Hello, I'm
Kaustubh
Patange
Building high-performance backend systems, AI-powered platforms, and contributing core numerical computing to open source.
/01Where I've Worked
Experience
Google Summer of Code Contributor
@stdlib-js/stdlib- ◆Extending Level 2 and Level 3 BLAS routines (real and complex precision) with JavaScript, C, and Fortran implementations for near-native numerical performance in Node.js.
- ◆Implementing a three-layer API architecture (CBLAS-compatible interface, strided-array compute kernels, and ndarray wrappers) with loop unrolling and cache-friendly memory-access optimizations.
Core Contributor
@stdlib-js/stdlib- ◆Shipped 128 merged PRs spanning BLAS routines, statistical reductions, and native C add-ons, each with full test suites, benchmarks, and documentation.
- ◆Designed 60+ ndarray API packages and numerically stable computation kernels in JavaScript and C; reviewed community PRs to enforce strict API design, testing, and documentation standards.
Software Developer
@Nexentia- ◆Engineered scalable backend services and secure REST APIs (Node.js, Express, PostgreSQL) for a Warehouse Management System powering inventory tracking, order processing, and fulfillment workflows.
- ◆Designed normalized relational schemas with indexing and ACID-compliant transactions to guarantee stock consistency under concurrent order operations; implemented JWT authentication and role-based access control.
/02What I've Built
Featured Projects
CoSketch
Real-time Collaborative Whiteboard
Low-latency real-time collaboration system using persistent WebSocket connections to synchronize canvas operations across multiple concurrent users. Event-driven canvas state architecture for drawing, shape transformations, and persistent workspace management.
Corpora
Multimodal Agentic RAG Platform
Multi-tenant agentic RAG pipeline using LangGraph with hybrid vector search (dense + BM25, RRF fusion) and cross-encoder reranking — streaming citation-grounded answers over SSE at 31ms p95 retrieval latency. Async ingestion, CLIP text-to-image search, CI-gated retrieval evals, Clerk JWT multi-tenancy, and Langfuse observability.
/03My Toolbox
Technical Skills
Languages
Frameworks
AI & ML
Tools & Infra
/04Learning & Recognition
Education & Achievements
Education
Walchand Institute of Technology
Solapur, Maharashtra, India
B.Tech in Computer Science and Engineering
Minor in Electronics & Telecommunication Engineering
Related Coursework
◆ Linear Algebra
◆ Digital System Design
◆ Database Management Systems
◆ Scientific Computing
◆ Distributed Systems
◆ Data Structures & Algorithms
LeetCode
ProfileSolved 200+ data structure and algorithm problems.
stdlib Member
RepositoryMember of the numerical library stdlib on GitHub.
NPTEL Certification
CertificateProgramming with Generative AI (Aug — Oct 2025).
Infosys Springboard
CertificateAgile Scrum Certification (May 2026).
/05Let's Connect
Get In Touch
Open to internships, freelance work, open source collaboration, and interesting engineering problems. Inbox always open — I'll get back fast.