CV

Education, research, work experience, teaching, publications, and skills.

Contact Information

Name Rajan Saha Raju
Professional Title Researcher — Artificial Intelligence, Computational Biology, Spoken Language Processing
Email rajanrajusust@gmail.com
Location ICT Cell, Shahjalal University of Science and Technology, Sylhet, Sylhet 3114

Professional Summary

PhD applicant with research and industry experience spanning speech technology, computational biology, and software engineering. Author of Kingfisher (Bangla text normalization), VirusTaxo (viral taxonomic classification), and ProtSEC (protein sequence embedding).

Experience

  • 2024 - present

    Sylhet, Bangladesh

    Assistant Computer Programmer
    ICT Cell, Shahjalal University of Science and Technology
    • Core technical contributor of the online undergraduate admission portal
    • Responsible for the development and maintenance of all major software systems, including the official website, student portal, and result processing system
  • 2022 - 2024

    Sylhet, Bangladesh

    Assistant Network Engineer
    ICT Cell, Shahjalal University of Science and Technology
    • Administered authoritative DNS and maintained security of public-facing web servers
    • Evaluated and deployed fiber-to-the-home (FTTH) connectivity for campus residential buildings, supervising installation to extend wireless network coverage
  • 2021 - 2022

    Dhaka, Bangladesh

    Bioinformatician
    Child Health Research Foundation (CHRF)
    • Maintained the Nextstrain Bangladesh build for real-time tracking of SARS-CoV-2 evolution
    • Performed metagenomic data analysis, including quality control, read trimming, host DNA removal, assembly, gene prediction, taxonomic profiling, and functional annotation
  • 2020 - 2020

    Dhaka, Bangladesh

    Junior Software Engineer
    REVE Chat (Team: Machine Learning)
    • Designed and implemented a web crawler to collect data from diverse sources
    • Improved the accuracy of a chatbot by ~5% by implementing entity extraction, intent matching, and contextual analysis

Education

  • 2015 - 2019

    Sylhet, Bangladesh

    B.Sc.
    Shahjalal University of Science and Technology
    Computer Science & Engineering
    • Thesis: Bangla Text-to-Speech (TTS); Advisor: Prof. Mohammad Shahidur Rahman
    • Ranked 4th out of 65 students

Teaching

Awards

  • 2023
    Champion (National Level)
    AI For Bangla 2.0
  • 2018
    1st Runner-up
    10th National Undergraduate Mathematics Olympiad, Sylhet Region
  • 2018
    62nd place out of 296 teams (first quartile)
    ICPC Asia Dhaka Regional Contest
  • 2014
    Champion (Dhaka Division)
    National Creative Talent Hunt in Math and Computer
  • 2013
    Government Scholarship (General)
    Secondary School Certificate (SSC) Examination
  • 2010
    Government Scholarship (Talent Pool)
    Junior School Certificate (JSC) Examination

Publications

  • 2026
    Kingfisher: A hybrid LLM-augmented Bangla text normalization for enhanced text-to-speech
    Natural Language Processing Journal
  • 2022
    A Reinforcement-Learning-Based Model for Resilient Load Balancing in Hyperledger Fabric
    Processes
  • 2022
    VirusTaxo: Taxonomic classification of viruses from the genome sequence using k-mer enrichment
    Genomics
  • 2021
    Choice of assemblers has a critical impact on de novo assembly of SARS-CoV-2 genome and characterizing variants
    Briefings in Bioinformatics
  • 2021
    End-to-End Bangla Speech Synthesis
    International Conference on Science & Contemporary Technologies
  • 2020
    A Bangla Text-to-Speech System using Deep Neural Networks
    International Conference on Bangla Speech and Language Processing
  • 2025
    ProtSEC: Ultrafast Protein Sequence Embedding in Complex Space Using Fast Fourier Transform
    bioRxiv (preprint)

Professional Service

Open Source Software

Skills

Programming Languages (): Python3, R, C++, Java, Go, Bash, PHP
Bioinformatics (): BLAST, HMMER, MMseqs2, fastp, Megahit, SPAdes, samtools, Nextstrain
Libraries (): PyTorch, scikit-learn, pandas, Matplotlib, Tidyverse, SciPy, XGBoost
Databases (): MySQL, MongoDB, Vector DB (Milvus, Qdrant)
Web (): HTML, CSS, JavaScript, FastAPI, Laravel, Apache, Nginx
Networking Tools (): phpIPAM, Oxidized, LibreNMS, Cloudflare
Misc (): Git, Linux (Ubuntu, CentOS), Docker, LaTeX, Cloud (DigitalOcean, AWS)

Interests

Artificial Intelligence:
Computational Biology:
Spoken Language Processing: