Jang Si
Mentor
Rising Codementor
US$8.00
For every 15 mins
ABOUT ME
Fueling success with trust and software engineering expertise
Fueling success with trust and software engineering expertise
Fueling success with trust and over a decade of tech expertise: With over 10 years of experience in software engineering and a rich background in mentoring and guiding teams, I am well-equipped to support companies in achieving their goals. My technical skills include:
- JavaScript
- TypeScript
- React
- HTML
- CSS
- Python
- Node.js
- Go
- SQL
- Solr
Coupled with a passion for fostering a positive and productive working environment, drive me to share my knowledge and experiences to propel your projects to success. I understand the value of reliability and stability, and I am committed to bringing these qualities to your team.
Eastern Time (US & Canada) (-04:00)
Joined October 2023
EXPERTISE
6 years experience
5 years experience
5 years experience
3 years experience
3 years experience
5 years experience
4 years experience
REVIEWS FROM CLIENTS
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EMPLOYMENTS
Software Engineer
Fullstory
2019-12-01-Present
- Full-stack, data, search, and AI engineer building analytics products for customers’ digital properties, including the use of sta...
- Full-stack, data, search, and AI engineer building analytics products for customers’ digital properties, including the use of statistical methods and data visualizations to help users understand and utilize their data more effectively
- Invent custom visualizations and graphing libraries, including sankey diagrams and heatmaps using typescript, html, and css to convey complex data in easy to use ways
- Maintain and extend statistical algorithms, including chi squared and binomial tests allowing customers to analyze the impact of certain events in funnel conversion
- Build data streaming pipeline that ingests petabytes of data monthly in real time, extracting signal from behavioral data and indexing it for real time search
- Build and evaluate LLM Agent pipelines in Go and Temporal, implementing tool calling, memory buffers, retrieval-augmented generation, and planning that parse, summarize, and understand the wealth of data we process
- Maintain LLM ops processes, including LangChain to evaluate prompts and outputs as well as upgrading models
HTML/CSS
TypeScript
React
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HTML/CSS
TypeScript
React
Google Cloud Platform
JavaScript
Kubernetes
Golang
Solrcloud
AI
LLM
Llm agents
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Software Engineering Mentor
Thinkful & Springboard
2018-01-01-2025-08-01
- Mentored multiple students on a weekly basis in the Software Engineering track
- Covered a curriculum of topics including b...
- Mentored multiple students on a weekly basis in the Software Engineering track
- Covered a curriculum of topics including beginner and intermediate React, Express, MongoDB, Python, Postgres, and Nodejs
- Successfully guided a student with no technical background from the start of the curriculum to obtaining a full-time job as a Full Stack Developer
Node.js
MongoDB
React
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Node.js
MongoDB
React
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Co-founder, CTO
TopPick
2015-08-01-2019-08-01
- Built and scaled a high performance video interviewing platform used by candidates globally, utilizing React, WebRTC, and browser...
- Built and scaled a high performance video interviewing platform used by candidates globally, utilizing React, WebRTC, and browser Media APIs
- Implement automation pipelines on top of Google Workspace, including APIs for Gmail, Calendar, Meet to scale talent acquisition operations
- Developed a video processing pipeline using Scala, Play, and Ffmpeg on AWS
- Developed and maintained an iOS app for use by candidates in the video interviewing process using React Native
- Developed and supported an operations framework that utilized services such as Pagerduty, Pingdom, Sendgrid, and Twilio using custom, comprehensive health checks embedded in microservices
- Designed and developed Chrome extensions and Microsoft Office Add-ins for Outlook as a product offering to be used by enterprise customers
- Configured and maintained network infrastructure, including VPCs, load balancers, reverse proxies, and firewalls in a multi cloud (AWS, GCP) environment
- Improved and automated processes for Operations, Sales and Marketing, including text mining and structuring data in Python
Python
Scala
MongoDB
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Python
Scala
MongoDB
FFmpeg
Google BigQuery
WebRTC
React
React Native
Play Framework
Google Data Studio
AWS
Google workspace automation
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