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Alexander Da Costa

Developer & Designer

I create beautiful, functional digital experiences with a focus on performance and user experience.

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About Me

Alexander Da Costa

I'm a passionate developer and designer with over 3 years of experience creating digital experiences that people love. I specialize in building modern, responsive websites and applications with clean, efficient code.

My approach combines technical expertise with creative problem-solving to deliver solutions that are both beautiful and functional. I'm constantly learning and adapting to new technologies and design trends.

My Skills

Frontend Development
Backend Development
UI/UX Design
Problem Solving
Clean Code
Performance Optimization

Resume

Experience

AI Data Annotator & Model Evaluator

2025 – Present

Evaluate and improve AI model outputs across diverse domains using detailed rubrics and prompt engineering. Perform edge-case analysis and contribute to improving annotation guidelines and training data quality. Maintain quality and efficiency within a high-volume annotation pipeline.

Admin & Web Developer

2023 – 2024

Developed new web pages and features with HTML/CSS/JavaScript. Improved CRM workflows for membership tracking, invoicing, and onboarding automation. Enhanced productivity through process optimization and CRM automation.

Mortgage Associate

2019 – 2022

Managed mortgage transactions for over 150 clients. Customized ZOHO CRM with SMS campaign/inbox integration. Automated marketing for client refinancing opportunities. Built marketing automations to generate personalized mortgage reports and identify refinancing opportunities.

Education

Bachelor of Science in Software Engineering

2025

Western Governors University

Diploma in Web Development

Lighthouse Labs

Bachelor of Business Administration

2019

NAIT

Certifications

AWS Cloud Practitioner

2024

Amazon Web Services

ITIL v4 Foundations

2024

AXELOS / PeopleCert

My Projects

Login Page
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ArtsSpace

Full-stack web app for managing art studio memberships and space reservations. Features real-time database interactions and role-based access using Supabase and PostgreSQL. Designed responsive UI for mobile and desktop use.

Web DevelopmentReactTypeScriptSupabasePostgreSQLTailwind CSS
Home DashboardAustralian Cattle Dog & RottweilerBorder Collie & Doberman PinscherAlaskan Malamute & Pembroke Welsh CorgiShiba Inu & PugScottish Terrier & Akita
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Muttly

AI-powered app to create custom "Mutts" by blending two dogs and generating stat cards. Integrates Gemini and Replicate APIs with React and Node. Allows saving and sharing creations.

AI/MLReactNode.jsPostgreSQLGemini APIReplicate API
HomeThe Battle Begins...Megatron Wins
1 / 3

Boolebots

Educational game teaching Boolean logic gates. Developed collaboratively using Agile/Scrum practices. Designed to help students visualize and experiment with logic gate behavior.

Web DevelopmentReactSCSS
HomeA QuizResults Screen
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Quizzical

Fun quiz app pulling randomized questions from an API across a wide range of topics. Users can challenge themselves on a variety of subjects in an engaging interface.

Web DevelopmentReactAPICSS

Get In Touch

Interested in working together? Feel free to reach out!