Our Mission:

To help preschoolers thrive by providing fun, kid-to-kid learning applications.

Blub Blub story

Once upon a time, there were 4 boys who grew up with speech problems. Today we are empowering children to speak their minds and hearts, and co-create a better tomorrow. You can read our entire story below.

“Let’s create a speech therapy tool that kids will love.” was the idea we started with. We rolled up our sleeves and got started. Field research, design, prototypes, coding, video editing, feedback. Rinse, repeat, and head back to the drawing board.

Once we had our first prototype we took it on a tour of the world. We sought feedback from thousands of therapists, teachers, parents, and kids, visiting them in their clinics, schools, and homes all the way from Slovenia to San Francisco. We exhibited at IALP 2016, ATAAC 2017, and ASHA CONVENTION 2017, all just to get invaluable feedback.

We followed our calling and right after we published the first version, our inboxes were flooded with thank-you emails and testimonials, describing cases of kids with speech delays, apraxia, Down syndrome, autism, and more. We realized we have the power to help kids come out of their shells, make noises, syllables, words, and sentences! We obviously have a product that can boost any child’s confidence, speech, and intellectual potential. We have changed the lives of many kids and their parents and that’s why our team is growing, expanding, and constantly seeking to tackle new educational challenges.

1 in 4 kids needs help with speech and languagesome parents need to wait up to 2 years for an available therapist to get their child assessed by a professional. 2 years of a child’s life is an absolute eternity in lost cognitive and social development. We are not sure where this journey is going to take us, but we are sure we’ll be helping more kids tomorrow than we did yesterday. You can contact us at hi@blubblub.org

Our founders

Jernej Fuzir

CEO

Mitja Mavsar

CIO

Dal Rupnik

CTO

Open positions

UI designer

Ljubljana, Slovenia

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We’re looking for a UI designer who would join us to work on our Speech Blubs app (speechblubs.com), which has already helped over 4,000,000 kids from all around the world! Due to this fast pace and constant growth, we’re always on the lookout for new talents who would help us make an impact.

We help kids aged 1-5 develop their speech and primary language through approved therapeutic techniques such as video-modelling and gamification while using different technological approaches such as AI, facial recognition, voice activation and even personalization for each user.

Technical skills we’re looking for:

  • Expertise in design software (Figma, Sketch, Principle, Adobe CC)
  • Great understanding of UI/UX
  • Fluent in English (written and spoken)
  • Independently developing ideas

Personal traits we’re looking for:

  • Out of the box thinking and creative mindset
  • The problem-solving mindset with attention to details
  • Good communication skills and agility
  • Understands that great design can be measured
  • Designing for real impact, not just aesthetics

What brings extra points:

  • Do you have experience with animation, ads for apps etc.?
  • Do you respect user and customer feedback?
  • Do you enjoy design workshops?
  • Are you deadline-driven?
  • Do you see yourself inside a young, open-minded and fast-growing team?

What do we offer:

  • Full-time contract with 6-month probationary period
  • Young, agile and ambitious team with the vision of making an impact
  • Structured pay raise plan based on personal bi-annual and annual goals 
  • Annual bonus and stock option
  • Personal mentorship, opportunities to visit conferences, take online technical courses and participate in internal development workshops
  • Flexible working hours and different home office / office combinations
  • All quality work equipment and software provided (we use Apple devices)
  • Modern open office space in the centre of Ljubljana with a nice terrace overseeing the city life
  • 24/7/365 access to fitness, saunas and swimming pool in Intercontinental Ljubljana (which is 50m from the office)

More about Blub Blub

Blub Blub Inc. creates high-quality smart screen time for children through our flagship Speech Blubs app, which was released in 2017 and is now the #1 speech and language app and #5 top-grossing app for children in the U.S.A. The app boosts young children’s comprehension and extends their vocabulary, whilst improving their pronunciation, attention, and even their emotional regulation.

