Tiejun Zheng

Full Stack DevOps Engineer

Self-Employed•  September 2022 - Present•  Yanji, China

- Walked through Udemy AWS DevOps Expert online courses for 3 months - Studied AWS Serverless, Lambda, SAM, CDK, Kubernetes, Ansible, Terraform, Puppet for 6 months and built infrastructure for a small flask project myself using Serveless/Lambda/Kubernetes. - Used OpenAI/Twilio service to create chatbot and voice chat - Played around Llama index to build LLM applications and have junior level of knowledges about LLM Technologies: Kubernetes, Ansible, Terraform, Firebase, Git, Github, Bitbucket, CI/CD

Full Stack Python/React/DevOps Engineer

Best Soft Inc•  May 2020 - September 2022•  Beijing, China

- Developed Marketplace frontend using Shopify where the customers can purchase phygital NFTs. - Developed Marketplace backend using Flask & PostgreSQL. - Developed Wallet frontend using React, Typescript, Tailwind - Developed chatbot Technologies: Django, Python, React, Angular, Amazon Web Service, Tailwind, Flask

Python Automation Engineer

Intelligenti•  October 2018 - April 2020•  São Paulo, Brazil

- Automated the company’s daily report process using RPA technology and classified a massive amount of data using scikit-learn and XGBoost packages - Built a patient survey application where patients book an appointment and submit their health/disease symptoms, and a doctor application where the doctors can check the patient symptoms and diagnose. - Used python selenium and pywinauto packages to automate both website and desktop application that automatically exports patient encounter. Technologies: Django, Angular, Celery, AWS SQS, Multi-threading

React/Django Developer

Benji•  September 2016 - September 2018•  New York, United States

- Company Description: Startup Company founded by very smart business investors like Paul Graf and Paul Amorese. - Contribution: Technical Leader, Product Design, Team Management, Daily Presentation, DevOps Engineer, React Developer Technologies: Jira, BitBucket, AWS, Python, Django, React/Redux, Docker, Docker Compose

Full Stack Python Developer

italyMONDO!•  July 2013 - September 2016•  West Charlton, NY, United States

- Built an e-commerce website that sells downloadable products like books, songs and games using Django Oscar. - Built English learning platform that supports both free and premium service where every learners are wowed and entertained to learn. - Built multi-vendor SAAS application that allows startups to easily find local, readily available talented students and let the students to connect with innovative startups vice-versa. - Work with IoT, AWS gathering data from sensors, analyzing & visualization Technologies: Python, Django, Angular, PostgreSQL, Stripe, AWS, DigitalOcean, Bluehost, Github, Bitbucket