M

M&T Bank

Full-service banking with mortgage, deposits, loans

Lead Calypso Solutions Developer

Full-Time
$116.4k - $194k/yr
Senior
Bachelor's, Associate's
Buffalo, NY, USA
HybridFour days onsite per week; work from home one day per week.
IT OperationsEnterprise Applications

About the job

Requirements
  • An associate’s degree and a minimum of 7 years of solutions development and/or relevant enterprise technology experience; or a bachelor’s degree and a minimum of 5 years of such experience; or, in lieu of a degree, a combined minimum of 9 years of education and/or work experience, including at least 5 years of solutions development and/or relevant enterprise technology experience.
  • Expert proficiency in a minimum of one relevant platform.
Responsibilities
  • Design, oversee, configure, and develop advanced Calypso solutions and multisystem integrations across Front Office, Middle Office, Back Office, Collateral, Risk, Accounting, Settlements, and Reporting functions.
  • Optimize workflows, platform functionality, and system efficiency while reviewing and approving solutions produced by other team members.
  • Serve as the technical and thought leader for the Calypso platform; provide hands-on guidance, establish development and configuration standards, and mentor solution developers, software engineers, analysts, and support team members.
  • Facilitate sessions with business and technology stakeholders to identify challenges and define epics, features, user stories, functional requirements, and technical requirements.
  • Apply capital markets and Calypso expertise to ensure strategic initiatives align with business objectives.
  • Perform fit-to-standard and gap analysis between out-of-the-box Calypso capabilities and business requirements; recommend configuration-first solutions and develop controlled customizations or extensions when standard platform capabilities do not satisfy approved requirements.
  • Translate business requirements into solution designs, technical specifications, configuration designs, interface mappings, implementation plans, test scenarios, and operational support documentation.
  • Design and develop Calypso configurations and extensions supporting trade capture, trade lifecycle processing, workflows, reference data, static data, market data, pricing, position management, collateral processing, confirmations, settlements, accounting, scheduled tasks, interfaces, and reporting.
  • Drive Calypso integration efforts by designing secure and configurable API, messaging, file-based, and service-oriented solutions.
  • Optimize data exchange with trading venues, market data providers, collateral platforms, payment and settlement services, accounting systems, regulatory platforms, and enterprise data repositories.
  • Lead platform upgrade, migration, cloud, infrastructure, and modernization initiatives; assess compatibility, remediation needs, technical debt, deployment impacts, and implementation risks across Calypso and dependent systems.
  • Drive advanced Calypso system management, optimization, and performance monitoring; design strategies supporting peak performance, scalability, resiliency, recoverability, and operational efficiency across environments.
  • Develop the design and strategy for the Calypso system lifecycle, ensuring stability, integrity, supportability, and service health.
  • Coordinate lifecycle plans across technology and present strategy, timelines, dependencies, risks, and budget considerations to senior leaders.
  • Lead comprehensive unit, integration, system integration, regression, user acceptance, performance, resiliency, and production validation activities.
  • Define acceptance criteria, create or review test cases, support defect triage, and ensure traceability from requirements through implementation.
  • Advance incident and problem management strategy for Calypso, ensuring rapid response and resolution for critical platform, workflow, data, scheduled-task, and integration issues.
  • Serve as an escalation point, lead root-cause analysis, and implement sustainable corrective and preventive actions.
  • Provide senior-level production support and technical oversight for complex Calypso incidents, including analysis of application logs, interfaces, messaging flows, batch processes, reports, market data, trade processing, and environmental dependencies.
  • Define and deliver continuous improvement strategies, proactive issue resolution, automation, observability, and platform optimization to improve performance, resiliency, reliability, scalability, supportability, and long-term efficiency.
  • Create and maintain a communication and documentation framework for solution designs, architecture decisions, configuration inventories, interface specifications, deployment procedures, support runbooks, test evidence, and technical recommendations.
  • Communicate complex Calypso solutions clearly across business and technology teams to promote understanding, adoption, operational readiness, and effective support.
  • Lead compliance, security, data protection, and risk mitigation activities for Calypso solutions; ensure technical changes meet regulatory, business, architecture, cybersecurity, data-handling, segregation-of-duties, and audit requirements.
  • Support the creation and execution of comprehensive technology solution-design strategies by evaluating new Calypso capabilities and reusable patterns, gathering peer and technical-leadership input, and presenting recommendations to appropriate governance bodies.
  • Model governance best practices and define and implement quality standards for Calypso configuration, custom code, integrations, testing, documentation, release management, and production support.
  • Design and support advanced analytics and reporting solutions within or connected to Calypso.
  • Automate controlled data aggregation and delivery processes and ensure outputs align with approved business and regulatory objectives.
  • Work effectively with Nasdaq, implementation partners, vendors, infrastructure teams, enterprise architects, cybersecurity, data teams, and application owners to resolve product issues and deliver integrated solutions.
  • Understand and adhere to the Company’s risk and regulatory standards, policies, and controls in accordance with the Company’s Risk Appetite.
  • Identify risk-related issues requiring escalation to management.
  • Promote an environment that supports a culture of belonging and reflects the M&T Bank brand.
  • Maintain M&T internal control standards, including timely implementation of internal and external audit points and issues raised by external regulators, as applicable.
  • Complete other related duties as assigned.
Desired Qualifications
  • Expert proficiency with the Nasdaq Calypso fintech platform, including hands-on experience in Calypso solution design, configuration, development, integration, testing, deployment, or production support.
  • Experience supporting capital markets technology and understanding trade lifecycle processing.
  • Experience translating business requirements into functional and technical Calypso solutions.
  • Experience troubleshooting complex application, integration, workflow, data, and production issues.
  • Experience with one or more Calypso functional areas, including FX, fixed income, interest-rate products, collateral management, margin processing, settlements, confirmations, accounting, risk, or regulatory reporting.
  • Hands-on development experience with Java and enterprise application design patterns.
  • Experience with SQL and relational database platforms such as Oracle or PostgreSQL.
  • Experience with REST or SOAP services, XML, JSON, messaging, and file-based enterprise integrations.
  • Experience with Linux or UNIX, shell scripting, application logs, batch processing, and performance troubleshooting.
  • Experience with Git-based source control, automated builds, CI/CD pipelines, and controlled deployment processes.
  • Experience with Calypso upgrades, migrations, cloud-hosted environments, or platform modernization.

