who i am
I am Biswajit Saraf, a Senior Developer focusing on crafting exceptional digital systems for 3.5+ years.
My passion is removing the barrier between intricate code engineering and breathtaking visual presentation. During my journey, I discovered that building great apps is more than just writing code; it's about engineering solutions that withstand scale, performance bottlenecks, and changing design paradigms.
By specializing in React Native, full-stack Node.js, and container-driven deployments, I build products that feel immediate to the touch, load in milliseconds, and support millions of interactions smoothly. This means zero junk frames, offline availability, safe data caching, and scalable REST/GraphQL endpoints.
Deliver high-fidelity cross-platform architectures that match the beauty of Apple software with the raw scale of modern cloud frameworks.
Architecting high-performance iOS & Android applications with native code execution, custom bridge modules, and fluid gesture systems.
Building highly-scalable web architectures utilizing Node.js, NestJS, Supabase, and Postgres with deep indexing and optimized APIs.
Overhauling sluggish render threads. Resolving thread locks, optimizing memory, asset streaming pipelines, and bundle size reduction.
Creating modular state managers, reliable offline configurations, automated EAS builds, and robust CI/CD code deployments.
Answer a few short questions about what you want to build. I'll come back within 24 hours with a project architecture — no forms to guess at, and no numbers pulled out of the air.
Pick the closest fit — we can refine it as we go.
Category: native
I write the iOS half of a TurboModule in Swift: an @objc bridging header over a Swift implementation, work pushed onto a dedicated DispatchQueue and results resolved back through the JSI promise so the JS thread never blocks.
Live telemetry analysis
Reconciliation Latency under 4ms
Grade A+
< 5 ms
Rather than writing casual components, my code strictly separates application view layers from business operations. State persistence triggers background tasks gracefully under garbage collection safety rules, matching strict memory footprints perfectly.
$ cat experience_history.json | query_details
RESOLVED AT PROPELIUS TECHNOLOGY // LATENCY OPTIMIZED
Drug test results captured and verified on the device
Scans a test device's QR code, records the result with automatic video capture for verification, and files it as a digitally verified record instead of paperwork.
AI study and exam preparation
A study app that turns course material into revision — published on Google Play as Lectra: AI Study & Exam Prep.
Point your phone at the sky and read it
A stargazing app that maps what is overhead — constellations, the Milky Way and the Messier catalogue — alongside the Indian astronomical framework of Nakshatras, Grahas and Rashis.
Renting, paying and reporting from one app
The tenant side of a real-estate platform: onboarding, lease documents, rent payment through Stripe, and a way to report a problem in the flat without phoning anyone.
Portfolio, tenancies and approvals for managers
The manager side of the same platform: properties and units, tenancy lifecycle, document handling and approval of the requests coming in from tenants.
The job queue for people doing the repairs
The third app in the platform, built for maintenance staff: assigned jobs, media capture on site, and status updates that close the loop back to the tenant.
The compliance console behind the scanner
The browser side of the same product: where individuals and drug-testing companies review stored results, manage donors, and pull audit-ready documentation.
Live market prices and movement at a glance
A web dashboard for following cryptocurrency prices — live values, movement over time, and the charts to read a trend rather than a single number.
Apps Shipped
App Store & Play Store
Cross-platform mobile apps developed, reviewed, and published globally.
Active Core Reach
Mobile Dispatches
Combined multi-tenant user bases actively interacting with shipped architectures.
Performance Render Leap
Frames Per Second Speedup
Successfully overhauled native memory pools to sustain smooth 60fps renders.
Client Approvals
Target Completion Rate
High client satisfaction rate completing requirements exactly within budget.
“We needed the app in front of students, not perfect. He shipped it to Play Store on the timeline we set and stayed on afterwards to smooth the rough edges we found in the wild. Straightforward to work with, and honest when something was going to take longer.”
“Layering the Nakshatra and Rashi system onto a live sky map without breaking the existing star rendering was harder than it sounds. He worked through the sensor and OpenGL side patiently and got it onto both stores.”
“A small dashboard build, handled well. Live pricing, readable charts and a deploy that has not needed touching since. He asked the right questions up front and then simply delivered it.”
“Biswajit built all three of our apps — tenant, property manager and maintenance — off one shared foundation. What sold me was that a fix to lease handling landed in every app at once instead of three times. He owned the whole mobile frontend and never needed the spec explained twice.”
“Our managers work the maintenance queue every day and it has not fought them once. Role permissions behave, the tenant sees a status change immediately, and the Stripe rent state matches the ledger — which is the part I was most worried about going in.”
Mail, WhatsApp or a call — whichever you prefer. Or map the build out first in the project brief assistant above and send that instead. Everything reaches the same inbox.
SYSTEM CORE NETWORKS:
