Senior Software Engineer

Vantor Inc.; Arlington (VA); On-site; USD 137,000 - 200,200; Full time

Benefits offered by this job

401(k) with company match

Student loan repayment assistance

Adoption reimbursement

Pet insurance

Job summary

Vantor Inc. is seeking an API/Java/Python Developer in Arlington, Virginia, to provide system and software engineering services for U.S. Government clients. Key responsibilities include designing and maintaining RESTful APIs and microservices, while collaborating closely within Agile environments.

The ideal candidate will hold a Bachelor's degree in a relevant field and possess 2-5 years of experience. The position offers a competitive salary range from $137,000 to $200,200 annually, along with a comprehensive benefits package including 401(k) matching and mental health resources.

Qualifications

• Must be a U.S. Citizen with an active TS/SCI clearance with CI poly.
• 2-5 years of experience in software development.
• Experience building RESTful APIs and backend integrations.

Responsibilities

• Design and maintain RESTful APIs and microservices using Java and Python.
• Collaborate to implement end-to-end solutions.
• Support cloud-native deployments and secure software development.

Skills

Java

Python

RESTful APIs

Agile methodologies

Git

Education

Bachelor's degree in Computer Science or related field

Tools

Spring Boot

Kubernetes

Docker

AWS

Google Cloud

Job description

To be eligible for this position, you must be a U.S. Citizen. This position requires an active U.S. Government security clearance, applicants who do not currently hold the required clearance will not be eligible for consideration. Employment for cleared roles is contingent upon verification of clearance status.

Export Control/ITAR: Certain 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).

This position requires an active U.S. Government Security Clearance at the TS/SCI level with a CI polygraph.

We're hiring an API/Java/Python Developer to join our Services team, which works directly with U.S. Government customers to provide a comprehensive set of system/software engineering and information technology services to maintain, sustain, enhance, and improve/modernize a Program of Record for all-source Foundational Military Intelligence (FMI).

This position focuses on developing high-performance API-driven services and data-ingest pipelines that drive Analytic Data Organization, Entity Extraction, and Modernized Storage paradigms. A primary focus of this role is writing secure, cloud-ready code optimized for a Develop‑Low / Deploy‑High (L2H) workflow‑utilizing established unclassified enterprise development ecosystems to build and test software that will safely promote across accredited cross-domain solutions into high‑side, air‑gapped operational networks.

Responsibilities

• Design, develop, and maintain RESTful APIs and microservices using Java and Python frameworks.
• Build and integrate backend services, data pipelines, and enterprise application components.
• Collaborate with systems engineers, data engineers, and UI/UX developers to implement end‑to‑end solutions.
• Develop automated testing, CI/CD pipelines, and deployment processes within Agile environments.
• Troubleshoot application defects, performance issues, and integration challenges across distributed systems.
• Support cloud‑native deployments, containerization, and secure software development practices.

Minimum Qualifications

• Must be a U.S. Citizen with an active TS/SCI clearance with CI poly.
• 2‑5 years of experience.
• Bachelor's degree in Computer Science, Software Engineering, or related technical discipline.
• Experience developing applications using Java and Python.
• Experience building RESTful APIs, web services, and backend integrations.
• Familiarity with relational and NoSQL databases and SQL development.
• Experience with Git, version control systems, and Agile software development methodologies.

Preferred Qualifications

• Experience with Spring Boot, Flask, FastAPI, Django, or similar frameworks.
• Familiarity with Kubernetes, Docker, and cloud platforms such as AWS, Google Cloud, or Azure.
• Experience supporting DevSecOps and CI/CD pipeline implementation.
• Knowledge of microservices architecture, event‑driven systems, and API gateway technologies.
• Security+ certification or familiarity with secure coding and RMF principles.
• Experience supporting DoD, Intelligence Community, or other federal government programs.

Pay Transparency

To support pay transparency, Vantor includes salary ranges in all U.S. job postings. Starting pay for this role will fall within the listed range and will be based on factors such as experience, qualifications, skills, location, and market conditions. Candidates who meet the minimum requirements for the role should not expect to receive compensation at the top of the range. The listed range reflects the expected pay for this position, and final offers will be determined based on each candidate's experience, expertise, and alignment with the role.

The base pay for this position within the Washington, DC metropolitan area is: $137,000.00 - $182,000.00 - $200,200.00 annually.

For all other states, we use geographic cost of labor as an input to develop market‑driven ranges for our roles, and as such, each location where we hire may have a different range.

Benefits

Vantor offers a competitive total rewards package that goes beyond the standard, including a robust 401(k) with company match, mental health resources, and unique perks like student loan repayment assistance, adoption reimbursement and pet insurance to support all aspects of your life. You can find more information on our benefits at https://www.Vantor.com/careers

EEO Policy

Vantor is an equal opportunity employer committed to an inclusive workplace. We believe in fostering an environment where all team members feel respected, valued, and encouraged to share their ideas. All qualified applicants will receive consideration for employment without regard to race, color, religion, national origin, sex, gender identity, sexual orientation, disability, protected veteran status, age, or any other characteristic protected by law.