Jolly Technologies
Jolly Technologies
Oferta sólo disponible en Inglés
Oferta cerrada el 05/02/2024

Senior Flutter Developer

🎯 Producto🌞 Impacto social🎓 EdTech💂 Inglés

Ever dreamed about being part of a mission driven company, that builds products tackling key issues in education? Look no further – let me introduce you to the world of Jolly Technologies!

Jolly Technologies build products that transform the teaching of Reading and Writing. Literacy is fundamental to any child's development, with their product, all children can read quickly, and access the world of information.   🚀📚" 🚀📚

Are you ready? Keep on reading! 👀

¿Qué harás?

Before we begin, let's talk about where it all starts, the magic of Jolly Phonics! 🌟 It's not just a teaching method; it's like giving kids the keys to a reading and writing wonderland. They show children the ins and outs of letter sounds, the thrill of combining them into words – making learning fun, quick and easy!

This fantastic approach has already spread its wings globally through printed materials. Now, they're on a mission – turning that success story into a digital sensation. Imagine the excitement of bringing the world of Jolly Phonics into the digital era, making learning an adventure for kids everywhere 🚀

Since their debut in September 2022, Jolly Technologies has experienced exhilarating growth, with over 2000 subscribers and 1.7k daily active users from over 150 countries. They develop digital tools that are carefully crafted to enhance the learning experience, providing interactive and engaging resources that support children in mastering reading and writing skills. Through the integration of technology into education, Jolly Technologies envisions a more inclusive and effective approach to literacy development.

Their products cater to a wide range of stakeholders, including pupils, teachers, parents, as well as governmental and non-governmental organizations (NGOs). The overarching goal is to democratize access to quality education, particularly in the realm of language acquisition, and contribute to raising literacy standards globally.

The core product for schools is Jolly Classroom, a Saas platform that enables teachers to deliver Jolly Phonics lessons to their pupils 🧑‍🏫. They have also developed Jolly Monitor, which is a system designed to make life easier by collecting and analyzing loads of info from Jolly Phonics projects in the field. Jolly Technologies has outlined an exciting journey on their roadmap:

  • Jolly Grammar: They're introducing additional years of content while staying true to the sturdy core structure they've already established.
  • Pupil Assessment System: They're in the process of building a system that empowers teachers to assess pupils and gain insights into their class performance.
  • Pupil Activities: They're morphing teaching activities into consumable content for students. This move not only amplifies the value for their existing customers but also sets the stage for the release of entirely new and exciting products. Stay tuned for some exciting launches! 🚀✨

What are they looking for? 🧐

They're on the lookout for a Senior Flutter Developer to spearhead the expansion of their core product, Jolly Classroom. With a focus on adding more years of teaching content, fun games, pupil assessments, and a host of other exciting features, this is a chance to contribute to building an even more dynamic and user-friendly educational experience. 

In their quest for the perfect fit, they’re not just seeking a senior Flutter developer; they`re on the lookout for someone with leadership and mentoring skills. This role goes beyond coding; it’s also an opportunity to guide and inspire, fostering growth within the team. 

If you're not only a skilled Flutter developer but also someone who thrives on leading and mentoring and is passionate about making a positive impact in the world of education, this opportunity is calling your name!

Tu evolución

Jolly Technologies
Tu primer día

En 1 mes

In the initial month, you will acclimate yourself to the team's dynamics and the market they engage in. As part of the onboarding process, you'll have the opportunity to visit the team at their Valencia office for a few days, gaining insights into the product dynamics.

Tus responsabilidades

  • Develop and maintain high-quality, scalable Flutter applications.

  • Ensure UI precision, theming consistency, and visual appeal across multiple platforms.

  • Integrate technologies like Riverpod, Firebase Auth, and Firestore. 

  • Implement efficient data exchange using Protobuf and gRPC.

  • Collaborate with Jolly Learning for content integration.

¿Cómo lo harás?

Jolly Technologies teams up with Jolly Learning, the fantastic folks behind the Jolly Phonics Programme based in the UK. Here's the scoop: Jolly Learning takes care of the content, and at Jolly Technologies they handle the development side of things – it's a dynamic partnership!

