Job description

REQUIRED • Bachelor's degree in Computer Science, Software Engineering, or related technical field and 10 years of experience; Master's degree and 7 years of experience. • Security clearance - this position requires the candidate to be able to obtain a DoD Secret security clearance and to maintain the clearance thereafter. You must be a US Citizen and show proof of citizenship. • Demonstrated experience reading, analyzing, and reverse-engineering legacy codebases in one or more of the following languages: C, C++, Fortran, Ada. • Demonstrated experience using AI to assist in code comprehension and documentation is a plus • Experience leading formal architecture reviews of systems the candidate did not originally build, including undocumented or minimally documented systems • Hands-on experience with Linux/Unix-based development environments • Experience with relational databases (PostgreSQL, Oracle, or equivalent) • Proficiency with version control systems (GitLab, GitHub, or equivalent) • Experience establishing or operating within CI/CD pipelines (GitLab CI, Jenkins, or equivalent) • Experience with agile/iterative development methodologies including sprint planning, backlog management, and Definition of Done • Experience with JIRA or equivalent agile project tracking tools • Demonstrated experience leading software development or architecture teams of 5 or more engineers • Experience In programs with formal configuration management, change request processes, and review gates in a government or DoD/NASA environment • Ability to develop and maintain technical documentation for legacy systems with little or no existing documentation PREFERRED • Experience with NASA ground systems, space relay systems, or mission-critical ground software • Familiarity with AI-assisted code comprehension tools (e.g., AskSage or equivalent approved government AI platforms) • Experience building or directing API-driven or RAG-based code analysis workflows using Python • Experience with Oracle, MSSQL; Postgres preferred • Experience migrating legacy codebases from end-of-life platforms (hardware or OS) to modern environments • Familiarity with MBSE tools (e.g., MagicDraw/Cameo) • Experience with Confluence for technical knowledge management Peraton is seeking a Senior Software Architect SME to support the Space Exploration Networks Services and Evolution (SENSE) contract at NASA’s Goddard Space Flight Center (GSFC), in Greenbelt, MD. This role will lead the architecture review, documentation, and modernization of a large-scale legacy ground system codebase supporting NASA Space Relay network operations. The right candidate brings deep experience with legacy systems, a track record of leading technical teams through complex software recoveries and the ability to operate effectively in a structured government program environment. Peraton is the prime contractor for NASA at the White Sands Complex (WSC) near Las Cruces, New Mexico. Operating here are two functionally identical satellite ground terminals: The White Sands Ground Terminal, and the Second TDRSS Ground Terminal. These ground terminals ensure uninterrupted communications between various ground stations, NASA’s orbiting fleet of Tracking and Data Relay Satellites (TDRS), customer spacecraft (satellites), and the computer systems that support such spacecraft. WSC serves as an interface for distributing satellite data to control centers and scientists who then use the daily influx of data to expand our ever-growing knowledge of the Earth and the universe. Responsibilities / What you’ll do… • Co-lead the Architecture Definition Review of legacy codebase which is a 35-year-old ground system written in Fortran, Ada, C, and C++ • Develop and update technical architecture documentation for a legacy system to close knowledge gaps and support long-term sustainment • Mentor a team of software engineers through a structured modernization and platform rehost effort, especially using AI tools and methods to gain efficiency. • Define and implement software development processes, toolchain standards, and CI/CD pipelines • Drive adoption of agile methodologies including sprint planning, peer estimation, and Definition of Done enforcement • Direct AI-assisted code comprehension workflows using NASA-approved tools • Support the development of backend effort estimates grounded in architecture analysis • Coordinate with NASA task monitors and program leadership on technical progress and formal review gates • Maintain and evolve technical documentation as a living knowledge base in support of long-term program sustainment #HIRE4SENSE Peraton is seeking a Senior Software Architect SME to support the Space Exploration Networks Services and Evolution (SENSE) contract at NASA’s Goddard Space Flight Center (GSFC), in Greenbelt, MD. This role will lead the architecture review, documentation, and modernization of a large-scale legacy ground system codebase supporting NASA Space Relay network operations. The right candidate brings deep experience with legacy systems, a track record of leading technical teams through complex software recoveries and the ability to operate effectively in a structured government program environment. Peraton is the prime contractor for NASA at the White Sands Complex (WSC) near Las Cruces, New Mexico. Operating here are two functionally identical satellite ground terminals: The White Sands Ground Terminal, and the Second TDRSS Ground Terminal. These ground terminals ensure uninterrupted communications between various ground stations, NASA’s orbiting fleet of Tracking and Data Relay Satellites (TDRS), customer spacecraft (satellites), and the computer systems that support such spacecraft. WSC serves as an interface for distributing satellite data to control centers and scientists who then use the daily influx of data to expand our ever-growing knowledge of the Earth and the universe. Responsibilities / What you’ll do… • Co-lead the Architecture Definition Review of legacy codebase which is a 35-year-old ground system written in Fortran, Ada, C, and C++ • Develop and update technical architecture documentation for a legacy system to close knowledge gaps and support long-term sustainment • Mentor a team of software engineers through a structured modernization and platform rehost effort, especially using AI tools and methods to gain efficiency. • Define and implement software development processes, toolchain standards, and CI/CD pipelines • Drive adoption of agile methodologies including sprint planning, peer estimation, and Definition of Done enforcement • Direct AI-assisted code comprehension workflows using NASA-approved tools • Support the development of backend effort estimates grounded in architecture analysis • Coordinate with NASA task monitors and program leadership on technical progress and formal review gates • Maintain and evolve technical documentation as a living knowledge base in support of long-term program sustainment #HIRE4SENSE REQUIRED • Bachelor's degree in Computer Science, Software Engineering, or related technical field and 10 years of experience; Master's degree and 7 years of experience. • Security clearance - this position requires the candidate to be able to obtain a DoD Secret security clearance and to maintain the clearance thereafter. You must be a US Citizen and show proof of citizenship. • Demonstrated experience reading, analyzing, and reverse-engineering legacy codebases in one or more of the following languages: C, C++, Fortran, Ada. • Demonstrated experience using AI to assist in code comprehension and documentation is a plus • Experience leading formal architecture reviews of systems the candidate did not originally build, including undocumented or minimally documented systems • Hands-on experience with Linux/Unix-based development environments • Experience with relational databases (PostgreSQL, Oracle, or equivalent) • Proficiency with version control systems (GitLab, GitHub, or equivalent) • Experience establishing or operating within CI/CD pipelines (GitLab CI, Jenkins, or equivalent) • Experience with agile/iterative development methodologies including sprint planning, backlog management, and Definition of Done • Experience with JIRA or equivalent agile project tracking tools • Demonstrated experience leading software development or architecture teams of 5 or more engineers • Experience In programs with formal configuration management, change request processes, and review gates in a government or DoD/NASA environment • Ability to develop and maintain technical documentation for legacy systems with little or no existing documentation PREFERRED • Experience with NASA ground systems, space relay systems, or mission-critical ground software • Familiarity with AI-assisted code comprehension tools (e.g., AskSage or equivalent approved government AI platforms) • Experience building or directing API-driven or RAG-based code analysis workflows using Python • Experience with Oracle, MSSQL; Postgres preferred • Experience migrating legacy codebases from end-of-life platforms (hardware or OS) to modern environments • Familiarity with MBSE tools (e.g., MagicDraw/Cameo) • Experience with Confluence for technical knowledge management

