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Talha HanifTH
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Talha Hanif

@talhahanif

Android engineer at TEO International building offline-first REEFT and RAG applications with LangChain and ChromaDB.

Pakistan
Message

At TEO International, I build Python RAG applications with LangChain and ChromaDB, using OpenAI, Claude, and Groq-hosted LLMs. I also lead native Android development of REEFT for a Denmark-based client and engineered it to keep key functions working offline.

At ArpaTech (Pvt.) Ltd, I created Node.js backend APIs and delivered the Caremiles Android app with Kotlin and Jetpack Compose, including Stripe in-app payments. Earlier, I launched Tyslin Exchange, a crypto trading app with real-time prices and a multi-coin wallet, and developed Android and Flutter apps across agriculture, education, and other domains.

Experience

Work history, roles, and key accomplishments

TI
Current

Principal Software Engineer – Android

TEO International

Aug 2024 - Present (2 years 3 months)

Builds retrieval-augmented generation (RAG) applications in Python with LangChain and ChromaDB, using OpenAI, Claude and Groq-hosted LLMs. Leads native Android development of REEFT for a Denmark-based client, engineering it to work fully offline and structuring code with MVVM and Clean Architecture.

AL

Software Engineer – Android & Backend

ArpaTech (Pvt.) Ltd

Dec 2022 - Aug 2024 (1 year 8 months)

Created backend APIs in Node.js, Express and Sequelize on MySQL and PostgreSQL. Delivered the Caremiles Android app in Kotlin and Jetpack Compose with MVVM, Clean Architecture, Coroutines and Kotlin Flow, integrated Stripe for secure in-app payments, and automated builds with Bitbucket Pipelines CI/CD and SonarQube quality gates.

SK

Android Developer

Switch Solutions (Bakhabar Kissan)

Mar 2021 - Dec 2022 (1 year 9 months)

Built the Jazz MAgri field-agent app in Flutter (MVVM, GetX, Provider) to record farmers' produce and loan transactions. Developed Bakhabar Kissan for crop management, weather, market prices, loans, livestock and machinery, online and offline, and shipped Telenor's Khushaal Watan app with localized farming content, weather updates and calls with experts.

RL

Android Developer

Reactive Space (Pvt.) Ltd

Sep 2019 - Mar 2021 (1 year 6 months)

Launched Tyslin Exchange, a crypto trading app with real-time prices and a multi-coin wallet to send and receive digital money. Developed Pro Guide, an exam-prep app for CSS, FPSC, PPSC and PMS candidates with MCQs, forums and notes, and published all three apps, including FQE, to Google Play.

HC

Android Developer

HA Technologies and Oranje Click

Dec 2017 - Dec 2018 (1 year)

Built Mom's School Transport and BloodLine (HA Technologies), plus Rasai, FannInnbox, XLINX and Crowd1 (Oranje Click). Worked with AWS, MySQL, Firebase and PubNub real-time messaging across these apps.

Education

Degrees, certifications, and relevant coursework

PMAS Arid Agriculture University logoPU

PMAS Arid Agriculture University

Master of Computer Science, Computer Science

Master of Computer Science degree from PMAS Arid Agriculture University, Rawalpindi, completed in 2018.

IBM logoIB

IBM

Backend Development with Node.js, Express and Sequelize, Backend Development

Certification in Backend Development with Node.js, Express and Sequelize from IBM.

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