The team consists of four developers, and the work environment is characterized by a relaxed and trusting vibe. They operate with a unique dynamic, conducting daily stand-up meetings to plan the day, setting milestones, and establishing deadlines aligned with the school year rithm. This collaborative approach fosters effective communication and coordination within the team. They can't wait to welcome you into the mix! 

¿Cuándo trabajarás?

At Jolly Technologies, the team enjoys the sweet flexibility of working hours

The only little ask? They just ask everyone to be around during a specific time slot for some team magic—ya know, daily meetings to chat about decisions and all the good stuff!

Día laborable

Jornada completa


22 días

Jornada laboral


¿Dónde trabajarás?





The position is fully remote, but they appreciate candidates who can occasionally visit the Valencia-based office, though it's not obligatory, just preferred 😜. 

Just as heads-up: During the onboarding process and the initial weeks, they anticipate your presence on-site, and no worries - any related expenses are on the company’s tab.

¿Con quién trabajarás?

Jolly Technologies is a team of 4 developers, working across two projects. You would report to the CEO, Gilbert Jolly. Let’s get to know them: 

  • Gilbert Jolly (CEO) - Bringing over 12 years of App Development experience to the table, he has had quite the adventure! For the first 7 years, he was immersed in the world of mobile development, working with buzzing startups in the UK, Silicon Valley, and Kenya. He took the leap to start Jolly Technologies, all geared up to craft some seriously cool products inspired by the magic of Jolly Phonics. ✨
  • Luca González (Full Stack Flutter Developer)  - Luca brings four fantastic years of experience to the Jolly Technologies family, working across all areas of Jolly Classroom. Coordinating with the awesome product team in the UK, Luca has been a key player in building the heart of the product using Flutter and Kotlin.
  • Simeon Shopov (Full-Stack Kotlin/Web Developer) - Having been part of the Jolly Technologies family for more than 4 awesome years, he has been rocking it, especially when it comes to jazzing up the Jolly Monitor dashboard. Their tech superpowers include a deep dive into cool stuff like Kotlin, Spring, PostgreSQL, and Tailwind. 
  • Sangeet Khatri (Fullstack/Frontend Developer) –Sangeet Khatri is a full-stack developer these days. Before diving into that, he was the go-to freelance frontend, crafting beautiful admin interfaces, and customer-friendly web pages like nobody's business. 🚀✨

¿Qué piden?

An advanced level of English is really non-negotiable... Since the whole process (and business model 😅) is in the Shakespeare’s language. 

Getting into more technical skills they are looking for:

  • Experience developing high quality Flutter applications
  • Multi-Platform Deployment: Deployment expertise across Web, iOS, Android, Mac, and Windows platforms.
  • Skillful use of Riverpod, Firebase Auth, and Firestore.
  • Data Modeling and Communication: Experience with Protobuf for data modeling and experience with gRPC for efficient service communication.

If you want some extra points…

  • You should be comfortable creating user interfaces that exactly match designs. Proficiency with the theming system is important. An aptitude for animation is a big bonus🔝.
  • You should be competent working with data, manipulating state and propagating state through the application.
  • Previous experience working on your own Flutter project, even if it encountered challenges or didn't succeed, is highly valued. Entrepreneurial experience leading a project would be great!



  • Flutter

Estaría bien

  • Kotlin
  • Google Firebase
  • Riverpod

Suma puntos

  • Google Cloud
  • gRPC
  • Protobuf

Otras habilidades


  • Atención al detalle
  • Proactividad
  • Visión estratégica

Estaría bien

  • Trabajo en equipo
  • Comunicación verbal
  • Comunicación escrita

Suma puntos

  • Capacidad de mentorización



¿Qué ofrecen?








Presupuesto para formación
Presupuesto para coworking

What the FAQ?

The priority is finding someone already living in Spain. However, you are also eligible for this position if you are a resident of the EU or UK.

  1. There'll be an initial meeting with, Gilbert, the CEO so you can get to know each other and talk about your experience.
  2. The second phase is a pair programming with Luca (Flutter developer). Followed by an examination of a previous project
  3. A final meeting with Gilbert again :)

They understand the benefits of working remotely and they are not about to lose talent for that. However, they organize occasional face-to-face events lasting a couple of days and hope that you'll want to attend. Of course, they'll cover the cost of these trips if you are willing to join them :)

Jolly Technologies
Senior Flutter DeveloperValencia o 100% remoto
Salario50 - 70K
Oferta cerrada