Samuel Shittu

Samuel Shittu

Freelance Automation & AI Specialist | Prompt Engineering, AI Data Annotation, n8n

Lagos, NG.

About

Multidisciplinary tech professional with a BSc in Computer Science, Samuel Shittu excels at the intersection of AI training, intelligent automation, and software engineering. He delivers high-quality data annotation, prompt engineering, and model evaluation for AI platforms, alongside designing and deploying custom automation workflows that eliminate manual work and enhance system security. Leveraging expertise in LLMs, multimodal AI, and robust automation tools, Samuel consistently drives efficiency and innovation for both AI research teams and diverse business clients.

Work

Outlier

|

AI Trainer & Data Annotator

Lagos, Lagos State, Nigeria

→

Summary

As a freelance AI Trainer and Data Annotator, Samuel contributes to the development and evaluation of large language models and multimodal AI systems for leading platforms including Outlier, micro1, and Multimango.

Highlights

Developed complex, high-quality prompts across coding, reasoning, and domain-specific tasks, significantly improving AI model performance and robustness.

Evaluated and ranked AI-generated outputs based on accuracy, helpfulness, coherence, and instruction-following, directly contributing to model refinement.

Performed precise data annotation for text, image, and multimodal data, including referring expressions, object grounding, and video segmentation, enhancing AI training datasets.

Designed structured scoring rubrics for consistent model benchmarking, ensuring objective and standardized evaluation processes.

Identified critical failure modes and ambiguous scenarios through edge case testing, leading to improved AI response quality and reliability.

Self-Employed

|

Freelance Workflow Automation Specialist

Lagos, Lagos State, Nigeria

→

Summary

As a Freelance Workflow Automation Specialist, Samuel designs and builds custom automation workflows for small businesses and NGOs, eliminating manual processes and integrating diverse tools.

Highlights

Automated key NGO operations, including donor emails, volunteer coordination, impact reporting, and CRM syncing, allowing teams to focus on mission-critical activities.

Implemented business automation solutions for invoicing, lead capture, email sequences, and order processing, streamlining client operations and improving efficiency.

Designed and deployed automated onboarding flows that trigger on signup, create records, and notify teams, enhancing user experience and internal communication.

Integrated 50+ applications via Make.com, n8n, Zapier, and REST APIs, eliminating manual data transfer and ensuring seamless tool connectivity.

Delivered reliable automated pipelines for small businesses, reducing manual work hours, minimizing errors, and cutting operational costs.

Upwork

|

Freelance Web & Software Developer

Lagos, Lagos State, Nigeria

→

Summary

As a freelance IT Specialist on Upwork and Fiverr, Samuel delivers comprehensive web development, software engineering, and app development solutions to clients across various industries.

Highlights

Developed responsive, fast, and functional websites using HTML, CSS, JavaScript, and modern frameworks, precisely tailored to client goals.

Created clean, user-friendly interfaces and high-converting landing pages, optimizing user experience and driving customer engagement.

Engineered custom software solutions, scripts, and tools to solve specific business problems, enhancing operational efficiency for clients.

Built intuitive web applications and mobile-friendly applications, ensuring seamless user experiences across devices.

Provided expert technical consulting, advising clients on optimal tech stacks, platforms, and architectures for successful project delivery.

Education

Obafemi Awolowo University

→
Bachelor of Applied Science - BASc Computer Science

Languages

English

Skills

AI & Machine Learning

AI Data Annotation, Prompt Engineering, AI Trainer, Model Evaluation, AI Response Rating, LLM Development, Multimodal AI Systems, RLHF Workflows, Pairwise Comparison Tasks, Multimodal Annotation Pipelines, Rubric Design, Edge Case Testing.

Automation & Integration

Make.com, n8n, Zapier, API Integrations, Workflow Automation, Multi-step Logic, Triggers, Scheduling, Webhooks, REST APIs, Business Automation, NGO Operations, Donor Management, Volunteer Coordination, Grant Reporting, Beneficiary Tracking, CRM Syncing, Invoicing, Lead Capture, Email Sequences, Order Processing, Onboarding Flows, Airtable, Google Sheets, Notion, Slack, Stripe, WhatsApp Business API.

Software Development & Web Technologies

Web Development, Software Engineering, App Development, Web Design, HTML, CSS, JavaScript, Modern Frameworks, Custom Software Solutions, Scripts, Web Apps, Mobile-Friendly Applications, Technical Consulting, Tech Stack Selection, Platform Architecture, Clean Code, On-time Delivery.

Cybersecurity

Cybersecurity Awareness, Secure System Design.