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    Sirajus Salayhin

    Sirajus Salayhin

    Data Engineer & Analytics | AWS & GCP | PySpark | BigQuery | Redshi...

    Dhaka, Bangladesh

    English speaking

    I focus on data warehousing, business intelligence, ETL/ELT, and API integrations. My work emphasizes reliability, efficiency, and simplicity. Previous assignments have involved...Read moreI focus on data warehousing, business intelligence, ETL/ELT, and API integrations. My work emphasizes reliability, efficiency, and simplicity. Previous assignments have involved most major databases including AWS Redshift and Google Big Query and programming languages including Python, SQL, Golang, Ruby, etc.

    DBA Activities - DB migrations, Backup & Recovery, Upgrades, Instance configurations, DB Monitoring, Horizontal scaling, Sharding with PostgreSQL extensions.

    Modeling of OLTP and Datawarehouse systems. It could be the design of the new schema, normalization/denormalization of existing model, Enterprise data warehouse design based on Snowflake and Star schema, Data Lake architectures.

    Data Processing: Pyspark, Pandas

    Cloud containerization and deployment: Docker, Kubernetes

    Back End Service: Python & Golang

    Cloud :
    - Cloud migrations (AWS, GCP)
    - Data Lake Design (AWS, GCP)
    - Athena
    - Airflow
    - Development & Administration of RDS/ GCP databases
    - Building Analytics Solutions in Amazon Redshift/Redshift Spectrum/ Google Bigquery: End-to-End BI implementations

      4.8
      (4)
      £50
      /hr
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    machine learningamazon web servicesdatabase developmentapache sparkback end developerbig datacloud computingdata analysisPython programming language
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    Industry expertise: Healthcare, Software, Technology and Transport

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    Mar 17 2023
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    machine learningamazon web servicesdatabase developmentapache sparkback end developerbig datacloud computingdata analysisPython programming language
    Top Endorsed
    Industry expertise: Healthcare, Software, Technology and Transport
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    One hour of paired programming
    • Danby Dan S.
    • Started: 4 Feb 2013
    • 14 Jun 2013 Dan S.
      Dan S.
      London, GB

      Hey, Sirajus, thanks for your help. Your input was much appreciated. Good luck with everything.

      Sirajus S.
      Sirajus S.

      Hi, Thanks for the feedback. Hope we can work more in future.

    Social network
    • Bosedeby Bosede D.
    • Posted: 20 Jun 2011
    • 0
    • 22 Jul 2011 Bosede D.
      Bosede D.
      London, GB

      Excellent work.

    • 05 Jul 2011 Bosede D.
      Bosede D.
      London, GB

      He has good skills and highly recommended.

    • Show more feedback (1)
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    • Posted: 18 Sep 2013
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