"We engineer technology from the ground up — from assembly and firmware to cloud and AI — delivering on every commitment, in every domain, at every level of criticality."

Austin, TX - Est. 1990

Established originally in San Antonio, Texas providing custom software engineering services and computer hardware repair to the U.S. Air Force, now Joint-Base San Antonio. Customer base grew across the state of Texas, then across the country starting with Florida, Indiana, Illinois, Iowa, and Minnesota. Through the decades the business model took different forms. The business today is the culmination of the technological endeavors of its founder, Mark Graybill.

35+
Years Experience
60+
Completed Projects
15+
Industries Served
10+
Standards Frameworks
Module · Identity

Who We Are

01 / 04
Statement

Graybill Technology is a full-spectrum software engineering firm with over three decades of proven delivery across some of the most demanding industries on earth. We don't just write code — we architect systems, lead teams, build processes from scratch, and mentor organizations.

Whether the challenge is a new military tactical data platform, a FDA-regulated medical device, a safety-critical public infrastructure system, or a commercial logistics application, we deliver with discipline, quality, and integrity.

Module · Frameworks

Standards & Compliance

02 / 04
Brief

Operating in critical domains requires more than technical skill — it demands mastery of the regulatory and process frameworks that govern them. Graybill Technology brings direct, hands-on experience with every major software engineering and quality standard applicable to commercial, defense, and life-critical work.

Framework Index
IEEE SWEBOK CMMI Level 5 ISO 9001 FDA Regulated MIL-STD FAA / Public Safety Agile / Scrum TDD / BDD OOA & D UML / SysML AOP SDLC Authoring V&V
// Authoring Advantage

Our principal engineer has written SDLC processes and software engineering operating procedures from scratch at multiple organizations — not just followed standards, but authored them. Available as a consulting engagement.

Module · Capability

What We Build

03 / 04
Brief

Graybill Technology constructs technology from first principles. We do not assemble commodity components or adapt templates — we engineer solutions that precisely fit the problem, on the platform the problem demands.

Capability Index
[01]

Hardware & Bare-Metal Software

Firmware and device drivers at the hardware/OS boundary — fiber optic drivers in C, RS-232 and RS-422 firmware on proprietary circuit boards, embedded pacemaker and neurostimulator programming in C++, silicon wafer image processing, OS/2 disk utilities, and interrupt-based Unix-like security systems in assembly.

[02]

Embedded & Real-Time Systems

Life-critical embedded systems for implantable cardiac and neurological devices, military tactical communications equipment, robotic armament systems, and precision approach radar — developed under MIL-STD, FDA, and FAA regulatory rigor.

[03]

Enterprise Software & Cloud Architecture

Full-stack React/Node applications, C# .NET microservices, Docker container orchestration, AWS Big Data pipelines. Tactical data platforms meeting DoD High Availability and Zero Trust requirements; architecting in UML, SysML, and ERD from blank whiteboards.

[04]

AI, Machine Learning & Computer Vision

Applied AI/ML capabilities including deep learning, natural language processing, computer vision, and image processing — drawing from hands-on project delivery and formal post-graduate certification from the University of Texas McCombs School of Management.

Module · Domain

Industries We Served

04 / 04
Brief

Our project history spans more than 15 distinct industries, with particular depth in high-stakes and regulated domains where the cost of failure is measured in lives and national security.

Domain Index
Defense & Tactical

Army/DoD enterprise platforms, tactical data links, robotic armament, NLOS-C simulators, MIL-STD software.

Healthcare & Clinical

Enterprise EMR, AOP patient privacy/security, SaaS clinical workflow, DICOM/HL7 imaging, mobile point-of-care forms.

Medical Devices

FDA-regulated embedded systems — pacemakers, neurostimulators, cardiac programmers — under rigorous V&V.

Aviation & Public Safety

FAA precision approach radar, air traffic control, public safety apps under FAA frameworks.

Medical Imaging

3D visualization servers, MRI image quality validation, silicon wafer visual inspection robotics.

Enterprise Tech

OS-level utilities (fdisk, chkdsk), AS/400 integration, OS/2 multithreaded systems, service mesh containers.

Education

Minnesota State Colleges & Universities, Iron Range workforce portal — jobs, talent, skills database.

Financial Services

Three-tier data mining platforms, healthcare management brokers, credit services, retail POS systems.

Industrial & Mfg.

Food safety systems via TCP socket and MODBUS, inventory management, automated check packaging.

Logistics & Supply

Custom enterprise logistics interfaces, barcode/scanning automation, shipping integration systems.

Retail & Hospitality

POS and inventory across multiple chains, hotel phone accounting APIs, vendor manifest automation.

Cloud & Big Data

Army AWS cloud aggregation, tactical DoD platforms, React/Python/PostgreSQL/Redis service mesh.

WHO
WE ARE

Graybill Technology is a full-spectrum software engineering firm with over three decades of proven delivery across some of the most demanding industries on earth. We don't just write code — we architect systems, lead teams, build processes from scratch, and mentor organizations.

Whether the challenge is a new military tactical data platform, a FDA-regulated medical device, a safety-critical public infrastructure system, or a commercial logistics application, we deliver with discipline, quality, and integrity.

