| Location | Greenbelt, Maryland (Remote) |
| Website | https://www.adnet-sys.com/careers/ |
AP110 Principal Software Systems Engineer / Full-Stack Architect Program: NASA GSFC Astrophysics Science Division: Guest Observer Facility (GOF) Modernization Project Location: Remote Position, US-based only (occasional travel to NASA Goddard Space Flight Center, Greenbelt, MD will be required for badging and review milestones) Employment Type: Full-time contractor position Level: Senior / Principal (~10+ years of relevant experience) Eligibility: Must be a US Citizen or Lawful Permanent Resident (LPR); having resided in the US for the past 3 consecutive years and able to meet the access requirements for a system handling Controlled Unclassified Information (CUI) and Personally Identifiable Information (PII). About the Project: The NASA Astrophysics Science Division operates a set of ongoing space-based observatories and manages the Science Operations of these missions. Key among those responsibilities are the Guest Observer Facilities (GOFs) for each mission which enable the astrophysics community to propose new research for these missions. These Guest Observers are supported through a process that manages the proposal, peer-review, and grant-initiation lifecycle for multiple astrophysics missions including NuSTAR, NICER, XRISM, IXPE, TESS, XMM, Fermi and Swift. The GOF Modernization Project will design and deliver a unified, multi-mission software system that streamlines the full proposal, review, grant workflow: proposal submission, reviewer recruitment and expertise matching, conflict detection, panel definition, evaluation, programmatic decisions, document and report generation, and grants-package preparation. The system must serve many distinct user types (GOF leads and staff, Principal Investigators, proposers, reviewers, reviewer selectors, award recipients, and NASA Headquarters) each with tailored interfaces and responsibilities. The system must secure sensitive (CUI), multi-mission databases deployed in the cloud. This is a government-funded effort with a startup-like mandate: deliver a working prototype by December 2026, then iterate rapidly toward a production system. We are looking for a builder-leader who can architect the system, write the core of it, and grow a small team around it. Position Summary: The Principal Software Systems Engineer / Full-Stack Architect is the technical owner of the GOF modernization prototype. You will be responsible for designing, building, and deploying the system end to end across front-end, back-end, database, cloud infrastructure, user-experience, and applied-AI layers. This is a hands-on, builder-first role. You will personally architect and write the core of the system, while leading up to two developers and retaining the institutional knowledge needed to carry the system into maintenance and production. You will work closely with a small group of internal NASA scientist customers and stakeholders to gather requirements and set priorities, and you will incorporate critical feedback from a broader group of roughly a dozen external mission and stakeholder representatives. Because the goal is a fast, credible prototype for a specialized user base, we value pragmatic engineering judgment, the ability to leverage existing components, and a track record of shipping. Key Responsibilities:
Required Qualifications:
Preferred Qualifications:
Defining Success: By the end of 2026, you deliver a credible, demonstrable prototype that unifies key parts of the proposal–review–grant workflow for an initial set of missions, earns buy-in from participating mission stakeholders, and establishes the architecture, security posture, and team practices needed to iterate quickly toward a production system. Team ADNET brings over 30+ years of experience to information systems and professional services for the federal government. With a history of expertise in software development, computer network design, IT security, mission operations support, and educational outreach, Team ADNET is deeply embedded in the Space and Earth Science at NASA's Goddard Space Flight Center (GSFC) in Greenbelt, MD. ADNET Systems, Inc. is working with Goddard Space Flight Center to fulfill NASA's vision for space exploration, and working with the Science and Exploration Directorate to fulfill its many missions. ADNET Systems, Inc. is an employee-centric company, committed to providing premier benefits that support our employees and their families. With affordable medical and dental plans coupled with leading disability and life insurance options, ADNET offers our employees the benefits most sought after by today’s professional candidate. Furthermore, our benefits package features the extras that distinguish us from other small businesses, ensuring our high employee retention that our customers appreciate. Some features of our compensation plans and environment perks include:
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