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Xiaofan Jin

@xiaofanjin

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Senior software engineer specializing in backend, APIs, and scalable systems.

United States

Message

What I'm looking for

I seek a role where I can build scalable backend systems and production ML integrations, work with modern cloud-native stacks, and mentor engineers in a collaborative, security-conscious environment.

I am a senior software engineer with deep expertise in backend systems, microservices, and data-driven solutions, having delivered performant APIs and scalable architectures at high-growth companies.

I have designed and deployed Python-based RESTful APIs, containerized microservices with Docker and Kubernetes, and automated ETL and infrastructure workflows using Airflow, Terraform, and AWS services to improve reliability and reduce operational overhead.

I build production ML and AI integrations—deploying fraud detection on SageMaker and integrating OpenAI APIs—while prioritizing security (OAuth2.0/JWT), observability, and mentoring teams to raise engineering standards.

Experience

Work history, roles, and key accomplishments

Current

Senior Software Engineer

Current

SoFi

Jan 2024 - Present (2 years 5 months)

Designed and implemented Python RESTful APIs and a FastAPI/Redis microservices architecture, improving API response times by 25% and reducing system downtime by 30% through containerization and Kubernetes orchestration.

Python fastAPI Redis AWS Sagemaker Docker Kubernetes Apache Airflow

Software Engineer II

Amazon

Sep 2018 - Jan 2024 (5 years 4 months)

Developed Python microservices and analytics pipelines handling high-scale traffic (10M+ tx/sec), built recommendation and forecasting systems that increased conversion by 12% and reduced inventory issues by 15%.

Python Flask Django Apache Spark Terraform Docker Kubernetes Celery

Software Engineer

Noonum

Jun 2017 - Dec 2017 (6 months)

Built Python RESTful APIs and ETL pipelines producing sub-150ms responses and improved data transformation efficiency by 40%; deployed containerized services on Azure AKS and optimized PostgreSQL performance by 30%.

Python REST APIs Pandas SQLAlchemy Prophet Docker Azure Kubernetes Service PostgreSQL Chart.Js

Education

Degrees, certifications, and relevant coursework

Northeastern University - Seattle

Master of Science, Computer Science

2016 - 2018

Completed a Master of Science in Computer Science at Northeastern University's Seattle campus from 2016 to 2018 focusing on advanced software engineering and data-driven systems.