We intend to become a leading player in the early childhood education sector, with the offering of products that will help our users from saying the first words to having all the skills necessary to have a headstart in school.

We are a culture driven team that includes designers, marketers, growth experts, UX experts, data analysts, engineers, marketers, content creators, early education experts and psychologists. We are user- and customer-centric, data-informed, impact-driven, and revenue-oriented. 

We have modern open space offices in Ljubljana (Slovenia), but work globally with experts, therapists, modelling agencies, and video production partners from Florida, London, Madrid, Johannesburg, Zagreb, …

If you want to test our app, let us know and we will be happy to send you a promo code!

Android Engineer

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We’re looking for an Android Engineer, who would join us and work on our Speech Blubs app (speechblubs.com), which has already helped over 4,000,000 kids from all around the world!

We help kids aged 1-5 develop their speech and primary language through approved therapeutic techniques, while using different technological approaches such as video-modelling, AI, facial recognition, voice activation and even personalization for each user.

Responsibilities:

  • Develop features in an Agile team.
  • Constantly optimizing and improving the current codebase.
  • Cooperate closely with designers, product owners and the iOS team.
  • Learn and adopt new technologies as soon as they are released.

Our stack:

  • We support Android 5.0 and up.
  • We use Kotlin with some Java.
  • We use REST APIs and Realm database.
  • We use Firebase for A/B tests and crash reporting.

What do we expect:

  • Excellent programming skills in Java and Kotlin.
  • Experience with various data architectures and paradigms.
  • Experience fixing crashes and from stack tracing tools.
  • At least 1-2 years of experience in software engineering.
  • Knowledge of Play Store and app submission processes.
  • Experience with version control systems (Git).
  • Fluency in English language (written and spoken).

What brings extra points:

  • Experience developing apps for children.
  • Experience developing apps with a subscription business model.
  • Experience with A/B testing services.
  • Experience with analytics services.
  • Experience with UI and unit testing.
  • Contribution to open source projects.
  • Knowledge of agile development workflows.

What do we offer:

  • Full-time contract with 6-month probationary period
  • Young, agile and ambitious team with the vision of making an impact
  • Structured pay raise plan based on personal bi-annual and annual goals
  • Personal mentorship, opportunities to visit conferences, take online technical courses and participate in internal development workshops
  • Flexible working hours and different home office / office combinations
  • All work equipment & open modern office space in the centre of Ljubljana

More about Blub Blub

Blub Blub Inc. creates high-quality smart screen time for children through our flagship Speech Blubs app, which was released in 2017 and is now the #1 speech and language app and #5 top-grossing app for children in the U.S.A. The app boosts young children’s comprehension and extends their vocabulary, whilst improving their pronunciation, attention, and even their emotional regulation.

We intend to become a leading player in early childhood education sector, with the offering of products that will help our users from saying the first words to having all the skills necessary to have a headstart in school.

Our team includes designers, marketers, growth experts, UX experts, data analysts, engineers, marketers, content creators, early education experts and psychologists. We are user- and customer-centric, data-informed, impact driven, and revenue-oriented. 

We have offices in Ljubljana (Slovenia), but work globally with experts, therapists, modeling agencies, and video production partners from Florida, London, Madrid, Johannesburg, Zagreb, …

If you want to test our app, let us know and we will be happy to send you a promo code!

Data analyst

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Analytics starts with a question! Can you tell the story behind the data? Are you comfortable with data and analytics? Are you a data analyst, data scientist or aspire to become one? In Blub Blub We are looking for a passionate Data Analyst (junior or mid) who would join us and work on our Speech Blubs app (speechblubs.com), which has already helped over 4,000,000 kids from all around the world!

We help kids aged 1-5 develop their speech and primary language through approved therapeutic techniques, while using different technological approaches such as video-modelling, AI, facial recognition, voice activation and even personalization for each user.

