The Mainframe & SWIFT Application Support Specialist is responsible for the end-to-end support, monitoring, and incident management of our Mainframe accounting processes and SWIFT messaging flows. The role ensures operational stability, data accuracy, and timely processing of financial transactions, supporting business-critical fund accounting and custody operations.

Who we are looking for
We are seeking an experienced Application Support Specialist with strong expertise in SWIFT-integrated, fund accounting, custody operations and mainframe ecosystems to support and modernize mission-critical financial applications. The team supports high-volume, highly secure financial systems operating across SWIFT secure zones, cloud-native platforms (AWS/Azure), and legacy mainframe technologies (e.g., IBM Z). These platforms are undergoing transformation to hybrid architectures, combining mainframe stability with cloud scalability and automation. The ideal candidate will play a key role in driving DevSecOps/SRE practices across heterogeneous environments, ensuring secure, resilient, and automated delivery pipelines.

Why this role is key to us
Our technology function, Global Technology Services (GTS), underpins critical financial operations including payments, messaging, and settlement systems integrated with SWIFT networks.

This role is central to:

Maintaining the security and integrity of SWIFT-connected applications, which operate within tightly controlled secure network zones and access models

Enabling cloud transformation of legacy mainframe workloads, improving agility, observability, and resilience





Strengthening compliance with internal controls, external audits, and regulatory requirements tied to financial messaging and data protection

You will contribute to the firm’s broader transformation by bridging traditional mainframe operations with modern cloud-native DevSecOps/SRE practices.

What you will be responsible for
Key Responsibilities

SWIFT Platform Application Support

Mainframe & Legacy Integration

DevSecOps & Automation

Observability & Resilience

Collaboration & Delivery

Education & Preferred Qualifications
Qualifications

Bachelor’s degree

5+ years’ experience as a Application Support Engineer in financial services

Strong knowledge of mainframe systems (IBM Z, Tandem/NonStop, or similar)

Good knowledge of SWIFT-connected platforms and secure environments

Experience with cloud platforms (AWS and/or Azure)

Experience managing hybrid architectures (mainframe + distributed + cloud)

Technical Skills

Expertise in CICS, COBOL, DB2 and JCL

Monitoring and observability tools such as Prometheus, Grafana, Splunk, or AppDynamics

Scripting and automation using Python, Shell, or similar

What we offer




This is an chance to work on business-critical payment and financial platforms at the intersection of SWIFT, Mainframe Accounting and cloud transformation.

Salary Range:

$91,000 - $140,500 Annual

The range quoted above applies to the role in the location specified. If the candidate would ultimately work outside of the location above, the applicable range could differ.

About State Street
Across the globe, institutional investors rely on us to help them manage risk, respond to challenges, and drive performance and profitability. We keep our clients at the heart of everything we do, and smart, engaged employees are essential to our continued success.

We are committed to fostering an environment where every employee feels valued and empowered to reach their full potential. As an essential partner in our shared success, you’ll benefit from inclusive development opportunities, flexible work-life support, paid volunteer days, and vibrant employee networks that keep you connected to what matters most. Join us in shaping the future.

As an Equal Opportunity Employer, we consider all qualified applicants for all positions without regard to race, creed, color, religion, national origin, ancestry, ethnicity, age, disability, genetic information, sex, sexual orientation, gender identity or expression, citizenship, marital status, domestic partnership or civil union status, familial status, military and veteran status, and other characteristics protected by applicable law.

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📌 Application Support Engineer – SWIFT & Mainframe, Assistant Vice President (Ontario)
🏢 State Street
📍 Ontario