F3 Intelligence Corp · 3 hours ago
Senior Full-Stack Engineer
United States
Full-time, Contract
Remote
Senior Level
$180K/yr - $210K/yrF3 Intelligence Corp is a leading investigations and intelligence firm specializing in advanced targeting and operational support. The Senior Full-Stack Engineer will design, build, and maintain internal applications and platforms that support federal operations, focusing on backend services, APIs, and modern web frontends.
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No H1B
U.S. Citizen Only
Responsibilities
Design, build, and maintain full-stack applications supporting internal intelligence workflows
Develop backend services and APIs using Python to integrate external data sources into internal tools
Build and maintain frontend components using modern web frameworks (e.g., React or equivalent) to support analyst-facing interfaces
Implement data ingestion, validation, and normalization logic for records-based intelligence workflows
Collaborate with platform and intelligence teams to translate operational requirements into technical solutions
Ensure applications are secure, reliable, and compliant with internal standards for handling sensitive PII
Troubleshoot and resolve application issues across frontend, backend, and integration layers
Write clear, maintainable code and documentation aligned with established engineering standards
Participate in code reviews and contribute to continuous improvement of development practices
Operate fully remotely while maintaining availability during core business hours (2:00 AM – 5:00 PM Eastern)
This is currently a 2 year contract, but expected to be extended
Qualification
Required
Significant experience as a Full-Stack Engineer or Software Engineer building production systems
Strong backend development experience using Python
Hands-on experience designing and consuming RESTful APIs
Experience building and maintaining modern web frontends (e.g., React, Vue, or similar)
Experience working in cloud environments (AWS or equivalent)
Demonstrated ability to work independently with minimal supervision
U.S. citizenship is required
Ability to successfully undergo and maintain a federal Public Trust background investigation
Strong problem-solving skills and attention to detail
Preferred
Experience integrating third-party or proprietary data providers into internal applications
Familiarity with AWS services (e.g., Lambda, EC2, S3, API Gateway)
Experience with CI/CD pipelines and deployment automation
Understanding of secure data handling, access controls, and audit logging
Experience supporting internal tools, analytics platforms, or intelligence-related applications
Prior experience in federal or government contracting environments
Benefits
Health, dental, and vision insurance with employer contributions.
401(k) retirement plan with employer matching.
Paid time off, sick leave, federal holidays, and parental leave.
Company-provided equipment and tools to support remote work.
Opportunity to work on mission-critical systems supporting federal programs.
Company
F3 Intelligence Corp
At F3 Intelligence, we’re more than just private investigators—we’re your strategic advantage in uncovering the facts that matter.
Founded in 2018
11-50 employees
Funding
Current Stage
Early StageLeadership Team
Daniel Ruiz (CCFI, PI)
Chief Operating Officer
Company data provided by crunchbase