Senior C++ Developer with experience in IOT/ Embedded (only US Citizens or Green Card Holders)

TISA Software • Full-time • Houston, Texas, United States • $45 - $70 / hour • 3h ago

Company Overview

TISA Software LLC is a dynamic software engineering company building innovative applications and products for customers in the United States and abroad. We prioritize agility and pragmatic, cutting-edge technology to meet evolving business needs.

Role Summary

We’re seeking a Senior C++ Developer with recent, hands-on Embedded/IoT experience to design, build, and ship production-grade firmware and device software. You’ll work across the stack—from drivers and RTOS/Linux user space to device networking and cloud integration—enabling secure OTA updates, remote debugging, and near real-time data flows.

What You’ll Do

Develop, implement, and maintain C++ firmware for embedded Linux devices.
Build secure OTA update pipelines (bootloaders, A/B or rollback strategies, signed artifacts).
Enable remote debugging and observability (logging, crash dumps, GDB, JTAG/SWD, on-device diagnostics).
Design and optimize near real-time data transmission (low-latency I/O, buffering, QoS/retry, back-pressure).
Implement device networking (TCP/UDP, MQTT/HTTP(S), BLE/Wi-Fi, cellular); integrate with cloud IoT services.
Develop hardware abstraction layers, drivers, and BSPs; support board bring-up with EE partners.
Apply performance, memory, and power optimizations; ensure reliability in constrained environments.
Write tests (unit/integration/HIL), automate builds (CMake/Ninja), and contribute to CI/CD for firmware.
Participate in code reviews, threat modeling, and security hardening (secure boot, key management).
Collaborate in Agile teams with product and back-end engineers to deliver end-to-end device features.

Must-Have Qualifications

5+ years professional experience in C++ (modern C++17/20 preferred) building production software.
3+ years recent experience in Embedded and/or IoT development.
Proven, hands-on experience with OTA updates, remote debugging, firmware development, and near real-time data transmission.
Solid understanding of RTOS (e.g., FreeRTOS, Zephyr) or embedded Linux (user space, services, device tree basics).
Strong grasp of concurrency, interrupts, DMA, timers, and hardware interfaces (SPI/I²C/UART/CAN).
Build/test tooling: CMake, static analysis, unit testing (e.g., GoogleTest/Catch2), and Git.
Experience integrating devices with REST/MQTT/GraphQL back ends or IoT hubs (e.g., AWS IoT, Azure IoT).
Excellent debugging skills with oscilloscopes/logic analyzers and protocol analyzers where needed.

Nice to Have

Experience with Yocto/Buildroot, bootloaders (U-Boot/MCU boot), secure boot, and PKI/signing.
State management and messaging patterns on constrained devices (protobuf/CBOR/FlatBuffers).
Chip/board families (e.g., STM32, ESP32, NXP i.MX); low-power/battery optimization.
Python for tooling/test harnesses; Rust exposure a plus.
Field telemetry/observability pipelines and over-the-air configuration management.

Job Types: Full-time, Permanent

Pay: $45.00 - $70.00 per hour

Benefits: