Lead Application Security Architect

JLL supports the Whole You, personally and professionally.

Our people at JLL are shaping the future of real estate for a better world by combining world class services, advisory and technology to our clients. We are committed to hiring the best, most talented people in our industry; and we support them through professional growth, flexibility, and personalized benefits to manage life in and outside of work. Whether you’ve got deep experience in commercial real estate, skilled trades, and technology, or you’re looking to apply your relevant experience to a new industry, we empower you to shape a brighter way forward so you can thrive professionally and personally.

Senior Application Security Architect

Overview

At JLL, we're reimagining how the world's most complex real estate environments are secured, operated, and experienced. The Application Security Architect is a senior individual contributor responsible for bridging application security engineering and enterprise security architecture at JLL.

This role designs and owns security architectures for application ecosystems, integrates security into the software development lifecycle (SDLC), and serves as a technical authority on secure design patterns, threat modeling, and DevSecOps practices. Operating at the Senior level, this position independently leads application security initiatives, mentors junior engineers and developers, and partners across engineering, architecture, and business teams to reduce risk and enable secure digital transformation.

If you’re a strategic thinker with application security expertise who thrives in a large, dynamic environment and wants their work to have real, visible impact, we want to hear from you.

Essential Duties and Responsibilities:

Security Architecture \& Design

Design and maintain security architecture standards, policies, and patterns for enterprise applications, platforms, and cloud-native environments, ensuring alignment with JLL's technology strategy and risk posture.

Develop and enforce secure design patterns, reference architectures, and architecture decision records (ADRs) for application security across development teams.

Lead security architecture reviews for new and existing applications, evaluating designs against frameworks such as OWASP, NIST, and SANS.

Integrate zero-trust principles and defense-in-depth strategies into application architecture to reduce attack surface and support enterprise risk management goals.

DevSecOps \& Secure Development Lifecycle

Define and maintain a standardized set of enterprise application security requirements and produce metrics to report performance against those requirements.

Lead threat modeling sessions for new application features and system integrations, producing actionable remediation guidance for development teams.

Champion secure coding standards and developer security enablement programs in collaboration with platform and application engineering teams.

Risk, Compliance \& Stakeholder Engagement

Analyze complex security requirements across multiple technology domains and design comprehensive security solutions that address enterprise risk and regulatory compliance obligations.

Communicate security architecture designs, risk assessments, and remediation recommendations to technical and non-technical stakeholders across business units.

Coordinate security design reviews and approval processes, facilitating alignment between security, engineering, and enterprise architecture teams.

Contribute to JLL's application security strategy roadmap, identifying emerging threats and recommending enhancements to the secure development and architecture programs.

Mentorship \& Team Leadership

Provide technical guidance and mentoring to junior security engineers, developers, and architects on application security principles, secure coding practices, and architectural standards.

Lead cross-functional security initiatives, driving collaborative approaches to security integration across development and architecture teams.

Support secure development training and awareness programs to build security competency across engineering organizations.

Required Knowledge, Skills, and Abilities:

Technical Knowledge

Comprehensive knowledge of application security methodologies, including OWASP Top 10, SANS/CWE, secure development frameworks, and security architecture design patterns.

Demonstrated experience designing security architectures for cloud-native environments (AWS, Azure, GCP), microservices, APIs, and containerized workloads.

Strong proficiency in DevSecOps practices and tooling: SAST, DAST, SCA, container image scanning, secrets management, and CI/CD security integration.

Experience with enterprise security frameworks including NIST CSF, NIST SP 800-53, ISO 27001, and zero-trust architecture principles.

Working knowledge of identity and access management (IAM), OAuth 2.0/OIDC, and application-layer authentication and authorization controls.

Understanding of cryptography, data protection, encryption, and Public Key Infrastructure

Familiarity with threat modeling methodologies (STRIDE, PASTA, or equivalent) and their application to complex distributed application architectures.

Knowledge of OWASP: GenAi, LLM Top 10, Security Exchange, Ai Exchange a plus

Skills \& Abilities

Ability to analyze complex application architectures and translate security requirements into practical, implementable design solutions.

Strong communication skills with the ability to convey technical security risks and architectural recommendations to diverse stakeholders including development teams, business leaders, and enterprise architects.

Demonstrated ability to lead security assessments, architecture reviews, and cross-functional security initiatives independently.

Proven capability to mentor and guide junior security professionals and developers on secure design practices and security engineering standards.

Analytical and problem-solving skills applied to sophisticated security integration challenges with enterprise-wide implications.

Ability to balance security rigor with development velocity, enabling secure delivery of digital applications and services.

Education \& Experience

Bachelor's degree in Computer Science, Information Security, Software Engineering, or a related field; equivalent experience considered.

7+ years of experience in information security with a focus on application security engineering, secure software development, or security architecture.

Relevant certifications preferred: CSSLP, CISSP, AWS/Azure Security Specialty, OSCP, or equivalent application security or architecture credentials.

If this job description resonates with you, we encourage you to apply even if you don’t meet all of the requirements below. We’re interested in getting to know you and what you bring to the table!

Personalized benefits that support personal well-being and growth:

JLL recognizes the impact that the workplace can have on your wellness, so we offer a supportive culture and comprehensive benefits package that prioritizes mental, physical and emotional health.

About JLL –

We’re JLL—a leading professional services and investment management firm specializing in real estate. We have operations in over 80 countries and a workforce of over 102,000 individuals around the world who help real estate owners, occupiers and investors achieve their business ambitions. As a global Fortune 500 company, we also have an inherent responsibility to drive sustainability and corporate social responsibility. That’s why we’re committed to our purpose to shape the future of real estate for a better world. We’re using the most advanced technology to create rewarding opportunities, amazing spaces and sustainable real estate solutions for our clients, our people, and our communities.

Our core values of teamwork, ethics and excellence are also fundamental to everything we do and we’re honored to be recognized with awards for our success by organizations both globally and locally.

Creating a diverse and inclusive culture where we all feel welcomed, valued and empowered to achieve our full potential is important to who we are today and where we’re headed in the future. And we know that unique backgrounds, experiences and perspectives help us think bigger, spark innovation and succeed together.