Full-stackAvailable for new projects
Hi, I'm
Haziq Nazeer
SoftwareEngineer—building things for the web
I help startups and businesses ship production-grade backends, real-time features and AI-powered products — NestJS, FastAPI, Next.js, PostgreSQL and AWS. I've taken systems from idea to launch and tuned them to scale past hundreds of thousands of users. Available for freelance projects, contract work and MVP builds.
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Who I Am
About Me
I build secure, real-time and AI-powered backend and full-stack systems with NestJS, FastAPI, Next.js, PostgreSQL and AWS. Promoted from intern to Associate Software Engineer within a year, I care about shipping production systems that are reliable, scalable and well-engineered.
My focus is the backend — real-time pipelines, AI integrations, secure auth and clean data models — but I'm comfortable across the full stack. Whether it's a streaming inference pipeline or a rock-solid API, I care deeply about the craft. Currently open to relocating to Germany / the EU.
1+
Year Exp
6+
Projects
∞
Curiosity
🎓
B.Sc. Software Engineering
Core Skills
How I Can Help
What I Build For You
Productised services backed by real, shipped systems. Hire me for a focused build, an ongoing contract, or to rescue something that's outgrowing its codebase.
Production REST & real-time APIs
Backend & API Engineering
REST / WebSocket APIsAuth & RBACPostgres + Prisma/TypeORMRedis & queues
Ship AI features that actually hold up
AI & LLM Integration
Streaming chatVoice (Realtime / WebRTC)RAG & taggingVision & PDF analysis
Idea → deployed product
Full-Stack Web Apps & MVPs
Next.js / ReactEnd-to-end featuresAdmin dashboardsDeploy & CI/CD
Live features that stay up under load
Real-Time Systems
WebSockets / Socket.IOLive chat & voicePush (FCM)Presence & reconnection
Make a slow product fast
Performance & Scaling
DB indexing & query tuningRedis cache-asideKeyset paginationBullMQ/Celery jobs
Billing done right
Payments & Subscriptions
Stripe Checkout & BillingMulti-seat plansRevenueCat (mobile)Verified webhooks
What I Use
Tech Stack
Tools and technologies I work with daily to build production-ready applications.
Frontend
Backend
Databases
Real-time & Queues
AI APIs
Cloud & Tools
What I've Built
Featured Projects
Production systems I've built — full-stack platforms first, then the scalable backends behind them.
Full-stack
Full-stackFull-Stack Engineer
LinguaLeap
NestJSNext.jsTypeORMPostgreSQLOpenAI RealtimeSocket.IOStripeBullMQ
View case study
My Journey
Work Experience
Dec 2025 – Present
Associate Software Engineer
Sep 2025 – Dec 2025
Software Engineer Intern
Feb 2025 – May 2025
Software Engineer Intern
Client Words
What People Say
Real outcomes and honest collaboration — a few words from the people I've built for.
Verified
“Haziq rebuilt the real-time layer of our telehealth platform and the difference was night and day — consultations stopped dropping and the streaming felt instant. He owned the problem end to end and kept us in the loop the whole way.”
DR
Founder & CEO
Verified
“We needed AI features shipped fast but done properly. He handled the streaming, the provider fallbacks and the edge cases we hadn't even considered. Delivered ahead of schedule and the code was clean enough that our team could build on it.”
SB
Product Lead
Verified
“Our API was buckling as we grew. After his work on indexing, caching and pagination, response times dropped dramatically and stayed flat as traffic climbed. He genuinely understands how to build for scale, not just to make it work.”
ML
CTO
Verified
“Stripe billing with team seats and webhooks is the kind of thing that silently breaks and costs you money. Haziq set it up so it just works — verified webhooks, multi-seat invites, the lot. Zero billing incidents since launch.”
AK
Co-founder
Verified
“He took our idea and turned it into a deployed MVP we could put in front of investors. Full-stack, auth, dashboard, the works — and he was upfront about trade-offs instead of over-promising. Exactly what you want in a contractor.”
TH
Founder
Verified
“Reliable, communicative and seriously good at the hard backend problems. Our live chat and notifications run through infrastructure he built and it has been rock solid under load. I'd hire him again without hesitation.”
PN
Engineering Manager
Verified
“Haziq rebuilt the real-time layer of our telehealth platform and the difference was night and day — consultations stopped dropping and the streaming felt instant. He owned the problem end to end and kept us in the loop the whole way.”
DR
Founder & CEO
Verified
“We needed AI features shipped fast but done properly. He handled the streaming, the provider fallbacks and the edge cases we hadn't even considered. Delivered ahead of schedule and the code was clean enough that our team could build on it.”
SB
Product Lead
Verified
“Our API was buckling as we grew. After his work on indexing, caching and pagination, response times dropped dramatically and stayed flat as traffic climbed. He genuinely understands how to build for scale, not just to make it work.”
ML
CTO
Verified
“Stripe billing with team seats and webhooks is the kind of thing that silently breaks and costs you money. Haziq set it up so it just works — verified webhooks, multi-seat invites, the lot. Zero billing incidents since launch.”
AK
Co-founder
Verified
“He took our idea and turned it into a deployed MVP we could put in front of investors. Full-stack, auth, dashboard, the works — and he was upfront about trade-offs instead of over-promising. Exactly what you want in a contractor.”
TH
Founder
Verified
“Reliable, communicative and seriously good at the hard backend problems. Our live chat and notifications run through infrastructure he built and it has been rock solid under load. I'd hire him again without hesitation.”
PN
Engineering Manager
Say Hello
Get In Touch
Have a project in mind, a question, or just want to say hi? My inbox is always open.