EduSpark: Scaling from 0 to 50,000 Active Learners in 6 Months
About the Client
EduSpark Learning was founded by two educators from IISc Bangalore with a clear mission: to make high-quality professional certification courses accessible to working professionals in Tier-2 and Tier-3 Indian cities. Their content model — short, structured courses in data analytics, digital marketing, financial modeling, and UX design taught by industry practitioners — was validated through a small cohort delivered over Zoom and Google Classroom. The results were exceptional: course completion rates above 70% and strong net promoter scores. What they needed was a platform that could scale the model.
The founding team was deeply domain-expert but had no technical background. They came to Abstriq with a slide deck, a content roadmap for 40 courses, a pre-launch waitlist of 3,200 students, and a seed round that put hard constraints on timeline and budget. They needed an MVP in four months and a platform capable of handling 10x growth without requiring a rebuild.
Project Details
- Client
- EduSpark Learning
- Location
- Bangalore, India
- Company Size
- Startup
- Industry
- Education & EdTech
- Service
- Web Development
- Technologies
- Next.js 14Node.jsMongoDB AtlasAgora.ioAWS S3CloudFrontRedisStripeTypeScript
- Published
- August 27, 2024
What Was Holding EduSpark Learning Back
The core challenge for EduSpark was the combination of requirements that each individually would have been manageable, but together created a genuinely complex engineering problem. They needed live video classrooms capable of handling 200-500 concurrent learners per session with screen sharing and breakout rooms. They needed asynchronous video content delivery at scale — courses with 6-12 hours of video per track — without the buffering issues that plague learners on slow connections in smaller cities. They needed assessment infrastructure: timed quizzes with anti-cheat measures, auto-grading, and manual grading workflows for written assignments. And they needed certificate issuance with QR code verification, a feature that turned out to be essential for learner motivation.
The infrastructure challenge was compounded by the unpredictable demand profile of an EdTech launch. Pre-registration interest was strong, but actual enrollment velocity after launch was unknown. The platform needed to be architected to handle both the quiet periods and the traffic spikes that accompany new course announcements and social media virality — which happened twice in the first three months, each time driving 5-10x normal traffic for 24-48 hours.
Budget constraints ruled out enterprise learning platforms like Teachable or Kajabi, which lacked the customization needed for EduSpark's community features, and also ruled out a lengthy custom build from scratch. The team needed smart architectural choices that prioritized build speed and operational simplicity while not creating technical debt that would block growth.
How Abstriq Solved It
Abstriq delivered a full-stack LMS built on a Next.js 14 frontend and a Node.js/Express API backend with MongoDB Atlas as the primary datastore. The architecture was designed for operational simplicity: everything deployable to AWS with clear scaling levers that the team could operate without deep infrastructure expertise.
For live video, we integrated Agora.io's RTC SDK, which provided the sub-300ms latency and 500-concurrent-user capacity EduSpark needed without the complexity of running WebRTC infrastructure in-house. Course instructors use a custom instructor dashboard for session management, screen sharing, and participant management. Recordings are automatically stored to S3 and transcoded to adaptive bitrate HLS using AWS Elastic Transcoder, with CloudFront serving the content globally to minimize buffering for learners on variable connections.
The assessment engine supports multiple question types — MCQ, short answer, file upload — with a quiz timer, tab-switch detection, and configurable randomization. Auto-grading runs server-side on submission; instructor review queues surface written assignments that need manual grading. Certificates are generated server-side as PDFs using Puppeteer with a unique QR code linking to a public verification endpoint — a feature that quickly became one of the most shared social proof elements in EduSpark's marketing. Redis provides session caching and manages the real-time quiz state for concurrent quiz sessions, ensuring consistent timer and submission behavior across distributed instances. AWS EC2 with auto-scaling groups handled two significant traffic spikes in the first 90 days, scaling from 2 to 20 instances in under four minutes during peak demand.
How We Built It
The Numbers That Matter
Reached in 6 months post-launch
Industry average for online courses is ~15%
First full year post-platform launch
PWA rated on Chrome Web Store by learners
Technologies Used
Client Testimonial
“Abstriq didn't just build us a platform — they became our technical co-founders for those first four months. They asked the right questions about our pedagogy, pushed back when we were over-engineering, and delivered a system that has scaled far beyond what we imagined at the start. Reaching 50,000 learners in six months would not have been possible without this infrastructure.”
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