Senior Backend Engineer — Python, FastAPI, PostgreSQL

RPMGlobal; Annapolis (MD); On-site; USD 120,000 - 170,000; Full time

Job summary

Base-2 Solutions in Annapolis, MD is seeking a Software Engineer Level 4 to develop and maintain complex software for mission-focused environments, emphasizing backend development, data engineering, and API work.

The role requires TS/SCI with CI Poly, strong Python and FastAPI skills, PostgreSQL expertise, and experience delivering scalable, high-performance integrations. You will work on designing components, handling large data sets, and ensuring secure, reliable systems.

Qualifications

• Active TS/SCI with CI Polygraph.
• Experience as a backend developer.
• Experience in data engineering and API development.
• Experience building scalable systems with Python and FastAPI.
• Experience designing and managing PostgreSQL databases with efficient SQL and indexing.
• Proficiency in Python.
• Proficiency in FastAPI.
• Proficiency in PostgreSQL.
• Proficiency in Elasticsearch.
• Experience building high‑performance API connections between high-speed, high‑volume, mission-critical, data-sensitive systems.

Responsibilities

• Develop, maintain, and enhance complex and diverse software systems, including processing-intensive analytics, novel algorithm development, manipulation of extremely large data sets, real-time systems, and business management information systems, based upon documented requirements.
• Provide specific input to software component design, including hardware/software trade-offs, software reuse, use of COTS/GOTS in place of new development, and requirements analysis and synthesis from the system level to individual software components.
• Design, implement, and integrate software applications or perform software engineering tasks.
• Utilize software engineering and design methodologies appropriate to the development, integration, and production environment.
• Ensure efficient delivery of software engineering capabilities using industry standards and repeatable processes.
• Mitigate risks, control costs and schedule variance, and effectively manage large-scale, integrated software projects.
• Review and test software components for adherence to design requirements and document test results.

Skills

Backend development

Data engineering

API development

Python

FastAPI

Elasticsearch

Education

Bachelor's Degree

Master's Degree

PhD

Associates Degree

High School Diploma/GED

Tools

PostgreSQL

Elasticsearch

FastAPI

Job description

Base-2 Solutions in Annapolis, MD is seeking a Software Engineer Level 4 to develop and maintain complex software for mission-focused environments, emphasizing backend development, data engineering, and API work.

The role requires TS/SCI with CI Poly, strong Python and FastAPI skills, PostgreSQL expertise, and experience delivering scalable, high-performance integrations. You will work on designing components, handling large data sets, and ensuring secure, reliable systems.