Precious is available for hire

Precious Omegba

Verified Expert in Engineering

Full-stack Development Developer

Lagos, Nigeria

Toptal member since March 25, 2025

Expertise

Full-stack Web Development Google Software Debugging Code Review PHP JavaScript CSS Database HTML5 MySQL Git

Bio

I'm a self-driven, results-oriented developer with 11 years of software development experience. I excel in communication, collaborate seamlessly, and take initiative when needed. My approach strikes a balance between excellence and efficiency, consistently delivering high-quality results. With a proven track record, I bring speed, precision, and innovation to every project.

Portfolio

Kahani Health Inc.

CI/CD Pipelines, iOS, Android, Firebase, User Experience (UX), Flutter, Dart...

Gamma World LLC

Dart, Flutter, Firebase, Google Cloud, Full-stack, Mobile App Testing...

Rapasso.nl

Flutter, Dart, Kotlin, Swift, HTML, CSS, TypeScript, Android, Databases...

Experience

JavaScript - 11 years
PHP - 11 years
Full-stack Development - 10 years
iOS - 8 years
App Development - 7 years
Flutter - 7 years
Go - 7 years
Dart - 6 years

Preferred Environment

MacOS, Windows, Flutter, Go, Java, Linux, JavaScript, Kotlin, Web, PHP

The most amazing...

...thing I've done is working with several startups and taking products from 0 to MVP and then to serving thousands of active users—not once, but twice.

Work Experience

Flutter Developer

2025 - 2026

Kahani Health Inc.

Developed a new AI-powered therapy app using Flutter. Successfully integrated agents to help users via chat to analyze and recommend personalized sessions and exercises for users, while walking them through every step on their journey to recovery.
Tracked and fixed all bugs while using reporting tools like ClickUp.
Built the MVP for an AI-driven diagnostic and recovery support app for eating disorders. Secured project backing and ensured the successful launch process. The app is currently undergoing controlled clinical trials to evaluate efficacy.

Technologies: CI/CD Pipelines, iOS, Android, Firebase, User Experience (UX), Flutter, Dart, Material 3, WebSockets, Google, Loggers, GitHub Actions, REST APIs, Data Modeling, APIs, Machine Learning, Mobile App Design, Unit Testing, SDKs, REST, Performance Optimization, Documentation, Debugging, Authentication, Architecture, Android App Development, Firebase Hosting, Security, AI Agent Orchestration, API Key, AI Algorithms, AI Voice Agents, API Development, RESTFul APIs

Full-stack Developer

2025 - 2025

Gamma World LLC

Developed a social media app using Flutter. Made a pixel-perfect replication of the Figma design in a Flutter app. Added all required features to the mobile app.
Completed the project and also added a few improvements.
Completed an app to a launch-ready state. The project is currently in the process of fundraising.

Technologies: Dart, Flutter, Firebase, Google Cloud, Full-stack, Mobile App Testing, QA Testing, Pixel Perfect, Mobile Apps, ECMAScript (ES6), Google Play Store, Testing, Git, Reverse Engineering, APK, APIs, Web Design, Mobile App Design, Unit Testing, SDKs, REST, Performance Optimization, Debugging, Authentication, Architecture, Android App Development, Firebase Hosting, Security, AI Agent Orchestration, API Key, AI Algorithms, AI Voice Agents, API Development, RESTFul APIs

Mobile Developer

2024 - 2025

Rapasso.nl

Developed mobile apps for Android and iOS for use by coaches and their clients to replace outdated and redundant apps built in Ionic.
Added new features and tracked and fixed all bugs. Utilized the Zoho reporting tool.
Launched a new app on both the Google Play store and the Apple app store. The new app had over 8,000 downloads in the first month.

