🔒 commercial.ecom.almeera.com.qa01
Commercial Retail Portal
Visit SiteCommercial hypermarket management portal. Real-time order management, multi-branch fulfillment metrics, sales telemetry, and catalog orchestration.
Retail OSOperationsEnterprise
badge
Full-Stack Software Engineer · High-Concurrency Systems
THINK IT.I'LL BUILD IT.
You imagine. I engineer. ✦
- Full-Stack Systems
- Retail OS & POS
- IoT Telemetry
- Real-Time Event Streams
- Distributed Backends
copy
I'm Fahad Khan, a full-stack software engineer. I build complete web platforms and the high-concurrency systems that run inside them - database to dashboard to the background pipelines doing the work - then harden the lot so it's still running long after the launch call.
things I’ve shipped
THE WORK
Shipped under my technical execution: real users, live hardware, and production scale.
🔒 almeera.com.qa (Wafa Loyalty)02
Wafa Loyalty Program
Visit SiteCustomer loyalty and rewards engine. Features multi-tier points accumulation, personalized offers, and instant barcode redemption at in-store checkout counters.
POS IntegrationGamificationFastify
🔒 vupop.io03
Vupop Sports Marketplace
Visit SiteSports video footage broadcasting marketplace. Engineered a custom monetization engine letting media companies purchase and export user-generated clips per second.
Video StreamingMicro-BillingSports Tech
🔒 pilot.aqarat.cowlar.com04
Aqarat PropTech Pilot
Visit SiteReal estate regulatory intelligence and market telemetry platform for Qatar's regulatory authority. Consolidated executive dashboards monitoring sales KPIs, rental contracts, mortgages, and municipal market metrics.
PropTechMarket IntelligenceReact / Node
🔒 boxtech.ai05
Boxtech AI Platform
Visit SiteSmart mobility, smart city, and IoT hardware telemetry suite. Powering possibilities through IoT with high-throughput device communication, sensor streaming, and fleet telemetry.
IoT SoftwareSmart MobilityHardware Telemetry
🔒 www.traccar.org06
Traccar Fleet Core
Visit SiteReal-time high-throughput GPS fleet tracking engine. Ingests live TCP/UDP telemetry streams with sub-second polygon geofencing alerts, geospatial event indexing, and live vehicle kinematics.
GeofencingTCP / UDP CoreGPS Telemetry
a little about me
WHAT I DO
about.gridstatement.txt
“
I build the unglamorous half that makes systems actually work.
Anyone can wire up a basic app and get a quick demo. The job is everything after that: real-time event sync, concurrency locks, hardware edge cases, retries, and knowing which problems shouldn't use complex layers at all. That is the part I like.
Fahad Khan
Full-Stack Software Engineer · SINCE 2021AVAILABLE NOW
statement.txtmetrics
10,000+
Concurrent users handled
99.9%
Production uptime
<1hr
Avg. response time
capabilities
Full-Stack SystemsRetail OS & POSIoT TelemetryReal-Time StreamsDistributed CacheHardware Edge Sync
running now
ingestok
routeok
cacheok
dispatchok
4 STAGES · 0 DROPPED PACKETS
stack
Currently building in
Next.js & Python
TypeScriptFastifyPostgreSQLRedis
certified
Verified credentials
✓COMSATS BSCS · 3.94 / 4.00 CGPA
✓Campus Gold Medalist
✓Institute Bronze Medalist
✓Meta Professional Certifications
4+ years engineering production systems
which one sounds like you?
THE SERVICES
SERVICES.DECK
pipeline.py✓ no problems
@schedule("*/15 * * * *")
def sync_orders():
docs = inbox.fetch(unread=True)
rows = extract(docs, Order)
ok, review = verify(rows, 0.8)
runs on a schedulehuman-in-the-loop
01
AI Automation that runs itself.
For teams where someone's whole morning disappears into copy-paste.
