Adrian Kuczyński

Security Developer · Software Architect · .NET Engineer

Back to About

Experienced .NET Engineer & Software Architect with 11+ years in fintech and banking. Currently working as a Senior Security Developer, designing AppSec tooling, SSDLC pipelines, and AI-automated security reviews. Deep expertise in C#, .NET 4–10, ASP.NET Core, DDD, CQRS, Event Sourcing, Hexagonal & Clean Architecture, microservices, Azure, AWS EKS, Docker, and Terraform. Expanding in cybersecurity, AI agents, and leadership. Proven track record as team lead and Software Architect at PKO Bank Polski.

Skills

Security
  • AppSec
  • SSDLC
  • OWASP
  • OAuth 2.0
  • OIDC
  • Vault
  • Apiiro
  • GitHub PR Guards
Backend & Architecture
  • C# / .NET 4–10
  • ASP.NET Core
  • EF Core
  • SQL Server
  • MongoDB
  • DDD
  • CQRS
  • Event Sourcing
  • Microservices
  • Clean Architecture
  • Hexagonal Architecture
  • REST / gRPC / SOAP
Cloud & DevOps
  • Azure
  • AWS EKS
  • Google Cloud
  • Docker
  • Terraform
  • Azure DevOps
  • GitLab CI
  • GitHub Actions
Frontend & Other
  • Angular
  • TypeScript
  • Python
  • AI Agents / LLM APIs
  • OData
  • JIRA / Confluence
  • SCRUM

Languages

Polish Native
English C1 — Professional

Education

Gdańsk University of Technology

B.Sc. Information Technology · 2011–2015

Domain Drivers

Advanced DDD Training · Sep 2024

Certifications

  • ◆ Software Architecture: Domain-Driven Design
  • ◆ Microservices: Design Patterns
  • ◆ Designing Next-Gen Architecture
  • ◆ Management Skills: Essentials for the New Manager
  • ◆ Skuteczny menedżer w organizacji

Experience

Senior Security Developer

Confidential — World Leader in Internet Connectivity & Data Centers

Oct 2025 — Present Remote

Designing and implementing software for the AppSec department. Building SSDLC tooling, AI-automated security review pipelines, Vault and custom secret management integrations, and software hardening practices. Integrating GitHub PR guards and Apiiro into the secure development process. Working across .NET, Python, Docker, and Terraform on AWS EKS infrastructure.

  • .NET
  • Python
  • Docker
  • AWS EKS
  • Terraform
  • Vault
  • Apiiro
  • AI Agents
  • GitHub Security

Software Architect

PKO Bank Polski

Oct 2023 — Sep 2025 · 2 years Poland

Designing scalable, event-driven systems for one of Poland's largest banks. Focused on DDD, Hexagonal Architecture, CQRS, and Event Sourcing to support complex fintech and banking domains. Driving architectural decisions across distributed teams.

  • C# .NET 6–8
  • ASP.NET Core
  • DDD
  • CQRS
  • Event Sourcing
  • Microservices
  • Azure
  • Azure DevOps

Senior Full-Stack .NET Developer & Architect

LS Retail — POS and Business Management Software

Sep 2020 — Sep 2023 · 3 years Gdańsk, Poland

Designed and built a new back-office system for partner and client management. Implemented an SSO authentication service shared across multiple products. Created data replication pipelines from Microsoft BC365 ERP and CRM.

  • .NET Core
  • Angular
  • TypeScript
  • MSSQL
  • Azure
  • Azure DevOps
  • MS BC365

Senior Full-Stack .NET Developer

mBank S.A.

Jan 2020 — Sep 2020 · 9 months Gdańsk / Warsaw
  • .NET Core
  • C#
  • MSSQL

Senior Full-Stack .NET Developer

Nordea

Jun 2019 — Jan 2020 · 8 months Gdańsk, Poland

Developed a new full-stack banking application (.NET Core + Angular 7) and maintained a legacy ASP.NET MVC portal. Handled database design, data migration, and Windows Server deployments in a SCRUM team.

  • .NET Core 2
  • Angular 7
  • C#
  • ASP.NET MVC
  • MSSQL
  • Windows Server
  • SCRUM

Senior Full-Stack .NET Developer

TF Bank AB

Jun 2018 — Jun 2019 · 1 year Gdańsk, Poland

Designed and developed a credit decision system with integrations to external bureaus (BIK, CRIF, Bisnode). Implemented Windows Workflow Foundation activities for credit decision flows and built microservices using OData over MongoDB and SQL.

  • .NET Core 2
  • .NET 4.6+
  • C#
  • Angular
  • MongoDB
  • MSSQL
  • Microservices
  • OData
  • REST
  • SOAP

.NET Developer & Team Leader

Intel Corporation (Contractor)

Apr 2017 — May 2018 · 1 yr 2 mo Gdańsk, Poland

Led a team of 4–7 developers building audio hardware test automation tools. Responsibilities included mentoring, sprint planning, task decomposition, code reviews, and SCRUM facilitation.

  • C# .NET
  • Python (Squish)
  • Windows UI Automation
  • Git
  • JIRA
  • SCRUM

Junior C# Developer

Intel Corporation (Contractor)

Sep 2015 — Mar 2017 · 1 yr 7 mo Gdańsk, Poland

Writing integration tests and API libraries for server platforms and firmware in an internal C# automation framework.

  • C#
  • XML
  • Git
  • JIRA

Intern / Junior .NET Developer

IHS Markit

Jul 2014 — Sep 2015 · 1 yr 3 mo Gdańsk, Poland

Designed and implemented new software features in .NET. Programming in C#, PowerShell, and T-SQL. Testing, administration, debugging, and Windows Server configuration.

  • C#
  • PowerShell
  • T-SQL
  • MSSQL
  • Visual Studio
  • Windows Server

Microsoft Student Partner

Microsoft

May 2013 — Mar 2015 · ~2 years Gdańsk University of Technology

Sharing knowledge on .NET and Windows Phone development with students. Organized "IT Academic Day" conferences and workshops at universities and high schools across the region.

  • C#
  • Windows Phone
  • Azure
  • Public Speaking