Mokshi Devi Rajak
Node JS
JavaScript
API Design: 4/10
Data Layer & Database: 4/10
Scalability & Performance: 4/10
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Overview
Technical skills
Roles
Overview
Backend API engineer (approx. mid-level) with practical experience building real-time queueing and civic apps; the strongest asset is implementing real-time user-facing features that combine Redis atomic ops, MongoDB data models, and socket.io notifications. The most proven skill is building a queue/appointment flow with token generation and notify-on-5-minutes logic as implemented in backend/controllers/appointmentController.js backed by notificationService.js. The codebase lacks test coverage, formal migration history, structured observability, and advanced token lifecycle management which are not evidenced publicly.
Technical skills
Node JS• Senior
JavaScript• Middle
Node JS
Axios
Express
Mongoose
Ioredis
Nodemailer
Bcrypt
Passport.js
Databases
MongoDB
Redis
Frontend
Mantine
React.js
React Router
Recharts
Socket.IO
Tailwind CSS
DevOps
WebRTC
Senior Backend Developer
Confidence: High API Engineer
Backend API engineer (approx. mid-level) with practical experience building real-time queueing and civic apps; the strongest asset is implementing real-time user-facing features that combine Redis atomic ops, MongoDB data models, and socket.io notifications. The most proven skill is building a queue/appointment flow with token generation and notify-on-5-minutes logic as implemented in backend/controllers/appointmentController.js backed by notificationService.js. The codebase lacks test coverage, formal migration history, structured observability, and advanced token lifecycle management which are not evidenced publicly.
API Design
4/10
How well APIs are designed
APIs are consistent and pragmatic with clear JSON responses and some defensive checks, but lack systematic versioning, documented error contracts, idempotency keys, or pagination patterns across endpoints.
Evidence
QueuePro-Enhanced/backend/controllers/appointmentController.js - consistent success/error JSON responses and search endpoint handling
QueuePro-Enhanced/backend/controllers/authController.js - signup/login/verify flows with structured responses
QueuePro-Enhanced/frontend/src/App.js - ProtectedRoute guard showing client-side contract expectations
Data Layer & Database
4/10
Working with databases
Uses MongoDB/Mongoose appropriately with populate and aggregated counts; seed scripts show schema population. There is limited evidence of transaction boundaries, migration history, or explicit N+1 mitigation for some per-appointment counts.
Evidence
QueuePro-Enhanced/backend/controllers/appointmentController.js - multiple countDocuments/populate queries and aggregate-style Promise.all usage
QueuePro-Enhanced/backend/seeds/seed.js - Department/Doctor seed script populating initial data
water-tracker/backend/models/Usage.js - Mongoose schema definition
Scalability & Performance
4/10
Handling load and speed
Shows awareness of scaling and concurrency via Redis atomic incr/rpush and socket.io real-time updates. There is limited formal caching strategy, no advanced invalidation, and no documented load-testing or connection pooling configs.
Evidence
QueuePro-Enhanced/backend/controllers/appointmentController.js - redis.incr + redis.rpush with DB fallback for token generation
QueuePro-Enhanced/backend/services/notificationService.js - nodemailer and optional Twilio usage for notifications
QueuePro-Enhanced/backend/package.json - dependencies include ioredis and socket.io indicating real-time/scale thinking
System Architecture
4/10
Overall system structure
Code is modular with controllers, services, config, seeds and socket integration, showing deliberate organization; it remains a monolith without service decomposition, and config/secret handling is env-driven but lacks advanced secret management or multi-service contracts.
Evidence
QueuePro-Enhanced/backend/controllers/appointmentController.js - controller-focused server-side module
QueuePro-Enhanced/backend/services/notificationService.js - separated notification service
QueuePro-Enhanced/backend/seeds/seed.js - declarative data seeding indicating folder/module boundaries
Security & Auth
4/10
Protecting data and access
Good practical auth basics: bcrypt hashing, JWT-based tokens with expiry, OTP flow and email verification. Missing advanced token lifecycle (refresh/revocation), consistent input validation and rate limiting enforcement in shown code.
Evidence
QueuePro-Enhanced/backend/controllers/authController.js - bcrypt password hashing, OTP handling, jwt.sign with expiry
QueuePro-Enhanced/backend/services/notificationService.js - use of environment secrets for email/SMS
QueuePro-Enhanced/backend/package.json - includes express-rate-limit and passport (present in deps but usage not visible)
Reliability & Observability
3/10
Stability and monitoring
Basic reliability patterns exist: try/catch fallbacks, console logging, and safe server start error handling. There is little evidence of structured logging, tracing/correlation ids, retries with backoff, circuit breakers, or metrics/alerts.
