Senior API/Java/Python Developer Job at Vantor, Arlington, TX

  • Vantor
  • Arlington, TX

Job Description

Salary: $170,000 - 210,000 per year Requirements:

  • U.S. citizenship and an active U.S. Government TS/SCI clearance with CI Polygraph are required; employment is contingent on verification of clearance status.
  • A bachelors degree and at least five years of experience.
  • Proficiency in Java and/or Python and related frameworks such as Spring Boot, Flask, or Django.
  • Strong knowledge of API architectures, including REST, GraphQL, or SOAP, and API development tools such as Postman or Swagger UI.
  • Familiarity with SQL and/or NoSQL databases and version control systems such as Git.
  • Knowledge of software development methodologies such as Agile or Scrum.
  • Strong problem-solving skills and the ability to work both independently and collaboratively.
  • Experience with cloud platforms such as AWS, Azure, or GCP, and familiarity with containerization tools such as Docker or Kubernetes.
  • Some roles may be subject to U.S. export control laws requiring U.S. person status as defined by 8 U.S.C. 1324b(a)(3).
Responsibilities:
  • Design, develop, test, and deploy scalable applications and APIs in Java and Python, writing clear, efficient, well-documented code.
  • Build RESTful APIs and microservices, support secure communication between systems, and integrate third-party APIs and services.
  • Use SQL and NoSQL databases, such as PostgreSQL, MongoDB, or MySQL, to store and retrieve data.
  • Work with frontend developers, product managers, and QA teams to define requirements, integrate components, and ensure functionality.
  • Improve code and system performance, troubleshoot problems, and follow security best practices for data handling and API authentication.
  • Where applicable, integrate cloud services and APIs, including AWS or Azure, for cloud-native solutions and deployments.
  • Maintain, support, and enhance existing applications and APIs.
Technologies:
  • API
  • AWS
  • Azure
  • Backend
  • Cloud
  • Django
  • Docker
  • Flask
  • Frontend
  • GCP
  • Git
  • GraphQL
  • Support
  • Java
  • Kubernetes
  • MongoDB
  • MySQL
  • NoSQL
  • PostgreSQL
  • Postman
  • Python
  • REST
  • SOAP
  • SQL
  • Security
  • Spring
  • Spring Boot
  • Swagger
  • microservices
  • UX UI Design

More:

We are Vantor, a spatial intelligence company helping decision makers and operators understand current conditions and prepare for what comes next. Our teams work collaboratively to advance customer capabilities and support national security missions. This Backend Developer role is part of our Intel sector and focuses on software applications and APIs, with opportunities involving backend development, integrations, and cloud-based solutions. The advertised base pay is $170,000–$210,000; starting compensation depends on job-related factors, location, and market conditions, and candidates meeting only the minimum qualifications should not expect the top of the range. We offer a competitive rewards package that includes a 401(k) with company match, mental health resources, student loan repayment assistance, adoption reimbursement, and pet insurance. The application window is three days from posting and may remain open until a qualified candidate is identified. Apply through our Careers page. We are an equal opportunity employer committed to an inclusive workplace.

last updated 40 week of 2026

Job Tags

Full time

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