Model-Based Systems Engineering
Model Based Systems Engineering Services Tier 1, 2, 3, Aviation, Automotive, Building Automation and deep tech manufacturing Startups
Learn MoreAbout Sagrada Engineering
Sacred Systems For A Safer World
Our modern world relies on software to do everything from controlling the speed of planes, trains and automobiles to managing and maintaining the comfort level of our homes and workplaces. These are all examples of complex systems. In particular, they are categorized as safety-critical systems. Safety-critical software is software whose operation or failure to operate deterministically can lead to catastrophic outcomes no one predicted or desired. In addition, most engineering firm suppliers lead with staff augmentation, implementation and systems integration but forget to address the requirements engineering, design and verification issues present throughout the life cycles of an organization's development program.
We don't generalize across every safety-critical niche — we specialize in three.
Aerospace avionics, automotive infotainment, and PLC-driven smart buildings look unrelated from the outside. From inside a systems model, they share the same bones: layered safety requirements, certification bodies that expect traceable evidence, and hardware that has to keep working long after the team that built it has moved on.
That overlap is where Sagrada operates. We apply the same MBSE rigor — SysML architectures, requirements traceability, structured verification — across all three, so a lesson learned on a flight control interface can inform how we structure a building automation controller.
Engagement Model
- 01 Embedded as an extension of your engineering team, or as an independent verification party — scoped per program.
- 02 Fixed-scope module engagements for a single discipline, or full-lifecycle support from concept through certification.
- 03 Deliverables handed off in formats your internal team owns — models, source, and traceable documentation, not black boxes.
How We Work
A consistent lifecycle, regardless of domain.
PHASE 01
Model the System
Requirements and architecture captured in SysML before a line of embedded code is written — so every stakeholder is looking at the same system.
PHASE 02
Build to the Standard
Firmware, control logic, or application software developed against the certification standard that governs your program from the outset.
PHASE 03
Verify & Hand Off
Requirements-based test campaigns generate the evidence your auditors need, packaged for a team that has to live with it after we're gone.
Our Service Suites
Named for what inspired them.
Software Verification Services
Software Verification Services - for Civil, Business avionics and DO-178C Programs
Learn MoreIVI & Mobile Application Development
IVI and Mobile Application Development for Android Automotive OS
Learn MoreCockpit Display Development
Cockpit Display Development for Civil, Business Avionics
Learn MorePLC & Niagara Driver Development
ST PLC and Niagara Driver Development for Boiler and Chiller Energy Management Using Model Predictive Control and AI/ML
Learn MoreEmbedded Systems Training
Embedded systems training with emphasis on safety-critical systems software engineering
Learn MoreOur Tools
Languages and platforms we build on.
Standards We Support
Our Bibles
ARINC 661
The ARINC 661 standard for commercial aircraft cockpit displays normalizes the definition of a Cockpit Display System (CDS) as well as the communication between the CDS and User Applications (UA)
ARINC 661
The ARINC 661 standard for commercial aircraft cockpit displays normalizes the definition of a Cockpit Display System (CDS) as well as the communication between the CDS and User Applications (UA)
ARINC 663
ARINC 429
DO-178C
BACnet
Modbus
MISRA
Our Story
Why couldn't work be as defined as those beautiful ivory columns in that cathedral?
Back in November of 2012 our founder took a first time trip to Barcelona, Spain to attend an embedded systems conference. While there he took the time to visit the beautiful historic cathedral Sagrada La Familia — designed by architect Antoni Gaudi. The exterior of the building has ornate sculptures embedded throughout the entire structure telling the life and death story of Christ. The cathedral also doubled as a museum which contained small-scaled models of the various design iterations of the edifice, giving insight into the design and thought process of Gaudi.
Our founder was deeply inspired by the exterior and interior architecture — which was inspired by physical biological systems. After his inspirational experience, our founder prepared to return to the United States where a demanding work schedule was waiting for him. He reflected back on his past and current development projects and realized what a hectic mess they were. He asked himself “Why couldn't work be as defined as those beautiful ivory columns in that cathedral?” After that trip he vowed one day, he would create a company that offered holistic solutions to the industries he was passionate about — mainly avionics, automotive and building automation.
Leadership
Sheldon A. Gabriel has 20 years of software engineering experience across embedded systems and mobile application development, with a focus on safety-critical programs in automotive, aviation, medical devices, and building automation.
His engineering background spans IBM, Accenture, Chrysler, BMW, Bosch Building Technologies, Korean Air, and United Airlines — including product development and systems integration on DO-178 programs, the UConnect infotainment system for Chrysler, and IBM Watson Health medical device integration.
In 2014, Sheldon founded Ai-tronics Systems LLC, an Internet-of-Things physical security platform for smart buildings headquartered on the campus of the Illinois Institute of Technology, where he served as President and Chief Technical Officer. Ai-tronics built custom smart building and operating system solutions for Azena (Bosch) and Tridium (Honeywell).
He leads Sagrada Engineering Group - a senior-led safety-critical systems advisory, design, and architecture practice — pairing direct executive-level expertise with a curated bench of engineers and industry specialists.
Credentials
B.S. Computer Science (EE Emphasis) — Western Illinois University
Systems Engineering Training — MIT
Building Automation Certification — Tridium
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