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I am a Senior Full Stack Engineer with 10+ years of experience specializing in high-performance Java backend development and modern web architectures. I have deep expertise in Java, Spring Boot, microservices, and cloud-native engineering, delivering scalable, secure platforms across fintech, enterprise, and SaaS environments. I am skilled at building intuitive frontends using JavaScript, Angular, and React, and I use Python for automation, data workflows, and service integrations. I focus on clean architecture, measurable impact, and shipping production-ready solutions that scale, while mentoring teams and improving CI/CD and reliability.…I am a Senior Full Stack Engineer with 10+ years of experience specializing in high-performance Java backend development and modern web architectures. I have deep expertise in Java, Spring Boot, microservices, and cloud-native engineering, delivering scalable, secure platforms across fintech, enterprise, and SaaS environments. I am skilled at building intuitive frontends using JavaScript, Angular, and React, and I use Python for automation, data workflows, and service integrations. I focus on clean architecture, measurable impact, and shipping production-ready solutions that scale, while mentoring teams and improving CI/CD and reliability.

Lu Wang

Full Stack Developer, Back-End Developer, Web Developer, +4

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I am a Senior Full Stack Engineer with 10+ years of experience specializing in high-performance Java backend development and modern web architectures. I have deep expertise in Java, Spring Boot, microservices, and cloud-native engineering, delivering scalable, secure platforms across fintech, enterprise, and SaaS environments. I am skilled at building intuitive frontends using JavaScript, Angular, and React, and I use Python for automation, data workflows, and service integrations. I focus on clean architecture, measurable impact, and shipping production-ready solutions that scale, while mentoring teams and improving CI/CD and reliability.…I am a Senior Full Stack Engineer with 10+ years of experience specializing in high-performance Java backend development and modern web architectures. I have deep expertise in Java, Spring Boot, microservices, and cloud-native engineering, delivering scalable, secure platforms across fintech, enterprise, and SaaS environments. I am skilled at building intuitive frontends using JavaScript, Angular, and React, and I use Python for automation, data workflows, and service integrations. I focus on clean architecture, measurable impact, and shipping production-ready solutions that scale, while mentoring teams and improving CI/CD and reliability.

Available to hire

I am a Senior Full Stack Engineer with 10+ years of experience specializing in high-performance Java backend development and modern web architectures. I have deep expertise in Java, Spring Boot, microservices, and cloud-native engineering, delivering scalable, secure platforms across fintech, enterprise, and SaaS environments.

I am skilled at building intuitive frontends using JavaScript, Angular, and React, and I use Python for automation, data workflows, and service integrations. I focus on clean architecture, measurable impact, and shipping production-ready solutions that scale, while mentoring teams and improving CI/CD and reliability.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Language

English

Fluent

Work Experience

Senior Software Engineer at Broadridge

June 1, 2019 - November 27, 2025

Led backend development for a high-volume fintech banking platform, handling real-time transactions, user authentication, and regulatory compliance. Designed and implemented RESTful APIs using FastAPI and Pydantic, boosting transaction throughput by 40%. Developed asynchronous microservices for scalable payment processing, reducing downtime by 25%. Optimized PostgreSQL queries and integrated Redis caching to improve API response times from 300ms to 120ms. Implemented unit testing and TDD, increasing code coverage to 90% and cutting production bugs by 35%. Integrated AI-driven anomaly detection for transaction monitoring using TensorFlow and scikit-learn, improving fraud detection accuracy by 30%. Collaborated with frontend teams to deliver seamless dashboards; deployed on AWS Lambda and EKS; conducted architecture reviews for scalable cloud-native designs.

Technical Consultant at Perficient

June 1, 2019 - June 1, 2019

Developed and maintained enterprise web apps using FastAPI and Celery for asynchronous tasks; improved system scalability by implementing a microservices architecture, reducing server load by 30%. Implemented JWT and OAuth2 for secure API authentication. Built AI-powered analytics dashboards using React.js and Django, providing predictive insights for 100k+ users with TensorFlow and scikit-learn. Leveraged NLP for data categorization, improving analytics accuracy by 25%. Led code reviews, mentored teams, and facilitated workshops to boost productivity and code quality. Implemented CI/CD pipelines with GitHub Actions, reducing release cycles from 2 weeks to 3 days. Optimized PostgreSQL and MySQL database queries with SQLAlchemy ORM.

Senior Frontend Engineer at Citius Tech

February 1, 2017 - February 1, 2017

Developed team management and e-commerce features using Python (Django) and React, Vue, improving workflows for practices, tournaments, and roster management. Optimized PostgreSQL queries and data access patterns for large sports datasets, enhancing frontend performance and reducing latency. Built asynchronous pipelines with Celery and implemented Redis caching for high-traffic features, improving system throughput and responsiveness. Enhanced cross-device UI with React and Webpack, delivering smooth, responsive experiences on desktop and mobile. Integrated GraphQL endpoints for flexible, efficient API access across web and mobile clients.

Full Stack Developer at MasterWord Services

March 1, 2016 - March 1, 2016

Maintained and enhanced Python/Django backend systems for SaaS monitoring solutions. Built reusable React components for dashboards and client interfaces. Integrated RESTful APIs and third-party services for improved monitoring and reporting. Optimized SQL and ORM queries, improving system efficiency by 20%. Collaborated on CI/CD workflows with Jenkins and GitHub Actions. Assisted in migration to cloud-native architecture using AWS services. Implemented automated unit testing and error monitoring with Sentry.

Full Stack Developer at Redfin

March 1, 2013 - March 1, 2013

Developed Real Estate backend systems in Python/Django to manage property listings and client interactions. Built dynamic frontend using vanilla JavaScript. Implemented API design for mobile and web applications. Improved CI/CD pipelines and integrated caching mechanisms using Redis to enhance performance.

Senior Frontend Engineer at Citius Tech

February 28, 2017 - February 28, 2017

Developed team management and e-commerce features using Python (Django) and React, Vue, improving workflows for practices, tournaments, and roster management. Optimized PostgreSQL queries and data access patterns for large sports datasets, enhancing frontend performance and reducing latency. Built asynchronous pipelines with Celery and implemented Redis caching for high-traffic features, improving system throughput and responsiveness. Enhanced cross-device UI with React and Webpack, delivering smooth experiences on desktop and mobile. Integrated GraphQL endpoints for flexible API access across web and mobile clients.

Full Stack Developer at MasterWord Services

March 31, 2016 - March 31, 2016

Full Stack Developer at Redfin

March 31, 2013 - March 31, 2013

Developed Real Estate backend systems in Python/Django to manage property listings and client interactions. Built dynamic frontend using vanilla JavaScript. Implemented SQL query optimization to handle large property datasets. Assisted in API design for mobile and web applications. Improved CI/CD pipelines, reducing deployment errors by 15%. Integrated caching mechanisms using Redis to enhance performance.

Technical Consultant at Perficient

February 1, 2017 - June 1, 2019

Led the design and development of modular microservices using Java Spring Boot and Node.js, driving scalability and maintainability for large-scale SaaS and enterprise applications. Engineered RESTful APIs processing 2M+ monthly requests, ensuring zero critical downtime and contributing to system reliability at enterprise scale. Spearheaded the migration of legacy systems to AWS using EC2, RDS, and Terraform, automating infrastructure and reducing operational overhead. Led the implementation of CI/CD pipelines with GitHub Actions and Jenkins, cutting deployment errors by 60% and improving deployment efficiency. Collaborated closely with frontend teams to build React.js-based admin tools, integrating APIs and ensuring smooth data flow between backend and UI, while mentoring junior developers on best practices.

Full Stack Developer at MasterWord Services

March 1, 2013 - March 1, 2016

Led the development of Angular-based front-end interfaces for a client data management system, ensuring a responsive, accessible, and seamless user experience; integrated REST APIs built with Java and Spring Boot to optimize data flow for real-time UI interactions. Contributed to system scalability by supporting the transition from monolithic to microservices architecture, enhancing frontend modularity and reducing maintenance overhead.

Full Stack Developer at Redfin

August 1, 2012 - March 1, 2013

Developed React.js components to build a responsive UI for real estate listings. Enhanced property search and filter features, improving user experience. Integrated AWS S3 for efficient media storage, reducing bandwidth costs by 30%.