I build software that solves real problems.
I'm Justina Ominisan, a software engineer. I build polished interfaces, websites, online stores and business applications, as well as AI-powered products that people can actually use.
- React
- Next.js
- TypeScript
- Tailwind CSS
- AI products
- AWS certified
01Work
Things I've shipped
Client builds and personal projects. All live.
Company landing page
The public site for Datamellon, an AWS Advanced Partner building enterprise AI, cloud and financial-services solutions.
Pharmaceutical marketplace
A procurement network connecting licensed healthcare providers with verified pharmaceutical suppliers.
Source
Gamified exam prep
Study modes that let students learn smarter and compete with friends.
Source
02Experience
Building at Datamellon
Production frontends and AI systems. Open any project for the full case study.
KYC, Administration & AI Platform
Redesigned complex compliance dashboards, shipped AI Studio across 12 dashboards, and added automated E2E coverage to critical KYC workflows.
Read the case study
- React
- TypeScript
- API development
- E2E testing
- AWS
SOP → Automated Journey Map Generator
An AI proof of concept that turns SOP documents into branded, production-ready journey maps — document parsing, retrieval, LLM reasoning and image rendering in one workflow.
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- FastAPI
- Python
- AWS Bedrock
- Amazon Nova Pro
- Vector + BM25
- Pillow
Analytics & Timeline Dashboards
Analytics dashboard UI including a Gantt-style timeline, turning raw API data into something stakeholders can read at a glance.
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- React
- Next.js
- TypeScript
- Data viz
RAG & Real-Time LLM Platform
Client-side SSE integration for a RAG platform — responses render progressively as they stream. Also debugged and restored it in production behind CloudFront.
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- React
- TypeScript
- Server-Sent Events
- RAG
- AWS Amplify
03Stack
What I build with
From the interface down to the services behind it.
- React
- Next.js
- TypeScript
- JavaScript
- Tailwind CSS
- CSS / SCSS
- React Query
- Redux
- Node.js
- Express
- FastAPI
- REST APIs
- Server-Sent Events
- MongoDB
- AWS Bedrock
- Amazon Nova Pro
- RAG
- LLM integrations
- Knowledge Bases
- Hybrid search
- AWS
- AWS Amplify
- CloudFront
- Vercel
- Render
AWS Certified AI Practitioner
Amazon Web Services
Meta Front-End Developer
Meta
Programming with JavaScript
Meta
Version Control
Meta
04About
I'm Justina, a software engineer with an eye for detail.
From my first interfaces to production AI software, with freelance work for clients along the way, I build things that are polished, reliable and genuinely useful.
4
Shipping production frontends
Live
Websites, online stores, apps and AI products
AWS
AI Practitioner
05Contact
Let's build something useful.
I am always interested in new opportunities and challenging projects. Whether you need a responsive website, a complex web application, or just want to discuss your ideas, I would love to hear from you.