Senior Backend Engineer (TS/SCI) — Python & FastAPI

Base-2 Solutions, LLC; Reston (VA); On-site; USD 150,000 - 190,000; Full time

Job summary

Base-2 Solutions is seeking a Software Engineer Level 5 to develop, maintain, and enhance complex software systems with a focus on backend development, data engineering, and API creation. The role centers on building scalable systems using Python and FastAPI, and managing PostgreSQL databases for high-speed, data-sensitive environments.

You will contribute to real-time analytics and high-performance integrations, collaborating across teams to ensure robust, secure software delivery.

Qualifications

• Backend development experience required.
• Data engineering and API development experience required.
• Experience building scalable systems with Python and FastAPI.
• Experience designing PostgreSQL databases with indexing and performance.
• Elasticsearch proficiency required for search and analytics.
• Experience building high-performance API connections for mission-critical systems.

Responsibilities

• Develop, maintain, and enhance complex and diverse software systems, including analytics, large data sets, real-time systems, and MIS, based on requirements.
• Provide input to software component design including hardware/software trade-offs and reuse of COTS/GOTS.
• Design, implement, and integrate software applications or perform software engineering tasks.
• Apply software engineering methodologies suitable for development, integration, and production environments.
• Ensure efficient delivery of software capabilities using industry standards and repeatable processes.
• Mitigate risks, control costs and schedule variance on large-scale projects.
• Review and test components for adherence to design and document results.

Skills

Python

FastAPI

PostgreSQL

Elasticsearch

API Development

Data Engineering

Backend development

Clearance TS/SCI CI Polygraph

Education

High School Diploma/ GED with 18 years of experience

Associates Degree with 16 years of experience

Bachelors’ Degree with 14 years of experience

Masters’ Degree with 12 years of experience

PhD with 10 years of experience

Job description

Base-2 Solutions is seeking a Software Engineer Level 5 to develop, maintain, and enhance complex software systems with a focus on backend development, data engineering, and API creation. The role centers on building scalable systems using Python and FastAPI, and managing PostgreSQL databases for high-speed, data-sensitive environments.

You will contribute to real-time analytics and high-performance integrations, collaborating across teams to ensure robust, secure software delivery.