JRoy

JRoy

Full Stack Python Developer
United States of America
English

About Me

Full-Stack Python Developer with 11 years of experience in designing, developing, and optimizing high performance applications across web, desktop, data science, and cloud environments. Proficient in a diverse range of P…

Experience

Full Stack Python Developer

TETRA TECH
Jul 2022 - Present · 4 years

Designed and deployed high-performance RESTful APIs using Django REST Framework and Flask, processing 10M+ monthly transactions.
Developed scalable microservices with FastAPI and Docker, improving response times by 40%.
Built real-time data dashboards with Plotly Dash and Flask for business intelligence.
Integrated AI-driven recommendation engines into cloud services using AWS Lambda and S3.
Led monolithic-to-microservices migration, ensuring seamless Kubernetes deployments.
Automated CI/CD pipelines with GitHub Actions and Jenkins, streamlining testing and deployment.
Mentored junior developers in Python best practices, test-driven development, and data processing.
Managed cloud infrastructure with AWS (EC2, S3, Lambda, RDS) for high availability.
Implemented OAuth2, JWT authentication, and role-based access control (RBAC) for API security.
Optimized database performance with PostgreSQL, MySQL, and MongoDB, ensuring efficient queries.
Designed asynchronous task processing with Celery & Redis, improving background job execution.

Full-Stack Python Developer

Remote
Jul 2022 - Present · 4 years

Designed and deployed high-performance RESTful APIs using Django REST Framework and Flask, processing 10M+ monthly transactions.
Developed scalable microservices with FastAPI and Docker, improving response times by 40%.
Built real-time data dashboards with Plotly Dash and Flask for business intelligence.
Integrated AI-driven recommendation engines into cloud services using AWS Lambda and S3.
Led monolithic-to-microservices migration, ensuring seamless Kubernetes deployments.
Automated CI/CD pipelines with GitHub Actions and Jenkins, streamlining testing and deployment.
Mentored junior developers in Python best practices, test-driven development, and data processing.
Managed cloud infrastructure with AWS (EC2, S3, Lambda, RDS) for high availability.
Implemented OAuth2, JWT authentication, and role-based access control (RBAC) for API security.
Optimized database performance with PostgreSQL, MySQL, and MongoDB, ensuring efficient queries.
Designed asynchronous task processing with Celery & Redis, improving background job execution.

Senior Python Developer

Tetra Tech
May 2019 - Jun 2022 · 3 years 1 month

Developed a Django + React e-commerce platform, increasing user engagement by 25%.
Optimized backend workflows with Celery and RabbitMQ, improving system reliability.
Built ETL pipelines using Apache Airflow, reducing reporting delays by 50%.
Enhanced API performance with SQLAlchemy optimizations and Redis caching.
Integrated third-party APIs (Stripe, PayPal, social media) for seamless payments and user interactions.
Implemented automated testing frameworks, achieving 90% code coverage and 60% fewer production
bugs.
Led DevOps initiatives, containerizing applications with Docker and deploying on AWS ECS.

Senior Python Developer

Tetra Tech | Remote
May 2019 - Jun 2022 · 3 years 1 month

Developed a Django + React e-commerce platform, increasing user engagement by 25%.
Optimized backend workflows with Celery and RabbitMQ, improving system reliability.
Built ETL pipelines using Apache Airflow, reducing reporting delays by 50%.
Enhanced API performance with SQLAlchemy optimizations and Redis caching.
Integrated third-party APIs (Stripe, PayPal, social media) for seamless payments and user interactions.
Implemented automated testing frameworks, achieving 90% code coverage and 60% fewer production bugs.
Led DevOps initiatives, containerizing applications with Docker and deploying on AWS ECS.

Python Software Engineer

GENESIS IT LAB
Jun 2016 - Apr 2019 · 2 years 10 months

Developed a logistics tracking system with Flask and MongoDB, improving supply chain efficiency.
Conducted large-scale data analysis using NumPy and Pandas, generating insights for finance teams.
Built NLP models with NLTK and spaCy for text classification.
Designed SOAP & REST APIs, ensuring compatibility across legacy and modern systems.
Optimized PostgreSQL queries, reducing execution time and database overhead.
Automated recurring tasks, saving 500+ hours annually through Python scripting.
Ensured code reliability with PyTest-driven unit and integration testing.

Python Software Engineer

Genesis IT Lab
Jun 2016 - Apr 2019 · 2 years 10 months

Developed a logistics tracking system with Flask and MongoDB, improving supply chain efficiency.
Conducted large-scale data analysis using NumPy and Pandas, generating insights for finance teams.
Built NLP models with NLTK and spaCy for text classification.
Designed SOAP & REST APIs, ensuring compatibility across legacy and modern systems.
Optimized PostgreSQL queries, reducing execution time and database overhead.
Automated recurring tasks, saving 500+ hours annually through Python scripting.
Ensured code reliability with PyTest-driven unit and integration testing.

Juinor Python Developer

Airbnb
Jun 2013 - May 2016 · 2 years 11 months

Contributed to a Django-based client management system, streamlining onboarding workflows.
Improved frontend responsiveness using AJAX and jQuery with Flask backends.
Automated data extraction from multiple sources with BeautifulSoup and Selenium.
Developed batch-processing scripts for financial data, optimizing reporting efficiency.
Created data exploration prototypes in Jupyter Notebooks.
Assisted in code reviews, enforcing PEP 8 standards and clean documentation.

Junior Python Developer

Airbnb
Jun 2013 - May 2016 · 2 years 11 months

Contributed to a Django-based client management system, streamlining onboarding workflows.
Improved frontend responsiveness using AJAX and jQuery with Flask backends.
Automated data extraction from multiple sources with BeautifulSoup and Selenium.
Developed batch-processing scripts for financial data, optimizing reporting efficiency.
Created data exploration prototypes in Jupyter Notebooks.
Assisted in code reviews, enforcing PEP 8 standards and clean documentation.

Skills

Bootstrap MySQL Python Data Science DevOps Flask Full Stack Development Git and GitHub GraphQL JavaScript NumPy Oracle SQL Professional Typescript Vue.js Angular CI/CD Machine Learning Program Development Programmable Logic Controllers Project Scheduling React Build Automation Programming Programming & Web Development: Python (2.x–3.x), JavaScript, TypeScript, HTML5, CSS3 TypeScript HTML5 CSS3 Django FastAPI Pyramid Tornado Bottle Flask-Bootstrap Jinja2 Templates RESTful APIs gRPC WebSockets Socket.IO Celery Pandas SciPy TensorFlow PyTorch Scikit-learn Keras OpenCV Hugging Face NLTK spaCy Gensim Apache Spark PySpark Hadoop Apache Kafka Apache Airflow Snowflake PostgreSQL SQLite MongoDB Cassandra Redis DynamoDB SQLAlchemy PyTest Unittest
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