Technologies: Flutter, Dart, Kotlin, Swift, HTML, CSS, TypeScript, Android, Databases, CI/CD Pipelines, App Development, iOS, HTML5, REST APIs, OAuth, API Integration, OpenAI, AI Adoption, AI Prompts, Artificial Intelligence (AI), Riverpod, Mobile App Development, OpenAI API, Mobile Development, Deployment, Large Language Models (LLMs), Natural Language Processing (NLP), Data Modeling, User Experience (UX), Material 3, Loggers, Google, Google Cloud, Mobile App Testing, QA Testing, Pixel Perfect, Mobile Apps, ECMAScript (ES6), Testing, Git, Amazon Web Services (AWS), Burp Suite, Security Research, Reverse Engineering, APK, Machine Learning, Mobile App Design, Unit Testing, SDKs, REST, Performance Optimization, Integration Testing, Debugging, Authentication, Architecture, Android App Development, Security, API Key, API Development, RESTFul APIs

Freelance Developer

2023 - 2024

an online freelancing agency

Worked as a freelancer and code mentor, where I collaborated with clients to develop projects and guided developers on best practices, coding standards, and efficient problem-solving.
Delivered high-quality solutions while mentoring others to improve their technical skills and code quality.
Completed 300+ jobs/sessions with 200+ 5-star reviews.

Technologies: Flutter, Dart, Python, Go, Java, JavaScript, Firebase, Code Review, Code Refactoring, Swift, Kotlin, Android, React Native, Databases, React, CI/CD Pipelines, Full-stack Development, App Development, Web Development, iOS, HTML5, Cloud Firestore, Firebase Cloud Functions, WebSockets, REST APIs, API Integration, OpenAI, AI Adoption, AI Prompts, Artificial Intelligence (AI), Riverpod, Mobile App Development, OpenAI API, Mobile Development, Deployment, Large Language Models (LLMs), Natural Language Processing (NLP), FlutterFlow, Stripe, Data Modeling, User Experience (UX), Loggers, Google, GitHub Actions, Google Cloud, Google Maps API, SQL, Full-stack, Mobile App Testing, QA Testing, Pixel Perfect, Mobile Apps, PostgreSQL, ECMAScript (ES6), MySQL, Google Play Store, Testing, Git, Amazon Web Services (AWS), Security Research, Reverse Engineering, APK, APIs, Next.js, Machine Learning, Exercise & Fitness, Web Design, Mobile App Design, NestJS, FFmpeg, Unit Testing, Supabase, SDKs, REST, Performance Optimization, Vue, PDF, Integration Testing, Documentation, Debugging, Authentication, Architecture, Android App Development, Firebase Hosting, Security, AI Agent Orchestration, Figma Make, API Key, AI Algorithms, API Development, RESTFul APIs

Team Developer

2022 - 2023

TicketCloud

Implemented all features together with a team of 6 while utilising Jira for reporting and task management.
Managed the team and actively developed the TicketCloud mobile app, back end, and web platform.
Launched the product successfully, which was later purchased and rebranded by a bigger player in the industry.

Technologies: Flutter, Dart, Kotlin, Swift, PHP, Go, JavaScript, HTML, CSS, Android, Databases, React, CI/CD Pipelines, Full-stack Development, App Development, Web Development, iOS, HTML5, Cloud Firestore, Firebase Cloud Functions, WebSockets, REST APIs, OAuth, API Integration, AI Prompts, Artificial Intelligence (AI), Riverpod, Mobile App Development, Mobile Development, Deployment, Large Language Models (LLMs), Stripe, Data Modeling, User Experience (UX), Loggers, Google, GitHub Actions, Google Cloud, Google Maps API, SQL, Python, Mobile App Testing, QA Testing, Pixel Perfect, Mobile Apps, PostgreSQL, ECMAScript (ES6), MySQL, Google Play Store, Testing, Git, Amazon Web Services (AWS), Burp Suite, Security Research, Reverse Engineering, APK, APIs, Web Design, Mobile App Design, Unit Testing, SDKs, REST, Vue, Integration Testing, Documentation, Debugging, Authentication, Architecture, Android App Development, Firebase Hosting, Security, Figma Make, API Key, API Development, RESTFul APIs

Tech Lead

2021 - 2022

SelfieConnect

Led the team to develop a complete solution, including the mobile apps for both Android and iOS, the marketing website, and a back-end web dashboard for administration and monitoring.
Assigned tasks, added all features, and fixed all known issues.
Worked with the marketing team and oversaw the technical aspects of the launch process.

