Senior Full-Stack Engineer | AI Product & Engineering

JANE OSSAI.

01 — Who I am

ENGINEER.
DESIGNER.
POLYMATH.

I'm an experienced full-stack engineer working with JavaScript (ES6), Java, Spring Boot, React, and the MEAN stack. I graduated with first-class honours in MEng Computer Science from the University of Southampton, and I care about work that solves real-world problems.

I'm exploring roles and contracts where full-stack engineering, AI, and product meet — and I'm building my own ventures alongside that.

02 — How I work

HOW I WORK.

I like staying close to a problem from framing through to what we ship — so product decisions, UX, and implementation don't drift apart.

In practice that's a lot of JavaScript and React, Java and Spring Boot where the backend needs it, and AI when it clearly helps the product — not bolted on for its own sake.

03 — What I'm building

WHAT I'M BUILDING.

Alongside client and freelance work, I'm building a portfolio of products — see the portfolio for case studies and live work.

View portfolio →

04 — Writing

WRITING.

Thoughts on technology, engineering, product,
and the spaces in between.

Read the blog →

05 — Background

BACKGROUND.

Eight years of professional engineering across enterprise software, startups, and independent product development.

I've worked across the full stack — frontend architecture in React and Next.js, backend systems in Node.js and Java, React Native, cloud infrastructure on AWS and Vercel, and AI systems spanning RAG pipelines, LLM agents, and multimodal retrieval.

✦ Capabilities · 2026

SKILLS

FRONTEND

React, Next.js, React Native, TypeScript, JavaScript (ES6+), HTML5, CSS3, Tailwind CSS, Angular, Vue.js, Accessibility (WCAG 2.0)

BACKEND

Node.js, Express, Java, Spring Boot, Maven, JUnit, REST APIs

DATABASES

PostgreSQL, MongoDB, Firebase, Supabase, SQL, NoSQL

AI & ML ENGINEERING

LLM foundations, RAG systems, LLM integration, LangChain, LLM Agents, Reasoning LLMs, Multimodal AI, OpenCLIP, Claude API, OpenAI API, Vector embeddings, FAISS, AI prompt engineering, Multimodal RAG architecture, ByteByteGo AI Engineering certified

AI TOOLS & WORKFLOWS

Image generation, Video generation, LLM-powered automation, Make.com AI workflows, Vibe coding, Claude, ChatGPT, Cursor, Claude Code

INFRASTRUCTURE & TOOLING

Git, Vercel, Cloud development, AWS, Cursor, Claude Code, CI/CD, Jenkins, Docker, Agile

AUTOMATION

Make.com, Telegram bot integration, Notion OS, Contentful CMS, Headless CMS architecture, Webhook design

DATA & ANALYSIS

Web scraping, Data pipeline building, Demographic analysis, Tableau

PRODUCT & DESIGN

UX/UI design, Interaction design, Human-computer interaction, Design principles, Usability & accessibility, UX research, User testing, Data visualisation, Product strategy, Product-market fit analysis, Figma, Design systems, End-to-end product ownership