Open to backend engineering & R&D collaborations

Senior backend developer · Dhaka, Bangladesh

Abdullah Al Mohin Jaki

I architect the systems users never see—and businesses depend on.

Python, Django, DRF, and FastAPI engineering for secure APIs, scalable platforms, automation workflows, and production-grade data systems.

  • Python
  • Django
  • DRF
  • FastAPI
  • PostgreSQL
5+ years Professional experience
Backend first Architecture & APIs
Security aware Auth & data integrity
Abdullah Al Mohin Jaki, senior backend developer
Backend system architect Reliable by design.

Engineering focus

Scalable applications REST API engineering Authentication & authorization Data automation Performance optimization

01 / About

Backend depth.
Business clarity.

I build the technical foundations behind dependable digital products—from API contracts and access control to data models, background jobs, search, and deployment.

Professional summary

Production systems engineered for change.

With 5+ years of professional experience, I develop scalable web applications and production-grade backend systems using Python, Django, Django REST Framework, and FastAPI.

My work spans REST API engineering, backend architecture, authentication and authorization, database design, performance optimization, automation, R&D, and data processing. I approach each system with a focus on maintainability, security, and practical delivery.

Follow my experience

System thinking

Architecture, end to end

Resilient flow
01

5+ years of experience

Professional backend delivery across mature products and early-stage ventures.

02

Backend-first architecture

Clear boundaries, reusable components, durable data models, and maintainable code.

03

Secure API systems

Validation, JWT authentication, authorization, encryption concepts, and API security.

04

Data & automation

Search, scraping, queues, workflow automation, and data-processing platforms.

05

Production delivery

Testing, debugging, optimization, containerization, and deployment tooling.

02 / Capabilities

A stack built around
dependable systems.

Core backend tools are supported by practical experience across data, automation, deployment, security concepts, and frontend collaboration.

Core stack

Backend engineering

Frameworks and runtime tools used to shape application logic, APIs, and services.

  • Python
  • Django
  • Django REST Framework
  • FastAPI
  • Django ORM
  • GeoDjango
  • Wagtail CMS
Data layer

Databases & search

Transactional storage, caching, indexing, analytics, and query optimization.

  • PostgreSQL
  • MySQL
  • Redis
  • Elasticsearch
  • ClickHouse
  • MeiliSearch
  • MongoDB
  • ORM optimization
Workflows

Automation & scraping

Asynchronous work, scheduled processes, extraction, and connected AI workflows.

  • Celery
  • Scrapy
  • Selenium
  • Cron Jobs
  • n8n
  • AI workflow automation
System design

Architecture

Patterns for separating concerns, scaling workloads, and connecting services.

  • Microservices
  • Event-driven systems
  • API gateways
  • Async I/O
Delivery

DevOps & engineering tools

Practical tooling for version control, containers, web serving, CI, and team delivery.

  • Git
  • Docker
  • Kubernetes
  • Nginx
  • Gunicorn
  • GitHub Actions
  • Jira
  • Trello
  • MySQL Workbench
Security concepts

Security & systems

Identity, access, secure interfaces, and lower-level application concepts.

  • JWT authentication
  • API security
  • Penetration testing basics
  • Encryption
  • Decryption
  • Socket programming
  • Threading
Working familiarity

Frontend collaboration

Enough interface context to shape usable API contracts and collaborate across the stack.

  • HTML
  • CSS
  • Bootstrap
  • Tailwind CSS
  • JavaScript
  • React
  • Next.js
  • jQuery
  • Ajax

03 / Selected work

Systems with
real-world purpose.

Civic services, marketplaces, commerce, publishing, infrastructure intelligence, and protected enterprise backend work.

Three-sided marketplace Public project

Rest Space

A premium booking and reservation platform with Airbnb-inspired marketplace workflows, developed from the backend perspective.

