01 / UNDERSTAND
Trace the system before changing it.
PERSONAL / TECHNOLOGY IDENTITY
SESSION 01
JAROSŁAW PROCHAL.
WHITE EDITION
prochal.pl
TECH LEAD / SYSTEMS ARCHITECT
SYSTEM ARCHITECTURE DIGITAL IDENTITY PLATFORM ENGINEERING DISTRIBUTED SYSTEMS SECURITY
> initializing identity...
> system online
> whoami
Jarosław Prochal
Tech Lead / Systems Architect
LOCAL TIME
01 / IDENTITY
OBSERVE · UNDERSTAND · CREATE
WHO AM I?
JAROSŁAW
PROCHAL
Complex systems.
Clear architecture.
Verifiable behavior.
I design, integrate and troubleshoot complex systems across software, infrastructure, identity and security.
I work across system boundaries — from protocols and trust to platforms, distributed communication and production behavior.
ARCHITECTURE + ENGINEERING + DELIVERY
01CLARITY
Reduce noise. Find the actual problem.
02CURIOSITY
Look closer. Ask better questions.
03CRAFT
Build precisely. Improve continuously.
SYSTEM LAYERS / 07
I WORK ACROSS
I WORK ACROSS
THE STACK.
Not one isolated layer. The behavior of the complete system.
I prefer architecture that can be implemented, observed and verified in the real system.
02 / CAPABILITY MATRIX
SYSTEM DOMAINS / INTERACTIVE
CAPABILITY
MATRIX.
Six connected engineering domains. Select one to inspect its technologies, concerns and system relationships.
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- CORE TECHNOLOGIES / CONCEPTS
- DISTRIBUTED SYSTEMS / APIs / INTEGRATION ARCHITECTURE / REVERSE PROXIES / SERVICE COMMUNICATION
- SYSTEM CONCERNS
- SYSTEM DESIGN / HIGH AVAILABILITY / FAILURE MODES / DEPENDENCIES / SERVICE BOUNDARIES / PRODUCTION BEHAVIOR
- RELATED DOMAINS
- DISTRIBUTED SYSTEMS / PLATFORM ENGINEERING / SECURITY
-
- CORE TECHNOLOGIES
- KEYCLOAK / OAUTH 2.0 / OPENID CONNECT / SAML 2.0 / PKI / X.509 / mTLS / JWS / JWE
- SYSTEM CONCERNS
- AUTHENTICATION / AUTHORIZATION / FEDERATION / TRUST BOUNDARIES / CERTIFICATE LIFECYCLE / KEY MANAGEMENT / PROTOCOL INTEGRATION
- RELATED DOMAINS
- SYSTEM ARCHITECTURE / SECURITY / PLATFORM ENGINEERING
-
- CORE TECHNOLOGIES
- KUBERNETES / DOCKER / HELM / NGINX / LINUX / CI/CD / CONFIGURATION MANAGEMENT
- SYSTEM CONCERNS
- ENVIRONMENT ARCHITECTURE / SCALABILITY / RESILIENCE / DEPLOYMENT / CONFIGURATION / OBSERVABILITY / OPERATIONAL STABILITY
- RELATED DOMAINS
- SYSTEM ARCHITECTURE / DISTRIBUTED SYSTEMS / DELIVERY / SECURITY
-
- CORE TECHNOLOGIES
- KAFKA / APIs / EVENT-DRIVEN ARCHITECTURE / ASYNCHRONOUS PROCESSING / SERVICE INTEGRATION
- SYSTEM CONCERNS
- STATE / ORDERING / FAILURE HANDLING / RESILIENCE / RETRIES / IDEMPOTENCY / CONSISTENCY / INTEGRATION
- RELATED DOMAINS
- ARCHITECTURE / PLATFORM / DELIVERY
-
- CORE TECHNOLOGIES
- SECURE SDLC / TLS / mTLS / AUTHENTICATION / AUTHORIZATION / PKI
- SYSTEM CONCERNS
- PENTEST REMEDIATION / SECURITY BOUNDARIES / ATTACK SURFACE / VALIDATION / HARDENING / TRUST / SECURE INTEGRATION
- RELATED DOMAINS
- DIGITAL IDENTITY / SYSTEM ARCHITECTURE / PLATFORM ENGINEERING
-
- CORE TECHNOLOGIES
- CI/CD / RELEASE ENGINEERING / OBSERVABILITY / AUTOMATION / MIGRATION
- SYSTEM CONCERNS
- ROOT CAUSE ANALYSIS / ENVIRONMENT PARITY / DEBUGGING / PRODUCTION INCIDENTS / MIGRATION / FAILURE ANALYSIS
- TECHNICAL LEADERSHIP
- ARCHITECTURE DECISIONS / ENGINEERING STANDARDS / CROSS-SYSTEM REASONING / DELIVERY OWNERSHIP / TECHNICAL PROBLEM SOLVING
- RELATED DOMAINS
- SYSTEM ARCHITECTURE / PLATFORM ENGINEERING / DISTRIBUTED SYSTEMS
The graph connects six engineering domains with their related technologies and system concerns. The same relationships are available in the capability descriptions.
03 / HOW I WORK
ENGINEERING PRINCIPLES / APPLIED
02 / DESIGN
Make boundaries, dependencies and failure modes explicit.
03 / VERIFY
Prefer evidence over assumptions.
04 / DELIVER
Architecture matters only when it works in the real environment.
04 / CONTACT
DIRECT CHANNELS / OPEN
CONTACT / 01
JAROSŁAW PROCHAL
EMAIL
jaroslaw@prochal.pl
PHONE
+48 791 274 780
LINKEDIN
linkedin.com/in/jaroslawprochal