Evidence
QueuePro-Enhanced/backend/controllers/appointmentController.js - multiple try/catch blocks and Redis fallback to DB count
QueuePro-Enhanced/backend/services/notificationService.js - try/catch with warning logs when email/SMS fail
water-tracker/backend/server.js - server.on('error') handling for EADDRINUSE
Expertise
Messaging & Real-time• Senior
Microservices & API Architecture• Middle
Node.js• Middle
Technologies
Node JS• Senior
MongoDB
Redis
Express
WebRTC
Bcrypt
Passport.js
Recommendations
- Implement a dedicated notification worker (separate process) for email/SMS pushes and retries with exponential backoff and idempotency keys to improve reliability under load.
- Add schema migrations and a migration history tool (e.g., migrate-mongo or similar) and convert per-request expensive counts into pre-aggregated metrics or indexed queries to avoid N+1 patterns.
- Introduce structured logging and tracing (OpenTelemetry) plus simple metrics (Prometheus) and health endpoints to support production monitoring and alerting.
- Harden authentication by adding refresh tokens, token revocation, and centralized rate-limiting on sensitive endpoints with clear input validation and sanitization.
Repositories
The developer's experience in this domain has been verified based on AI analysis of the following repositories:
Middle Frontend Developer
Confidence: Medium Fullstack
Fullstack web developer (early-career / approachable senior threshold) focused on building real-time queue and appointment systems with interactive frontends. The strongest proven skill is implementing real-time queueing and notification flows backed by Redis, MongoDB and socket.io as shown in backend/controllers/appointmentController.js and services/notificationService.js. There is limited evidence of automated test coverage, formal performance benchmarking, or integrated accessibility tooling in public code.
UI Component Architecture
4/10
How interface parts are built
Custom UI pieces and CSS tokens with a small React component structure; not a design-system scale but deliberate composition and custom hooks/vanilla DOM logic are present.
Evidence
ManageQueue-in-real-time-/frontend/src/App.js: SPA routing and ProtectedRoute guard implementation
QueuePro-Enhanced/frontend/src/components/TokenCard.js: custom token UI component (component evidence)
Mokshi076/Mokshita-s-Friend/index.html + script.js: handcrafted interactive UI (slider, ttt, confetti) built without a UI-kit
Responsive & Cross-browser
3/10
Works on all screens and browsers
Responsive rules and fluid typography are used (clamp, media queries) but no advanced feature-detection, container queries or explicit RTL/i18n scaffolding.
Evidence
Mokshi076/Mokshita-s-Friend/style.css: clamp(), aspect-ratio and media query usage
QueuePro-Enhanced/frontend/src/index.css: responsive @media rules and token-driven breakpoints
Performance Optimization
4/10
Speed of the interface
Reasonable performance awareness: animated canvas uses requestAnimationFrame, backend uses Redis for queueing with a Mongo fallback and socket.io for real-time updates; lacking measured before/after telemetry or long-list virtualization on the client.
Evidence
Mokshi076/Mokshita-s-Friend/script.js: requestAnimationFrame-driven galaxy and sparks animation
Mokshi076/QueuePro-Enhanced/backend/controllers/appointmentController.js: redis token increment with MongoDB fallback and socket.io emissions
Mokshi076/ManageQueue-in-real-time-/backend/controllers/queueController.js: redis lrange/llen and targeted socket.io room emits
Accessibility & Semantics
3/10
Usable for everyone
Some keyboard and focus handling exists for custom widgets and chat input, but there is limited evidence of systematic a11y tooling, ARIA usage or focus management across the SPA.
State Management & Data Flow
4/10
Managing data in the app
Server-state discipline is evident: Redis + Mongo patterns, queued operations, socket-driven real-time updates and notification flows; client-side shows route guard and token-based auth but no evidence of advanced optimistic-update patterns or structured client cache invalidation.
Evidence
Mokshi076/QueuePro-Enhanced/backend/controllers/appointmentController.js: enqueue token handling, estimatedWaitMins calculation, autoNotifyFiveAway
Mokshi076/ManageQueue-in-real-time-/backend/controllers/queueController.js: joinQueue and callNext using queueService + redis
ManageQueue-in-real-time-/frontend/src/App.js: ProtectedRoute pattern using localStorage token and user object
UX & Visual Polish
5/10
Look and feel quality
High visual polish and UX-focused details: animated canvas, confetti, placeholders and thoughtful microinteractions; however missing systematic loading/error skeletons across the SPA in the visible code.
