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$30 USD / hour
Flag of CHINA
gongzhu town xinmin city, china
$30 USD / hour
It's currently 9:02 AM here
Joined January 26, 2021
1 Recommendation

Chang Shan W.

@changshanlife

monthly-level-two.svg
5.0 (4 reviews)
3.9
3.9
100%
100%
$30 USD / hour
Flag of CHINA
gongzhu town xinmin city, china
$30 USD / hour
100%
Jobs Completed
100%
On Budget
61%
On Time
67%
Repeat Hire Rate

Sr. Software Engineer - Python | Node.js

Experienced Software Developer adept in bringing forth expertise in the design, installation, testing and maintenance of software systems. Proficient in various platforms, languages. Experienced with the latest cutting-edge development tools and procedures. Able to effectively self-manage during independent projects, as well as collaborate as part of a productive team. Skillset & Experience: - Web development: * Back-end: NEST/NodeJS, Django/Flask, Express.js, Celery, RabbitMQ * Database: Reddis, MySQL, PostgreSQL, MongoDB, Firestore * Cloud services: AWS (EC2, S3, Lambda, API Gateway, RDS, DynamoDB, SES, SQS, SNS, Cloudfront), GCP (Compute Engine, App Engine, Cloud Storage, Cloud SQL, Pub/Sub, Cloud Functions), Firebase * Front-end: React.js/Vue.js - Data Engineering * Apache Airflow with Celery, Redis * Elasticsearch, Logstash, Kibana * AWS Data Engineering Services - S3, Redshift, RDS, DynamoDB, Lambda, Kinesis, Athena, QuickSight, AWS Data Pipeline, Amazon Managed Workflows for Apache Airflow * GCP Data Engineering Services - BigQuery, Cloud Dataflow, Cloud Pub/Sub, Cloud Storage, Cloud SQL, Cloud Functions, Cloud Composer, Cloud Run * Kubernetes on Digital Ocean, AWS and GCP - NLP & Computer Vision with ML/DL * Natural Language Processing: Embedding feature extraction, Semantic meaning analyzing and classification, Similarity analyzing * Computer Vision: Image filtering, Geometric or radiometric calibration, Lens distortion, Stabilization, Stitching, Similarity analyzing, Object detection, Recognition, Tracking, Identification, Segmentation * Chatbot: RASA, Google Dialogflow * Libraries and frameworks: Spacy, NLTK, Gensim, Tensorflow, Keras, PyTorch, Sklearn If you want to turn your ideas into working software and make your business thrive, please feel free to contact me. Cheers!

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Portfolio

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Reviews

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Showing 1 - 4 out of 4 reviews
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5.0
$60.00 USD
Chang did the job very well. We will hire again.
PHP
Data Entry
Web Scraping
Software Architecture
Node.js
M
Flag of Maria G.
@mdimi
7 months ago
5.0
$300.00 USD
The best freelancer i've worked with. Only person I go to for nearly any task/
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Flag of Ahmed A.
@mzhao224
3 years ago
5.0
$350.00 USD
Excellent work, needed the project done asap and he delivered with great quality on time within a day. Will definitely be coming to him again. There aren't many people on freelancer that are as well qualified in production quality ETL development as Chang
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Flag of Ahmed A.
@mzhao224
3 years ago
5.0
$75.00 CAD
Incredible work. I will definitely be hiring him again soon.
SQL
Web Scraping
cURL
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Flag of Lucas S.
@boomtsi
3 years ago

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