Web Software Developer II
ATTAINX INC
South, Arlington County72k–80k
Posted 8 hours ago
Software Engineer Level 5
Base-2 Solutions
Washington, District of Columbiafull-timePosted 6 days ago
Free to start — build an ATS-friendly resume that matches this listing, no sign-up required.
About this role
• Requisition ID: 4957 • Standard Title: Principal Software Engineer • Required Security Clearance: Top Secret/SCI with CI Polygraph • Location: Washington, DC • Work Type: On-Site • Shift: First • Referral Eligibility: Eligible • U.S. Citizenship Required? Yes Position Summary Base-2 Solutions is seeking a Software Engineer Level 5 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 back
Read the full description and requirements on the original posting.
Tailor your resume for this Software Engineer Level 5 role
Base-2 Solutions and most employers screen applications with ATS software before a recruiter reads them, and they rank resumes that echo the language of the posting. To stand out for this role, mirror the exact skills, tools, and job title it uses, and make your location (Washington, District of Columbia) clear. For software & it roles like this one, recruiters commonly scan for:
- JavaScript
- Python
- React
- AWS
- SQL
- CI/CD
- Docker
- REST APIs
Tailr does this for you: paste this listing and it builds an ATS-friendly resume matched to it, with a live score that climbs as your resume aligns with what this role needs.
Build a matching resume — freeFrequently asked questions
Is the Software Engineer Level 5 role at Base-2 Solutions remote?
This role is based in Washington, District of Columbia. Check the original posting for any hybrid or remote flexibility.
How do I apply for this Software Engineer Level 5 job?
Applications happen on the employer's own site — use the "Apply on company site" link on this page. Before you apply, tailor your resume to the listing so it clears the ATS.
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