I have over five years of experience in Python, Django, database design and optimization. I have worked in various roles, including Back-End Development, DevOps (AWS), Full-Stack Development (ReactJS), Data Engineering, and AI. My focus is on gathering and analysing requirements, designing and implementing solutions, debugging, researching and applying new techniques, conducting code reviews, and supporting team members. I excel in optimization through my expertise in data structures and algorithms, multiprocessing and multithreading, asynchronous programming, and background task management.

Programming Languages: Python, JavaScript, C/C++

Skills: 

• Other languages: Bash (3y), Go, Ruby  

• Frameworks: Django, Flask, FastAPI, Sanic, PostgREST, ReactJS  

• Databases: MySQL, Postgres, Mongo Model, Redis, Attic  

• Optimization: structures and algorithms, multiprocessing and multithreading, asynchronous programming, and background task management.  

• Pattern: SaaS, MVT, MVC, CQRS  

• Clouds: AWS (5y), Alibaba (1y)  

• Positions: Back-End (5+y), DevOps (2y), Full-Stack (1y), Data Engineer (1y), AI (1y).  

• Data Crawl, Data Pipeline, Data Processing, Data Visualization.

Tools:  

• Exception handler: Sentry, AWS Cloud Watch  

• Crawler: Beautiful soup, Selenium  

• Testing: Postman, Selenium (Web extension + code), Unit test, Pytest.  

• Authentication: Keycloak  

• Third Parties: Twilio (API SMS), SendGrid (Email Center).  

• Work Managements: Jira, Kanban  

AI Project – Australian

AI Engineer, August 2024 – Present

Project description 

• Detect Deception and Recognize Exist user

Responsibilities 

• Collect requirements, implement, deploy and maintain for full project: Backend (Flask), Worker (Celery), Elastic Search (Vector DB).

• Research, implement, study and improve models including face recognition, speech recognition, action recognition, and lie detection.

• Collect and clean data for training purposes. Training model and validating model.

Technologies 

• Models: Deep Face, FairFace, ResNet, MediaPipe, Yolo, RetinaFace, HuggingFace, Multimodal Transformer.  

• Databases: Redis, Elastic Search, Postgres

• Tools: Jupiter Lab, Docker, Celery

• Libraries: torch[Cuda], OpenCV[Cuda], TensorFlow[GPU], MediaPipe, FFmpeg  

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Finance  - US

Data Engineer – Backend Engineer, August 2023 – August 2024

Project description 

• Collect financial reports of companies from many sources, summarize and tabulate data by month, quarter, and year.  

Responsibilities 

• Work with developers from India to get the requirements and integrate the features to deliver for clients. 

• Fix product issue, run CI/CD,

• Optimizing code.

Technologies 

• Django (Backend), Attic (DB), AWS S3/Lambda/DynamoDB/Cloud Watch, Pandas 

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HealthCare – Singapore

Full-Stack Developer, August 2022 – August 2023 

Project description 

• A 3rd party website that helps doctors and nurses manage patients through the web, excel, dashboards and notifications.

• Synchronize data between third parties and customers.  

Responsibilities

• Get requirements, develop, deliver, document features, write unit tests and selenium tests.

• Demo and sale product to clients.

• Build a SFTP server to connect to S3 AWS and OSS Alibaba, a SDK library for reuse in all other repositories, a Data Pipeline system to do some “low code” logic, a module to import and export data from excel file to DB, a reminder system, a pipeline to sync data between 2 systems and an auto crawler system.

• Do the code review session. Suggest solution to refactor and optimize the system Manage daily reports, break down tasks and assign them for team members. 

Technologies

• OSS Alibaba, S3/EC2/RDS/Lambda/Trigger AWS, Pandas, Python Coroutine, SFTP, Crawl data, Unit test, Selenium test, Jupiter Lab, Paramiko 

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Social Media - Singapore 

Backend Developer – DevOps Developer, August 2020 – August 2022

Project description 

• Social network about business cards

• People can share their business cards, and the company can handle their customers’ cards. 

Responsibilities

• Get requirements, develop, test, document, and deploy features.

• Communicate with the Frontend team and App team.

• Design and document database for every version.

• Write unit tests. Handle CI/CD. Deploy products on AWS.

• Build an exception handler, an error notification system, and a mail center. 

Technologies

• Jinja, Twilio, SendGrid, Sentry, Docker, S3/EC2/RDS AWS, Bash, Nginx. 

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HealthCare - Da Nang city, Viet Nam

Backend Developer, February 2018 – August 2020

Project description 

• Health Care echo system: Mail Center, Work Management, User Management, File Management, Authentication

• IDTV (Interactive data visualization)

Responsibilities

• Project Manager of 4 Backend projects: Mail Center, Work Mangement, User Management, MQTT Services

• Get requirements, develop, and maintain features. Deploy products on AWS.

• Create a queue DB. Optimize query databases, and train new members.

• Analyze data, generate reports, optimize query, optimize function (use some algorithm to index and calculate report on indexed data). 

Technologies

• MQTT, Email Server, Python Coroutine, Jinja, Sentry, Docker, S3/EC2/RDS AWS, Redis, Nginx, Sql-Alchemy, Pandas, Redis Cache, Jupiter Lab  

Hacker Rank: SQL (Advanced) Certificate  

ACM ICPC Certificate

Awards:

• 2023: Set questions for the ACM ICPC exam in Central Vietnam.
• 2023: Rank 8 of the Da Nang Code League (Code Master).
• 2019: Lowest rank was 31 in Northern, Central and Southern Provincial Contest but stopped and became co-coach from then.
• 2018: Second prize in Scientific research (Detecting plagiarism in programming).
• 2018: Rank 58 in ICPC Regional Contest.
• 2017: Rank 157 in ICPC National Programming Contest.
• 2017: Champion in Da Nang Programming contest.