Senior Security Engineer

Job Description

Location: Dallas, TX (Hybrid)

Our Company We're Hitachi Digital Services, a global digital solutions and transformation business with a bold vision of our world's potential. We're people-centric and here to power good. Every day, we future-proof urban spaces, conserve natural resources, protect rainforests, and save lives. This is a world where innovation, technology, and deep expertise come together to take our company and customers from what's now to what's next. We make it happen through the power of acceleration. Imagine the sheer breadth of talent it takes to bring a better tomorrow closer to today. We don't expect you to 'fit' every requirement – your life experience, character, perspective, and passion for achieving great things in the world are equally as important to us.

Meet Our Team

• Join a team of security experts and Forward Deployed Security Engineers dedicated to helping enterprise customers secure cloud, application, DevSecOps, and AI environments.
• Work closely with customers, architects, and engineering leaders to design innovative security solutions that address complex business and technical challenges.
• Be part of a collaborative culture that values technical excellence, customer success, mentorship, and continuous innovation.
• Contribute to the development of reusable security frameworks, reference architectures, and best practices that drive measurable security outcomes.

What You'll Be Doing

• Lead customer security engagements and provide technical leadership across cloud security, DevSecOps, application security, and AI security initiatives.
• Translate complex security challenges into scalable architectures, implementation roadmaps, and production-ready security controls.
• Manage teams of engineers, oversee technical delivery, and drive successful outcomes from discovery and design through implementation, validation, and operational handover.
• Conduct threat modeling, architecture reviews, and security assessments across cloud platforms, applications, APIs, and AI systems.
• Define and implement DevSecOps strategies, security automation, CI/CD security controls, software supply chain protections, and remediation workflows.
• Guide the design and security of AI solutions, including LLMs, RAG architectures, vector databases, AI agents, and MLOps platforms.
• Manage project risks, dependencies, escalations, and stakeholder communications while balancing security, performance, delivery timelines, and customer requirements.

What You'll Bring To The Team

• 7+ years of cybersecurity experience with proven success leading engineering teams and delivering large-scale security programs.
• Strong leadership experience mentoring engineers, reviewing technical work, and managing multiple security workstreams simultaneously.
• Deep expertise in Cloud Security, including identity management, workload protection, container security, Infrastructure as Code (IaC), and enterprise security architecture.
• Proven experience implementing DevSecOps practices, CI/CD security controls, automated testing, software supply chain security, and remediation workflows.
• Strong background in Application Security, including threat modeling, architecture reviews, security assessments, and API security.
• Hands-on experience with AI Security, including LLMs, RAG, vector databases, AI agents, MLOps, model deployment, and model lifecycle management.
• Knowledge of AI-specific threats and controls, including prompt injection, data leakage, insecure retrieval, excessive permissions, unsafe tool execution, monitoring, and security testing.
• Excellent customer-facing communication skills with experience presenting to executives, architects, security leaders, and engineering teams.
• Bachelor's degree or equivalent practical experience; advanced cloud or security certifications (CISSP, CCSP, AWS Security Specialty, Azure Security Engineer, GCP Security Engineer) are preferred.

About Us

We're a global, team of innovators. Together, we harness engineering excellence and passion to co-create meaningful solutions to complex challenges. We turn organizations into data-driven leaders that can make a positive impact on their industries and society. If you believe that innovation can bring a better tomorrow closer to today, this is the place for you.

Fostering innovation through diverse perspectives

Hitachi is a global company operating across a wide range of industries and regions. One of the things that sets Hitachi apart is the diversity of our business and people, which drives our innovation and growth.

We are committed to building an inclusive culture based on mutual respect and merit-based systems. We believe that when people feel valued, heard, and safe to express themselves, they do their best work.

How we look after you

We help take care of your today and tomorrow with industry-leading benefits, support, and services that look after your holistic health and wellbeing. We're also champions of life balance and offer flexible arrangements that work for you (role and location dependent). We're always looking for new ways of working that bring out our best, which leads to unexpected ideas. So here, you'll experience a sense of belonging, and discover autonomy, freedom, and ownership as you work alongside talented people you enjoy sharing knowledge with.

We're proud to say we're an equal opportunity employer and welcome all applicants for employment without attention to race, colour, religion, sex, sexual orientation, gender identity, national origin, veteran, age, disability status or any other protected characteristic. Should you need reasonable accommodations during the recruitment process, please let us know so that we can do our best to set you up for success.