Sr Lead Software Engineer, AI Security Platform

Northern Trust Corp; Chicago (IL); Hybrid; USD 115,000 - 195,000; Full time

Job summary

Northern Trust Corp in Chicago, IL seeks a Senior Lead Software Engineer to advance our AI security platform for code analysis. You will own architecture, lead a skilled team, and shape frontend and backend implementations with a focus on secure, scalable cloud-native solutions.

The role demands 12+ years of software engineering experience, leadership capability, and strong expertise in React, Python, REST APIs, and AI/Large Language Model integrations.

Qualifications

• Requires 12+ years of professional software engineering experience.
• 5+ years in lead, principal, or senior engineering roles.

Responsibilities

• Owns the AI Code Scanner platform and drives modernization and scalability.
• Mentors junior engineers and leads front-end and back-end work.
• Collaborates on secure cloud-native solutions and AI service integrations.

Skills

React development

Python development

REST APIs

Authentication

Automation frameworks

Test automation

LLMs integration

Agent-based workflows

API design

Job description

## Sr Lead Software Engineer, AI Security PlatformApply: Chicago, IL: Full time: Posted Today: R161851**About Northern Trust** As a global leader in innovative wealth management, asset servicing, asset management and banking services, Northern Trust (Nasdaq: NTRS) is proud to guide the world’s most successful individuals, families, corporations and institutions. Since 1889, we have aligned our efforts with our three guiding Principles That Endure: Service, Expertise, and Integrity. Together, they reflect the three cornerstones of business conduct which we strive to instill in our employees, whom we call partners, and to provide to our clients and the communities we serve worldwide. With more than 135 years of financial experience and over 24,000 partners, we serve the world’s most sophisticated clients using leading technology and exceptional service. We are seeking a highly experienced Senior Lead Software Engineer to support technical development of our AI-powered Code Security Scanner platform. This platform leverages frontier AI models and advanced security automation to identify, validate, and report software vulnerabilities across enterprise codebases.This role will be responsible for ongoing development, architectural evolution, and long-term enhancement of the platform. The successful candidate must be equally comfortable designing user-facing applications, building automation, integrating AI services, and securing cloud-native solutions.**Platform Ownership*** Serve as a lead technical developer for the AI Code Scanner platform* Implement modernization, enhancements, and scalability initiatives* Mentor junior team members**Front-End Development*** Improve user experience, reporting dashboards, workflow management, and administrative capabilities* Implement secure authentication and authorization patterns**Backend & AI Engineering*** Maintain and extend orchestration and scanning services* Expand and manage integrations with LLM-based security analysis capabilities* Enhance automated vulnerability analysis, reporting, and verification workflows**Experience*** 12+ years of professional software engineering experience* 5+ years in a lead, principal, or senior engineering role* Experience supporting enterprise-scale applications in regulated environments**Technical Skills*** Expert-level React development* Modern SPA architecture* REST APIs and authentication integrations* Expert-level Python development* API design and integration* Automation and orchestration frameworks* Test automation and quality engineering* Expert-level Python development* API design and integration* Automation and orchestration frameworks* Test automation and quality engineering* Experience integrating Large Language Models (LLMs)* Agent-based workflows and automation frameworks* Application security and vulnerability managementSalary Range:$114,500 - 194,700 USD*Salary range is a good faith estimate of base pay. Northern Trust provides a comprehensive benefits package including retirement benefits (401k and pension), health and welfare benefits (medical, dental, vision, spending accounts and disability), paid time off, parental and caregiver leave, life & accident insurance, and other voluntary and well-being benefits. Northern Trust also provides a discretionary bonus program that may include an equity component.* **Work Authorization** Applicants must be authorized to work in the U.S. without the need for employment-based visa sponsorship now or in the future. Northern Trust will not sponsor applicants for U.S. work visa status for this opportunity (no sponsorship is available for H-1B, L-1, TN, O-1, E-3, H-1B1, F-1, J-1, OPT, CPT or any other employment-based visa).