Graph Database Engineer

⭐ - Featured Role | Apply direct with Data Freelance Hub
This role is for a Graph Database Engineer in Chantilly, VA, requiring an active TS/SCI w/ Polygraph. Key skills include Python, NodeJS, and graph databases (e.g., JanusGraph). Must have 5+ years in software development and systems integration.
🌎 - Country
United States
💱 - Currency
Unknown
💰 - Day rate
Unknown
Unknown
🗓️ - Date discovered
April 16, 2025
🕒 - Project duration
Unknown
🏝️ - Location type
On-site
📄 - Contract type
Unknown
🔒 - Security clearance
Yes
📍 - Location detailed
Chantilly, VA
🧠 - Skills detailed
#Graph Databases #Kubernetes #AWS Lambda #Indexing #CircleCI #Code Reviews #MongoDB #Jenkins #Data Normalization #Lambda (AWS Lambda) #SQS (Simple Queue Service) #AWS (Amazon Web Services) #Databases #Linux #Automation #Normalization #Data Modeling #Elasticsearch #Scala #GIT #Computer Science #Python
Role description

Title: Graph Database Engineer Location: Chantilly, VA

   • Clearance:

   • Active TS/SCI w/ Polygraph needed to apply

   • Company Overview:  Cornerstone Defense is the Employer of Choice within the Intelligence, Defense, and Space communities of the U.S. Government. Realizing early on that our most prized assets are our employees, we continually focus our attention on improving the overall work/life experience they have supporting the mission. Our Team is pushed every day to use their industry leading knowledge to provide end-to-end solutions to combat our nation’s toughest and most secure problems. If you are looking for a place to not only be professionally challenged, but encouraged and supported by a company that cares, don’t look any further than Cornerstone Defense.  JOB DESCRIPTION We are looking for an experienced Systems Software Engineer to join our team, interested in designing, developing and maintaining essential software systems. The optimal candidate will have demonstrated experience integrating solutions with graph databases, such as JanusGraph. They will also have a strong background in systems software development, experience with 3rd party system integration, expertise in ElasticSearch, and a solid understanding of data modeling concepts. This is a fantastic opportunity to work on a challenging project that requires innovative solutions and collaborative problem-solving.  KEY RESPONSIBILITIES

Design, develop, test, and deploy scalable and efficient software solutions

  Collaborate with cross-functional teams to identify and prioritize project requirements

  Participate with code reviews and ensure high-quality, modular, and reusable code

  Troubleshoot and debug issues in the application, including performance optimization and error handling

  Stay up-to-date with industry trends and emerging technologies, applying this knowledge to improve our application

  Design and implement data models that meet the needs of the application, ensuring data consistency and integrity

   EDUCATION AND EXPERIENCE

Bachelor’s Degree in Computer Science, Electrical or Computer Engineering or a related technical discipline, or the equivalent combination of education, technical training, or work/military experience.

  5+ years of related software development experience.

   REQUIRED QUALIFICATIONS

Extensive expertise in Python and NodeJS

  5+ years of experience in systems software development in NodeJS or Python

  Strong proficiency working with graph databases (for example JANUS Graph) and graph query languages

  Proven experience with 3rd party system integration using APIs, webhooks and other integration methods

  Strong understanding of software design patterns, principles and best practices

  Excellent problem-solving skills, with the ability to work effectively in a team environment

  Basic understanding of data modeling concepts, including entity-relationship, data normalization, and denormalization

  Experience with Git workflows, including feature branching, pull requests and code reviews

  Ability to work effectively in a Linux-based development environment

   DESIRED QUALIFICATIONS

Hands on experience with AWS Lambda, EventBridge and SQS

  Experience with Node.js, Express, MongoDB and Cassandra

  In-depth knowledge of ElasticSearch, including indexing, querying and aggregation

  Knowledge of containerization leveraging Kubernetes

  Familiarity with CI/CD pipelines and automation tools such as Jenkins or CircleCI

  Hands-on experience working with message brokers such as RabbitMQ or AWS SQS