Md. Mainul Hasan

Results-driven data specialist and researcher with proven expertise in data annotation, quality assurance, and AI model evaluation. Currently pursuing Master's degree in Computer Science & Engineering. Strong analytical mindset backed by hands-on research experience including AI/ML applications, dataset evaluation, and model benchmarking.

Experienced in international remote collaboration and maintaining high-quality standards across diverse AI/LLM projects. Proven track record as Top Rated Seller on Upwork and Level 2 Seller on Fiverr.

Fluent

English communication and interdisciplinary problem-solving capabilities. Access to MacBook Air M-series devices for specialized tasks.

Data Annotator – Bengali Expert (Aether Project) - Outlier

(2025-06)

• Compare and evaluate performance of different AI models, identifying strengths and weaknesses in Bengali language processing tasks.
• Provide detailed analysis and recommendations on model improvements, documenting issues and proposing solutions for platform enhancement.
• Generate high-quality evaluation materials and research questions to improve model training and performance benchmarking.

Data Annotator - Minddrift

(2025-12)

• Annotate and label diverse datasets including text, audio, and structured data to support LLM training pipelines.
• Perform quality checks on annotated data to ensure accuracy, consistency, and completeness against project guidelines.
• Review and validate outputs from other annotators, flagging inconsistencies and providing corrective feedback.
• Collaborate with team leads via Slack and Discord to align on annotation standards and project updates.

Data Evaluator - DynamicFlow IT

(2024 - 2024)

• Reviewed and evaluated datasets created by data entry teams, ensuring accuracy and structural integrity.
• Conducted systematic quality checks to identify errors, inconsistencies, and duplicate entries in customer data.
• Maintained data quality standards by correcting anomalies and documenting recurring patterns for process improvement.

International Telesales Executive - Call Point Business Solution

(2022 - 2023)

• Conducted outbound sales calls to international clients in the United States, promoting digital services and solutions.
• Communicated complex service offerings clearly in English, maintaining professional and persuasive communication.
• Met and exceeded individual sales targets through consistent follow-up and strong product knowledge.

Project Manager – Software Development - Impact Designs UK - Remote

(2021 - 2022)

• Oversaw the full software development lifecycle, coordinating between design, development, and QA teams.
• Managed project timelines, budgets, and resource allocation to ensure on-time delivery.
• Tracked and reported project progress to stakeholders, maintaining clear and structured communication.

Web Developer & UI/UX Designer - Nexus Innovation Labs

(2019 - 2021)

• Designed and developed responsive web interfaces using modern frameworks, focusing on user experience and performance optimization.
• Collaborated with research teams to translate complex data requirements into intuitive UI/UX designs for data-driven applications.
• Implemented accessibility standards and conducted user testing to enhance application usability and engagement.
• Contributed to technical documentation and knowledge sharing within the research-focused development environment.

POS Executive - Shwapno – ACI Logistics Ltd

(2019 - 2019)

• Processed customer transactions accurately using point-of-sale systems, managing cash and digital payment methods.
• Verified and reconciled daily cash data, ensuring zero discrepancy in transaction records.

Master of Science - Computer Science and Engineering - University of Scholars (2026)

Bachelor of Science - Computer Science and Engineering - University of Scholars (2025)

Higher Secondary Certificate - Bikalpa Model College (2020)

Secondary School Certificate - Sena Palli High School (2018)