STANDARDS &
COMPLIANCE
STANDARDS &
COMPLIANCE

Operating in critical domains requires more than technical skill — it demands mastery of the regulatory and process frameworks that govern them. Graybill Technology brings direct, hands-on experience with every major software engineering and quality standard applicable to commercial, defense, and life-critical work.

IEEE SWEBOK
CMMI LEVEL 5
ISO 9001
FDA REGULATED
MIL-STD
FAA / PUBLIC SAFETY
AGILE / SCRUM
TDD / BDD
OOA & D
UML / SYSML
AOP
SDLC PROCESS AUTHORING
V&V (VERIFICATION & VALIDATION)
IEEE SWEBOK
CMMI LEVEL 5
ISO 9001
FDA REGULATED
MIL-STD
FAA / PUBLIC SAFETY
AGILE / SCRUM
TDD / BDD
OOA & D
UML / SYSML
AOP
SDLC PROCESS AUTHORING
V&V (VERIFICATION & VALIDATION)

Uniquely, our principal engineer has written SDLC processes and software engineering operating procedures from scratch at multiple organizations — not just followed standards, but authored them. This capability is available to client organizations as a consulting engagement, delivering documented, repeatable, auditable engineering processes tailored to your regulatory environment.

WHAT
WE BUILD

Graybill Technology constructs technology from first principles. We do not assemble commodity components or adapt templates — we engineer solutions that precisely fit the problem, on the platform the problem demands.

Hardware & Bare-Metal Software
We write firmware and device drivers at the hardware/OS boundary — including fiber optic drivers in C, RS-232 and RS-422 firmware on proprietary circuit boards, embedded pacemaker and neurostimulator programming in C++, silicon wafer image processing, OS/2 disk utilities, and interrupt-based Unix-like security systems in assembly. If the electrons need directing, we speak the language.
Embedded & Real-Time Systems
Life-critical embedded systems for implantable cardiac and neurological devices, military tactical communications equipment, robotic armament systems, and precision approach radar represent the highest tier of our embedded work — developed under MIL-STD, FDA, and FAA regulatory rigor.
Enterprise Software & Cloud Architecture
From full-stack React/Node applications to C# .NET microservices, Docker container orchestration, and AWS Big Data pipelines, we architect and build enterprise-scale systems designed for resilience, security, and long operational life. We've designed tactical data platforms meeting DoD High Availability and Zero Trust requirements, and led architecting efforts using UML, SysML, and ERD from blank whiteboards.
AI, Machine Learning & Computer Vision
Applied AI/ML capabilities including deep learning, natural language processing, computer vision, and image processing — drawing from both hands-on project delivery and formal post-graduate certification from the University of Texas McCombs School of Management.
INDUSTRIES
WE SERVED

Our project history spans more than 15 distinct industries, with particular depth in high-stakes and regulated domains where the cost of failure is measured in lives and national security.

DEFENSE & TACTIAL

Army/DoD enterprise platforms, tactical data links, robotic armament systems, NLOS-C simulators, DoD aerial port systems, and MIL-STD compliant software.

HEALTHCARE & CLINICAL

Enterprise EMR systems, AOP patient privacy/security, SaaS clinical workflow, DICOM/HL7 imaging servers, data warehousing, and mobile electronic forms for point-of-care use.

MEDICAL DEVICES

FDA-regulated embedded systems for life-critical implantable devices — pacemakers, neurostimulators, and cardiac programmers — under rigorous V&V processes.

AVIATION & PUBLIC SAFETY

FAA precision approach radar systems, air traffic control software, and public safety application development in strict compliance with FAA regulatory and safety frameworks.

MEDICAL IMAGING

Advanced 3D visualization server architectures, MRI image quality validation, silicon wafer visual inspection robotics, and image processing at the hardware/software boundary.

ENTERPRISE TECHNOLOGY

OS-level utilities (fdisk, chkdsk), cash register to AS/400 integration, OS/2 multithreaded systems, fiber optic drivers, SSH tunnel management, and service mesh container architectures.

EDUCATION

Minnesota State Colleges & Universities, the Iron Range workforce development portal, including job and project listings, talent and skills database, and client company sponsors.

FINANCIAL SERVICES

Three-tier data mining platforms, patient healthcare management brokers, credit services architecture, and point-of-sale systems for retail financial operations.

INDUSTRIAL & MANUFACTURING

Food safety systems using TCP socket client/server and MODBUS protocol, inventory management, automated check packaging systems, and custom hardware interfacing.  

LOGISTICS & SUPPLY CHAIN

Custom enterprise logistics interfaces, barcode/scanning automation replacing expensive vended products, and shipping integration systems.

RETAIL & HOSPITALITY

Point-of-sale and inventory management systems across multiple retail chains, hotel phone accounting APIs, and vendor manifest automation. Delivered for a dozen retail and hospitality organizations.

CLOUD & BIG DATA

Army AWS cloud data aggregation, tactical DoD enterprise platforms with High Availability and Zero Trust requirements, and React.JS/Python/PostgreSQL/Redis service mesh architectures.

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