Jobs › Northern Trust

Principal, SRE

Northern Trust · Chicago, IL · $137,400–$233,600 a year · Full time

Posted Sep 11, 2026 · We last checked this listing on Oct 6, 2026

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Likely interview questions for this role

Written from this job description, not a generic list. Each one notes what the interviewer is really checking.

About your past

Walk me through how you set a reliability strategy across many platforms owned by different teams.

What they are checking: Whether they have worked at enterprise scale and can create standards others adopt.

Tell me about an outage that taught you something important about system design.

What they are checking: Whether they learn from incidents at the architectural level rather than only patching the symptom.

What would you do

An important platform keeps missing its reliability targets, but the team wants to keep shipping features. What do you do?

What they are checking: Whether they can use error budgets and influence to rebalance priorities without simply forcing a freeze.

How would you build reliability into architecture reviews and lifecycle governance without slowing teams down?

What they are checking: Whether they can embed resilience principles in governance, which the posting describes, in a practical way.

How do you convince senior technology leaders to invest in reliability work that has no visible feature?

What they are checking: Whether they can make a business case for resilience that senior leaders will fund.

About the work

The posting says reliability is a design-time concern. What does that mean to you in practice?

What they are checking: Whether they think about building resilience into architecture rather than fixing it later through operations.

How would you define SLOs and error budgets for a critical client-facing banking platform?

What they are checking: Whether they can tie reliability targets to what clients actually experience and use them to guide decisions.

How do you design a system to fail gracefully when a dependency it relies on goes down?

What they are checking: Whether they know patterns like timeouts, circuit breakers, bulkheads and fallback behavior.

How do you decide between active-active and active-passive designs across regions for a financial system?

What they are checking: Whether they understand the trade-offs in cost, complexity and data consistency.

How would you measure whether reliability is improving across the enterprise over a year?

What they are checking: Whether they choose meaningful measures like SLO attainment and incident impact rather than vanity numbers.

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The full job description

As published by Northern Trust.

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. NT is seeking a Principal Site Reliability Architect / Engineer who sets the architectural vision and resiliency strategy for critical platforms across Northern Trust. At Northern Trust, reliability is a design-time concern. This role partners with senior technology leaders, architects, and engineering organizations to define how reliability is designed, measured, and sustained at enterprise scale. It is accountable for reliability architecture outcomes, ensuring that resiliency principles are embedded into system design decisions, lifecycle governance, and engineering standards - rather than relying solely on operational practices after deployment. You will influence long‑term platform evolution by defining reference architectures, architectural guardrails, and maturity models that guide multiple teams and domains toward highly resilient, observable, and operable systems. Architectural leadership in this role does not end at the whiteboard. The Principal Site Reliability Architect is expected to leave the design session able to actively participate in solution creation—validating architectural decisions through targeted implementation, pairing with engineers to shape critical components, or contributing focused code and automation where needed. This hands‑on engagement ensures architectural decisions remain actionable, technically credible, and grounded in real‑world operational realities. This role will be responsible for several key functions that both support and drive improvements to the reliability of Northern Trust’s IT Landscape. What you will do: • Create and own resiliency guidelines • Create, maintain, and continuously improve one or more resiliency guidelines working directly with technology management teams. • Translate resiliency and reliability principles into practical, measurable guidance application teams can implement. • Guide adoption and maturity of resilient software and infrastructure architectures to proactively improve our product and service landscape. • Provide guidance in incident response and root cause analysis • Support root cause analysis sessions by helping teams identify systemic failure modes, resiliency gaps, and contributing factors. • Partner with teams to define preventive measures and guide implementation plans that reduce recurrence. • Feed learnings from incidents back into standards, guidelines, and automation patterns. • Build infrastructure configuration and application management automation • Develop, maintain, and expand automation logic to streamline repetitive operational tasks and improve resiliency. • Build and standardize infrastructure configuration management and application lifecycle management patterns to increase consistency across environments. • Implement and improve monitoring and observability capabilities that help detect and address issues before they impact the business. • Foster a broader community of practice • Help build and sustain an SRE community of practice by collaborating to identify common improvement areas and define standards and governance. • Communicate effectively with stakeholders across different teams and levels within the organization. • Collaborate with product, development, and operations teams to align reliability and resiliency efforts with overarching business goals. Qualifications: • Bachelor’s degree or equivalent practical experience , with 5+ years in site reliability, systems engineering, or infrastructure engineering role. • Experience contributing to and evolving reliable, scalable system architectures , including availability, resiliency, and fault‑tolerance patterns. • Proven ability to translate architectural standards into practical implementations in partnership with engineering and operations teams. • Experience across cloud and on‑prem environments , with an architectural focus on consistency, observability, and operational maturity. • Solid understanding of distributed systems, networking, and modern application architectures. • Hands‑on experience with observability solutions , including contributing to and applying standards for metrics, logging, tracing, dashboards, and alerting. • Proficiency in at least one programming or scripting language (e.g., Python, C#, Java), with the ability to contribute code and guide implementation. • Proficiency with at least one IaC or Configuration Management language (e.g., Terraform, Bicep / ARM, Chef, Puppet, Ansible), with the ability to contribute code and guide implementation. • Experience delivering Infrastructure as Code and application deployment automation through CI/CD pipelines. • Strong communication skills, with the ability to articulate architectural trade‑offs and reliability strategies to diverse stakeholders. Reasonable Accommodation Northern Trust is committed to working with and providing reasonable accommodations to individuals with disabilities. If you need a reasonable accommodation for any part of the employment process, please email our HR Service Center at MyHRHelp@ntrs.com. We hope you ’ re excited about the role and the opportunity to work with us. We value an inclusive workplace and understand flexibility means different things to different people. Apply today and talk to us about your flexible working requirements and together we can achieve greater. Salary Range: $137,400 - 233,600 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). Working with Us As a Northern Trust partner, you will be part of a flexible and collaborative work culture, which has a strong history of financial strength and stability. Movement within the organization is encouraged, senior leaders are accessible, and you can take pride in working for a company committed to an inclusive workplace and assisting the communities we serve. Philanthropy is deeply rooted in Northern Trust’s history and is an essential element of our culture. Employees around the world give their time and talent to work for the greater good of their communities. Reasonable Accommodation Northern Trust is committed to working with and providing adjustments to individuals with health conditions and disabilities. If you need a reasonable accommodation for any part of the employment process, please email our HR Service Center at MyHRHelp@ntrs.com , or alternatively you can discuss your individual requirements with the recruiter you are working with.

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