John Kim
Woodbridge,VA
Summary
Seasoned lead software engineer well versed in back-end development with recent experience in data lakes. In the last 10 years, I have developed and maintained data visualization software, delivered projects and version updates on tight deadlines, and worked on natural language processing software with machine learning tools.
Overview
2
2
Languages
11
11
years of professional experience
Work History
Lead Engineer
Booz Allen Hamilton
04.2023 - Current
- Supported DOD contract for the FoCUS program, which provides detection and engagement against unarmed aerial surveillance, starting in an R&D environment to product delivery and transition into a production-based system
- Redesigned the course of action recommendation system and implemented a response core that allows users to select actions against UAV threats
- Created and managed multiple services for handling different sensor systems on a Linux platform using a Redis back-end.
- Led effort to comply with government client standards on safety and security
Data Engineer
BEAT LLC
01.2022 - 01.2023
- Developed back-end services for data lake supporting the DRTF at Coast Guard
- Created user information system and REST endpoints to process and transform data
- Created asset system from scratch to support tracking of personnel and material assets
- Created notional datasets to support application testing
- Utilized AWS Lake Formation and S3, as well as Ansible for Infrastructure-as-Code solutions
- Designed ETL Process for unstructured, old, scattered data to be processed into the data lake
- Major Accomplishments: Built the back-end skeletal frame for a data lake from scratch and provided most of the end points. Was heavily involved in design decisions for the back-end as well as talking to the clients in the Coast Guard to define customer needs.
- Designed and implemented data pipelines to support analytics and reporting initiatives.
Senior Software Engineer
Culmen International LLC
08.2019 - 12.2021
- Developed and maintained new features in a web-based data visualization software using tech stack including Google Web Toolkit, NodeJS, H2 DB, PostgreSQL, and AWS
- Redesigned multiple parts of the GUI and updated legacy code to ensure cross browser support
- Finalized and delivered version updates to clients, assisted in writing up documentation for user guides
- Created new logging and user management systems from scratch and connected them to preexisting software
- Worked on data visualization software for an FDA project involving Neo4J, H2 database using d3. development and maintain data integrity
- Major Accomplishments: Developed many new features and maintained/fixed legacy code on an enterprise software for data visualization. Provided guidance on a new project for the FDA, writing and maintaining back-end structure.
Software Engineer
Decisive Analytics Corporation
04.2016 - 10.2018
- Developed Natural Language Processing solution using semantic role labeling, statistical topic modeling, and entity extraction and disambiguation on high volumes of unstructured and structured text
- Improved and optimized an entity disambiguation tool aimed to automatically extract entities from multi-source datasets and model them with attributes and relationships
- Developed back-end database structures and front-end RESTful web service
- Delivered solution to clients via Docker, setting up mini Accumulo clusters and preingested datasets
- Contributed to writing multiple SBIR proposals on topics such as multiple target motion tracking through unsupervised feature learning with convolutional neural networks
- Major Accomplishments: Provided solutions for increasing the F1 score of the entity disambiguation tool from 0.70-0.73 to 0.93-0.96. Delivered the final product of a 6-year BAA single handedly in the final weeks of the project via Docker and setting up mini Accumulo clusters.
Software Developer
Syntelic Solutions Corporation
06.2015 - 03.2016
- Designed, developed, and implemented interfaces using C# and .NET Framework to import and/or export data
- Worked with various different API’s to make web service calls on RESTful web services as well as SOAP web services
- Implemented algorithms for route optimization and interpretation of client data to effectively present summaries and reports
- Consistently tested and debugged existing code using Visual Studio and Microsoft SQL Server Management Studio
- Developed and implemented security measures such as Active Directory Single Sign-on consulting (Requirements and Website Analyses)
- Major Accomplishments: Increased route optimization for huge trucking companies such as US FOODS by nearly 30% via improvements to the algorithm.
Education
Master of Arts - Computer Science
University of Virginia
Charlottesville05-2014
High School Diploma -
Thomas Jefferson High School For Science And Technology
Alexandria, VA06-2010
Skills
- Java
- Apache Spark
- Containerization expertise with Docker
- PostgreSQL
- Accumulo
- Data Integration
- REST
- NodeJS
- Python
- Data Visualization
- Spark
- Spring
- Express
- RDBMS
- Redis
- Ansible
- Jenkins
- Gitlab
- Windows
- Unix/Linux
Languages
English
Native or Bilingual
Korean
Native or Bilingual
Timeline
Lead Engineer
Booz Allen Hamilton
04.2023 - Current
Data Engineer
BEAT LLC
01.2022 - 01.2023
Senior Software Engineer
Culmen International LLC
08.2019 - 12.2021
Software Engineer
Decisive Analytics Corporation
04.2016 - 10.2018
Software Developer
Syntelic Solutions Corporation
06.2015 - 03.2016
Master of Arts - Computer Science
University of Virginia
High School Diploma -
Thomas Jefferson High School For Science And Technology