Leja Aprianza

Product Development & Full-Stack Engineering

Specializing in workflow automation and backend system design for scalable fintech, AI chatbot, and Web3 applications.

lejaprianza@gmail.com|LinkedIn|GitHub|Bandar Lampung

Work Experience

Product Development

atWeselAja

Nov 2025 – Present Bandar Lampung

Cross-border payment fintech regulated by Bank Indonesia (No. 27/715/Bdl/Srt/B).

Built subscription-based chatbot for merchant management using Next.js + Supabase
Designed scalable backend: PostgreSQL schema, auth, API management, query optimization
Integrated n8n, Telegram, and Xenith payment gateway for automated subscription workflows
Designed AI agent prompts to handle subscription-related user scenarios
Implemented CI/CD pipelines with GitHub Actions for automated build, test, and deploy

Next.jsTypeScriptSupabasen8nTelegram APIPostgreSQLGitHub Actions

Frontend Developer

atTeman Data

Mar 2022 – Jan 2025 Jakarta

Data consulting & AI company specializing in analytics, AI, and cloud solutions.

Built responsive chatbot extension and interactive frontend interfaces
Developed data visualization dashboards using Next.js + ECharts + Mapbox for traffic analysis
Enabled real-time communication via Socket.IO (bidirectional data flow)
Supported Web3 integration: bridging Web2 apps with blockchain-based services
Wrote, tested, and deployed Ethereum smart contracts (Remix, Truffle, IPFS, Web3.js)

Next.jsReactSocket.IOEChartsMapboxSolidityWeb3.jsIPFS

Technical Skills

TypeScriptJavaScriptPythonSolidityNext.jsReactNode.jsPostgreSQLMySQLSupabasen8nREST APIGraphQLDockerGitGitHub ActionsCI/CDSocket.IOWeb3.jsEthers.jsIPFSMapboxEChartsTailwind CSS

Education

Institut Teknologi Sumatera

Aug 2017 – Aug 2022

Bachelor of Electrical Engineering — GPA 3.50 / 4.00

Electrical Engineering Lab Assistant

Bangkit Academy (Google, GoTo, Traveloka)

Feb 2021 – Jul 2021

Machine Learning Path

Competitive Google-led career readiness program. Built end-to-end ML projects with Python, TensorFlow, Scikit-learn.