Backend Engineering Intern @ LazyStudents.in · Open Source Project Admin (Arachnode)
B.E. Computer Science & Engineering · MITE · 2027 · CGPA 9.43

Backend and systems engineering student specializing in event-driven microservices, enterprise workflow backends, and secure Linux-level programming.

I build things because I need them or because the problem is interesting; not to pad a portfolio.

Currently: Backend Engineering Intern at LazyStudents.in — building a new product from scratch as the primary backend engineer, and leading the interns team.

Open source: Project Admin for Arachnode — a distributed job-discovery platform with 26 stars · 47 forks · 143 commits, contributing community from GSSoC and ELUSOC.

Targeting: SDE-1 / Junior Backend Engineer or relevant roles at product companies and startups.

Built because I genuinely needed it. Manual job tracking was unscalable.

7 independent microservices · Redis Streams consumer groups · 4-tier test suite (unit / integration via testcontainers / contract / e2e) · OSINT recruiter enrichment · Ollama-powered cold-email drafting · APScheduler automation

Python FastAPI Redis Streams PostgreSQL Docker Scrapy Playwright pytest testcontainers

Why Redis Streams over Kafka: sufficient at-least-once delivery semantics with zero broker overhead for a self-hosted deployment.

Paper-based hostel permission slips. No audit trail. Wardens unavailable. I built the digital replacement.

5-role permission workflow (Student / Warden / Chief Warden / Admin / Security) · JWT-signed QR certificates valid for exactly 2 scans · Modular monolith (Node.js + Prisma) across 7 modules · Nginx reverse proxy with SSL termination · node-cron overdue detection · SMTP parent notifications

Attempted Tatvik TMF20 biometric integration via a .NET 4.8 bridge — hit a firmware wall; pivoted to the QR-based flow. Full SRS with 40+ FRs, ERD, and 4 system process flow diagrams.

Node.js Express PostgreSQL Prisma JWT Docker Nginx QR Codes node-cron

Departments spend days generating timetables manually. The constraint-satisfaction problem hooked me.

Greedy constraint-propagation engine · 8 hard constraints (no double-booking across faculty/room/section, 55-min gap, load caps, room-type matching, break isolation) · Section-first generation strategy · Fallback faculty assignment · Generates conflict-free schedules in under 2 minutes vs. days manually · H2 integration tests · Flyway V1–V10 · Excel/PDF export

Java 17 Spring Boot 3 PostgreSQL Flyway H2 Apache POI Docker

Paper-based faculty appraisal process. No consistency, no audit trail. Built the backend to replace it.

State-machine workflow: DRAFT → SUBMITTED → HOD_REVIEWED → FINALIZED → LOCKED · Full audit trail (userId, timestamp, old/new value) · JWT auth + RBAC across 4 roles · Configurable scoring weights validated to sum to 100% · 13 Flyway migrations · @Valid on all endpoints

Java 21 Spring Boot 4 Spring Security PostgreSQL Flyway JWT Docker OpenAPI

I wanted AI in my terminal, locally, no internet. Making it safe on a live system turned it into a security problem.

Sandboxed C shell integrating TinyLlama-1.1B via llama.cpp · Fully offline, air-gapped post-setup · Four-layer security: Seccomp syscall whitelist · PID/mount namespace isolation · Capability dropping · rlimit caps · First query ~2–3s (model load) · Subsequent ~1–2s · 10–20 tok/s on CPU

C llama.cpp Seccomp Linux Namespaces rlimits CMake

The goal wasn't another AI music app. The goal was: can multiple ML models with different runtimes be orchestrated reliably?

3 heterogeneous ML models behind a single Flask orchestration layer: MusicGen (audio) · Fine-tuned GPT lyric model (verse/chorus structure enforcement) · YAMNet + GTZAN classifier (genre + confidence) · Model preloading + graceful Hugging Face fallback · 45% latency reduction (2.2s → 1.2s avg init)

Python Flask MusicGen YAMNet PyTorch TensorFlow MongoDB React

Built for fun. Ended up at 176,000 LinkedIn impressions. Not everything needs to be enterprise-grade.

21 hand landmarks tracked per hand via MediaPipe · Weighted moving-average smoothing (factor 0.3) · Dual-hand control: pinch gesture for tool selection, index-finger extension for drawing · HD canvas 1280×720

Python OpenCV MediaPipe NumPy

{
  "languages":    ["Java", "Python", "SQL", "C", "JavaScript (Node.js)"],
  "backend":      ["Spring Boot", "Spring Security", "FastAPI", "Flask", "Express.js", "JWT", "RBAC"],
  "databases":    ["PostgreSQL", "Redis Streams", "MongoDB", "MySQL", "Firestore", "Flyway", "Prisma"],
  "devops":       ["Docker", "Docker Compose", "Nginx", "GitHub Actions", "Linux", "Bash", "Git"],
  "testing":      ["pytest", "testcontainers", "H2 integration", "Unit / Contract / e2e"],
  "architecture": ["Event-Driven Microservices", "Consumer Groups", "Modular Monolith",
                   "State Machines", "Audit Trails", "Constraint Scheduling"],
  "systems":      ["Linux Namespaces", "Seccomp", "rlimits", "llama.cpp", "Syscall Analysis"],
  "ml_cv":        ["PyTorch", "TensorFlow", "MusicGen", "YAMNet", "MediaPipe", "OpenCV", "Ollama"]
}

Oracle (4)
  ├── OCI 2025 DevOps Professional          [Nov 2025]
  ├── OCI 2025 Data Science Professional    [Oct 2025]
  ├── OCI 2025 Generative AI Professional   [Oct 2025]
  └── OCI 2025 GenAI Foundations Associate  [Sep 2025]

Google Cloud / Coursera (3)
  ├── Cloud Security Engineer Specialization     [Jul 2024]
  ├── Security in Google Cloud Specialization    [Sep 2024]
  └── Google Cybersecurity Professional Cert.

open source   Project Admin @ Arachnode · GSSoC / ELUSOC · 25+ PRs reviewed
leadership    President, Coders Club @ MITE · Hack n' Seek: 700+ online · 180 on-site
hackathon     FusionX Dizzy Mega Hackathon · built VulnGraph (attack path visualization)
community     TCS TechBytes Regional Round · DevFest 2025 GDG Cloud Mangalore
education     MITE · B.E. CSE · CGPA 9.43 · Sep 2023 – Jun 2027

I want to build things that require real thinking — where the decision I make about a message queue or a transaction boundary actually matters.

Interested in security-aware systems engineering. Considering an MS in Security down the line.

Right now: looking for SDE-1 / Junior Backend Engineer roles at product companies and startups.

→ vaibhavsharmaa.me  ·  linkedin.com/in/sharmavaibhav31