Oleg Sishchuk

Software Engineer with 5+ years experience. 4+ years with Golang. Have experience with microservice architecture and monolith architecture. Experience of rewriting a monolith into microservices. Covered all code by unit and integration tests. Always worked in product companies, so it was often necessary to communicate with stakeholders. Works with Israel, USA, Europe teams. 

Building:

System:

CRM system with many integrations (payments, statistic, SIP, etc.) 

Tech-stack:

Golang, Kafka, NSQ, Postgres, MongoDB, Centifuge, Redis, new relic, 

System:

Service for email marketing (email validation)

Tech-stack:

Golang with hexagonal architecture, Kafka, Postgres, MongoDB, ArangoDB, Grafana, Docker, k8s, gRPC, REST

System:

Back-End for browser game with NFT

Tech-stack:

Golang with hexagonal architecture, Kafka, Postgres, MongoDB, ArangoDB, Cassandra, Elasticsearch, Docker, Grafana, k8s, gPRC, REST

System:

Mobile Application for self-motivation (pet-project)

Tech-stack:

Flutter for mobile application, Golang, Kafka, Postgres, MongoDB, memory cache, Docker, Grafana, Kowl, k8s, gRPC, REST, Pub-Sub