Yaroslav Koval

Leadsforge - AI lead-generation SaaS that provides prospects from a 550M+ people index and enriches them from 15+ external data providers.

* Built the backend of a new paid feature "Signals", from design to production - company events matched against the people index. Half of the product’s lead-sourcing options (5/10). Idempotent async pipeline with credit reservations, observable and load-tested

Outstaff for SAP

OctoRoute/CaaS (collector as a service) - Kubernetes operator that provisions Kafka-backed OpenTelemetry routing stacks from custom resources, automating collectors, topics, RBAC and mTLS certificates to enable self-service.

* Main developer of the Go secret-manager service, one of the components the operator deploys: 9 merged PRs, 54% of its Go code and 70% of its tests.
* Migrated the service f

Nomi Health - insurance providers aggregator. A system that orchestrates payments and insurance rules to make healthcare more accessible and affordable. It allows clients to bypass traditional US insurance complexities.

* Created and maintained GraphQL/gRPC/REST services (including production issues) with a complex domain driven design.
* Implemented and maintained complex multi-service CI/CD pip

Outstaff to Nomi Health

Wasfaty - national Saudi Arabia eHealth system with HL7 FHIR compliance that simplifies medication dispensing. It synchronizes data between healthcare providers like hospitals and local clinics, so patients can easily and reliably gain access to medical services.

* Implemented secure and reliable business logic across 7 microservices.
* Created high-load distributed microservices with both sync a

Zoadigm - US startup that aggregates data from medical facilities and transforms it to an HL7 FHIR compatible format. It gives an ability to make data structured and unified to build analytics on top of that.

* Integrated ETL pipelines with Airbyte, DBT and Dagster. Maintained their deployment, orchestrated configurations and the full data processing lifecycle.
* Implemented async processing.
* O

CRM system for banking, customer applications and personnel management systems. Worked on REST integrations, migrated frontend to Angular and implemented complex business logic.

* Provided a new frontend approach that increased maintenance of all the projects.
* Implemented integrations with third-party services by REST.
* Implemented complicated financial processes backed by CRM system.
* Owned

* Implemented Employees applications system
* Integrated with OLAP (3D SQL tables)
* Made integration with other CRM system
* Maintaining CRM system for analytics

Nov 2025 · Expires Nov 2027

Jul 2024