Senior Backend Engineer - Python/FastAPI for Data Systems

Base-2 Solutions; Washington (District of Columbia); On-site; USD 120,000 - 180,000; Full time

Job summary

Base-2 Solutions is seeking a Software Engineer Level 5 focused on backend development, data engineering, and API creation. The role emphasizes scalable systems, Python and FastAPI, PostgreSQL management, and high-performance integrations across mission-critical, data-sensitive environments.

The position requires active TS/SCI with CI Polygraph and extensive experience in building and maintaining complex software with emphasis on data-driven analytics and API development.

Qualifications

• Active TS/SCI with CI Polygraph.
• Backend development experience.
• Data engineering and API development experience.
• Experience with Python and FastAPI.
• Experience designing and managing PostgreSQL databases with indexing.
• Proficiency in PostgreSQL and Elasticsearch.

Responsibilities

• Develop, maintain, and enhance complex software systems for analytics, real-time processing, and data-intensive tasks.
• Provide input to software component design including trade-offs and requirements synthesis.
• Design, implement, and integrate software applications and tasks.
• Apply engineering methodologies suitable for development, integration, and production.
• Ensure efficient delivery of capabilities using industry standards and repeatable processes.
• Mitigate risks, control costs, and manage large-scale software projects.
• Review and test software components and document results.

Skills

Backend development

Data engineering

API development

Python

FastAPI

PostgreSQL

Elasticsearch

Education

Bachelor's degree

Master's degree

PhD

Associates degree

Job description

Base-2 Solutions is seeking a Software Engineer Level 5 focused on backend development, data engineering, and API creation. The role emphasizes scalable systems, Python and FastAPI, PostgreSQL management, and high-performance integrations across mission-critical, data-sensitive environments.

The position requires active TS/SCI with CI Polygraph and extensive experience in building and maintaining complex software with emphasis on data-driven analytics and API development.