APHEASARC Senior Scientific Software Developer

Position: AP108 HEASARC Senior Scientific Software Developer

Location: Greenbelt, MD

Job : AP108

# of Openings: 1

We are seeking a senior scientific software developer with significant experience in developing, maintaining, and managing open source software. Experience with developing or maintaining C and C++ code would be a plus. You will work on a large code base of analysis software called HEASoft, modernizing development practices, open‑source contributions, and future code architecture.

• Demonstrated experience developing and maintaining large, long‑lived code bases in a collaborative or open-source environment
• Proficiency in at least one systems-level language (C, C++, Fortran) and at least one scripting language (Python, Perl, or shell)
• Experience with modern software development practices: version control with git, code review workflows, CI/CD pipelines, and issue tracking
• Experience managing open-source projects, including contribution workflows, licensing considerations, and community-facing documentation
• Ability to work across a multi-language, multi-contributor code base and improve consistency without requiring full rewrites
• Strong written communication skills for technical documentation and contributor-facing guidance
• Bachelor of Science degree in Physics, Astronomy, Computer Science or a relevant physical science

US Citizenship or Permanent Residency (LPR) required, with US residency for the past 3 consecutive years.

Ability to obtain and maintain a Tier 1 Investigation through NASA.

• Experience modernizing or refactoring legacy scientific software
• Familiarity with HEASARC tools or high-energy astrophysics data formats (HEASoft, FTOOLS, XSPEC, FITS)
• Experience with software build systems (CMake, Autotools, or similar) across multiple platforms
• Background in scientific computing or research software engineering
• Experience designing software architecture for long-term maintainability and extensibility
• Master of Science degree or higher in Physics, Astronomy, Computer Science or a relevant physical science

Benefits:

• Military and Family Emergency Leave
• Paid Holidays
• Performance Bonuses
• Medical and Dental Plans
• Flexible spending accounts
• Direct Deposit Payroll
• 401K Plan with Company Matching and Immediate Vesting
• Short- and long-term disability insurance
• Life and accident insurance
• Tuition Reimbursement
• In-house Seminars/Workshops/Classes