Chinedu Isaiah
Verified Expert in Engineering
Full-stack Developer
Vancouver, BC, Canada
Toptal member since March 1, 2022
Chinedu is a full-stack developer with over three years of experience working on various front-end and back-end technologies. He specializes in front-end technologies such as Angular, React, HTML CSS, JavaScript, and TypeScript. Chinedu also has experience working at the back end with the Spring framework using Java, Node.js, and ASP.NET.
Portfolio
Experience
- TypeScript - 7 years
- React - 7 years
- JavaScript - 6 years
- CSS - 6 years
- Java - 6 years
- HTML5 - 6 years
- Node.js - 5 years
- Angular - 3 years
Preferred Environment
Eclipse, Visual Studio Code (VS Code), Windows, OpenAI API
The most amazing...
...thing I've built is a chess web application with built-in AI where one can play against a computer or online against some other player.
Work Experience
Software Engineer
Yahoo! Mail
- Contributed to a large-scale email migration system (Comcast to Yahoo Mail), processing around 10+ million user mailboxes with high reliability and data integrity.
- Implemented and optimized migration workflows for messages and contacts, improving sync performance and reducing migration latency.
- Designed solutions for mail validation and failure handling, triaged issues at scale, and improved the success rates of migration jobs.
- Leveraged Splunk and internal tooling to monitor migration pipelines, debug failures, and drive operational improvements across the system.
- Supported the creation of AI-assisted tooling and bots that helped retrieve information and also auto-triage issues with mail migrations.
Software Engineer
Amazon Canada
- Developed, tested, and maintained scalable distributed services and key features for customer-facing applications, enhancing the seamless user experience for millions of Amazon customers.
- Participated in design reviews, providing critical feedback and ensuring adherence to best practices and architectural guidelines.
- Mentored and onboarded new hires, offering guidance on best practices and company standards to accelerate their integration into the team.
- Boosted operational efficiency by proactively resolving issues and creating comprehensive troubleshooting guidelines, leading to improved developer productivity.
- Built AI-assisted workflows that helped users generate and manage advertising bulk sheets through natural-language interactions, reducing manual spreadsheet work.
- Built an AI-powered ticket triage system that automatically classified incoming support issues, identified likely ownership, and routed tickets to the appropriate team, reducing manual triage effort and improving response times.
- Developed RAG-style evaluations to assess AI-generated responses against internal knowledge sources, measuring retrieval relevance, factual accuracy, and response quality to improve model reliability.
Software Engineer
Microsoft
- Designed the front-end architecture of Bing Saves ↔ Microsoft Edge Collections integration, enabling cross-product synchronization and improving user engagement.
- Designed and implemented scalable UI architecture and reusable component systems (React/C#), accelerating feature development and ensuring consistency across web and mobile surfaces.
- Owned end-to-end delivery of front-end features from design → implementation → experimentation → rollout, using flighting systems and telemetry to validate impact and reduce production issues.
- Improved system reliability and user experience by resolving cross-surface inconsistencies (e.g., dark mode rendering, data display, accessibility), reducing UI defects, and improving quality.
- Strengthened engineering practices through test strategy (unit, integration, visual), documentation, and code reviews, improving maintainability and significantly reducing onboarding time for new engineers.
Internal Contest Tester
LeetCode
- Tested coding questions used in a weekly and bi-weekly contest rigorously to ensure that they were accurate and met the expected standard.
- Reviewed problem descriptions and ensured they were worded correctly, clearly, concisely, and that they did not contain ambiguities.
- Ensured that edge test cases were covered and efficient solutions were selected over less efficient or accurate ones.
Full-stack Developer
Aviva
- Built and modified the company’s website features, yielding a significant increase in online premium sales.
- Optimized code structure and service workflows to ensure fast page load time.
- Participated in planning, developing, deployment, documentation, and the entire web application flow.
- Designed a browser extension to automate navigating the website for faster development and manual testing.
