Software Engineer Level 4

RPMGlobal; Annapolis, Northern (MD, KY); Hybrid; USD 110,000 - 170,000; Full time

Job summary

Base-2 Solutions is seeking a Software Engineer Level 4 to develop and maintain backend, data engineering, and API components for mission-focused systems. The role emphasizes scalable Python/FastAPI services, PostgreSQL database design, and high-performance integrations across data-sensitive environments.

The candidate should have strong Python and FastAPI skills, PostgreSQL expertise, and experience with Elasticsearch for high-volume data workflows in critical systems.

Qualifications

• Must possess active TS/SCI with CI Polygraph.
• Backend development experience with scalable systems.
• Experience in data engineering and API development.
• Proficient in Python and FastAPI.
• Experience designing and managing PostgreSQL databases with efficient SQL.
• Experience building high-performance API connections.

Responsibilities

• Develop, maintain, and enhance complex software systems.
• Provide input on component design including trade-offs and reuse.
• Design, implement, and integrate software applications.

Skills

Backend development

Data engineering

API development

Python

FastAPI

PostgreSQL

Elasticsearch

Education

High School Diploma/GED

Associates Degree

Bachelor's Degree

Master's Degree

PhD

Tools

Python

FastAPI

PostgreSQL

Elasticsearch

SQL indexing

Job description

Position Summary

Base-2 Solutions is seeking a Software Engineer Level 4 to develop, maintain, and enhance complex and diverse software systems supporting mission-focused environments. This role is centered on backend development, data engineering, and API development, with emphasis on building scalable systems using Python and FastAPI, designing and managing PostgreSQL databases, and supporting high-performance integrations across high-speed, high-volume, mission-critical, data-sensitive systems.

Essential Duties and 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.

Required Qualifications

• Active TS/SCI with CI Polygraph.
• Demonstrated experience as a backend developer.
• Demonstrated 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 strategies.
• 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.

Preferred Qualifications

• Experience supporting processing-intensive analytics environments.
• Experience working with extremely large data sets.
• Experience supporting real-time systems.
• Experience contributing to software design decisions involving software reuse, COTS/GOTS, and system-to-component requirements analysis.

Required Education and Experience Equivalency

• High School Diploma/GED with 13 years of experience.
• Associates Degree with 11 years of experience.
• Bachelors' Degree with 9 years of experience.
• Masters' Degree with 7 years of experience.
• PhD with 5 years of experience.

Required Certifications

• None specified.

Required Security Clearance

• Active TS/SCI with CI Polygraph.