High-Performance Firmware for Aerospace, Defense, Medical, Industrial, and IoT Systems

Sheridan Technologies provides custom firmware development services for companies building complex, high-reliability hardware systems. We design, optimize, and maintain mission-critical firmware that runs close to the metal, interfaces directly with hardware, and performs reliably in regulated and high-stakes environments.

From board bring-up and low-level drivers to real-time operating systems, secure bootloaders, and sensor fusion, our firmware engineers deliver robust, production-ready solutions that reduce risk, accelerate time-to-market, and eliminate costly rework.

Whether you are launching a new device, modernizing legacy hardware, or rescuing a stalled program, our Dynamic Expert Network™ ensures your firmware is built by the right specialist, at the right time, with a single accountable technical lead.

Why Choose Sheridan Technologies for Firmware Development

Most firmware failures happen because teams treat firmware as an afterthought. We do the opposite.

Sheridan Technologies is trusted by clients in aerospace, defense, medical devices, industrial automation, and advanced R&D because we build firmware with discipline, foresight, and accountability from day one.

What sets us apart:

• Dynamic Expert Network™
  Your firmware is developed by senior specialists matched precisely to your hardware, domain, and constraints, not by whoever happens to be available.

• Mission-Critical Experience
  We deliver firmware for systems where failure is not an option, including guided weapons, UAVs, medical devices, and industrial control systems.

• End-to-End Accountability
  Firmware, hardware, software, suppliers, and manufacturing partners are orchestrated under a single technical lead, eliminating handoff gaps.

• Design for Test & Manufacturing from Day One
  We identify integration risks early and design firmware that supports validation, diagnostics, and production testing.

• Program Rescue Expertise
  We specialize in stabilizing late, over-budget, or technically stalled firmware programs and getting them across the finish line.

Custom Firmware Development Capabilities

We deliver embedded and firmware solutions across a wide range of processors, operating systems, and communication interfaces.

Firmware & Embedded Services

• Board bring-up and low-level hardware drivers

• Bare-metal and RTOS-based firmware development

• Secure bootloader design and firmware update systems

• Power, performance, and memory optimization

• Sensor integration, calibration, and signal processing

• Firmware architecture and refactoring

• Legacy firmware modernization and reverse engineering

• Automated test and validation support

Supported Processors & Hardware Platforms

• ARM Cortex-M and Cortex-A

• STM32, NXP, Microchip, Renesas, TI platforms

• PIC, AVR, MSP430, C2000

• Custom SoCs and proprietary hardware

Operating Systems & Frameworks

• FreeRTOS, Zephyr, VxWorks

• Embedded Linux, Yocto

• Bare-metal and safety-critical architectures

Communication Protocols

• UART, SPI, I²C, CAN,

• Ethernet, RS-485, Modbus

• Bluetooth, BLE, Wi-Fi, LoRa, Zigbee

• MIL-STD-1553 and custom protocols

Industries We Serve

Our firmware solutions are built for environments where reliability, predictability, and compliance matter.

• Aerospace & Defense
  Flight control systems, guided munitions, avionics, ISR platforms, GPS-denied navigation

• Medical Devices
  Surgical devices, implantable sensors, regulated embedded systems

• Industrial Automation
  Robotics, vision-guided systems, metrology, remote monitoring

• IoT & Connected Devices
  Edge devices, smart products, low-power wireless systems

• Advanced R&D and Skunk-Works Programs
  Rapid prototyping, proof-of-concepts, and high-risk technical development

Our Firmware Development Process

We use a disciplined, transparent process designed to surface problems early and build predictability into every engagement.

1. Discovery & Requirements
   We define functional requirements, hardware interfaces, performance constraints, and compliance needs.

2. Architecture & Design
   We design firmware architecture, select operating systems, define interfaces, and plan test strategies.

3. Development & Integration
   Firmware is developed in structured iterations with continuous hardware integration and verification.

4. Testing & Validation
   We support unit testing, hardware-in-the-loop testing, environmental validation, and production test readiness.

5. Deployment & Lifecycle Support
   We deliver secure firmware, documentation, and long-term support for updates and maintenance.

Firmware Project Highlights

Guided Weapon Firmware Development
Developed real-time navigation and control firmware for a low-cost guided rocket system, including sensor fusion and closed-loop guidance in GPS-denied environments.

UAV Flight Controller Optimization
Delivered high-performance firmware enabling autonomous ISR missions with low latency, low power consumption, and minimal RF emissions.

Medical Device Embedded Firmware
Designed low-power, safety-critical firmware for a regulated surgical device, supporting validation, traceability, and long-term maintainability.

Frequently Asked Questions

What is custom firmware development?
Custom firmware development involves writing low-level software that directly controls hardware, sensors, and communication interfaces, optimized for performance, reliability, and system constraints.

Can you work with existing or legacy hardware?
Yes. We frequently modernize, refactor, and extend legacy firmware for unsupported or end-of-life platforms.

Do you support regulated or compliance-driven projects?
Yes. We have experience supporting aerospace, defense, and medical device development where documentation, traceability, and validation are critical.

How long does firmware development take?
Timelines depend on system complexity, but our Agile, sprint-based approach delivers visible progress every 1–2 weeks.

Let’s Build Your Firmware the Right Way

If you need custom firmware development that reduces risk, accelerates delivery, and performs reliably in the real world, Sheridan Technologies is ready to help.

We handle the technical complexity so you can focus on what matters most.

Request a consultation today.