Skill-Profil

Event Sourcing

Event store, projections, snapshots, CQRS, temporal queries

Architecture & System Design Event-Driven Architecture

Rollen

wo dieser Skill vorkommt

Stufen

strukturierter Entwicklungspfad

Pflichtanforderungen

die anderen 2 optional

Architecture & System Design

Event-Driven Architecture

17.3.2026

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Was wird auf jedem Level erwartet

Die Tabelle zeigt, wie die Tiefe von Junior bis Principal wächst.

Rolle	Pflicht	Beschreibung
Blockchain Developer		Understands basic Event Sourcing architectural concepts. Follows team architectural decisions. Understands core patterns.

Rolle	Pflicht	Beschreibung
Blockchain Developer		Applies Event Sourcing when designing components. Understands trade-offs. Participates in architectural discussions.

Rolle	Pflicht	Beschreibung
Blockchain Developer	Pflicht	Designs event-sourced ledger systems where on-chain transactions serve as the immutable event log. Makes ADRs on event schema versioning for smart contract state reconstruction. Evaluates CQRS projections for indexing blockchain events into queryable read models.
Solutions Architect	Pflicht	Designs event-sourced aggregates with snapshotting and event upcasting strategies. Makes ADRs on event store selection (EventStoreDB, Marten, Axon) and partitioning schemes. Evaluates consistency guarantees across projections and process managers.

Rolle	Pflicht	Beschreibung
Blockchain Developer	Pflicht	Defines event sourcing strategy for decentralized applications combining off-chain event stores with on-chain finality. Establishes guidelines for event replay, chain reorganization handling, and cross-chain event correlation. Conducts architecture reviews of event-driven indexer and subgraph designs.
Solutions Architect	Pflicht	Defines product-wide event sourcing strategy including event catalog governance and schema registry integration. Establishes architecture guidelines for saga/choreography patterns and eventual consistency SLAs. Conducts reviews of event-driven systems ensuring idempotency, ordering guarantees, and replay safety.

Rolle	Pflicht	Beschreibung
Blockchain Developer	Pflicht	Defines organizational architectural strategy. Designs reference architectures. Establishes architecture governance.
Solutions Architect	Pflicht	Defines the organization's architectural strategy. Designs reference architectures. Establishes architecture governance.

Junior 1 Anforderungen

Blockchain Developer

Understands basic Event Sourcing architectural concepts. Follows team architectural decisions. Understands core patterns.

Middle 1 Anforderungen

Blockchain Developer

Applies Event Sourcing when designing components. Understands trade-offs. Participates in architectural discussions.

Senior 2 Anforderungen

Blockchain Developer
Pflicht

Designs event-sourced ledger systems where on-chain transactions serve as the immutable event log. Makes ADRs on event schema versioning for smart contract state reconstruction. Evaluates CQRS projections for indexing blockchain events into queryable read models.
Solutions Architect
Pflicht

Designs event-sourced aggregates with snapshotting and event upcasting strategies. Makes ADRs on event store selection (EventStoreDB, Marten, Axon) and partitioning schemes. Evaluates consistency guarantees across projections and process managers.

Lead / Staff 2 Anforderungen

Blockchain Developer
Pflicht

Defines event sourcing strategy for decentralized applications combining off-chain event stores with on-chain finality. Establishes guidelines for event replay, chain reorganization handling, and cross-chain event correlation. Conducts architecture reviews of event-driven indexer and subgraph designs.
Solutions Architect
Pflicht

Defines product-wide event sourcing strategy including event catalog governance and schema registry integration. Establishes architecture guidelines for saga/choreography patterns and eventual consistency SLAs. Conducts reviews of event-driven systems ensuring idempotency, ordering guarantees, and replay safety.

Principal 2 Anforderungen

Blockchain Developer
Pflicht

Defines organizational architectural strategy. Designs reference architectures. Establishes architecture governance.
Solutions Architect
Pflicht

Defines the organization's architectural strategy. Designs reference architectures. Establishes architecture governance.

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