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S
Samuel O.

Samuel O.

Senior Frontend Engineer

Nigeria flagLagos, Nigeria

Key Skills

Software

AWS SageMakerAWS SageMaker
MercorMercor
Google Cloud Vertex AIGoogle Cloud Vertex AI
DataloopDataloop

Top Subject Matter

Finance - Payment Processing & Fintech Infrastructure
AI/ML - RAG Pipelines & Agentic Systems
Software Engineering - Product & SaaS Development, Developer Tools & API Documentation

Top Data Types

3D Sensor3D Sensor
ImageImage
VideoVideo

Top Task Types

Evaluation/RatingEvaluation/Rating
Data CollectionData Collection
Fine-tuningFine-tuning
TranscriptionTranscription
Function CallingFunction Calling
Computer Programming/CodingComputer Programming/Coding
Text GenerationText Generation
SegmentationSegmentation
ClassificationClassification

Freelancer Overview

I am a Senior Software Engineer with 7+ years of experience building production-grade AI systems, including RAG pipelines, multi-agent orchestration, and human-in-the-loop workflows. I have hands-on experience designing and implementing AI training infrastructure at BudPay, where I built production RAG pipelines that process and retrieve structured data at scale. My open source project, RagRails, is a modular framework for building production-grade RAG pipelines covering ingestion, chunking, embedding, retrieval, and generation, giving me deep familiarity with the data preparation and pipeline stages that underpin AI training workflows. Beyond engineering, I bring strong technical writing and documentation skills, having authored comprehensive developer documentation and API references across multiple fintech platforms. This translates directly to AI training tasks requiring precise annotation guidelines, clear labeling logic, and structured data output. I hold dual AWS certifications and Anthropic Claude certifications, and I actively write about AI systems, agentic architectures, and cloud infrastructure. This means I understand not just how to build with AI, but how to think carefully about data quality, model behavior, and system reliability.

Education

L

Ladoke Akintola University of Technology

Bachelor of Technology, Civil Engineering

Bachelor of Technology
Not specified

Work History

B

BudPay

Senior Frontend Engineer

Lagos
2022 - Present
C

Cashonrails

Senior Frontend Engineer

Lagos
2024 - 2025