TISA Software

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:

• 401(k)
• Health insurance

Education:

• Bachelor's (Preferred)

Experience:

• Embedded Devices or IOT: 3 years (Preferred)
• C++: 5 years (Preferred)

Language:

• English (Preferred)

Location:

• Houston, TX 77094 (Preferred)

Ability to Commute:

• Houston, TX 77094 (Preferred)

Work Location: In person