Senior Security Software Engineer – .NET, Assistant Vice President

State Street

Senior Software Engineer developing cybersecurity and IT solutions for banking, leveraging .NET and Azure technologies. Focused on maintaining and innovating platform security solutions.

Posted 7/21/2026full-timeKrakow • 🇵🇱 PolandSenior💰 PLN 182,004 per yearWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in Modern C# and .NET development, with a strong focus on building and maintaining complex distributed systems. Proficient in cybersecurity concepts, particularly Identity & Access Management, and skilled in utilizing SDLC tooling for efficient software delivery.

Highest-signal resume keywords

Modern C# DevelopmentASP.Net CoreRelational Databases (MSSQL)Cybersecurity Concepts (IAM)APIs

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

Modern C#ASP.Net CoreBlazor ApplicationsRelational DatabasesCybersecurity ConceptsPerformance/Scale ConceptsDistributed SystemsRobust Code WritingAPIsSDLC Tooling

Tools & Technologies

GITCI/CD PipelinesJiraWindows ServerActive Directory

Industry Keywords

CybersecurityIdentity & Access ManagementSecret ManagementAsynchronous CodeBatch ProcessingLockingConcurrency

Tech Stack

Tools & technologies

ASP.NETCyber SecurityDistributed Systems.NETSDLC

About the role

Key responsibilities & impact

Join Platform Security Solutions organisation at Technology Platform Engineering & Operations division
Bolster Self-Service, Scanning and Platform Integrations function
Maintain and expand existing, as well as develop new products from scratch and operationalize them at enterprise scale
Work with multiple internally developed distributed systems, portals and data warehouses
Shape the future of cybersecurity and IT solutions

Requirements

What you’ll need

Modern C# and .NET (e.g. 8/9/10) development
Experience with Blazor applications or at least ASP.Net Core
Working with Relational Databases (ideally MSSQL)
Good understanding of cybersecurity concepts including Identity & Access Management (IAM) and least privilege, secret management
Good understanding of Performance/Scale concepts including asynchronous code, batch processing, locking and concurrency
Experience designing, building, maintaining and complex distributed systems
Preference for and skill writing robust and correct code
Good understanding and proficiency working with SDLC tooling such as GIT, CI/CD pipelines, Jira
Experience with Windows Server, Active Directory
Strong experience on working with APIs

Benefits

Comp & perks

Permanent contract from day one
Additional holidays (Birthday Day Off, 3rd and 5th year anniversary Day Off)
Gold Medical Package for employees and their families (partner and children)
Premium life insurance package and private pension plan
Wide range of soft skills training, technical workshops, language classes and development programs
Opportunities to volunteer your time to company-driven initiatives, employee networks or organizations of your choice
Variety of well-being programs
Additional benefits available depending on the seniority of the role