About the company

M&T Bank is a full-service financial institution that offers a wide range of banking solutions for individuals, small businesses, and larger enterprises. Its products include personal and business checking accounts, mortgage assistance programs, loans, deposits, investment products, and mobile banking. The bank serves mainly customers in the Northeastern and Mid-Atlantic United States and emphasizes community engagement and customer-focused service. It generates revenue from interest income, fees, and service charges tied to loans, deposits, and other financial products. The company’s recent merger with United Bank, N.A. expands its footprint and enhances its service offerings. The goal is to provide accessible financial services to communities while growing its market presence and deepening local connections.

Company Size

10,001+

Company Stage

IPO

Headquarters

Buffalo, New York

Founded

1993

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Simplify's Take

What believers are saying

  • On July 15, 2026, M&T reported record quarterly EPS of $5.32.
  • Average loans rose $3.0 billion in Q2 2026, led by commercial lending and CRE.
  • M&T repurchased $465 million of stock in Q2 2026 while CET1 stayed 10.19%.

What critics are saying

  • Average deposits fell $0.7 billion in Q2 2026, tightening funding and forcing pricier borrowings.
  • Commercial real estate balances reached $24.5 billion; 2027 refinancing stress hits credit costs and earnings.
  • A severe CRE downturn forces reserve spikes, buyback cuts, and capital-trapping regulation through 2027.

What makes M&T Bank unique

  • M&T Bank’s Q2 2026 balance sheet paired $168.9 billion deposits with $141.4 billion loans.
  • Ninety percent of C&I businesses grew quarter-over-quarter in Q2 2026, proving deep relationship banking.
  • The People’s United merger expanded M&T’s Northeast-Atlantic branch and deposit footprint after 2022.

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Benefits

401(k) Company Match

401(k) Retirement Plan

Flexible Work Hours

Hybrid Work Options

Paid Vacation

Paid Holidays

Health Insurance

Dental Insurance

Vision Insurance

Life Insurance

Disability Insurance

Health Savings Account/Flexible Spending Account

Growth & Insights and Company News

Headcount

6 month growth

10%

1 year growth

11%

2 year growth

11%
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