Software Engineer Level 4

Base-2 Solutions offers a mission-focused software engineering role on-site in the United States, centered on building and improving complex systems. You will work with modern backend and data technologies, helping deliver scalable software capabilities using repeatable processes and industry standards. The role is matched with a comprehensive benefits package and flexible time off options.

What you’ll do

• Develop, maintain, and enhance complex software systems, including processing-intensive analytics, novel algorithm development, real-time systems, and business management information systems.
• Work from documented requirements to deliver software that manipulates extremely large data sets and supports high-performance needs.
• Contribute input to software component design, including hardware/software trade-offs, software reuse, and use of COTS/GOTS instead of new development when appropriate.
• Support requirements analysis and synthesis from the system level down to individual software components.
• Design, implement, and integrate software applications, or perform software engineering tasks appropriate to the production environment.
• Use software engineering and design methodologies suited for development, integration, and production operations.
• Help mitigate risks and manage large-scale, integrated projects by controlling cost and schedule variance.
• Review and test software components for adherence to design requirements and document test results.

What you’ll bring

• Active TS/SCI with CI Polygraph (required security clearance).
• 5+ years of experience (or equivalent per education equivalency below).
• Demonstrated backend development experience.
• Demonstrated experience in data engineering and API development.
• Experience building scalable systems with Python and FastAPI.
• Experience designing and managing PostgreSQL databases using efficient SQL and indexing strategies.
• Proficiency in Python, FastAPI, and PostgreSQL.
• Proficiency in Elasticsearch.
• Experience building high-performance API connections between high-speed, high-volume, mission-critical, data-sensitive systems.

Technologies you’ll work with

• Python
• FastAPI
• PostgreSQL
• Elasticsearch

Education and experience equivalency

• High School Diploma/GED: 13 years of experience
• Associates Degree: 11 years of experience
• Bachelors’ Degree: 9 years of experience
• Masters’ Degree: 7 years of experience
• PhD: 5 years of experience

Benefits

• Competitive fixed salary or hourly pay (based on experience, skills, location, and internal equity).
• Employee referral bonuses up to $10,000 per hired referral.
• Additional bonus opportunities for exceptional performance and contributions to business development and company growth (role-dependent).
• 100% company-paid medical premiums for employees and eligible dependents; choose from CareFirst, Kaiser, and UnitedHealthcare options (PPO, POS, HMO, and HSA-compatible plans).
• 100% company-paid dental premiums for employees and eligible dependents.
• 100% company-paid vision premiums for employees and eligible dependents.
• 100% company-paid premiums for short-term disability, long-term disability, AD&D, and life insurance up to $200,000.
• 401(k) with immediate vesting: 4% company match plus 4% non-elective company contribution (8% total); pre-tax and Roth options.
• Up to 20 days of flexible paid time off (PTO).
• 11 paid floating holidays.
• Flexible work schedules, including flex time and compressed work periods (contract and project-dependent).