Senior Ontology & Knowledge Graph Lead

InvestedintheMission; Herndon (VA); On-site; USD 140,000 - 206,000; Full time

Benefits offered by this job

401(k) with company match

Student loan repayment assistance

Adoption reimbursement

Pet insurance

Job summary

Vantor seeks a Senior Developer to design, develop, and maintain mission-critical software supporting Object-Based Intelligence. You will build semantic data integration, ontologies, and knowledge graphs, delivering secure, scalable applications in an Agile DevSecOps environment.

Responsibilities include API and backend development, knowledge graphs, RDF/OWL/SPARQL, and collaboration with Government stakeholders. Clearances and cloud-native delivery are essential.

Qualifications

• U.S. citizen with active TS/SCI clearance and CI polygraph.
• 10+ years experience or 15+ years with a bachelor’s degree in software development.
• Experience building enterprise software with Java, Python, or C#.
• Proven RESTful API, microservice, and distributed app development.
• Experience with relational/graph databases and enterprise data platforms.

Responsibilities

• Design, develop, test, deploy, and maintain enterprise software supporting OBI missions.
• Build scalable backend services, APIs, and user interfaces with semantic tech.
• Collaborate with engineers and Government stakeholders in an Agile DevSecOps setup.
• Develop secure, containerized apps using cloud-native technologies.
• Guide junior developers and contribute to technical design and CI/CD.

Skills

Java

Python

C#

RESTful APIs

Microservices

Docker

Kubernetes/OpenShift

Git

Semantic Web

Communication

Education

Advanced degree

Bachelor's degree

Tools

RDF

OWL

SPARQL

Java

Python

C#

OpenShift

AWS

Job description

Vantor seeks a Senior Developer to design, develop, and maintain mission-critical software supporting Object-Based Intelligence. You will build semantic data integration, ontologies, and knowledge graphs, delivering secure, scalable applications in an Agile DevSecOps environment.

Responsibilities include API and backend development, knowledge graphs, RDF/OWL/SPARQL, and collaboration with Government stakeholders. Clearances and cloud-native delivery are essential.