Hi, I'm
Sumedh Sangle
I care about backend systems that are boring in the best way: stable, scalable, and easy to reason about.

About Me
A glimpse into my journey, education, and the technical arsenal I use to build digital products.
Who am I?
Full-stack software engineer with a backend-first approach, focused on building reliable, data-driven web applications. Final-year B.E. Computer Engineering student (CGPA 8.86), currently interning at Gryphon Academy and working on system design, backend APIs, and production features.
Education
B.E. Computer Engineering
Indira College of Engineering
Frontend & Design
Backend & Cloud
Database
Core & Tools
Certifications & Extra
Work Experience
My professional journey in building scalable software solutions.
Software Developer Intern
- Designed and implemented a role-based leaving certificate generation system with approval workflows, enforcing strict access isolation between students, admins, and superadmins.
- Built the backend for an online testing platform supporting 1,000+ concurrent students, handling MCQ and subjective responses with a focus on write scalability and data reliability.
- Contributed to a CRM budget management module by implementing backend workflows for budget tracking, vendor records, and purchase order handling across departments.

Full Stack Developer
- Designed and implemented RESTful APIs to support application workflows, focusing on clean data contracts and reliable data flow.
- Built and maintained backend services using Node.js and MongoDB, working with modular application structure.
- Collaborated on full-stack features using React.js and Next.js, ensuring consistency between frontend and backend logic.

Selected Works
A selection of production systems and engineering-focused projects I’ve worked on.
Enterprise & Internship

Enterprise Testing Platform
An online examination system built to handle burst traffic during exam windows, with a backend optimized for write-heavy workloads and consistent data persistence.
Key Engineering
- Handled 1,000+ concurrent users during peak exam windows.
- Optimized write-heavy workloads for subjective & MCQ responses.
- Designed backend workflows to guarantee write consistency for exam submissions under concurrent load.

Certificate Issuance System
A secure, role-based automated workflow for generating and verifying student credentials.
Key Engineering
- Implemented strict RBAC for Students, Admins, and Superadmins.
- Automated approval pipelines reducing manual verification time.
- Generated tamper-proof PDF credentials dynamically.

CRM: Financial Budget Module
A financial oversight module ensuring data consistency across departmental expenditures.
Key Engineering
- Digitized Purchase Order (PO) workflows for vendor management.
- Enforced atomic transactions to ensure budget data integrity.
- Real-time tracking of utilized vs. allocated funds.
System Design & Open Source
DebugDen Q&A Platform
A developer community platform featuring reputation systems and AI-assisted answers.
NextJS Secure Auth Template
A production-ready authentication boilerplate implementing industry standard security patterns.