Research Assistant
The University of British Columbia
- Converted images from MRI scan to formats used for analysis and extracted data needed.
- Extracted useful data from questionnaires filled by patients converting the data to valuable formats for processing.
- Performed statistical analysis and built machine learning models to correlate childhood experiences with patterns observed in the MRI scans of corresponding patients.
Experience
Chess Web Application
Simple Messenger
Chess Clock
Education
Master's Degree in Computer Engineering
University of British Columbia - Vancouver, Canada
Skills
Libraries/APIs
React, Node.js, REST APIs, Stripe, Amazon Product Advertising API, Google Maps, jQuery, OpenAI API, Plaid API, Three.js
Tools
Git, AWS Key Management Service (KMS), GitHub, Visual Studio, Algorithm Design, MongoDB Atlas, ChatGPT, Plaid, Claude, Zapier, n8n, BigQuery, MATLAB, Splunk
Languages
Java, HTML5, CSS, JavaScript, TypeScript, HTML, Python, SQL, SCSS, C#.NET, C#, PHP, Dart, Bash
Frameworks
Angular, Spring Boot, Tailwind CSS, Next.js, JSON Web Tokens (JWT), Flutter, Spring, .NET Core, .NET, ASP.NET, ASP.NET MVC, Hibernate, Express.js, NestJS, Agentic Frameworks, Razor, Redux
Paradigms
Microservices, Microservices Architecture, Automation, Back-end Architecture, Event-driven Architecture, Continuous Delivery (CD), Web UI Design
Platforms
Amazon Web Services (AWS), AWS Lambda, Amazon EC2, Linux, Firebase, Docker, Kubernetes, Azure, Google Cloud Platform (GCP), WordPress
Storage
PostgreSQL, JSON, Cloud Deployment, Data Pipelines, Databases, Amazon S3 (AWS S3), MongoDB, MySQL, Amazon DynamoDB, Redis, Microsoft SQL Server
Other
Artificial Intelligence (AI), Data Structures, Algorithms, APIs, Front-end Development, Front-end, Full-stack, API Integration, Back-end, Serverless, Optimization, CI/CD Pipelines, ChatGPT API, Supabase, Architecture, Technical Leadership, ACM Problem Solving, Payment Gateways, Minimum Viable Product (MVP), Web App Development, AI Chatbots, API Applications, Web Development, PDF, Software Architecture, Software Design, Scalability, Authentication, Vector Databases, Full-stack Development, Proxy Servers, Proxies, Chatbots, Communication, Documentation, Orchestration, AWS Cloud Architecture, AWS Security Hub, Amazon Bedrock AgentCore, Amazon Cognito User Pools, Back-end Development, Business Process Automation, Process Automation, Fintech, Code Review, State Machines, AI Modeling, Cloud Applications, Web Applications, Cursor AI, Third-party APIs, Workflow Automation, Advisory, SaaS, SaaS Design, AWS Cloud Security, Generative Artificial Intelligence (GenAI), Solution Architecture, Robotic Process Automation (RPA), Office 365, Audits, Code Auditing, AI Tools, Product Engineering, Web Scalability, Chrome Extensions, Game Development, 2D Games, Tailwind UI, API Gateways, Mathematics, Statistics, AI Agents, Large Language Models (LLMs), Retrieval-augmented Generation (RAG), Mobile Apps, OpenAI, OAuth, GitHub Actions, AI Design, AI Programming, SMS, Optical Character Recognition (OCR), QuickBooks Desktop, Security, Natural Language Processing (NLP), FastAPI, Customer Service Chatbots, WordPress Plugins, Agentic AI, Startups, Game Design, Platforms, Document Management, Vibe Coding, AI Agent Orchestration, LLM Integration, AI Integration, Browser Automation, Web Scraping, Machine Learning, Data Engineering, Cloud Infrastructure, Design Systems, WebSockets, Internet of Things (IoT)
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