Faridul Reza Sagor — Starfleet Engineering Corps, Sylhet Sector

operations status · stardate > today

Active duty assignments.

inspired by nownownow.com

Shipping (warp 7)

Cutting RAG pipeline p95 latency in AskTuring's LangGraph orchestration
Designing a paywall + entitlements layer on top of Stripe — six pricing tiers, zero leaks
Hardening the file-management module for cold-start performance
Documenting system architecture in Mermaid (the diagrams nobody else wants to draw)

Reading & tinkering

Compiler internals — parsing, ASTs, the satisfying parts of CS
Async task queues — Celery vs custom Python schedulers in production
Chess (rating creeping up, slowly), Call of Duty, and a Voyager rewatch
Codeforces problems on Sunday mornings — 1,200+ solved and counting

REGISTRY · NCC-1729-FRS

U.S.S.
SYLHET

CONSTITUTION-CLASS · REFIT

"Programming is the hobby. Shipping is the job."

Captain

Faridul Reza Sagor

Chief Engineer

(also Faridul)

Commissioned

Stardate 2001.78

Home Port

Sylhet · UTC+6

Loadout

NestJS · FastAPI · LangGraph

Cruise Speed

Warp 7 (sustainable)

Max Crew

1,500+ concurrent

Standing Orders

Find the problem first.

service record · stardates 2020 → present

Where I've served.

Full record

Jul 2025 → present

AskTuring.ai remote · subspace

Backend & AI Engineer

Leading LangGraph RAG optimization. ~28% latency drop, ~15% accuracy gain, scaled SaaS to 1,500+ concurrent users without a hull breach.

LangGraphFastAPIStripePostHog

Apr 2024 → Jun 2025

Learnyx AI New York · remote

Software Engineer

Unity WebGL holodeck-runtime driven by AI stories, comic-book reader sharing the same character system, and the LitZone realtime fantasy-baseball backend.

Unity WebGLNestJSFastAPIWebSockets

Jan 2020 → Apr 2024

Freelance quadrants α–δ

Full-stack developer · Fiverr Level 2

Three years of repeat-business client work — Chrome extensions, automations, custom backends. New framework per away mission, tight deadlines, high signal.

Chrome ExtReactNodeFirebase

featured missions · classified: open

Mission highlights.

Full mission archive (48+)

M-01 / RAG · INFRA

AskTuring.ai — making RAG actually warp-fast

Led optimization of a LangGraph-orchestrated RAG pipeline: async task execution, parallelization, deduplication of compatible steps. Result: ~28% latency drop, ~15% accuracy gain across benchmarks, and a SaaS that holds steady at 1,500+ concurrent users without dropping out of warp.

LangGraphFastAPIPostgreSQLPostHogStripe

M-02 / HOLODECK · AI

Learnyx — holodeck stories that play themselves

Built a Unity WebGL runtime that consumes AI-generated stories, plus a comic-book reader that shares the same character system. Glued Unity ↔ React so the two halves of the app could actually talk to each other — no universal translator required.

Unity WebGLNestJSLangChainReact

M-03 / REALTIME

LitZone — fantasy baseball for cadets

Backend + critical frontend integrations for a kids' fantasy baseball league. The fun part: a realtime websocket draft room where leagues fill their rosters live. Shipped to the App Store with RevenueCat payments on Capacitor iOS — first contact, no casualties.

WebSocketsCapacitorRevenueCatCoolify

M-04 / HACKATHON · CITATION

Air Quality Map — DU ITVERSE 2023 winner

Real-time air quality and socio-economic data on an interactive map; you can compare two cities side-by-side. Won the Open API segment at DU ITVERSE 2023. Built in a weekend; still proud of the shaders.

Champion · 2023ReactOpen APIs

personnel file · short form

Engineer first. Tinkerer always.

Three years of full-stack work across React, NestJS, FastAPI, and a stack of cloud services I've mostly broken and re-built. I gravitate to the messy middle — where AI meets product, where queries get slow, where Unity has to talk to React, where a paywall has six pricing tiers and they all need to work.

Outside work: compilers, chess, and the kind of side projects that start with "what if I…" and end with an APK in someone's hands.

Full personnel file Open hailing frequencies

by the numbers

3+ yrs

Full-stack tour of duty

1.5k+

Concurrent users supported

1.2k+

Online-judge problems solved

28%

RAG latency reduction