Primus Systems LLC · EST. MMXXVI
Primus Systems LLC

Federal-grade software, built by the engineers who will operate it.

A small team of senior engineers delivering exceptional software architecture and engineering for mission-critical federal systems — cloud-native on FedRAMP-authorized platforms, zero-trust by default, DevSecOps end-to-end, with deep specialization in AI forward-deploy and large data.

Built for FedRAMP High · Cloud-native on FedRAMP-authorized platforms · Cleared engineers, on request
01CAPABILITIES

What we build, end to end.

Three practice areas, one team. We design the architecture, write the code, ship the pipeline, and stay on through operations. Engagements are scoped to outcomes — not headcount.

01 · CLOUD-NATIVE ARCHITECTURE

Systems designed cloud-first, auditable from the first commit.

Reference architectures, ADRs, and reproducible builds on FedRAMP-authorized cloud — for platforms that have to pass an ATO and keep passing it. We bring opinionated structure to programs that need it most.

Cloud-native FedRAMP-authorized Reference architecture ADRs SBOM
02 · DEVSECOPS & ZERO TRUST

Security as a property of the pipeline, not a phase of the project.

Zero-trust service mesh, signed artifacts, continuous controls evidence, and policy-as-code on day one. Audit trails ship with the platform — your assessor doesn't ask for screenshots.

Zero-trust mesh Sigstore / cosign Policy-as-code Continuous ATO
03 · AI FORWARD-DEPLOY & LARGE DATA

Models and data planes that operate inside the boundary.

From foundation-model evaluation through forward-deployed inference at the tactical edge, plus the data substrate underneath: ingest, lineage, governance, and retrieval at agency scale.

Forward-deploy Eval harness Data lineage Retrieval / RAG Edge inference
02APPROACH

Four operating principles.

The discipline that keeps mission systems on time, on budget, and on accreditation. We hold ourselves to these on every engagement — and we document them, so you can hold us to them too.

P · 01

Senior engineers on the keyboard.

No layered staffing model. The architect who designs the system writes the first production commit and is on the call when it matters. Smaller team, higher ceiling.

OUTCOME · OWNERSHIPNO LAYERED STAFFING
P · 02

Zero-trust as a default, not a deliverable.

Identity-aware ingress, mTLS between every service, signed artifacts, and least-privilege access enforced in code. The control surface is the platform — there is no second one.

ZERO-TRUST · NIST 800-207POLICY-AS-CODE
P · 03

Evidence ships with the platform.

Every pipeline emits continuous controls evidence mapped to FedRAMP and NIST 800-53. Your authorization package is generated, not assembled. Your assessor gets data, not narrative.

CONTINUOUS · ATO-READYOSCAL / NIST 800-53
P · 04

AI in the boundary, not over the fence.

Models, retrieval indices, and evaluation harnesses run inside the accreditation boundary — on government cloud, on-prem, or at the edge. Telemetry stays inside; capability comes to you.

FORWARD-DEPLOY · EDGEEVAL-FIRST
PLATFORMFedRAMP-authorized cloud
FRAMEWORK · ALIGNMENTMission First · Ontology Aware
CONTROL CATALOGNIST 800-53
ARCHITECTUREZero-Trust · 800-207
Engagements · 2026

Start with a conversation, not a sales call.

Tell us what you're trying to build, who the assessor will be, and where the program currently sits. We'll respond within one business day with a short, written read on whether — and how — we can help.

EntityPrimus Systems LLC
UEIH56AYPXPGME3
NAICS541511 · 541512
HQWashington · DC
Response SLA≤ 1 business day