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Dependable Full Stack Developer / Finland

AHSANHABIB

Portrait of Ahsan Habib
Dependable Full-Stack Developer

A backend-focused dependable full-stack software developer with experience building web applications, APIs, AI-enabled automation, microservice-based/full-stack systems, and integration-heavy products.

StackDjango / Laravel / Node.js / Phoenix
FrontendReact / Next.js
APIsREST / GraphQL / FastAPI
AI/LLMRAG / Workflows
SQLPostgres / MySQL
StreamsRedis / Kafka
SystemsMicroservices / WebSocket / SFU
DevOpsDocker / CI/CD

Profile / 1.5

I build scalable web systems that connect products, APIs, AI and automation.

Full-stack web, AI/LLM and real-time systems — Django, Laravel, Node.js, Phoenix, React, APIs, microservices, Docker and scalable architecture for teams in Finland, Europe and remote.

Current base

Joensuu, Finland

Authorized for full-time work in Finland/EU; open to remote, hybrid or on-site backend roles.

Freelance signal

Top Rated

Upwork freelancer with 100% Job Success across backend, full-stack, AI/LLM integration and web-scraping work.

Technical Orbit / 02

Microservices, AI workflows and real-time game systems.

Tech
Stack
AI + SCALE
Backend SystemsDjango · Laravel · Node.js · Phoenix
AI integrationOpenAI API · NLP workflows
ArchitectureMicroservices · API Gateway · Redis
Real-timeWebSocket · LiveKit SFU · Game engine
DeliveryDocker · Azure DevOps · VPS
Product layerReact · JavaScript · Tailwind CSS

Career Trajectory / 03

Experience shaped by products, systems and delivery.

Software Developer, Freelance

Upwork

Deliver scalable systems, AI/LLM integration and web-scraping projects as a Top Rated freelancer with 100% Job Success.

Backend / Real-time Systems

Matrix Bingo

Developing the backend game engine, WebSocket events and LiveKit SFU video-calling setup for a scale-oriented real-time multiplayer bingo platform.

Backend Developer

Tovari Oy - Joensuu, Finland

Integrated Express.js backend services with Screaming Frog SEO Spider and the OpenAI API while working within Finnish engineering culture (short-term/part of the govt. training program).

Software Engineer

Interlink Techsoft Ltd

Contributed to Python, Django and Express.js microservices for a public library management system serving 60+ district branches, plus modules for a government archive platform.

Delivery Signal / 03.5

Proof points from shipped systems and client work.

100%

Job Success

Upwork Top Rated track record across backend, full-stack and AI integration engagements.

4+

Years in Production

Building backend and full-stack systems since 2022 — from microservices to real-time platforms.

15+

Shipped Systems

Real-time multiplayer, AI automation, public-sector and live web platforms delivered to production.

10+

Production Technologies

Django, Node.js, Phoenix, Redis, Docker, WebSocket, LiveKit SFU and OpenAI across shipped work.

Developed System / 04

Products, platforms and integrations across web, AI, real-time and public-sector systems.

Enter project archive

Build Rhythm / 04.5

How complex systems move from brief to production.

  1. 01

    Discovery

    Map requirements, constraints and the real problem behind the brief before touching architecture.

  2. 02

    Architecture

    Define service boundaries, data flow, caching strategy and failure modes with clear contracts.

  3. 03

    Build

    Ship incremental backend paths with migrations, API tests and maintainable domain logic.

  4. 04

    Deploy

    Docker, CI/CD pipelines and operational headroom so systems stay reliable in production.

Engineering Range / 05

Production Systems in Motion

The architecture, backend, AI and realtime patterns behind my strongest production work.

01system design

System Design

Turning product requirements into service boundaries, data flow and failure-aware architecture before implementation starts.

Service MapsData FlowCapacityFailure Modes

Architecture mapped before implementation

02microservice

Microservice Architecture

Designing API Gateway-led systems where separate Django, Python and Express.js services communicate cleanly.

API Gateway5 ServicesContractsIsolation

Independent services with explicit contracts

03scalable

Scalable System Development

Building backend paths with indexing, caching, queues and operational headroom for branch networks and real-time products.

CacheQueuesIndexesThroughput

Capacity and failure paths designed in

04backend

Backend Development

Python, Django, DRF and Express.js services with clear domain logic, database migrations and maintainable APIs.

DjangoDRFExpressPostgreSQL

Production APIs with maintainable domain logic

05ai

AI Integration

Connecting OpenAI-powered workflows to real backend systems, including SEO automation and structured service integrations.

OpenAIAutomationExpressWorkflows

AI workflows connected to operational systems

06websocket

WebSocket / Realtime

Designing low-latency event channels, room state and presence flows for multiplayer and live product experiences.

WebSocketRoomsState SyncPresence

Low-latency state shared across live rooms

07docker

CI/CD + Docker

Packaging services into reproducible environments with Docker, Azure DevOps pipelines and VPS deployments.

DockerAzure DevOpsVPSRollouts

Reproducible delivery from build to rollout

08livekit

LiveKit SFU / Game Dev

Combining LiveKit SFU video rooms with backend game-engine logic for real-time multiplayer platforms like Matrix Bingo.

LiveKitSFUGame EngineMultiplayer

Realtime media coordinated with game state

Partnership Modes / 05.5

Ways to work together on backend, AI and real-time products.

01

Backend Engineering Roles

Full-time or contract positions building Django, Node.js or microservice backends for product teams in Finland, Europe or remote.

02

Freelance & Contract Delivery

Scoped Upwork engagements for backend APIs, integrations, automation and full-stack delivery with clear milestones.

03

AI Integration Projects

Connecting OpenAI and workflow automation to real backend systems — SEO pipelines, structured service layers and ops-ready flows.

04

Real-time Product Engineering

WebSocket event channels, LiveKit SFU rooms and backend game-engine logic for multiplayer and live experiences.

Common questions

What kind of backend roles am I open to?

Backend-focused full-stack and AI integration roles — Python/Django, Node.js, microservices, real-time systems and integration-heavy products in Finland, Europe or strong remote teams.

Do I work as a freelancer?

Yes. I'm a Top Rated Upwork freelancer with 100% Job Success, delivering backend, full-stack, AI/LLM integration and web-scraping projects for international clients.

What technologies appear most often in my work?

Django, Express.js, Node.js, React, PostgreSQL, Redis, Docker, WebSocket, LiveKit SFU, OpenAI API integrations and API Gateway-led microservice architectures.

Where am I based and authorized to work?

I'm based in Joensuu, Finland, with authorization for full-time work in Finland and the EU. Open to remote, hybrid or on-site arrangements.

Open Channel / 05

Let's build backend systems that can scale.

Open to backend, Python/Django, integration, real-time product and applied-AI engineering roles in Finland, Europe or strong remote teams.