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David C. Stein
Mentor
Rising Codementor
US$8.00
For every 15 mins
ABOUT ME
Senior backend developer with 16+ years crafting Java, Python, and C# apps!
Senior backend developer with 16+ years crafting Java, Python, and C# apps!
Hello! I’m an experienced software engineer with 16 years in backend development, specializing in Java, Python, and C#. I hold a BS in Computer Science and an MS in Information Technology. I’ve worked on projects using Micronaut, Spring Boot, and Arduino, and I’m also an artist who loves portrait painting. I enjoy mentoring aspiring developers and sharing my passion for software craftsmanship. Let’s create something amazing together!
Eastern Time (US & Canada) (-04:00)
Joined October 2024
EXPERTISE
10 years experience
I have been working with Java for over a decode both professionally as a backend developer with the Micronaut and Spring Boot frameworks ...
I have been working with Java for over a decode both professionally as a backend developer with the Micronaut and Spring Boot frameworks as well as academically at the university where I completed my BS in Computer Science.
7 years experience
I have worked with C# professionally for a number of years developing ASP.Net and MVC web applications for companies ranging from healthc...
I have worked with C# professionally for a number of years developing ASP.Net and MVC web applications for companies ranging from healthcare to online investigative services.
5 years experience
I used Python professionally for many years to write Apache Airflow DAGs to help facilitate ETL pipelines for data analysis and reporting...
I used Python professionally for many years to write Apache Airflow DAGs to help facilitate ETL pipelines for data analysis and reporting purposes.
12 years experience
I have used SQL throughout my entire career crafting complex sql queries, prepared statements, and stored procedures in a variety of syst...
I have used SQL throughout my entire career crafting complex sql queries, prepared statements, and stored procedures in a variety of systems such as MS SQL Server, PostgreSQL, and MySQL.
REVIEWS FROM CLIENTS
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SOCIAL PRESENCE
EMPLOYMENTS
Development Team Lead
ECFX, Inc.
2020-03-01-Present
- Design and develop microservices using Java and Micronaut to create high-performance RESTful APIs.
- Implement complex data...
- Design and develop microservices using Java and Micronaut to create high-performance RESTful APIs.
- Implement complex database operations using Hibernate ORM and integrated PostgreSQL databases.
- Serve as Lead Developer, mentoring new hires and conducting code reviews to maintain high code quality.
- Develop solutions for document management using OAuth protocols for client systems such as SharePoint, Dropbox, and Box.
- Lead client integration meetings to align enterprise document management systems with company software stack.
Java
SQL
PostgreSQL
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Java
SQL
PostgreSQL
Amazon S3
GitLab
Docker
Kubernetes
Micronaut
AWS
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Data Engineer
Patient Pay
2019-10-01-2020-03-01
- Developed and maintained Airflow DAGs using Python to build ETL pipelines that process complex financial data sets.
- Integ...
- Developed and maintained Airflow DAGs using Python to build ETL pipelines that process complex financial data sets.
- Integrated SQL queries to generate dynamic reports and support data-driven decision-making.
- Collaborated with backend engineers to migrate legacy Java Spring microservices to Python-based Airflow DAGs for improved performance and scalability.
- Deployed ETL jobs and monitored workflow executions using BitBucket pipelines and Git for version control.
Python
Java
SQL
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Python
Java
SQL
MySQL
Jenkins
Docker
Spring Boot
Kubernetes
Apache Airflow
Hibernate ORM
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Senior Software Engineer
Digital Turbine, Inc.
2015-08-01-2020-03-01
- Built and maintained Java Spring microservices to develop RESTful endpoints for processing and querying data in PostgreSQL and My...
- Built and maintained Java Spring microservices to develop RESTful endpoints for processing and querying data in PostgreSQL and MySQL.
- Utilized Docker and Kubernetes for container orchestration, ensuring seamless deployments.
- Led continuous integration efforts with Jenkins, implementing build and release automation with Maven.
- Designed and executed performance tests with JMeter, optimizing application performance for large-scale data operations.
Python
Java
C#
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Python
Java
C#
MySQL
Redis
Docker
Spring Boot
Apache Spark
Amazon Redshift
Kubernetes
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PROJECTS
Document Management Integration for ECFX
2024
Developed microservices to integrate ECFX’s legal management system with third-party document management platforms using OAuth, drastical...
Developed microservices to integrate ECFX’s legal management system with third-party document management platforms using OAuth, drastically reducing processing times.
Java
SQL
Git
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Java
SQL
Git
SDK
Redis
OAuth 2.0
Docker
Kubernetes
Dropbox cloud services
RESTful API
Hibernate ORM
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Performance Optimization for Digital Turbine
2020
Implemented JMeter tests and database indexing strategies for high-traffic microservices.
Implemented JMeter tests and database indexing strategies for high-traffic microservices.
Java
JMeter
Java
JMeter