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Portrait of Mrityunjoy Das

Mrityunjoy Das

Dhaka, Bangladesh

I don't just ship code. I make slow systems fast and fragile ones dependable.

9+ years of backend and data engineering — now designing agentic workflows and coaching a team at Cefalo to build better agent architecture.

faster data pipelines at Cefalo
75%faster data pipelinesCefalo
better response times at Brainstation-23
60%better response timesBrainstation-23
shorter container builds at Cefalo
50%shorter container buildsCefalo
improved search accuracy at InfoSapex
42%improved search accuracyInfoSapex

Most of the work I'm proud of started as someone else's bottleneck. A pipeline that took too long, a service that fell over under load, a search that never found anything. I dig into why, then fix the cause rather than the symptom — usually in Python, across FastAPI and Django services, Prefect workflows, and Dockerised deployments on AWS.

Lately that same instinct has gone into agentic systems: designing workflows where LLMs do real work reliably, and coaching engineers at Cefalo on how to architect them so they hold up in production rather than only in a demo.

Download résumé (PDF)mjoyshuvo@gmail.comLinkedInGitHub+8801671567068

Experience

  1. Cefalo · Staff Software Engineer

    – PresentDhaka, Bangladesh

    • Working as a Data Engineer for a Norwegian client named Greenfact.
    • Successfully reduced data processing time by 75% on some pipelines by using multiprocessing and optimizing code.
    • Optimized Dockerfile that reduced build time to 50%.
    • Built different data pipelines using ETL.
    • Serving as an AI coach, guiding a team to improve their agentic architecture and adopt agentic workflows that hold up in production.

  2. Brainstation-23 · Senior Software Engineer

    – Dhaka, Bangladesh

    • Worked for a Norwegian client Ferdia to build a microservice and multi-tenant architecture-based web application.
    • Led a team of 8 developers to write scalable code for a bus booking platform.
    • Communicated with cross-functional teams regarding product and design.
    • Optimized system performance by 50% using query optimization throughout the system.
    • Implemented a caching mechanism using Redis, which increased performance by almost 60% in some cases.

  3. ADN Diginet Limited · Senior Software Engineer

    – Dhaka, Bangladesh

    • Guided the product development team of 5 to achieve goals.
    • Took part in system design for projects with the developer team and feature planning with the business team.
    • Implemented SSO using Keycloak in a microservice-based architecture.
    • Wrote Dockerfile for containerization of different services.
    • Built various RestAPI implementations using FastAPI and Flask.
    • Designed and implemented a billing module for a CRM project.
    • Configured a report module using Apache Superset.
    • Built a lead generation module using Facebook marketing API.
    • Helped the team and individuals to learn better code management, linting, and version controlling.

  4. InfoSapex Limited · Senior Software Engineer

    – Dhaka, Bangladesh

    Joined as an Intern

    • Worked on different projects like Document Management System, Online Booking Platform, and Brac TBCP.
    • Successfully implemented ElasticSearch that improved search functionality by 42%.
    • Implemented Celery and CeleryBeat for asynchronous tasks.
    • Developed features in web applications using Django that was used by some top corporates in Bangladesh.
    • Worked on a mobile app to make new features using Flutter.
    • Optimized jQuery code that improved loading time by 20%.

Skills

Languages & Frameworks

  • Python
  • Django
  • FastAPI
  • Flask
  • jQuery
  • Flutter

AI & Agentic Systems

  • Agentic Workflows
  • LLM Integration
  • Agent Architecture
  • AI Coaching

Data & Messaging

  • ETL
  • Prefect
  • Celery
  • Elastic Search
  • Apache Superset

Infrastructure & Cloud

  • Docker
  • AWS Lambda
  • Keycloak
  • CI/CD
  • Microservices

Datastores

  • PostgreSQL
  • MySQL
  • MongoDB
  • Redis

Tooling

  • Git
  • Jira

Education

Get in touch

I'm always happy to talk about backend architecture, data pipelines, or interesting engineering problems. The fastest way to reach me is email.