- Architected and built core products for voice recognition and anti spoofing- Distributed data processing pipelines in Airflow on spot instances- Manage Kubernetes cluster and CI/CD pipelines. Terraformed AWS cloud and migrated it to GCP- Managed client side remote team in UA- Monitoring metrics and dashboards in grafana

- Real time price feed integration and broadcasting into other micro services- Refactored billing system- Optimized data backup. Improvements to matching engine- Implemented open telemetry for key operations- Took part in BDD testing for complex business scenarios. System design documentation- Interacting with distributed UK/USA/France dev team- Mentoring junior devs and QA

- Used CDC (change data capture) to replicate state from closed source legacy system. Migrated 4B data points into time series db.- Architecting solutions according to HIPAA (identifiable medical data) guidelines- Wrote 100+ CI/CD tests for async data processing and aggregation- Integration of Python algorithmic micro services- Managing/tuning Kafka and Timescale. WAL backups and physical replication- Working with remote mobile app team from UA- Passed Kafka certification exam- Business and operational metrics dashboards monitoring

- Created event driven market making software for crypto options at Deribit- Complex option position accumulation using market making- Used RxJS to manage event flows and trade triggers- Price feeds aggregation and storage

- SQL data modeling for billing and complex relationships that are history dependent- Integrating custom packaging and delivery algorithms- Responsible for full text search and billing micro services- Devops in pre K8 era

- Design/implementation of billing, retention, affiliate, CRM solutions.- System design based on requirements from business stakeholders from UK- Integration 10+ server/client side systems with Playtech- Close interaction with data team- Administration of GCP/AWS