Shubhankar Vivek Shastri profile photo 1 on Tal

Shubhankar Vivek Shastri

Engineering @Wayground(formerly Quizizz) | Ex Yugabyte | B.E. (CSE) @BITS Pilani ’24

Bengaluru

2+ years of work experience

Wayground (formerly Quizizz)
Dec 20241 yr 8 mosJul 2026

Bengaluru

• Sole backend owner of VoyageMath, a distributed microservice at 1.5K RPM baseline (5.5K RPM peak), growing from 4K beta teachers to 150K+ worldwide and 600K+ students. • Developed a voice tutor agent integrating ElevenLabs, driving 350+ hours of conversation and 35K+ sessions within the first month of release, contributing to a 12% lift in top-of-funnel engagement. • Architected and shipped the post-beta freemium model (60-day trial → free tier) with a subscription lifecycle state machine and plan-based entitlement enforcement to control feature access. • Engineered Stripe webhook integration with idempotency guarantees and observability hooks, processing $20K+ individual and $150K+ school plan revenue across monthly and annual billing cycles. • Reduced P50 search latency by 90%+ (6s → 41ms) by migrating fuzzy-search logic server-side to Elasticsearch, eliminating client-side computation and improving SLA reliability. • Built a high-concurrency Bulk Assign system using Go goroutines and errgroup-based parallel fan-out, ensuring safe shared-state updates and sustaining ∼500ms P99 latency under peak load. • Built Kafka-based asynchronous LMS pipelines to decouple assignment creation from external posting and enable scalable grade synchronization by processing student submissions and aggregating best attempts. • Designed a recursive hierarchical content model to represent publisher curricula, enabling flexible multi-level structures and efficient mapping of skills across diverse content schemas.
Liminal Custody
Jul 20246 mosDec 2024

Bengaluru

• Built an internal UI component library in Angular with 15+ reusable components, adopted in the Firewall feature. • Integrated SonarQube across all repos with a 15% issue threshold gate — PRs that introduce new violations breaching the threshold are automatically blocked, enforcing code quality standards at the source before merge.
Yugabyte
Jan 20246 mosJun 2024

Bengaluru

• Built the Query Diagnostics feature on the Observability team — a diagnostic bundle generator targeting 50% reduction in DBA troubleshooting time by collecting PGSS, ASH, Explain Plans, Bind Variables, and Schema Details within configurable time windows at the Postgres layer.
Reckitt
May 20233 mosJul 2023

Hyderabad, Telangana, India

Worked on Alation APIs to implement data lineage in Trinity(data lake).
MapmyIndia
Jun 20222 mosJul 2022

Explored the suite of APIs provided by MapmyIndia and worked on the route optimization API.
GitHub
@Shubhankar1004

Shubhankar’s AI Stack

cursor
cursor
opencode
opencode
claudecode
claudecode

Education

Birla Institute of Technology and Science, Pilani

Bachelor of Technology - BTech, Computer Science

Birla Institute of Technology and Science, Pilani

20204 yrs2024

ISC

Little Flower school

20202020

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Headline

Engineering @Wayground(formerly Quizizz) | Ex Yugabyte | B.E. (CSE) @BITS Pilani ’24

About

B.E. in Computer Science from BITS Pilani. Backend-focused Software Engineer at Wayground (formerly Quizizz), owning services from design and implementation to production and monitoring for the VoyageMath team. Currently I am working with Golang, MongoDB, Redis, Kafka, Elasticsearch, and AWS. I enjoy building scalable systems, improving performance and reliability, and solving problems at scale with real-world impact. I’m interested in backend roles that involve system design, scale, and owning production systems.

Location

Bengaluru

AI stack

cursor

opencode

claudecode

Work experience

Software Engineer at Wayground (formerly Quizizz), Dec 2024 - Jul 2026 · 1 yr 8 mos, Bengaluru, • Sole backend owner of VoyageMath, a distributed microservice at 1.5K RPM baseline (5.5K RPM peak), growing from 4K beta teachers to 150K+ worldwide and 600K+ students. • Developed a voice tutor agent integrating ElevenLabs, driving 350+ hours of conversation and 35K+ sessions within the first month of release, contributing to a 12% lift in top-of-funnel engagement. • Architected and shipped the post-beta freemium model (60-day trial → free tier) with a subscription lifecycle state machine and plan-based entitlement enforcement to control feature access. • Engineered Stripe webhook integration with idempotency guarantees and observability hooks, processing $20K+ individual and $150K+ school plan revenue across monthly and annual billing cycles. • Reduced P50 search latency by 90%+ (6s → 41ms) by migrating fuzzy-search logic server-side to Elasticsearch, eliminating client-side computation and improving SLA reliability. • Built a high-concurrency Bulk Assign system using Go goroutines and errgroup-based parallel fan-out, ensuring safe shared-state updates and sustaining ∼500ms P99 latency under peak load. • Built Kafka-based asynchronous LMS pipelines to decouple assignment creation from external posting and enable scalable grade synchronization by processing student submissions and aggregating best attempts. • Designed a recursive hierarchical content model to represent publisher curricula, enabling flexible multi-level structures and efficient mapping of skills across diverse content schemas.

Software Engineer at Liminal Custody, Jul 2024 - Dec 2024 · 6 mos, Bengaluru, • Built an internal UI component library in Angular with 15+ reusable components, adopted in the Firewall feature. • Integrated SonarQube across all repos with a 15% issue threshold gate — PRs that introduce new violations breaching the threshold are automatically blocked, enforcing code quality standards at the source before merge.

Software Development Engineer Intern at Yugabyte, Jan 2024 - Jun 2024 · 6 mos, Bengaluru, • Built the Query Diagnostics feature on the Observability team — a diagnostic bundle generator targeting 50% reduction in DBA troubleshooting time by collecting PGSS, ASH, Explain Plans, Bind Variables, and Schema Details within configurable time windows at the Postgres layer.

Data Engineering Intern at Reckitt, May 2023 - Jul 2023 · 3 mos, Hyderabad, Telangana, India, Worked on Alation APIs to implement data lineage in Trinity(data lake).

Summer Intern at MapmyIndia, Jun 2022 - Jul 2022 · 2 mos, Explored the suite of APIs provided by MapmyIndia and worked on the route optimization API.

Education

Bachelor of Technology - BTech, Computer Science, Birla Institute of Technology and Science, Pilani

ISC, Little Flower school

Public links

github: https://github.com/Shubhankar1004