Fullstack Engineer


At ELSA we have developed our own backend infrastructure using a Python-based stack and our frontend mostly based on Vue.js. Everything happens in the apps and in the backend gets tracked and stored into our databases. As a full-stack developer on the growth squad you will be modifying both backend and frontend and analyzing the resulting data to help ELSA leadership team make important decisions on the ELSA product future.

As part of your role you will:

  • Transform abstract ideas specifications into actionable engineering tasks
  • Design and implement new backend and frontend experimental features for the ELSA products
  • Setup logs and metrics and evaluate how these experimental features are performing.
  • Derive conclusions from the obtained metrics and present them to the ELSA management team
  • Interact with other staff at ELSA to decide on which experimental features should be evolved and which ones should be killed.


  • Technical requirements:
    • Must have 2+ years experiences on modern web framework: VueJs or ReactJS or AngularJS 
    • Experience with frontend website development HTML/CSS/Javascript
    • Experience with integrating with API backend
  • Advantage technical if you have one of following experiences/knowledge:
    • Optimize SEO for website
    • Developed API with Python
  • Others:
    • Familiar with Scrum Agile team process
    • Practice professional software development (Testing, GIT, CI/CD)
    • Be curious and eager to learn, be a team player and be ready to put a lot of effort in the project
    • Good communication skills in English, both oral and written.

Why You’ll Love Working Here

  • Competitive salary according to seniority
  • Stock options
  • Flexible working hours
  • Ample room to grow professionally, in a global environment
  • Friendly work environment, no office politics
  • Experience the true startup spirit of a fast growing and well funded Silicon Valley startup
  • Opportunity to work on a mission that can transform the lives of 1.5 Billion language learners around the world



Apply now to maximize your talents and make a real impact! Send your CV to [email protected]



Want to work on the mission of helping 1.5 Billion English learners around the world? Join ELSA, a Silicon Valley based fast-growing startup with the most powerful artificial intelligence technology that detects pronunciation accents. We’re on a mission to help people to speak English with confidence, and empower them to reach their potential.

Since launching in 2016, we grew organically to over 4 million users worldwide. ELSA has offices in Silicon Valley (USA), Lisbon (Portugal), and Saigon (Vietnam).

We have built out our track records with high calibre teams:

– “The Best Digital Learning App” at Reimagine Education 2016

– The 2016 winner of the world’s largest startup competition SXSWEdu Launch

– Recently invested by Google AI’s fund

– Recognized as Top 5 Best Artificial Intelligence Apps (by Research Sniper), and Top 4 Companies Using AI To Transform The World (by Forbes)

– Proven mobile app product with a growing user base of 4 million people from 101 countries