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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Firmware Engineer - **Company:** Ascendion - **Location:** Barcelona, Spain - **Contract:** Permanent contract - **Skills:** Microsoft Windows, Application Programming Interfaces (APIs), Artificial Intelligence, Apple Mac Systems, User Authentication, Unit Testing, Software Bug Management, C++ (Programming Language), CMake, Computer Engineering, Concurrent Computing, Continuous Integration, Software Debugging, Software Design Patterns, Linux, Linux on Embedded Systems, Embedded Software, Firmware, GNU Debuggers, Design of User Interfaces, Joint Test Action (IEEE Standards), Python (Programming Language), Kerberos (Protocol), Lightweight Directory Access Protocols (LDAP), Linux System Administration, Machine Learning, Packet Analyzer, OpenSSL, Package Management Systems, Public Key Infrastructure, Qt Modeling Language (QML), Qt (Software), Real-Time Operating Systems, Salesforce.Com, Web Application Security, Software Engineering, Systems Integration, Tcl (Programming Language), Toolchain, Wireshark, SSL Certificate Management, Multithreading, Transport Layer Security, Cloud Platform System, Generative AI, Yocto, Restful APIs, Software Version Control, Docker, Jenkins - **Published:** August 23, 2026 - **Apply:** https://www.buscojobs.com.es/firmware-engineer-en-barcelona-ID-368618214 ## About the Role We are seeking an experienced Firmware Security Engineer with strong expertise in embedded firmware development, security, networking, and Linux-based systems. The ideal candidate will design, develop, test, and integrate secure firmware components for embedded devices while working closely with cross-functional engineering teams. Experience with C/C++, Python, Embedded Linux, security protocols, networking, debugging tools, and firmware validation is highly preferred. Aumente sus posibilidades de conseguir una entrevista leyendo la siguiente descripción general de este puesto antes de presentar su candidatura. Key Requirements Strong experience in Embedded Firmware Development and Software Engineering. Hands-on experience with C, C++ ******), Python, and TCL programming languages. Experience with concurrent programming, multithreaded, and multi-process systems. Strong understanding of firmware architecture, software design patterns, and scalable embedded software design. Experience developing Qt/QML user interfaces. Hands-on experience with APIs and secure web services. Good knowledge of Assembly (when required), RTOS concepts, and embedded systems development. Strong experience working in Linux (embedded and development environments), Windows, and macOS. Experience with Git/GitHub version control systems. Hands-on debugging experience using JTAG, GDB, logic analyzers, oscilloscopes, and memory debugging tools. Experience with unit testing frameworks (GTest/GMock). Experience using Make, CMake, and Jenkins or similar CI/CD tools. Familiarity with GCC ARM toolchains, package managers (apt, pip), and Docker-based development environments. Strong understanding of authentication and authorization technologies including Kerberos, SASL, and LDAP. Experience implementing TLS/SSL, OpenSSL, PKI, certificate management, and secure communication protocols. Knowledge of Secure REST APIs, and embedded security best practices. Experience using Wireshark for networking analysis, packet capture, and protocol debugging. Hands-on experience with Yocto for Embedded Linux image customization and layer integration. Experience with firmware testing, validation, bug fixing, system integration, and prototype support. Ability to analyze software changes, resolve manufacturing and prototype issues, and collaborate with firmware, software, and hardware engineering teams. Excellent problem-solving, debugging, and analytical skills. Strong communication, documentation, and stakeholder collaboration skills. Fluent English is required; additional European languages are a plus. ## Description We are seeking an experienced Firmware Security Engineer with strong expertise in embedded firmware development, security, networking, and Linux-based systems.The ideal candidate will design, develop, test, and integrate secure firmware components for embedded devices while working closely with cross-functional engineering teams.Experience with C/C++, Python, Embedded Linux, security protocols, networking, debugging tools, and firmware validation is highly preferred.Aumente sus posibilidades de conseguir una entrevista leyendo la siguiente descripción general de este puesto antes de presentar su candidatura.Key