You already know which task is eating the week. I turn it into a pipeline that runs on a schedule, survives the messy cases, and tells you when it isn't sure, instead of guessing and getting it quietly wrong.
- ✓Someone re-types the same data between two systems every day
- ✓You tried a no-code tool and it broke on the first real edge case
- ✓The work is high-volume, boring, and expensive to get wrong
Workflow automationDocument extractionInbox & CRM agents
Discuss Architecturebilling.ts✓ no problems
export async function subscribe(org) {
const cus = await stripe.customers
.create({ orgId: org.id })
await db.org.update({
where: { id: org.id },
auth + billingmulti-tenant
02
SaaS Products end to end.
For founders who need the whole product, not another prototype.
Empty repo to paying users. Schema, API, front end, auth, billing and the AI layer on top, built by one person who holds the whole picture, so nothing falls down the gap between contractors.
- ✓You have the idea and the customers, but no engineering team yet
- ✓A previous build got 80% there and then stalled
- ✓You need something another developer can pick up later
Full-stack buildsAuth & multi-tenancyStripe billing
Discuss Architectureretrieve.ts✓ no problems
const hits = await index.query({
vector: await embed(question),
topK: 5,
// never cross tenants
filter: { tenant: org.id },
})
evals in CIsources cited
03
AI Agents & RAG you can trust.
For teams who've seen a great demo and don't trust it in production.
Retrieval and agents with evals from day one, so you know what they get wrong before your users do, and can prove it to whoever asks.
- ✓Your assistant is confidently wrong and nobody knows how often
- ✓You have documents nobody can actually find answers in
- ✓Someone asked "how do we know it won't say that again?"
RAG over your docsTool-calling agentsEval suites
Discuss Architecturehow it works
NO DECKS. NO DETOURS.
One thread, one build, zero bureaucracy.
# fahad × your-team2 online
thread.frame01 ARCHITECT & SCOPE
Y
Product LeadWe need an order routing system that can sync thousands of inventory updates across multiple retail branches without locking rows or crashing checkout.
F
FahadSend me the current DB schema and peak hourly volumes. I will design an event-driven Redis buffer to decouple checkout from inventory writes so the app never stalls.
🎯 Architecture approved in 24 hours
02 RAPID PROTOTYPE
F
Fahad · Day 4First end-to-end prototype is live on staging. Handling mock load of 5,000 simulated checkouts with sub-40ms latency.
03 HARDEN FOR PRODUCTION
F
Fahad · Week 2Added retry queues for edge-case offline devices, database connection pooling, and real-time monitoring alerts.
04 SHIP & MONITOR
F
Fahad · Week 3Deployed to production. Zero downtime, documentation handed over, telemetry alerts active. 🚀
Y
🎉 Flawless rollout.
// my clients
DON'T TAKE IT FROM ME
High-concurrency systems and production builds delivered for clients across the US, Dubai, and Qatar.
🇺🇸UNITED STATES
Streaming & Marketplaces
Sports video streaming marketplace (Vupop), dynamic per-second monetization engine, and high-throughput HLS delivery pipelines.
🇦🇪DUBAI, UAE
IoT Telemetry & Smart Mobility
Live vehicle kinematics telemetry, Traccar-based TCP/UDP listeners, and sub-second geofencing alerts for fleet operations.
🇶🇦QATAR
Retail OS & E-Commerce
Commercial retail hypermarket platforms, real-time inventory synchronization across multi-branch hubs, and POS integrations.
5.0repeat client
“He is such an exceptional, and solid worker. He exceeds expectations, is cooperative, and truly an expert at what he does!”
5.0repeat client
“Great experience working with this developer. Communication was clear, delivery was on time, and the final result matched exactly what I needed. Will work again.”
5.0repeat client
“The best! For sure! I am so happy with their work and keep going back and back. Thanks”
5.0
“Great experience. Recommended”
5.0repeat client
“Highly recommended.”
