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EdTechPublished Updated 3 min read

Speech Scoring & Licensing System for AI-Powered EdTech Tools

Delivered a speech scoring pipeline and an institutional licensing dashboard for Vantage Labs, enhancing product usability and streamlining EdTech operations for schools.

EdTechAI IntegrationAdmin DashboardAmazon TranscribeSpring Boot
Client
Vantage Labs LLC
Project Type
EdTech, AI Integration, Admin Dashboard
Role
Software Engineer
Tech-stack
Java, Spring Boot, React, JHipster, PostgreSQL, AWS (Transcribe, S3), Keycloak, Material UI
Related Links
WriteShift - AI Essay ScoringCorrectEnglish - AI writing assistant

Vantage Labs is an AI-first incubator with deep expertise in Natural Language Understanding (NLU), powering educational products through over 40 patents in language processing and cognitive computing. During my 8-month tenure as a Senior Software Engineer, I contributed to two major initiatives: enhancing the AI-driven essay scoring platform with a new speech scoring feature, and developing a licensing dashboard for educational institutions using Vantage tools.

Goals

  • Extend Vantage’s existing essay scoring system to support spoken language evaluation
  • Build a scalable admin dashboard for institutions to manage student licensing
  • Improve UX and accessibility of various client-facing experiences
  • Maintain engineering discipline while delivering features in a fast-moving Agile team

My Contributions

1. Speech Scoring Integration

Vantage’s essay scoring system was already widely adopted by schools. A new requirement emerged to score students’ spoken responses in different assessment environments.

  • Integrated Amazon Transcribe to convert audio recordings into text
  • Used Amazon S3 to store and manage user-submitted speech files
  • Connected transcribed content to Vantage’s internal essay scoring engine
  • Delivered a seamless backend pipeline using Java and Spring Boot
  • Enabled the “Speech Scoring” feature within writeSHIFT, enhancing its real-world usability for teachers and institutions

2. Licensing Dashboard for Institutions

I developed a robust admin dashboard to help school authorities manage software licensing for students. The dashboard allowed institutions to:

  • Bulk order licenses for Vantage products
  • Track license usage, including whether each student activated their license
  • View and update license validity periods

Technical highlights:

  • Bootstrapped with JHipster, combining Spring Boot and React.js
  • Used PostgreSQL as the data store
  • Integrated Keycloak for secure authentication and role-based access
  • Built UI using Material UI, ensuring accessibility and consistency

3. Browser Extension UI Enhancements

I also contributed to improving customer onboarding by implementing the welcome and marketing screens for the CorrectEnglish browser extension, helping users understand the value of the tool quickly and intuitively.

Outcome

  • Extended the platform to support speech-based assessments, increasing product value and versatility
  • Delivered a production-ready licensing dashboard, empowering institutions to manage students at scale
  • Helped improve first-time user experience for a browser-based product used by thousands
  • Maintained high standards of code quality and team collaboration within an Agile setup

Key Takeaways

  • Leveraging AWS tools like Transcribe and S3 enabled fast, scalable voice-to-text workflows
  • JHipster proved valuable for accelerating admin dashboard development in a secure, maintainable stack
  • Close collaboration with cross-functional teams ensured technical solutions aligned with product and business goals
  • Speech scoring introduced multi-modal AI capability to a traditionally text-based assessment platform

Tools & Technologies

  • Java, Spring Boot, JHipster
  • React, Material UI
  • PostgreSQL
  • Keycloak
  • Amazon Transcribe, Amazon S3
  • Jira for Agile workflow (Scrum + Kanban)

Have a challenging engineering problem?

I'm interested in working with teams building technically ambitious products. If you need someone who can take ownership from architecture through production, let's talk.

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