Available to hire
Hi, I’m Arunav Roy Chowdhury, a Data & AI Engineer based in Riga, Latvia. I build data pipelines, AI-powered document understanding solutions, and scalable deployments that improve efficiency and support sustainability goals. I enjoy collaborating with cross-functional teams to turn messy data into actionable insights and robust products.
Over the years I’ve shipped projects across Europe and the UAE, focusing on data engineering, model deployment, and QA. I’m passionate about clean data, scalable architectures, and clear technical documentation that helps teams work effectively and deliver measurable impact.
Language
English
Fluent
Latvian
Intermediate
Hindi
Fluent
Arabic
Beginner
Bengali
Fluent
Work Experience
Data & AI Engineer at IA HOT CODE (Piche)
September 1, 2023 - PresentImplemented DONUT (OCR-free Document Understanding Transformer) to extract data from invoice images, automating over 300 manhours monthly and supporting a paperless invoicing pipeline; built end-to-end data preprocessing, train/test/validation splits, and metadata generation; containerized deployment with Docker; datasets curation; RabbitMQ integration for seamless data transformation and AI model execution; collaborated with cross-functional teams and maintained Git/GitHub codebase; performed QA to ensure robust deployment. Impact: drove sustainability by reducing printed invoices and accelerating operations.
Data Engineer at ACCENTURE – BALTICS
October 1, 2022 - May 1, 2023Orchestrated data pipelines using Airflow, Kafka, Python, Apache Parquet/SQL on Linux; consolidated cloud and on-prem sources into unified destinations for analytics; implemented GDPR and ISO27001 practices for data handling; authored technical docs and unit tests; collaborated with teams using Kanban, Jira, Confluence, and Bitbucket; performed data preprocessing and cleaning using Python/bash scripts; contributed to pitching for key clients to Accenture UK.
Junior C# & Reporting Developer at UNITED KINGDOM INTL QUALIFICATIONS LTD, U.K
August 1, 2020 - September 1, 2021Analyzed and implemented business process automation using C#.NET (e.g., Outlook integration); built and maintained data reports; developed visuals and dashboards; documented bugs and health of web pages; assisted non-technical staff; contributed to improved data parsing efficiency and reporting.
IT Technical Assistant at BULKY.AE E-COMMERCE LLC, DUBAI, UAE
June 1, 2019 - July 1, 2020Managed and operated Magento ERP platform; provided technical assistance to end users; created development documentation; performed website testing on Magento platform; created small ads and supported meetings scheduling; contributed to pricing protocol improvements increasing profit margins by 15%.
Data Analyst Assistant at CAMPUSBEES PTE. LTD. SINGAPORE | Dubai, UAE
September 1, 2019 - January 1, 2020Website & Android app testing, bug identification and documentation; onboarding coordination; web scraping, data collection and MIS reports in Power BI; MIS Reports development.
Data & AI Engineer at SIA HOT CODE (Piche)
September 1, 2023 - PresentLed end-to-end LLM-powered document extraction using DONUT to automate invoice data capture, saving over 300 man-hours monthly and driving paperless invoicing aligned with sustainability goals. Built preprocessing, train/test/validation pipelines, and metadata generation; containerized deployment with Docker; orchestrated data flow with RabbitMQ and AI model execution; curated training data; performed QA; collaborated with cross-functional teams; maintained code in GitHub.
Data Engineer, Python at Accenture Baltics
October 1, 2022 - May 31, 2023Designed scalable data pipelines with Airflow, Kafka, Python, Apache Spark, Parquet and SQL on Linux; consolidated cloud and on‑prem sources into unified destinations for analytics and reporting. Implemented GDPR and ISO27001 data handling practices; authored technical docs and unit tests; collaborated with Jira/Confluence-based teams; performed data preprocessing and cleaning.
Junior C# & Reporting Developer at United Kingdom Intl Qualifications Ltd
August 1, 2020 - September 30, 2021Analyzed and automated business processes with C#.NET (e.g., Outlook integration); gathered and reported data from multiple sources using Power BI; created bug reports and health documentation; developed customised data parsing utilities that improved efficiency and support for non-technical staff.
IT Technical Assistant at Bulky.AE E-Commerce LLC
June 1, 2019 - July 31, 2020Managed and operated the Magento ERP platform; provided technical end-user support; authored platform documentation; contributed to pricing protocol updates that increased margins by ~15% and improved customer satisfaction.
Data Analyst Assistant at CampusBees Pte. Ltd.
September 1, 2019 - January 31, 2020Website & app testing, web scraping and MIS reporting; onboarding coordination; data collection and analytics; helped secure two university clients to extend offers for graduates.
Education
Master’s Degree in Computer Systems at Riga Technical University, Riga, Latvia
January 1, 2021 - January 1, 2023Bachelor’s Degree in Computer Science at Birla Institute of Technology University, Mesra, Ranchi, India
January 1, 2016 - January 1, 2019Master’s Degree in Computer Systems at Riga Technical University, Riga, Latvia
January 1, 2021 - December 31, 2023Bachelor’s Degree in Computer Science at Birla Institute of Technology, Mesra, Ranchi, India
January 1, 2016 - December 31, 2019Qualifications
IBM Certified Big Data Engineer
January 11, 2030 - January 5, 2026Snowflake Certifications in Data Engineering, Data warehousing & Data Lakes
January 11, 2030 - January 5, 2026Accenture Bootcamp Big Data Engineering & Data Modelling
January 11, 2030 - January 5, 2026Google Cloud Platform Basics - Skillsoft
January 11, 2030 - January 5, 2026IELTS (International English Language Testing System) - C1-C2
January 11, 2030 - January 5, 2026Latvian Language Proficiency Examination by the Latvian Government – A2
January 11, 2030 - January 5, 2026Latvian cultural award certificate by Latvijas Laikmetīgās Mākslas Centrs
January 11, 2030 - January 5, 2026Youth Pass Erasmus - Small-scale partnership GESW e.V -Vlotho, Germany
January 11, 2030 - January 5, 2026Introduction to RISC-V (LFD110)
January 11, 2030 - January 5, 2026Accenture Bootcamp Big Data Engineering & Data Modelling
January 11, 2030 - January 5, 2026IBM Certified Big Data Engineer
January 11, 2030 - January 5, 2026Snowflake Certifications in Data Engineering, Data warehousing & Data Lakes
January 11, 2030 - January 5, 2026Google Cloud Platform Basics
January 11, 2030 - January 5, 2026IELTS (C1-C2)
January 11, 2030 - January 5, 2026Latvian Language Proficiency Examination (A2)
January 11, 2030 - January 5, 2026Latvian cultural award certificate
January 11, 2030 - January 5, 2026Youth Pass Erasmus - Small-scale partnership
January 11, 2030 - January 5, 2026Industry Experience
Software & Internet, Professional Services, Education, Other
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