's 2024 Best Inventions lists. With offices in São Paulo, Nairobi, and New York, Ello's team of 45 people brings together expertise from institutions like Stanford, Berkeley, Google, and Apple.

The role offers competitive compensation ($140,000-$210,000 plus equity) and the chance to make a real impact on global education. The ideal candidate will combine strong technical skills with product thinking, being able to work across the stack from ML pipelines to mobile interfaces using technologies like Python, React, Flutter, and various ML tools.

Ello values diversity and inclusion, viewing it as both a moral imperative and competitive advantage. They're looking for candidates who take initiative, communicate directly, and want to build meaningful relationships while creating products they're proud of. This is an opportunity to join a mission-driven company at the intersection of AI and education, working to revolutionize how children learn worldwide.

Product Engineer role focusing on ML and mobile development for AI-powered educational products at Ello

Product Engineer (ML & Mobile)

Building the world's first 1:1 AI teacher that helps children learn through AI-powered reading instruction.

Ello is revolutionizing children's education through AI technology. Their flagship product, Read with Ello, is an AI reading teacher that listens to children read aloud, providing real-time assistance and generating engaging stories. As a Product Engineer on the New Products team, you'll work directly with the CTO in a small, high-impact team of less than 10 people.

The role involves end-to-end ownership of learning activities within Ello's next-generation AI tutoring apps. You'll bridge product development and engineering, sometimes acting as your own product manager. Key responsibilities include building agent-based AI pipelines, developing front-end components for mobile/web platforms, and ensuring seamless integration of ML models.

Ello is a Series A startup backed by prestigious investors including Goodwater Capital, Homebrew, and Reed Hastings. With offices in San Francisco, São Paulo, Nairobi, and New York, they're on a mission to maximize every child's potential through AI-powered education. The company values diversity, emphasizes face-to-face collaboration, and offers a culture that balances hard work with meaningful impact.

The ideal candidate should have strong technical foundations across backend, ML, and mobile frontend, with experience in Flutter, native Android, or iOS development. You'll need familiarity with GenAI tools, excellent debugging skills, and a keen eye for design details. This is an opportunity to shape the future of education technology while working with cutting-edge AI in a collaborative, mission-driven environment.

Build AI-powered educational experiences as a Product Engineer at Ello, developing ML and mobile solutions for the world's first 1:1 AI teacher.

AI education company building AI reading teacher and tutoring solutions for children worldwide.

Ello is a Series A startup revolutionizing children's education through AI technology. Their first product, Read with Ello, is an AI reading teacher that listens to children read aloud and provides interactive assistance. The company is now expanding to build a complete AI teaching solution for children worldwide.

As a Design Engineer (Mobile), you'll work directly with the Co-founder & CTO in a small team of less than 10 people, focusing on creating seamless front-end experiences for mobile platforms. The role bridges design and engineering, requiring both technical expertise and design sensibility. You'll own feature development end-to-end, sometimes acting as your own product manager.

The company, headquartered in San Francisco with offices in São Paulo, Nairobi, and New York, comprises around 45 people with expertise from institutions like Stanford, Berkeley, Google, and Apple. Backed by prominent investors including Goodwater Capital, Reed Hastings, and Khosla Ventures, Ello emphasizes diversity and inclusion in their culture.

The position offers a competitive salary range of $140,000-$210,000 plus equity, with relocation assistance available. You'll be working in-person at their San Francisco office, contributing to their mission of maximizing the potential of all children through AI-powered education solutions. The role requires strong technical foundations in mobile development, particularly with Flutter or Android (Java/Kotlin), combined with UI/UX design skills.

Design Engineer role at Ello, combining mobile development and UI/UX design skills to build AI-powered educational products for children.

Design Engineer (Mobile)

Ello is a public benefit corporation on a mission to maximize the potential of all children through AI-powered education technology.

Ello is seeking a Senior or Staff Mobile Engineer to join their team in developing a groundbreaking AI tutor for children. The role involves building a new Flutter-based app where AI controls the UX to deliver an innovative learning experience. You'll work directly with the Co-founder & CTO on a small team of engineers, learning designers, and PMs.

Key responsibilities include:
- Designing and developing high-performance Flutter applications for iOS and Android
- Optimizing apps for low-power, memory-constrained devices
- Collaborating with design and animation teams
- Implementing best practices for code quality, testing, and version control

Required experience:
- 5+ years in mobile app development, with 2+ years of Flutter experience
- Proficiency in Dart and native app development (Java/Kotlin, Swift/Objective-C)
- Strong understanding of mobile app architecture and performance optimization
- Experience with backend integration, testing frameworks, and agile methodologies

Nice-to-have skills include experience with generative AI, game development, high-performance coding, and basic design skills.

Ello offers a collaborative environment, the opportunity to work with cutting-edge AI technology in education, and the chance to make a significant impact on child development globally. The company is well-funded, backed by world-class investors, and has been recognized on Fortune's "Change the World" and Time's 2024 Best Inventions lists.

Join Ello to be part of a diverse, mission-driven team working to revolutionize education with AI at this critical juncture in technology.

Senior Mobile Engineer (Flutter) at Ello, building AI-powered education apps for children in San Francisco.

Senior Mobile Engineer (Flutter)

Ello is seeking a Mobile Engineer (Flutter) to join their team in Nairobi, Kenya. The role involves developing a new app using Flutter for Ello's AI tutor for children. Key responsibilities include designing and maintaining high-performance Flutter applications, collaborating with design and animation teams, and implementing best practices for code quality and testing. The ideal candidate should have 3+ years of mobile app development experience, proficiency in Dart, and a strong understanding of mobile app architecture. This is an opportunity to work on revolutionizing education with AI, in a collaborative environment with a diverse team. Ello offers competitive salary ranges, equity, and the chance to make a significant impact on child education globally.

Ello's mission is to maximize the potential of all children through AI-powered education. Their first product, Read with Ello, is an AI reading teacher that uses speech recognition and generative AI to help children learn to read. The company is now expanding to create a complete AI teacher for all children.

The role offers:
- Collaboration with world-class experts in engineering, learning design, and product management
- Opportunity to work on cutting-edge AI applications in education
- Competitive salary and equity
- A diverse and inclusive work environment
- Chance to make a real impact on child development at scale

Required skills include Flutter development, native app development experience, proficiency in Dart, and strong problem-solving and communication skills. Nice-to-have experiences include generative AI application development, game development, and experience with product analytics.

Ello is a well-funded, series A startup with offices in San Francisco, São Paulo, Nairobi, and New York. They have been recognized on Fortune's "Change the World" and Time's 2024 Best Inventions lists.

Join Ello as a Mobile Engineer (Flutter) in Nairobi to develop AI-powered education apps for children, offering competitive salary and equity.

Ello Engineering Jobs

Building the world's first 1:1 AI teacher that listens to children read out loud and helps them learn.