Requirements Strong experience in Embedded Firmware Development and Software Engineering.Hands-on experience with C, C++ ******), Python, and TCL programming languages.Experience with concurrent programming, multithreaded, and multi-process systems.Strong understanding of firmware architecture, software design patterns, and scalable embedded software design.Experience developing Qt/QML user interfaces.Hands-on experience withAPIs and secure web services.Good knowledge of Assembly (when required), RTOS concepts, and embedded systems development.Strong experience working in Linux (embedded and development environments), Windows, and macOS.Experience with Git/GitHub version control systems.Hands-on debugging experience using JTAG, GDB, logic analyzers, oscilloscopes, and memory debugging tools.Experience with unit testing frameworks (GTest/GMock).Experience using Make, CMake, and Jenkins or similar CI/CD tools.Familiarity with GCC ARM toolchains, package managers (apt, pip), and Docker-based development environments.Strong understanding of authentication and authorization technologies including Kerberos, SASL, and LDAP.Experience implementing TLS/SSL, OpenSSL, PKI, certificate management, and secure communication protocols.Knowledge ofSecure REST APIs, and embedded security best practices.Experience using Wireshark for networking analysis, packet capture, and protocol debugging.Hands-on experience with Yocto for Embedded Linux image customization and layer integration.Experience with firmware testing, validation, bug fixing, system integration, and prototype support.Ability to analyze software changes, resolve manufacturing and prototype issues, and collaborate with firmware, software, and hardware engineering teams.Excellent problem-solving, debugging, and analytical skills.Strong communication, documentation, and stakeholder collaboration skills.Fluent English is required; additional European languages are a plus.About Us: Ascendion is a global, leading provider of AI-first software engineering services, delivering transformative solutions across North America, APAC, and Europe.We are headquartered in New Jersey.We combine technology and talent to deliver tech debt relief, improve engineering productivity solutions, and accelerate time to value, driving our clients' digital journeys with efficiency and velocity.Guided by our \"Engineering to the power of AI\" [EngineeringAI] methodology, we integrate AI into software engineering, enterprise operations, and talent orchestration, to address critical challenges of trust, speed, and capital.For more information, please go to Ascendion ( ), you: Will get to work on numerous challenging and exciting projects on our various offerings including Salesforce, AI/Data Science, Generative AI/ML, Automation, Cloud Enterprise and Product/Platform Engineering.At Ascendion you have high chances of project extension or redeployment to other clients.Additionally, you can also share CV of anyone you know.xbhjioe We have a referral policy in place. ## Related Videos - [Code to Road in < 12 hours](https://www.wearedevelopers.com/videos/1082-code-to-road-in-12-hours) - [Docker network without Docker](https://www.wearedevelopers.com/videos/1418-docker-network-without-docker) - [Security Pitfalls for Software Engineers](https://www.wearedevelopers.com/videos/726-security-pitfalls-for-software-engineers) - [Docker exec without Docker](https://www.wearedevelopers.com/videos/1094-docker-exec-without-docker) - [More efficient software for more efficient microchips](https://www.wearedevelopers.com/videos/1164-more-efficient-software-for-more-efficient-microchips) - [Discover the open source trio you didn’t expect: .NET and PostgreSQL on Linux](https://www.wearedevelopers.com/videos/2042-discover-the-open-source-trio-you-didn-t-expect-net-and-postgresql-on-linux) ## Related Articles - [Fully Remote Software Engineer Jobs](https://www.wearedevelopers.com/magazine/447-fully-remote-software-engineer-jobs) - [Where To Find Software Engineering Jobs](https://www.wearedevelopers.com/magazine/396-where-to-find-software-engineering-jobs) - [The 12 Best Jobs for Software Engineers](https://www.wearedevelopers.com/magazine/401-the-12-best-jobs-for-software-engineers) - [Where to Find Entry-Level Software Engineering Jobs](https://www.wearedevelopers.com/magazine/397-where-to-find-entry-level-software-engineering-jobs) - [Is Software Engineering Over-Saturated?](https://www.wearedevelopers.com/magazine/418-is-software-engineering-over-saturated) - [Top-Paying Tech Jobs (with Salaries)](https://www.wearedevelopers.com/magazine/372-top-paying-tech-jobs-with-salaries)