Jen-Ting Chang

Software Backend Engineer @ Crypto-Arsenal

About

A Software Engineer and recent USC graduate with an MS in Computer Engineering and over 5 years of experience building high-performance backend systems and cloud infrastructure. My expertise lies in architecting scalable solutions using Python, Go, and Java within AWS environments. Throughout my career, I have focused on optimizing performance and reducing costs in FinTech and data-intensive sectors. Notable achievements include: System Optimization: Reduced ETL pipeline runtime by 87% and memory usage by 98% for an AI RAG system. Infrastructure: Engineered CI/CD pipelines that reduced deployment time by 50% and cut CloudWatch log volume by 64%. FinTech Engineering: Built a distributed Kappa architecture trading engine, achieving <1s end-to-end latency and integrated high-volume payment gateways. I am passionate about solving complex problems in distributed computing, from real-time trading engines to AI agents. Currently based in the Bay Area and open to relocation

Country

United States

City

San Francisco Bay Area

Industry

Information Technology & Services

Skill

Multi-agent Systems, MCP (Multi Agent Protocol), LlamaIndex, AI Agents, LangChain, Multimodal Prompting, Model Context Protocol (MCP), Attention Mechanisms, Large Language Models (LLM), Word Embeddings, Spring Boot, Amazon Dynamodb, Retrieval-Augmented Generation (RAG), React.js, PostgreSQL, Apache Kafka, Apache Spark, Redis, WebSocket, gRPC

Experience

Software Backend Engineer

Crypto-Arsenal

2024-6 - 2025-8 · 1 yr 3 mos

Taipei City, Taiwan

• Integrated HTX exchange into a $143M-volume trading platform using TypeScript, enabling user auth, live candlestick feeds, and spot/futures trading with leverage and limit/market orders • Built Go back-end for a payment gateway serving 6K+ users, including HD wallet derivation, payment processing, RPC on-chain retrieval, ledger management, RESTful APIs, and MySQL • Built and managed payment gateway infrastructure on AWS, using Secrets Manager for seed security, API Gateway and Lambda for serverless computing, and RDS for payment data storage • Engineered a CI/CD pipeline, reducing deployment time by 50% using OIDC and JWT for AWS role assumption, automated unit tests and Docker containerization, and deployed to ECR with GitHub Actions • Reduced CloudWatch log volume by 64% across 50+ repos by developing a shared logging library to consolidate Kubernetes entries into a single JSON object

Software Engineer

Realplus Tech.

2022-11 - 2023-8 · 10 mos

Taoyuan City, Taiwan

Spearheaded the development of a Blockly framework for citizen developers to create custom quadcopter flight programs, driving adoption by over 500 users. Engineered a server-side runtime pipeline using Node.js to integrate and execute Blockly code securely. Enhanced real-time data reliability with WebSocket connections and timestamp-based filtering.

Software Engineer

RealPlus Tech.

2019-9 - 2022-10 · 3 yrs 2 mos

Taoyuan City, Taiwan

Led the design and development of a 4-wheel steering (4WS) vehicle backend system, integrating hardware interfaces through ROS and user interface via REST API. Implemented core functionalities on Linux using Python to provide real-time hardware status updates, process UI and controller commands, and control the 4WS vehicle.