Evidence
Mokshi076/Mokshita-s-Friend/script.js + index.html: confetti, balloons, music toggle, candle interactions and ttt microinteractions
Mokshi076/Mokshita-s-Friend/style.css: extensive animation keyframes and visual token system
QueuePro-Enhanced/frontend/src/index.css: animated gradients, 3D card and UI token design system
Expertise
React• Middle
PWA & Web APIs• Middle
Industries
Financial Services• Middle
Government• Middle
Health Care• Middle
Technologies
Tailwind CSS
Socket.IO
React.js
Mongoose
Axios
Nodemailer
Ioredis
Mantine
Recharts
React Router
Recommendations
- Lead development of real-time queueing or appointment systems (hospital, bank, government) integrating Redis, Mongo and socket.io.
- Build interactive SPA pages with polished microinteractions and canvas/WebAudio features where UX and visual polish matter.
- Implement a robust client-side state/cache strategy (React Query or similar) with optimistic updates and automated tests to raise product maturity.
- Harden infra and security posture: add CI, secrets management and automated a11y and performance checks.
Repositories
The developer's experience in this domain has been verified based on AI analysis of the following repositories:
Middle QA Engineer
Confidence: Medium Generalist
Full-stack JavaScript developer at a Middle level specializing in real-time queue and appointment management systems. The strongest proven skill is backend API and real-time integration, evidenced by backend/controllers/appointmentController.js and queueController.js which implement Redis fallback, socket.io notifications, and email/SMS notification services. There is little to no public evidence of automated test suites, CI integration, contract testing or performance/load testing.
Test Automation Frameworks
1/10
Building automated tests
Minimal test automation artifacts: project includes testing libraries placeholders but no developer-written fixtures, isolated test infrastructure, data factories or robust selectors.
Evidence
QueuePro-Enhanced/frontend/package.json: @testing-library/* dependencies declared
QueuePro-Enhanced/frontend/src/setupTests.js: present but empty placeholder
QueuePro-Enhanced/frontend/src/App.test.js: trivial import of App with no thorough assertions
Test Coverage & Strategy
1/10
What and how to test
No visible test coverage strategy, negative-path tests, property-based tests or mutation testing; test scripts are placeholders.
Evidence
QueuePro-Enhanced/frontend/src/App.test.js: lightweight/trivial test file
QueuePro-Enhanced/backend/package.json: test script is a placeholder echo 'Error: no test specified'
API & Integration Testing
1/10
Testing how parts work together
APIs and integrations are implemented but there is no evidence of contract testing, schema validation of responses, idempotency tests or integration test containers.
Evidence
QueuePro-Enhanced/backend/controllers/appointmentController.js: many API endpoints and external integrations (Redis, email, SMS) but no contract or integration tests
ManageQueue-in-real-time-/backend/config/email.js: external email integration implemented without accompanying integration tests
Performance & Load Testing
1/10
Testing speed under load
No performance or load testing artifacts, scenarios, SLOs or performance regression baselines are present despite use of Redis and socket.io.
Evidence
ManageQueue-in-real-time-/backend/controllers/queueController.js: uses Redis/socket.io for real-time queues but contains no load testing hooks
QueuePro-Enhanced/backend/package.json: no k6/locust/gatling or load test scripts declared
Bug Reporting & Analysis
1/10
Finding and describing bugs
No public bug reports, root-cause analyses, flaky-test investigations or linked fixes are present in the examined files or metadata.
Evidence
NON-SCORING CONTEXT: community_docs shows CONTRIBUTING=no, CHANGELOG=no
Top-level project files and package.json scripts: no changelog, issue templates or postmortem artifacts
CI Test Integration
1/10
Running tests automatically
No CI workflow, per-test retry policy, test artifact collection or test matrix configuration is present in the codebase.
Evidence
QueuePro-Enhanced/package.json: scripts for starting server/client but no CI/test integration files
ManageQueue-in-real-time-/package.json: no CI or automated test pipeline configuration
Industries
Financial Services• Middle
Government• Middle
Health Care• Middle
Technologies
JavaScript• Middle
Recommendations
- Implement automated API contract tests and schema validation (Pact or schemathesis) covering success and specific negative responses (400, 403, 404, 409, 500) for the main endpoints in backend/controllers.
- Add unit and integration test suites with isolated fixtures and data factories for controllers and services, and wire them into CI (GitHub Actions) to run on PRs and merges.
- Introduce load and performance testing (k6 or Locust) for real-time queue flows and Redis-backed operations, with SLOs and percentile monitoring to detect regressions.
- Build test-infrastructure improvements for flaky behaviors: replace sleeps with conditional waits in frontend tests, add per-test retries and quarantine markers, and collect failure artifacts (logs/screenshots)
Repositories
The developer's experience in this domain has been verified based on AI analysis of the following repositories: