Shanglun Wang
Verified Expert in Engineering
Python Developer
New York, NY, United States
Toptal member since December 16, 2016
Sean is a dedicated developer with ten years of experience in full-stack web development, system administration, and data science. Proficient in both Linux and Windows environments, he has successfully created a diverse range of applications, from machinery interfaces to market intelligence software. Beyond his technical skills, Sean is also a polyglot and an excellent communicator who enjoys spending his spare time coaching speech and debate.
Portfolio
Experience
- C - 6 years
- Python - 6 years
- C++ - 6 years
- Node.js - 4 years
- MySQL/MariaDB - 4 years
- Flask - 3 years
- SQLAlchemy - 3 years
Availability
Preferred Environment
Vim Text Editor, Visual Studio, PyCharm, Windows, Linux
The most amazing...
...piece of software I've developed can decode Chinese-written news articles and extract market intelligence data for an English-speaking audience.
Work Experience
Quantitative Developer
Quantitative Startup
- Wrote second generation risk mitigation algorithms using Python and Pandas.
- Developed web applications using Meteor and React to facilitate client engagement.
- Built proprietary risk-compression optimized data pipeline engine allowing for intelligent reporting, warm restarts, improved logging, and parallel processing.
Full-stack Software Developer
CB Insights
- Developed market intelligence software using Java and Python natural language processing technology that allowed investment information to be extracted from Chinese news sources.
- Managed and developed a data ingestion system for funding and company valuation data—including monitoring, reporting, and load-balancing systems.
- Designed, developed, and maintained client-facing React web applications to manage and display data on the CB Insights platform.
- Built microservices based on Node.js, Swagger.io, Thrift, and Docker to improve system reliability and internal API consistency.
- Built and created custom email-tracking software to improve targeted email marketing and outreach.
- Developed and maintained Go REST APIs to power the main data visualization and management platform.
Software Developer
Digital Vision, Inc.
- Conceived and developed a software suite to monitor and analyze breakage statistics and inspection results in optical manufacturing laboratories which helped bring breakage rates to industry record lows.
- Worked with outside software vendors to developed and maintain XML endpoints for integration with third-party products.
- Managed CentOS/RHEL data server running LVM and ZFS and developed data monitoring software using Python, PHP, MySQL, and JavaScript.
- Developed a suite of GUI and command-line applications to manage inventory and automate monthly and replenishment ordering of optical lenses.
- Provided onsite support and trained customers in order to improve customer effectiveness in using the software system.
Experience
Sentiment Analysis Bot
https://github.com/shanglun/SentimentAnalyzerI use Python, Flask, Apache Thrift, Java, and Stanford's NLP Library. I also used SendGrid and the Twilio API to build email and text message integrations.
Education
Bachelor's Degree in Economics-Mathematics
Whitman College - Walla Walla, WA, USA
Skills
Libraries/APIs
React, Node.js, Lodash, Chai, Stanford NLP, PhantomJS, SQLAlchemy, Flask-RESTful, Pandas, Twilio API
Tools
Mocha, Jira, Stanford NER, PyCharm, Visual Studio, Vim Text Editor, SendGrid
Languages
Go, JavaScript, Java, C, Python, C++, C#, Clojure, PHP
Frameworks
ASP.NET, Apache Thrift, Flask, Swagger
Platforms
Meteor, Amazon Web Services (AWS), Windows, Linux
Storage
Microsoft SQL Server, MySQL/MariaDB, MongoDB, MySQL
Paradigms
Agile Software Development
Other
Mixed-integer Linear Programming, Operations Research, HTML Parsing (Cheerio), WebSockets, Natural Language Processing (NLP), Full-stack, Front-end Development, Generative Pre-trained Transformers (GPT), Offensive Security, Economics
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