SENIOR EMBEDDED SOFTWARE DEVELOPER (NETWORKING, SECURITY)

Sigma Inc.

United States

4 days ago

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Role details

Contract type

Permanent contract

Employment type

Full-time (> 32 hours)

Experience level

Expert

Experience required

5 years minimum

Working hours

Regular working hours

Languages

English

Job source

arc.dev

Tech stack

LTE (Telecommunication) User Authentication Bluetooth Low Energy (Bluetooth) C++ (Programming Language) Cyber Security Dynamic Host Configuration Protocol Software Debugging Domain Name System (DNS) Linux on Embedded Systems Embedded Software Ethernet Firmware

+30 more

FreeRTOS Hardware Design Hardware Security Module Hypertext Transfer Protocols (HTTP) IPv4 IPv6 Message Queuing Telemetry Transport (MQTT) Network Protocols Public Key Infrastructure Real-Time Operating Systems Secure Coding TCP/IP Universal Asynchronous Receiver/Transmitter WebSocket Wi-Fi Technology SSL Certificate Management Computer Networking Systems Transport Layer Security Google Cloud Serial Peripheral Interface PIC Microcontroller Computer Network Technologies Git System-level Testing Gitlab-ci Zigbee Wireless Technologies Azure IoT U-Boot Docker

Job description

We are looking for a Senior Embedded Software Developer with strong networking and cybersecurity expertise to design and implement secure, reliable embedded systems with cloud connectivity and remote device management capabilities.

Customer

Our Customer is a global technology company specializing in climate technologies and energy management solutions. The company develops connected products and intelligent control systems for commercial, industrial, and residential environments, helping improve energy efficiency, operational reliability, and sustainability through modern smart infrastructure technologies.

Project

The project focuses on developing secure, connected embedded systems that integrate with cloud platforms, support remote device management, and ensure reliable communication in real-world environments. The solution combines embedded software engineering, networking technologies, and cybersecurity principles to deliver scalable and reliable IoT solutions for modern edge devices., * Design and implement embedded software components and device functionality for connected IoT systems

Develop, optimize, and maintain networking capabilities for cloud-connected embedded devices
Implement telemetry, monitoring, remote provisioning, and Firmware-Over-the-Air update mechanisms
Integrate and troubleshoot communication technologies including Ethernet, Wi-Fi, BLE, LTE, Zigbee, and Thread
Develop secure communication mechanisms following embedded cybersecurity best practices
Design and maintain bootloaders, firmware update systems, and device lifecycle management functionality
Perform debugging, troubleshooting, and root-cause analysis on real hardware platforms
Conduct unit, integration, and system-level testing
Collaborate with architects, hardware engineers, QA specialists, and security experts
Participate in technical discussions, estimations, planning sessions, and Customer communication
Prepare and maintain technical documentation
Ensure compliance with engineering standards, security requirements, and quality processes
Contribute to continuous improvement of development practices and engineering workflows

WHY US

Diversity of Domains & Businesses
Variety of technology
Health & Legal support
Active professional community
Continuous education and growing
Flexible schedule
Remote work
Outstanding offices (if you choose it)
Sports and community activities

Requirements

C/C++ / expert

Embedded Systems / expert

Networking Protocols / strong

Embedded Cybersecurity / strong

English / strong

Join our Embedded Development team at Sigma Software and contribute to the development of next-generation connected IoT devices and edge solutions!, * 5+ years of commercial experience in embedded software development using C/C++

Strong experience with ARM-based microcontrollers such as STM32, NXP, TI, or Silicon Labs
Strong understanding of embedded systems architecture, RTOS concepts, and hardware-software interaction
Practical experience with wireless technologies including BLE, Wi-Fi, LTE, Zigbee, or Thread
Solid networking knowledge including TCP/IP, UDP, DHCP, DNS, IPv4/IPv6, MQTT, HTTP/HTTPS, and WebSockets
Experience with cloud-connected embedded devices and IoT ecosystems
Experience implementing OTA/FOTA firmware update mechanisms
Understanding of embedded cybersecurity concepts including secure boot, TLS/SSL, certificate management, authentication, and cryptographic fundamentals
Experience with communication interfaces such as UART, SPI, I2C, CAN, and Ethernet
Experience with FreeRTOS, Zephyr, Embedded Linux, or similar platforms
Strong debugging and troubleshooting skills using J-Link, ST-Link, GDB, or equivalent tools
Experience with Git-based development workflows
Upper-Intermediate or higher English level

WILL BE A PLUS

Experience with cybersecurity standards and secure development practices for IoT products
Practical experience with networking stacks such as lwIP
Experience with secure bootloader development and device provisioning
Knowledge of PKI, certificate-based authentication, and hardware security modules
Familiarity with Docker, GitLab CI/CD, and automated testing frameworks
Experience with AWS IoT, Azure IoT, or Google Cloud IoT
Basic hardware design and debugging knowledge
Experience with secure manufacturing and device onboarding processes

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