Don Onwunumah

Don Onwunumah

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ABOUT ME
Senior web and Mobile Cloud Native Full Stack Developer
Senior web and Mobile Cloud Native Full Stack Developer

I am a full stack React, React-Native and TypeScript, Java, PHP, Scala engineer, mentor and architect with over 10 years experience including Devops role such AWS deployment and security. My specialties are absolute beginners, small businesses, and aspiring engineers. I have guided hundreds of students into their first development job. I provide full support to development job-seekers, from mock interviews to career coaching.

I offer tutoring services from bootcamp support to long-term mentoring and a complete educational experience. I've directed teaching programs and led classroom instruction in fullstack development, professional strategies.

I can help you learn to make apps with the features you want and explain exactly how they work. If you want to become a professional software engineer or entrepreneur and are eager to gain the necessary knowledge, I would be honored to help you improve your understanding, code, or career.

I can help you assemble and manage a team of developers or coach you through an individual project. I offer pair-programming, consulting, and architectural planning alongside direct management and training. I can help key contributors or entire teams deliver features and understand how their solutions work. I can guide decision makers through complicated technical challenges to confidently determine the best course of action.

London (+00:00)
Joined July 2019
EXPERTISE
10 years experience
I have worked extensively with AWS services and resources, and I am adept at creating, deploying, and managing infrastructure using CDK. ...
I have worked extensively with AWS services and resources, and I am adept at creating, deploying, and managing infrastructure using CDK. My knowledge spans various AWS services such as AWS Lambda, Amazon S3, Amazon API Gateway, and more. Built and deployed multiple API and mobile based applications using AWS Lambda and AWS Amplify (Was original beta tester since Amplify inception a few years ago) . Advanced Identity management (with OpenID and federated connectivity) with Cognito and IAM services.
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10 years experience
- Proficiency in TypeScript, JavaScript, and Node.js for backend development, ensuring code quality and maintainability. - I have worked ...
- Proficiency in TypeScript, JavaScript, and Node.js for backend development, ensuring code quality and maintainability. - I have worked extensively with AWS services and resources, and I am adept at creating, deploying, and managing infrastructure using CDK for typescript
JavaScript
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JavaScript
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12 years experience
10 years experience
10 years experience
Multiple Apps in the APP store
Multiple Apps in the APP store
macOS#ios #swift #objectivec #cocoaObjective-C
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macOS#ios #swift #objectivec #cocoaObjective-CiOS
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10 years experience
- Deployed multiple apps in the app store
- Deployed multiple apps in the app store

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SOCIAL PRESENCE
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EMPLOYMENTS
Cloud, Web and Software Architect and Lead
WIPO
2021-04-01-Present

I am responsible for designing and architecting new and legacy projects, unto the cloud. I lead a team of 8 engineers with a mixture o...

I am responsible for designing and architecting new and legacy projects, unto the cloud. I lead a team of 8 engineers with a mixture of front-end and back-end expertise.

I create best practises within the team.

I liase with project board and report project status to C-Level executives.

Legacy projects migrated to modern stack and architectures include J2EE applications

- Built CI/CD Pipeline (Test-Build-Deploy)

- Refactor/Re-Architect Applications

Java
SQL
Oracle
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Java
SQL
Oracle
PostgreSQL
Amazon S3
TypeScript
Spring Boot
JavaScript
DynamoDB
Oracle SQL
AWS
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Full Stack Engineer
Full Stack Engineer at Forwood Safety (Rio Tinto)
2020-04-01-2021-04-01

Software Architecture and Solution Design for SAAS full stack offering

AWS Lambda, GraphQL and API Gateways

AI and ML Inte...

Software Architecture and Solution Design for SAAS full stack offering

AWS Lambda, GraphQL and API Gateways

AI and ML Integration (Apache Spark and ETL Pipeline for IOT Sensors)

AWS AppSync, Lambda and GraphQL (React and React-Native)

Terraform infrastructure code (AWS EKS and Serverless, SQS, SNS)

Re-architected a legacy RDS to lower cost DynamoDB based architecture

Container based JVM delivery

API
Docker
Python 3
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API
Docker
Python 3
React
React Native
Apigee
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Lead Engineering Consultant
SyftApp
2019-04-01-2020-04-01

Built CI/CD Pipeline (Test-Build-Deploy) Refactor/Re-Architect Applications Reduced crash-rate by 70%, improved Play Store Review Hybr...

Built CI/CD Pipeline (Test-Build-Deploy) Refactor/Re-Architect Applications Reduced crash-rate by 70%, improved Play Store Review Hybrid of React-Native and Native App

Android
Ruby on Rails
PostgreSQL
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Android
Ruby on Rails
PostgreSQL
Heroku
React
Elixir
Redux
iOS
React/react native with redux
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PROJECTS
Syft Mobile App and Syft Force
2019
React
Kotlin
Swift
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React
Kotlin
Swift
React/react native with redux
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