Full-Stack Software Engineer with 3.5+ years of experience designing and delivering production systems end-to-end - from UI/UX planning and architecture through API design, deployment, and maintenance. Currently working across Flutter (mobile) and Django REST Framework (backend), owning system architecture, frontend direction, and technical planning on live projects rather than just execution.
Comfortable leading multi-project workstreams, planning UI/UX and frontend structure, making architecture and API design decisions, and mentoring engineers - with a strong grounding in scalable backend systems, CI/CD, and cloud infrastructure.
Core focus: System Architecture · UI/UX & Frontend Planning · Mobile + Backend Full-Stack Delivery · AI/LLM Integration · DevOps & CI/CD
Full-Stack Software Engineer — CodexCor IT
Dhaka, Bangladesh | September 2026 – Present
- Architecting and building a Flutter mobile application backed by a Django REST API, owning both the mobile and backend layers
- Planning UI/UX flow and frontend structure alongside backend architecture, ensuring design and API decisions stay aligned
- Designing API contracts, data models, and system architecture ahead of implementation - planning-first rather than build-first
- Making technical decisions on project structure, state management, and backend scalability as part of the core engineering team
- Working within a professional, process-driven delivery workflow - planning, architecture review, implementation, and iteration
Software Engineer — Zeron Group
Dhaka, Bangladesh | 2025 – August 2026
- Led multiple concurrent projects as technical lead
- Built a SaaS platform from the ground up for enterprise clients
- Delivered multiple e-commerce platforms, from concept to production launch
- Designed and built a full-scale internal CRM for Zeron Group's own office operations - the company's official, live system
- Integrated AI/LLM capabilities into production-grade applications
- Owned the full delivery lifecycle - design, development, testing, code review, deployment, and post-release iteration
- Managed DevOps workflows & CI/CD pipelines with Docker & GitHub Actions
- Mentored junior engineers and reviewed code across the team
Key Projects Delivered: SaaS Platform · Multiple E-Commerce Solutions · Internal Office CRM · Universal Translator App · AI Attendance System · Real-Time ConnectX Platform
Spotlight - Internal Office Management CRM (click to expand)
Built entirely in-house for Zeron Group's own daily operations - the company's official, live production system. (Private/internal project - no public link available.)
- 11 role-based access levels covering the full office hierarchy
- Integrated calling functionality directly into the workflow
- Built-in SMS notifications & alerts
- Salary & payroll management module
- Unified office management - attendance, tasks, communication & HR in one system
- Fully deployed and used live company-wide
Languages
Mobile Development
Backend & APIs
Frontend & Styling
AI & Machine Learning
Databases
DevOps, Deployment & Infrastructure
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Face Recognition · Django · OpenCV · Deep Learning Real-time AI-powered attendance management using facial recognition.
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WebRTC · Django Channels · WebSockets Communication platform with audio/video calls and real-time messaging.
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Google Translate API · Django · 100+ Languages Instant AI-powered translation across 100+ languages, cloud-deployed.
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Full-Stack · Payments · Admin Dashboard E-commerce solution with cart, product management, and order processing.
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View all projects → jahidhasanpiyesh.vercel.app/portfolio.html
(Note: this section still shows earlier projects - send over your latest/best work, including the current Flutter app, and I'll refresh this list.)
