Sr Software Engineer B2 will design and implement scalable enterprise applications using contemporary Java and Python stacks with microservices patterns on GCP. The role focuses on building resilient Kafka based integrations optimizing SQL data access and enhancing Spring Boot services to support critical business platforms in a hybrid work model.
Responsibilities
DISTRIBUTED SYSTEMS DEEP
Designs systems that are correct under partial failure and knows the failure modes of event driven choreography including out of order delivery duplicate events poison pills and consumer group rebalance.
Has deep experience with Kafka or equivalent durable event logs including topic partitioning strategy compacted topics consumer group semantics exactly once producers transactional producers and consumers and tiered storage trade offs.
Designs two bus architectures with a low latency real time bus such as NATS JetStream alongside a durable ordered log connected through a transactional outbox.
Has experience with backpressure flow control and throughput tuning in event driven pipelines.
Defines and enforces canonical event contracts including schemas versioning and anti corruption layers at partner boundaries.
EVENT SOURCING CQRS AND DOMAIN PATTERNS EXPERT
Designs event sourced aggregates from scratch using the event stream as the source of truth fold over stream for current state snapshot strategies and schema evolution.
Has a deep understanding of aggregates as write side consistency boundaries and ensures commands pass through aggregates.
Designs CQRS read models that consume from event logs with projection rebuild catch up subscriptions and consistency guarantees.
Designs and implements saga patterns for irreversible multi step commits such as payment to policy number to issued fact with idempotency keys compensation registration and retry semantics.
Defines optimistic concurrency strategies at the aggregate level using version checks and rejection handling f