  • DRF
  • JWT
  • PostgreSQL
  • Elasticsearch
  • Twilio
  • Cron Jobs
Delivery scope

Multi-party marketplace logic, reservations, identity, communication, scheduled work, and search.

Visit website
E-commerce API Public project

Spacium

Backend API development for the interior section of a UAE-focused e-commerce application.

  • Django
  • DRF
  • JWT
  • Celery
  • PostgreSQL
  • ORM
Delivery scope

Interior-section backend APIs, authenticated application flows, data models, and asynchronous tasks.

Visit website
Content platform Public project

Prevention Forward

An organizational website built with Django and Wagtail CMS, with a structured content-management architecture for editorial teams.

  • Django
  • Wagtail CMS
  • PostgreSQL
Delivery scope

CMS architecture, structured content models, publishing controls, and backend delivery.

Visit website
Infrastructure intelligence Production platform

ScanOps

Enterprise network scanning and infrastructure intelligence for controlled, auditable, and scalable asset discovery and monitoring workflows.

  • Network scanning
  • Asset discovery
  • Monitoring
  • Audit workflows
Platform scope

Infrastructure visibility, controlled scanning operations, asset intelligence, and auditable monitoring.

Visit website
Digital publishing Production platform

NationWire

A Django and Wagtail digital news portal supporting editorial publishing workflows, live coverage, multimedia journalism, SEO, and analytics.

  • Django
  • Wagtail CMS
  • Editorial CMS
  • SEO
  • Analytics
Platform scope

Editorial workflows, live-news coverage, multimedia publishing, discoverability, and measurement.

Visit website
Enterprise backend delivery NDA protected

Confidential enterprise projects

Approved capability areas from enterprise systems whose project names, clients, and implementation details remain confidential.

  • REST APIs
  • Data platforms
  • Automation
  • Elasticsearch
  • Secure auth
Approved capability scope
  • High-performance REST APIs
  • Data-processing platforms and automation systems
  • Scalable database architecture
  • Elasticsearch search systems
  • Secure authentication and authorization

Further technical context can be discussed during an interview where permitted.

04 / Experience

A career shaped by
hands-on delivery.

Experience across production Python systems, growing software teams, client requirements, and the formative constraints of an early-stage startup.

March 2021 January 2024

Celltron EMS

Senior Software Developer — Python Developer

Backend systems
  • Developed and maintained production backend systems with Python, Django, and Django REST Framework.
  • Designed secure REST APIs with validation, JWT authentication, and authorization controls.
  • Built and optimized PostgreSQL and MySQL data structures for scalable applications.
  • Created reusable backend components and improved performance through debugging, testing, and optimization.
  • Analyzed requirements and collaborated with clients and stakeholders throughout delivery.
April 2020 November 2020

Pakiza Technovation Limited

Junior Software Developer

Django development
  • Developed Django backend features and REST APIs for web applications.
  • Supported database design, application logic, and backend module implementation.
  • Participated in testing and debugging while maintaining code quality.
  • Worked with senior developers to improve application performance and delivery practices.
March 2016 November 2016

Early-stage startup venture

Software Developer — Startup Experience

Product foundation
  • Contributed to early-stage product planning and execution.
  • Developed backend functionality with PHP and the CodeIgniter framework.
  • Designed application logic and foundational database structures.
  • Gained practical experience working within startup constraints and evolving product requirements.

05 / Credentials

Foundations &
continued learning.

Formal education and certifications supporting a career built through practical engineering work.

Education

B.Sc. in Business & Information Technology

Daffodil Institute of IT

Certifications

  • 2020
    Python Intermediate CertificateHackerRank
  • 2016
    Web Application Development — PHPBITM
  • 2015
    PHP with CodeIgniter FrameworkBITM

06 / Contact

Let’s build the part
that has to work.

I’m open to conversations about backend engineering, secure API systems, platform architecture, automation, and research-led development.

Available for relevant engineering and R&D collaborations