Requirements

Must-haves

Bachelor's degree in Computer Science, Software Engineering, or related technical field and 10 years of experience; Master's degree and 7 years of experience.
Security clearance - this position requires the candidate to be able to obtain a DoD Secret security clearance and to maintain the clearance thereafter. You must be a US Citizen and show proof of citizenship.
Demonstrated experience reading, analyzing, and reverse-engineering legacy codebases in one or more of the following languages: C, C++, Fortran, Ada.
Experience leading formal architecture reviews of systems the candidate did not originally build, including undocumented or minimally documented systems
Hands-on experience with Linux/Unix-based development environments
Experience with relational databases (PostgreSQL, Oracle, or equivalent)
Proficiency with version control systems (GitLab, GitHub, or equivalent)
Experience establishing or operating within CI/CD pipelines (GitLab CI, Jenkins, or equivalent)
Experience with agile/iterative development methodologies including sprint planning, backlog management, and Definition of Done
Experience with JIRA or equivalent agile project tracking tools
Demonstrated experience leading software development or architecture teams of 5 or more engineers
Experience In programs with formal configuration management, change request processes, and review gates in a government or DoD/NASA environment

Nice-to-haves

Demonstrated experience using AI to assist in code comprehension and documentation is a plus
Experience with NASA ground systems, space relay systems, or mission-critical ground software
Familiarity with AI-assisted code comprehension tools (e.g., AskSage or equivalent approved government AI platforms)
Experience building or directing API-driven or RAG-based code analysis workflows using Python
Experience with Oracle, MSSQL; Postgres preferred
Experience migrating legacy codebases from end-of-life platforms (hardware or OS) to modern environments
Familiarity with MBSE tools (e.g., MagicDraw/Cameo)
Experience with Confluence for technical knowledge management
Responsibilities / What you’ll do…
Co-lead the Architecture Definition Review of legacy codebase which is a 35-year-old ground system written in Fortran, Ada, C, and C++
Develop and update technical architecture documentation for a legacy system to close knowledge gaps and support long-term sustainment
Mentor a team of software engineers through a structured modernization and platform rehost effort, especially using AI tools and methods to gain efficiency.

Application prep

Use the role’s language and application details while tailoring your materials.

Keywords to mirror

aici/cdagilejiraapipythonpostgres

Platform: peraton
Effort: medium