Senior Backend Developer, Data Platform

Vantor Services Inc. is seeking a Senior Backend Developer to own the design, construction, and stewardship of backend services and data platform components that underpin modern data pipelines for Intelligence Community AI efforts. You will operate within a hybrid team, balancing hands-on development with architectural decisions to deliver scalable data models and reliable data workflows. The role is based in Reston, Virginia, with a mix of remote and onsite work.

Responsibilities

• Design, build, and own backend services and platform components for a modern data architecture and pipelines
• Make high-impact technical decisions around architecture, data modeling, and system integration
• Develop integrations with internal and external data sources, APIs, and event streams
• Collaborate with data engineering, analytics, and product management to define scalable data models and platform capabilities
• Improve reliability, observability, and performance of data workflows and backend services
• Implement best practices for testing, monitoring, logging, and deployment
• Contribute to architecture decisions related to storage, orchestration, metadata management, and access patterns
• Help establish engineering standards for code quality, documentation, CI/CD, and operational excellence
• Troubleshoot and debug production systems
• Hybrid role requiring a mix of work from home and onsite presence at the customer’s Reston office

Requirements

• 10+ years of professional software engineering experience with strong backend development skills
• Proficiency in Python
• Experience building backend systems, APIs, or distributed services in production environments
• Proficiency with PostgreSQL and Elasticsearch
• Familiarity with AWS, especially S3, and other data-centric services (RDS mentioned in source)
• Current/active TS/SCI with a current CI polygraph or willingness and ability to obtain one
• Bachelor’s degree in Computer Science, Systems Engineering, or an equivalent field
• Solid understanding of software engineering fundamentals, including testing, version control, CI/CD, and system design
• Tenacious troubleshooting and problem-solving mindset
• Strong communication and collaboration skills; ability to work effectively on a small technical team

Technologies

• Python
• PostgreSQL
• Elasticsearch
• AWS
• S3
• RDS
• GitLab
• GitLab CI
• OpenShift
• Helm
• Docker

Benefits

• 401(k) with company match
• Mental health resources
• Student loan repayment assistance
• Adoption reimbursement
• Pet insurance

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

EEO Policy

Vantor is an equal opportunity employer committed to an inclusive workplace. 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.