Senior Ontology & Semantic Data Engineer (TS/SCI)

Vantor Inc.; Herndon (VA); On-site; USD 140,000 - 205,700; Full time

Benefits offered by this job

401(k) with company match

Mental health resources

Student loan repayment assistance

Adoption reimbursement

Pet insurance

Job summary

Vantor Inc. is seeking a Senior Developer to design, develop, and maintain mission-critical applications supporting Object-Based Intelligence, ontologies, knowledge graphs, and semantic data integration.

You will build secure, scalable backend services and APIs, utilize Semantic Web tech, and collaborate with engineers and Government stakeholders in an Agile DevSecOps environment. The role requires deep experience in Java/Python/C#, REST APIs, containers (Docker/Kubernetes/OpenShift), and data

Qualifications

• U.S. citizen with active TS/SCI with CI polygraph.
• 10+ years experience with an advanced degree or 15 years with a bachelor’s degree.
• Experience developing enterprise software using Java, Python, C#, RESTful APIs, microservices, and distributed systems.
• Experience with RESTful APIs, microservices, and distributed applications.
• Experience integrating with relational/graph databases and enterprise data platforms.
• Experience with Docker and Kubernetes/OpenShift.
• Familiarity with Agile, DevSecOps, CI/CD, and Git.

Responsibilities

• Design, develop, test, deploy, and maintain enterprise software applications for Object-Based Intelligence missions.
• Develop scalable backend services, RESTful APIs, and user-facing applications leveraging ontologies and knowledge graphs.
• Implement Semantic Web technologies (RDF, OWL, SPARQL) for data integration and knowledge discovery.
• Collaborate with engineers, data scientists, and government stakeholders to translate mission requirements into software solutions.
• Develop secure, containerized apps and cloud-native solutions; participate in Agile DevSecOps practices.
• Produce design docs, API specs, and operational guides; mentor junior developers.

Skills

Java

Python

C#

RESTful APIs

Microservices

Distributed systems

Agile

DevSecOps

CI/CD

Git

Education

Advanced degree (MS/PhD)

Bachelor's degree + 15 years experience

Tools

Docker

Kubernetes/OpenShift

Job description

Vantor Inc. is seeking a Senior Developer to design, develop, and maintain mission-critical applications supporting Object-Based Intelligence, ontologies, knowledge graphs, and semantic data integration.

You will build secure, scalable backend services and APIs, utilize Semantic Web tech, and collaborate with engineers and Government stakeholders in an Agile DevSecOps environment. The role requires deep experience in Java/Python/C#, REST APIs, containers (Docker/Kubernetes/OpenShift), and data