Technologies: Firebase, PHP, Laravel, HTML, CSS, Java, Swift, Kotlin, Android, Databases, Full-stack Development, App Development, Web Development, iOS, HTML5, Cloud Firestore, Firebase Cloud Functions, WebSockets, REST APIs, API Integration, Mobile App Development, Mobile Development, Deployment, Stripe, Data Modeling, User Experience (UX), Loggers, Google, Google Cloud, Google Maps API, SQL, Python, Full-stack, Mobile App Testing, QA Testing, Pixel Perfect, Mobile Apps, PostgreSQL, ECMAScript (ES6), MySQL, Google Play Store, Testing, Git, Amazon Web Services (AWS), Burp Suite, Security Research, Reverse Engineering, APK, APIs, Next.js, Web Design, Mobile App Design, NestJS, FFmpeg, SDKs, REST, Performance Optimization, Vue, Integration Testing, Documentation, Debugging, Authentication, Architecture, Android App Development, Firebase Hosting, Security, API Key, API Development, RESTFul APIs

Experience

Good Inside

https://www.goodinside.com/

A parenting coaching app. While freelancing, I had the opportunity to help the mobile development team handle instability issues with their mobile app, which was built with Flutter and Dart. I helped them with issues relating to state management and also helped them build eye-catching animations to create a gamified experience for their users.

Fiatmo

Fiatmo is an event-based social media network connecting people through events they love. It combines event management, gaming, and social connections. It is a next-level social media platform built with HTML, CSS, JavaScript, HTMX, and Go.

Education

2015 - 2019

Bachelor's Degree in Mathematics and Computer Science

Ambrose Alli University - Ekpoma

Skills

Libraries/APIs

Node.js, REST APIs, Stripe, Google Maps API, Vue, API Development, HTMX, React, OpenAI API, FFmpeg

Tools

Firebase Authentication, Git, AI Prompts

Languages

Dart, Go, PHP, HTML, CSS, JavaScript, Python, HTML5, SQL, ECMAScript (ES6), Java, Kotlin, Swift, TypeScript

Frameworks

Flutter, Laravel, Riverpod, Next.js, NestJS, React Native

Paradigms

Code Refactoring, App Development, Mobile Development, Testing, Mobile App Design, Unit Testing, REST

Platforms

Web, Mobile, Android, iOS, FlutterFlow, Amazon Web Services (AWS), Burp Suite, MacOS, Windows, Linux, Firebase

Storage

Databases, Cloud Firestore, Google Cloud, PostgreSQL, MySQL

Industry Expertise

Web Design

Other

Code Review, CI/CD Pipelines, Full-stack Development, Web Development, Firebase Cloud Functions, WebSockets, API Integration, Mobile App Development, Deployment, Data Modeling, User Experience (UX), Loggers, Google, Full-stack, Mobile App Testing, QA Testing, Pixel Perfect, Mobile Apps, Google Play Store, Security Research, Reverse Engineering, APK, APIs, SDKs, Performance Optimization, Integration Testing, Documentation, Debugging, Authentication, Architecture, Android App Development, Firebase Hosting, Security, AI Agent Orchestration, API Key, AI Algorithms, RESTFul APIs, OAuth, OpenAI, AI Adoption, Artificial Intelligence (AI), Large Language Models (LLMs), Natural Language Processing (NLP), Material 3, GitHub Actions, Exercise & Fitness, Supabase, PDF, Figma Make, AI Voice Agents, Machine Learning

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