You would help us make sense of data to deliver an even better product. You can enjoy being autonomous and independent in your work, conceptualize and suggest findings on your own. You might be making your first practical steps in data science with us solving real world problems.

Your responsibilities: 

  • Your day will start with an overview of the company’s KPI’s and determine the course of action.     
  • Your main responsibility will be the setup of AB tests to support product development. With the product team you will prepare KPI’s, set up the experiments, monitor and analyze experiment results with the goal to provide insight for product development. 
  • It is about measuring thus the maintenance and setup of analytical events as a key part of the job. Reliable and efficient tracking will allow you to answer all your analytical questions. 
  • Data is not always readily available in the shape you need it to be. Combining shaping and presenting data will be one of your responsibilities. 
  • As a data analyst you will be working with other departments on a daily basis providing help and insight in data relevant questions. 

What we are looking for: 

  • You have the necessary statistical skills. The words, statistical significance, standard error, funnel, retention are part of your vocabulary. 
  • Excel is your best friend. You can solve most of your data queries in excel. 
  • You have experience in analytical and/or BI tools like: GA, Mixpanel, Amplitude, Metabase, PowerBI, Tableau…

Bonus points:

  • Knowledge of SQL, MongoDB is a plus.
  • Experience in Python, R, JavaScript or any other programming language that deals with data is a plus. 

You have: 

  • Passion for data in all shapes and sizes. 
  • Good communication skills to share and present your findings to key stakeholders in English. 
  • A “make it happen” mentality and are not afraid to tackle new challenges.
  • The ability to work in a team or alone

What do we offer:

  • Full-time contract with 6-month probationary period 
  • Young, agile and ambitious team with the vision of making an impact
  • Structured pay raise plan based on personal bi-annual and annual goals
  • Personal mentorship, opportunities to visit conferences, take online technical courses and participate in internal development workshops
  • Flexible working hours and different home office / office combinations
  • All work equipment & open modern office space in the centre of Ljubljana

More about Blub Blub

Blub Blub Inc. creates high-quality smart screen time for children through our flagship Speech Blubs app, which was released in 2017 and is now the #1 speech and language app and #5 top-grossing app for children in the U.S.A. The app boosts young children’s comprehension and extends their vocabulary, whilst improving their pronunciation, attention, and even their emotional regulation.

We intend to become a leading player in early childhood education sector, with the offering of products that will help our users from saying the first words to having all the skills necessary to have a headstart in school.

Our team includes designers, marketers, growth experts, UX experts, data analysts, engineers, marketers, content creators, early education experts and psychologists. We are user- and customer-centric, data-informed, impact driven, and revenue-oriented. 

We have offices in Ljubljana (Slovenia), but work globally with experts, therapists, modeling agencies, and video production partners from Florida, London, Madrid, Johannesburg, Zagreb, …

If you want to test our app, let us know and we will be happy to send you a promo code! 

ENGINEERING

Frontend Javascript Engineer

Ljubljana, Remote - SLO

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We’re looking for a frontend JavaScript engineer, who would join us and work on our Speech Blubs app (speechblubs.com), which has already helped over 4,000,000 kids from all around the world!

We help kids aged 1-5 develop their speech and primary language through approved therapeutic techniques, while using different technological approaches such as video-modelling, AI, facial recognition, voice activation and even personalization for each user.

Responsibilities:

  • Develop features in an Agile team.
  • Constantly optimizing and improving the current codebase.
  • Cooperate closely with designers, product owners and other engineering teams.
  • Learn and adopt new technologies as soon as they are released.

Our stack:

  • We use JavaScript ES6 wherever possible.
  • We use Vue/Nuxt.js to build our web apps.
  • We use REST API to connect our NodeJS backend.
  • We use WordPress as CMS for our blog and landing pages.
  • For infrastructure we use Heroku, DigitalOcean and AWS.

