Two core capabilities, delivered with depth across the automotive and industrial embedded systems stack. I would keep this very close to your current design because it is already a good fit.
Bare-metal and RTOS-based firmware development for custom ECU and controller platforms.
BSW configuration, RTE and application-layer development for Classic AUTOSAR ECUs.
Service-oriented embedded software development for high-performance compute platforms.
Controller Area Network communication software for in-vehicle embedded applications.
Unified Diagnostic Services software for ECU diagnostic communication.
Measurement and calibration protocol software for development and calibration workflows.
Commercial-vehicle communication protocol software for J1939-based networks.
Real-time operating-system software based on OSEK concepts for automotive ECUs.
Flash bootloader software for ECU reprogramming and software-update workflows.
Modbus RTU and Modbus TCP communication software for industrial embedded products.
Diagnostics over IP software for Ethernet-based automotive diagnostics.
Service-oriented communication middleware for IP-based automotive systems.

Engineering support across the embedded software lifecycle u2014 from system-level decisions and software architecture to implementation, integration and technical

Definition and review of software architecture, module boundaries, interfaces, communication paths and integration approach.

Creation, configuration, porting and integration of communication, diagnostics, bootloader, middleware and platform components.

Development support covering vehicle-network communication, diagnostics, body electronics, connected systems and product integration.

Support for architecture choices, platform selection, protocol integration, design reviews, issue analysis and development planning.

Target-board bring-up, component integration, communication verification, debugging and test-readiness support.
Schematic capture & PCB layout.nn
Rapid build & board bring-up.nnn
Functional & compliance testing.nnnn
Manufacturing & sustaining.