Python · Backend · AWS
Mehedi Hasan Mim
Backend-focused Senior software engineer with 5+ years building scalable Python services across fintech, IoT, SaaS, and live-streaming domains — from system design and API architecture to Docker deployments and cloud integrations. Competitive programmer and ACM ICPC participant [Dhaka Regional].
Skills
Experience
Vivasoft Limited
Senior Software Engineer L-I
- Built scalable backend systems with user management, web scraping, and live data capture (1M+ events/day) from TikTok and Shopee via Redis-backed queues and AWS Fargate.
- Led R&D and system design for a self-hosted transcription and sentiment analysis pipeline using Whisper and CTranslate2, replacing managed cloud services.
- Processed 80TB+ of streaming data across encoding, merging, thumbnail creation, and audio comprehension pipelines using ffmpeg, AWS, and GCP.
- Dockerized 10+ applications with multi-stage builds; automated infrastructure provisioning via CloudFormation and migrated frontend admin to a CloudFront-hosted static site.
- Conducted feasibility analysis, translated product requirements into deliverables, and maintained 95% on-time delivery across cross-functional teams.
Inovace Technologies
Mobile Application Developer
- Built image-upload feature supporting camera and gallery with editing and compression across iOS and Android devices.
- Reduced time and memory complexity of the geo-location mobile punch feature by ~10% by replacing heavy recursive logic.
- Fixed bugs across leave policy, UI interfaces, scrolling views, and PDF/image download flows.
Confidential Projects
— sharing impact and technologies only, no client or codebase details.
Fintech Middleware — SFTP File Ingestion Pipeline
- Participated in solution design, requirements gathering, and load testing alongside experienced engineers; co-developed the full implementation with one other engineer.
- Built the file-ingestion service: pulling org-specific SFTP directories on a configurable schedule, downloading files to a persistent volume, and routing validated files into a pending processing queue.
- Implemented configurable retry logic and structured error archiving — routing rejected files into timestamped directories with the original file and granular diagnostic output.
Content Analytics System — Communication Engagement Metrics
- Sole developer — designed and implemented an end-to-end content analytics system from scratch under a senior tech lead; fully tested locally before the project was deprioritized.
- Researched session duration approaches across Umami, Plausible, and Openpanel to design a heartbeat-based event model that accurately computes per-content average view time without relying on page navigation signals.
- Built a BigQuery-backed analytics pipeline using multi-CTE aggregation across session events — covering views, unique reach, CTR, average view duration, and messaging tap metrics — and exposed results via a typed REST API for the merchant app.
Projects
Live commerce enablement platform spanning stream planning, real-time analytics, and competitor intelligence (LiveScope). Engineered the backend data capture pipeline handling 1M+ events/day from TikTok and Shopee, multi-language transcription using Whisper / CTranslate2, and subscription-gated insights with Stripe billing.
IoT water-consumption tracking system for organizations. Processes ~96,000 data points per day, calculates monetary compensation, and integrates Stripe for seamless subscription-based payments.
SaaS ticketing platform handling multi-org workflows — Department/Category/Priority routing, assigned-user resolution, and real-time live chat between customers and support agents.
Cloud-based HR mobile app for attendance, leave management, and QR-code enrollment. Admins oversee attendance across 100+ organizations; employees manage day-to-day HR activities from their device.
Personal project — a Chrome extension that silently tracks browsing time per domain and manually user can record referral contacts.
Education
Patuakhali Science and Technology University
B.Sc. in Computer Science and Engineering
Patuakhali, Bangladesh