What do we expect:

  • Excellent programming skills in JavaScript.
  • Experience with various data architectures and paradigms.
  • At least 1-2 years of experience in software engineering.
  • Knowledge of Git, Heroku and similar development tools.
  • Fluency in English language (written and spoken).

What brings extra points:

  • Experience with Vue/Nuxt.js.
  • Experience with WordPress themes and plugins.
  • Experience developing frontend web apps hosted on Heroku and/or AWS.
  • Experience developing responsive web apps.
  • Experience with analytics services.
  • Experience with unit testing.
  • Contribution to open source projects.
  • Knowledge of agile development workflows.

What do we offer:

  • Full-time contract with 6-month probationary period
  • Young, agile and ambitious team with the vision of making an impact
  • Structured pay raise plan based on personal bi-annual and annual goals
  • Personal mentorship, opportunities to visit conferences, take online technical courses and participate in internal development workshops
  • Flexible working hours and different home office / office combinations
  • All work equipment & open modern office space in the centre of Ljubljana

About Blub Blub

Blub Blub Inc. creates high-quality smart screen time for children through our flagship Speech Blubs app, which was released in 2017 and is now the #1 speech and language app and #5 top-grossing app for children in the U.S.A. The app boosts young children’s comprehension and extends their vocabulary, whilst improving their pronunciation, attention, and even their emotional regulation.

We intend to become a leading player in early childhood education sector, with the offering of products that will help our users from saying the first words to having all the skills necessary to have a headstart in school.

Our team includes designers, marketers, growth experts, UX experts, data analysts, engineers, marketers, content creators, early education experts and psychologists. We are user- and customer-centric, data-informed, impact driven, and revenue-oriented. 

We have offices in Ljubljana (Slovenia), but work globally with experts, therapists, modeling agencies, and video production partners from Florida, London, Madrid, Johannesburg, Zagreb, …

If you want to test our app, let us know and we will be happy to send you a promo code! 

ENGINEERING

Lead JavaScript Engineer

Ljubljana, Remote - SLO

Read more

We’re looking for a Lead JavaScript engineer, who would join us and work on our Speech Blubs app (speechblubs.com), which has already helped over 4,000,000 kids from all around the world!

We help kids aged 1-5 develop their speech and primary language through approved therapeutic techniques, supported by machine learning algorithms, based on large scale data sets. That gives us the ability to personalize the product for each user.

Responsibilities:

  • Lead a team of engineers and help mentoring their careers.
  • Develop backend features on NodeJS in a team of 3+ engineers.
  • Constantly optimizing and improving the current codebase.
  • Cooperate closely with designers, product owners and Android and iOS teams.
  • Learn and adopt new technologies as soon as they are released.

Our stack:

  • We use NodeJS and MongoDB for our backend services.
  • We use JavaScript ES6 wherever possible.
  • We provide REST API, services and queues for our mobile apps.
  • We use Nuxt/Vue to build our frontend web apps.
  • For infrastructure we use Heroku, DigitalOcean and AWS.

What do we expect:

  • Excellent programming skills in JavaScript.
  • Experience with various data architectures and paradigms.
  • At least 3-4 years of experience in software engineering.
  • Expert knowledge of Git, Heroku and similar development tools.
  • Fluency in English language (written and spoken).

What brings extra points:

  • Experience developing services hosted on Heroku and/or AWS.
  • Experience developing scalable backend systems.
  • Experience developing responsive web apps.
  • Experience with analytics services.
  • Experience with unit testing.
  • Contribution to open source projects.
  • Knowledge of agile development workflows.

What do we offer:

  • Full-time contract with 6-month probationary period
  • Young, agile and ambitious team with the vision of making an impact
  • Structured pay raise plan based on personal bi-annual and annual goals
  • Personal mentorship, opportunities to visit conferences, take online technical courses and participate in internal development workshops
  • Flexible working hours and different home office / office combinations
  • All work equipment & open modern office space in the centre of Ljubljana

If you meet the above requirements and would like to join us, please send your application in English or Slovenian to jobs@blubblub.org.

