Joyce

PORTFOLIO

London, UK

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Open to opportunities

Kalpana Joyce Dovari

Joyce

AI Engineer

Building production AI systems that reason, govern, and automate decisions.

Live Demo → GitHubArchitecture →View Projects →

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01

Tech Stack

Everything I work with — click a category to filter

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6 SKILLS

Languages

PythonTypeScriptJavaScriptJavaC++SQL
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8 SKILLS

AI / ML

PyTorchTensorFlowscikit-learnKerasOpenCVWav2VecHuggingFaceLangChain
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7 SKILLS

AI Agents & LLM Tools

LangGraphN8NFlowiseOllamaFastAPIStreamlitGroq
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4 SKILLS

Frontend

ReactNext.jsCSSBootstrap
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7 SKILLS

Backend & Database

FlaskExpress.jsFirebaseMongoDBMySQLSQLitePostgreSQL
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7 SKILLS

Cloud

AzureAWSGCPDockerGitHub ActionsVercelCloudflare Workers
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7 SKILLS

Data & Analytics

PandasNumPyPlotlydbtPrefectTableauPower BI
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5 SKILLS

Tools & Platforms

GitJupyterGoogle ColabVS CodeMLflow
02

Case Studies

UX/UI research and redesign — click a card to flip it

UX/UI Design

2 weeks · Figma, Maze

Duolingo Reimagined

"Teaching language, not just surviving it"

500M+ users. Less than 1% reach conversational fluency. Duolingo teaches you to pass a quiz — not to speak. This redesign adds the pedagogical layer the app is missing: grammar, conjugation, real pronunciation, and personalised vocabulary.

500M+

Downloads

<1%

Reach fluency

8/8

Users preferred redesign

⟳click to flip

Duolingo Reimagined

View the full case study

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UX/UI Design

2 weeks · Figma, Maze

Pinterest Reclaimed

"Giving users control of what they walk into"

Pinterest was a safe space. Now AI-generated imagery, affiliate links, and ads are mixed together with no walls between them. This redesign gives users three modes — Origin, AI Studio, Explore — so they choose what version of Pinterest they walk into.

91%

Miss old Pinterest

61%

Can't tell AI from real

6/6

Understood mode system

⟳click to flip

Pinterest Reclaimed

View the full case study

click anywhere to flip back