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IBM researches, develops, manufactures, and markets technology products ranging from mainframe computers to cognitive solutions, always with a core drive to innovate and explore new fields.

Size: 10000+ employees
Industry: Technology

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Introduction

A career in IBM Software means you'll be part of a team that transforms our customers' challenges into solutions. Seeking new possibilities and always staying curious, we are a team dedicated to creating the world's leading AI-powered, cloud-native software solutions for our customers. Our renowned legacy creates endless global opportunities for our IBMers, so the door is always open for those who want to grow their career.

We are seeking a Principal Software Developer with expertise in C and the Windows platform to join our Red Hat JBoss Web Server Software Engineering team and fill a critical technical leadership role.

Your role and responsibilities

As a key member of the team, you will set the technical direction and provide architectural oversight for the Red Hat JBoss Core Services (JBCS) and Red Hat JBoss Web Server (JWS) products. This role is central to our team's success, focusing on the long-term strategy for the Apache HTTP Server (httpd), its vast ecosystem of library dependencies, and creating and supporting our product build infrastructure, with a crucial emphasis on the Windows platform.

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Your responsibilities will be to:Architect and ensure the long-term stability and security of our Windows-based components, including the core web server (Apache HTTP Server), its dependencies (like openssl, apr, curl), and Apache Tomcat connectors.

Proactively manage the technology roadmap by staying informed of future changes in the Windows Operating System, dependencies, and upstream projects to prevent integration issues and guide our product strategy.

Lend your expertise to help build and evolve the cross-platform native build infrastructure, which underpins several other products that deliver on the Windows platform.

Serve as the ultimate technical authority and mentor on C language development, Windows system internals, and secure coding practices, influencing engineering best practices across multiple product teams.

Lead collaboration with upstream communities, the Product Security team, and Customer Support to resolve the most complex technical challenges and drive strategic initiatives.

Act as a key technical contact for high-stakes customer engagements, providing expert guidance and resolving critical issues independently when required.

Required education Bachelor's Degree Preferred education Bachelor's Degree Required technical and professional expertise Architectural Expertise: A distinguished background in software engineering, with expert-level mastery of the C language and a proven track record of architecting, designing, and delivering foundational, long-lasting solutions for complex, cross-platform software systems.

Windows Platform Mastery: Authoritative knowledge of the Windows development platform, including managing VM infrastructure, navigating MSDN licensing, and a deep understanding of the Java Native Interface (JNI) and Windows services (e.g., Apache Commons Daemon/procrun).Broad Technical Scope: Deep and broad expertise across multiple technical areas, including web servers (specifically Apache HTTP Server), their critical dependencies, and software packaging (RPMs and zip files).Strategic Leadership and Mentorship: Demonstrated experience setting technical direction for a major product segment and influencing engineering best practices. You must have a history of mentoring senior engineers and acting as a key technical leader across multiple workgroups.

Passion for Open Source: A profound passion for Open Source principles and a history of leadership in open, collaborative environments. You must be able to thrive as a leader within a highly distributed team.

Preferred technical and professional experience Upstream Leadership: Deep involvement and leadership within the Apache Software Foundation (ASF) ecosystem is highly preferred. Committer status within the Apache HTTP Server project is a significant advantage.In-Depth Ecosystem Knowledge: Intimate familiarity with key Apache HTTP Server dependencies on Windows and the Apache Tomcat connectors.

Scripting Proficiency: Extensive experience with languages like Bash, Python, or Groovy is a plus.ABOUT BUSINESS UNIT

IBM Software infuses core business operations with intelligence-from machine learning to generative AI-to help make organizations more responsive, productive, and resilient. IBM Software helps clients put AI into action now to create real value with trust, speed, and confidence across digital labor, IT automation, application modernization, security, and sustainability. Critical to this is the ability to make use of all data, because AI is only as good as the data that fuels it. In most organizations data is spread across multiple clouds, on premises, in private datacenters, and at the edge. IBM's AI and data platform scales and accelerates the impact of AI with trusted data, and provides leading capabilities to train, tune and deploy AI across business. IBM's hybrid cloud platform is one of the most comprehensive and consistent approach to development, security, and operations across hybrid environments-a flexible foundation for leveraging data, wherever it resides, to extend AI deep into a business.

YOUR LIFE @ IBM

In a world where technology never stands still, we understand that, dedication to our clients success, innovation that matters, and trust and personal responsibility in all our relationships, lives in what we do as IBMers as we strive to be the catalyst that makes the world work better.

Being an IBMer means you'll be able to learn and develop yourself and your career, you'll be encouraged to be courageous and experiment everyday, all whilst having continuous trust and support in an environment where everyone can thrive whatever their personal or professional background.

Our IBMers are growth minded, always staying curious, open to feedback and learning new information and skills to constantly transform themselves and our company. They are trusted to provide on-going feedback to help other IBMers grow, as well as collaborate with colleagues keeping in mind a team focused approach to include different perspectives to drive exceptional outcomes for our customers. The courage our IBMers have to make critical decisions everyday is essential to IBM becoming the catalyst for progress, always embracing challenges with resources they have to hand, a can-do attitude and always striving for an outcome focused approach within everything that they do.

Are you ready to be an IBMer?

ABOUT IBM

IBM's greatest invention is the IBMer. We believe that through the application of intelligence, reason and science, we can improve business, society and the human condition, bringing the power of an open hybrid cloud and AI strategy to life for our clients and partners around the world.

Restlessly reinventing since 1911, we are not only one of the largest corporate organizations in the world, we're also one of the biggest technology and consulting employers, with many of the Fortune 500 companies relying on the IBM Cloud to run their business.

At IBM, we pride ourselves on being an early adopter of artificial intelligence, quantum computing and blockchain. Now it's time for you to join us on our journey to being a responsible technology innovator and a force for good in the world.

IBM is proud to be an equal-opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, gender, gender identity or expression, sexual orientation, national origin, genetics, pregnancy, disability, neurodivergence, age, or other characteristics protected by the applicable law. IBM is also committed to compliance with all fair employment practices regarding citizenship and immigration status.

OTHER RELEVANT JOB DETAILS

For additional information about location requirements, please discuss with the recruiter following submission of your application.

Client-provided location(s): Barcelona, Spain

Job ID: IBM-75335

Employment Type: OTHER

Posted: 2026-01-04T18:42:41
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