Senior Software Engineer - C#​/.Net

This role is four days onsite at our Seneca One Buffalo, NY location, with the flexibility to work from home one day per week Overview:
Responsible for advanced software engineering and technical ownership of applications and services supporting critical banking capabilities. Designs, develops, integrates, deploys, and supports secure and resilient solutions throughout the Software Development Lifecycle (SDLC). Independently analyzes complex business and technical requirements, leads implementation decisions, coordinates dependencies across teams and vendors, and ensures solutions meet the Bank’s architecture, cybersecurity, risk, operational, and regulatory standards.

Contributes to platform modernization, production stability, engineering automation, responsible use of approved AI-assisted engineering tools, and the technical development of other team members.

Primary Responsibilities:

Provide technical ownership for applications and services throughout design, development, testing, deployment, production support, modernization, and retirement.

Design and implement secure, resilient, maintainable solutions across application, API, data, batch and file-processing, and integration layers.

Lead technical analysis of complex business requirements, system dependencies, operational constraints, and nonfunctional requirements such as availability, recovery, performance, security, and supportability.

Author organized, efficient, secure, and production-quality source code at an advanced level, applying appropriate data structures, algorithms, design patterns, and engineering standards.

Use source code management, automated testing, continuous integration and delivery, code-quality tooling, and deployment automation to manage changes and improve delivery reliability.

Review code and technical designs, provide constructive feedback, establish engineering standards, mentor team members, and help resolve complex implementation and support issues.

Collaborate with architecture, infrastructure, cloud, network, cybersecurity, database, operations, business, and vendor teams to manage dependencies and deliver end-to-end solutions.

Support cloud and platform modernization initiatives, including application migration, dependency remediation, technical-debt reduction, and retirement of legacy components.

Develop and maintain monitoring, alerting, operational documentation, implementation plans, support procedures, and production-readiness evidence.

Troubleshoot complex application and integration issues across environments; participate in incident response, root-cause analysis, corrective actions, disaster recovery, and resiliency improvements.

Prepare and maintain technical designs, architecture flows, interface specifications, implementation plans, and support documentation, and clearly communicate recommendations, tradeoffs, risks, estimates, and dependencies.

Ensure releases comply with SDLC, change-management, cybersecurity, audit, and regulatory requirements, including timely remediation or escalation of identified risks.

Use approved AI-assisted engineering tools to support software design, development, testing, documentation, code review, troubleshooting, and operational analysis while independently validating outputs for accuracy, security, maintainability, licensing, and compliance with Bank standards.

Evaluate emerging engineering capabilities, including generative AI, to identify appropriate opportunities to improve developer productivity, software quality, automation, and operational support while protecting confidential information and maintaining human oversight.

Understand and adhere to the Company’s risk and regulatory standards, policies and controls in accordance with the Company’s Risk Appetite.…