5.0repeat client
“Very talented and proactive engineer. Clear communication, fast turnaround, and delivers high quality work without back-and-forth.”
why engineering teams build with me
SAME BRIEF. DIFFERENT ENGINEER.
The measurable differences between agency hand-offs and senior execution.
Typical Agency / Freelancer
Fahad Khan
✕Scoped by an account manager, coded by junior contractors who rotate every month.
✓Direct engineer to engineer collaboration: I architect the system, write the core code, and own reliability.
✕Naive HTTP polling loops that exhaust server threads and fail under sudden customer surges.
✓True event-driven WebSocket, Pub/Sub, and distributed Redis streaming pipelines with sub-50ms latency.
✕"That edge case is out of scope or an infrastructure issue you will need someone else to fix."
✓I actively solve messy edge cases: dead-letter queues, idempotent workers, device reconnects, and failovers.
✕Throws oversized, expensive cloud clusters at unoptimized queries, ballooning your monthly infrastructure bill.
✓Profiles SQL indices, connection pooling, and in-memory caches to deliver lightning-fast speed on lean compute.
✕Leaves behind undocumented spaghetti code and disappears right after the final invoice.
✓Clean git history, automated CI/CD suites, clear API schemas, and a full handover walkthrough so your team can scale it.
how we start
NO DECKS. NO DETOURS. JUST THIS.
A transparent, disciplined framework to take your architecture from idea to production.
01
Architecture Review
30-MINUTE TECHNICAL CALL
We jump on a call to unpack your core challenge: concurrency limits, database bottlenecks, hardware edge sync, or building a new product from scratch. No sales pitch, just engineer to engineer.
✓ System audit·✓ Stack fit
02
Technical Blueprint
WRITTEN ARCHITECTURAL SPEC
Within 48 hours, you receive a concrete technical spec: database schema layouts, API contracts, concurrency models, and an honest milestone schedule. You see how it works before any code is merged.
✓ Database schema·✓ API contract
03
You Decide
ZERO LOCK-IN OR OBLIGATION
If our architectural philosophy aligns with your vision, we begin building. If not, the technical notes and recommendations are yours to keep. Zero fluff, zero pressure, complete clarity.
✓ Clear terms·✓ Full ownership
Operational Alignment
Frequently aligned parameters with engineering teams
01 / Timezone Active
Active across US PST/EST, Dubai GST, and Qatar AST. Synchronous communication via Slack, Discord, or Teams with daily commits.
02 / Code Ownership
100% full intellectual property transfer. You own all repos, documentation, Docker configs, and CI/CD pipelines from day one.
03 / Performance SLAs
Sub-50ms cache hits, sub-second live telemetry ingestion, resilient dead-letter queues, and zero data loss on unexpected hardware drops.
04 / Production Handoff
Complete developer walkthrough, architectural diagrams, typed API schemas, and deployment playbooks so your internal team runs smoothly.
FULL-STACK SOFTWARE ENGINEER◆HIGH-CONCURRENCY SYSTEMS◆REAL-TIME TELEMETRY◆AVAILABLE FOR COLLABORATION◆DISTRIBUTED ARCHITECTURE◆EVENT-DRIVEN BACKENDS◆IOT HARDWARE INTEGRATION◆LOW-LATENCY WEBSOCKETS◆FULL-STACK SOFTWARE ENGINEER◆HIGH-CONCURRENCY SYSTEMS◆REAL-TIME TELEMETRY◆AVAILABLE FOR COLLABORATION◆DISTRIBUTED ARCHITECTURE◆EVENT-DRIVEN BACKENDS◆IOT HARDWARE INTEGRATION◆LOW-LATENCY WEBSOCKETS◆
// HAVE A SYSTEM WORTH BUILDING?
LET’S BUILD IT.
Start a ConversationIslamabad, Pakistan · © 2026 Fahad Khan · made by hand, not by template