Sylvester MainaSM
Open to opportunities

Sylvester Maina

@sylvestermaina

Aspiring data annotation specialist with a focus on machine learning.

Kenya
Message

What I'm looking for

I seek a role that fosters continuous learning and offers opportunities for professional growth while contributing to impactful projects.

I am a dedicated and self-driven data annotation specialist currently engaged in enhancing machine learning models through meticulous data annotation tasks. Since February 2024, I have successfully collaborated with cross-functional teams to streamline workflows, achieving a remarkable 30% increase in productivity. My commitment to quality has led to the successful completion of over 150 projects within a single year, showcasing my ability to work efficiently under pressure.

Prior to my current role, I worked as a transcriptionist and academic writer from June 2022 to January 2024, where I transcribed over 1,200 hours of audio content with a 98% accuracy rate. My efforts not only improved the accessibility of academic materials for a diverse audience but also contributed to over 20 publications in peer-reviewed journals, increasing citation frequency by 40%. I am passionate about continuous personal development and eager to contribute to organizational success through my skills and knowledge.

Experience

Work history, roles, and key accomplishments

EN
Current

Data Annotation Specialist

Engaged

Feb 2024 - Present (1 year 4 months)

Engaged in data annotation tasks to improve machine learning models. Collaborated with cross-functional teams to streamline workflows, enhancing productivity by 30%, enabling the successful completion of over 150 projects within a single year. Optimized data labeling processes by implementing advanced quality control measures, resulting in a 20% increase in annotation accuracy and reducing project

PE

Transcriptionist and Academic Writer

Performed

Jun 2022 - Jan 2024 (1 year 7 months)

Performed transcription and academic writing tasks. Transcribed over 1,200 hours of audio content with a 98% accuracy rate, enhancing the clarity and accessibility of academic materials for a diverse audience of over 500 students and researchers. Collaborated with faculty members to streamline the transcription process, reducing turnaround time by 30% while handling sensitive information from at l

Education

Degrees, certifications, and relevant coursework

MI

Milele Africa Institute

Diploma, Electrical and Electronics Engineering

Completed a comprehensive diploma program focusing on electrical and electronics engineering principles. Gained practical skills and theoretical knowledge essential for the field.

CS

Clay City Mixed Secondary School

Kenya Certificate of Secondary Education, General Studies

Achieved the Kenya Certificate of Secondary Education, demonstrating proficiency across various subjects. Developed foundational academic skills and knowledge.

KS

Kileleshwa Primary School

Kenya Certificate of Primary Education, General Studies

Obtained the Kenya Certificate of Primary Education, marking the completion of primary education. Built a strong educational foundation.

Tech stack

Software and tools used professionally

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