More about Blub Blub

Blub Blub Inc. creates high-quality smart screen time for children through our flagship Speech Blubs app, which was released in 2017 and is now the #1 speech and language app and #5 top-grossing app for children in the U.S.A. The app boosts young children’s comprehension and extends their vocabulary, whilst improving their pronunciation, attention, and even their emotional regulation.

We intend to become a leading player in early childhood education sector, with the offering of products that will help our users from saying the first words to having all the skills necessary to have a headstart in school.

Our team includes designers, marketers, growth experts, UX experts, data analysts, engineers, marketers, content creators, early education experts and psychologists. We are user- and customer-centric, data-informed, impact driven, and revenue-oriented. 

We have offices in Ljubljana (Slovenia), but work globally with experts, therapists, modeling agencies, and video production partners from Florida, London, Madrid, Johannesburg, Zagreb, …

If you want to test our app, let us know and we will be happy to send you a promo code! 

ENGINEERING

iOS Engineer

Ljubljana, Remote - SLO

Read more

We’re looking for an iOS Engineer, who would join us and work on our Speech Blubs app (speechblubs.com), which has already helped over 4,000,000 kids from all around the world!

We help kids aged 1-5 develop their speech and primary language through approved therapeutic techniques, while using different technological approaches such as video-modelling, AI, facial recognition, voice activation and even personalization for each user.

Responsibilities:

  • Develop features in an Agile team.
  • Constantly optimizing and improving the current codebase.
  • Cooperate closely with designers, product owners and the Android team.
  • Learn and adopt new technologies as soon as they are released.

Our stack:

  • We support the latest two iOS releases (13 and up).
  • We always use the latest Swift (5.4 currently).
  • We use REST APIs and Realm database.
  • We use Fastlane to deploy and Swift Package Manager.

What do we expect:

  • Excellent programming skills in Swift.
  • At least 1-2 years of experience in software engineering.
  • Experience fixing crashes and from stack tracing tools.
  • Knowledge of App Store and app submission processes.
  • Experience with version control systems (Git).
  • Fluency in English language (written and spoken).

What brings extra points:

  • Experience developing apps for children.
  • Experience with SwiftUI and/or Combine.
  • Experience with CreateML and CoreML and machine learning techniques.
  • Experience with augmented reality (ARKit), SceneKit, SpriteKit frameworks.
  • Experience developing apps with StoreKit using a subscription business model.
  • Contribution to open source projects.

What do we offer:

  • Full-time contract with 6-month probationary period
  • Young, agile and ambitious team with the vision of making an impact
  • Structured pay raise plan based on personal bi-annual and annual goals
  • Personal mentorship, opportunities to visit conferences, take online technical courses and participate in internal development workshops
  • Flexible working hours and different home office / office combinations
  • All work equipment & open modern office space in the centre of Ljubljana

If you meet the above requirements and would like to join us, please send your application in English or Slovenian to jobs@blubblub.org.

More about Blub Blub

Blub Blub Inc. creates high-quality smart screen time for children through our flagship Speech Blubs app, which was released in 2017 and is now the #1 speech and language app and #5 top-grossing app for children in the U.S.A. The app boosts young children’s comprehension and extends their vocabulary, whilst improving their pronunciation, attention, and even their emotional regulation.

We intend to become a leading player in early childhood education sector, with the offering of products that will help our users from saying the first words to having all the skills necessary to have a headstart in school.

Our team includes designers, marketers, growth experts, UX experts, data analysts, engineers, marketers, content creators, early education experts and psychologists. We are user- and customer-centric, data-informed, impact driven, and revenue-oriented. 

We have offices in Ljubljana (Slovenia), but work globally with experts, therapists, modeling agencies, and video production partners from Florida, London, Madrid, Johannesburg, Zagreb, …

If you want to test our app, let us know and we will be happy to send you a promo code! 

MARKETING

User Acquisition Apprentice / Junior

Ljubljana, Remote - SLO

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Blub Blub Inc. with Speech Blubs and Reading Blubs apps helps parents uncover their child’s true potential by helping them to speak and read sooner, better and increase their vocabulary faster. Why? Because it has been scientifically proven that early speech development & early literacy influence later success in life! And that’s our mission – help every child out there reach for the stars.🚀

Launched in 2017 and fast forward to today, the app has more than 3 million downloads.

Clearly we’re a young and fast-growing company that started in the speech and language development niche and will become a top-tier player in the children’s digital education app market by 2022.

Due to fast pace and constant growth we’re always on the lookout for new talents. 

At the moment we are looking for an online User Acquisition Manager. You can have some experience, you can be a pro, or you can just simply have the desire to become one and currently have no knowledge of the field at all. 

But there are few things you must possess – an amazing amount of positive energy, creative, analytical and critical thinking, ingenuity and open-mindedness.

Can you connect with that? Then keep on reading for more details or send us an email immediately. 😉

 Skills / Personal Traits we’re looking for:

  • Good communication skills 
  • Positive and proactive attitude
  • Problem solving mindset and google is your friend mindset
  • Learning, attention to details, out of the box thinking and creative mindset 
  • Some data analysis experience using Excel or similar tools
  • What can help with being selected, but is in no way a requirement? Owning Etsy, Amazon or any similar shops, have done some dropshipping, attended online courses, managed any kind of campaigns so far, etc.

Tasks you’ll be managing:

  • Plan, execute and analyze user acquisition campaigns across channels
  • Analyze the performance and measure ROI of all marketing activities
  • Communicate achievements, plans and goals
  • Collaborate with other team members and teams to implement and develop digital advertising campaigns

And what we offer:

  • Work with a young and fast-growing team.
  • Employment with a three-month trial period.
  • Salary ranging from $1.200 to $2.000 depending on experience level
  • Diverse work with exciting daily tasks inside a very relaxed working environment
  • Personal and professional development
  • Participation in attractive projects with bonus pay opportunities

MARKETING

User Acquisition Manager Senior

Ljubljana, Remote - SLO

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About Us:

Blub Blub Inc. with apps Speechblubs and ReadingBlubs helps parents uncover their child’s potential by providing the highest quality screen time out there. We are a young and fast-growing company that started in the speech and language development niche in 2017 and will become a top-tier player in the children’s digital app market by 2022.

Due to the fast pace and constant growth, we’re searching for new talents in marketing. At the moment we are looking for an online User Acquisition Manager, Campaign Manager, Ads Manager, Ads-will-save-the-world whatever you call yourself, but if you know what we mean you might be the right for us. So keep on reading.

And if you have other marketing skills feel free to apply as well and tell us about yourself. 😉

Responsibilities:

  • Plan, execute and analyze user acquisition campaigns across channels
  • Analyze the performance and measure ROI of all marketing activities
  • Track campaign and generate performance reports
  • Communicate plans, goals, and results
  • Good communication skills to efficiently cooperate with the broader team
  • Collaborate with product teams and executives to define marketing goals, develop a marketing strategy, and implement campaigns


Desired Skills / Knowledge:

  • Knowledge of Facebook Business Manager, Google Ads any other advertising channels
  • Data analysis experience using Excel or similar tools
  • Experience managing and optimizing advertising campaigns
  • Knowledge of different marketing and advertising strategies

We offer:

  • Work with a young and fast-growing team.
  • Employment with a three-month trial period.
  • Salary ranging from $1.500 to $3.500 depending on experience level
  • Diverse work with exciting daily tasks inside a very relaxed working environment.
  • The opportunity for personal and professional development.
  • Participation in attractive projects with bonus pay opportunities.