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Kiarash Khoshvaght

@kiarashkhoshvaght

Lead backend engineer with 7+ years building high-throughput financial microservices and Kafka-based distributed systems.

Iran

Message

What I'm looking for

I’m looking for a senior/lead backend role where I can design high-throughput distributed systems in Java and Kafka, own cloud-native architecture, and lead teams through measurable reliability, performance, and security improvements.

I’m a Senior/Lead Backend Engineer specializing in high-throughput financial systems, distributed microservices, and cloud-native architectures. At Sadad Information Corporation, I led the architecture and development of reactive Java 21/Spring Boot 3 services using CQRS, Event Sourcing, and Saga Orchestration to power distributed financial transactions with compensation mechanisms.

I migrated 20+ microservices from Docker to Kubernetes (Helm/Manifests) with CI/CD pipelines, enabling on-demand horizontal scaling and zero-downtime deployments via health checks and canary/blue-green strategies. I improved system throughput by 64% with Spring Cloud Gateway (Reactive) and database query optimization, built Kafka-driven asynchronous processing, hardened security with OAuth2/Keycloak, and delivered an end-to-end observability stack (Prometheus, Grafana, Loki, Zipkin, OpenTelemetry). I also deployed ML-based recommender services from Python to Java microservices, introduced Flowable and Drools for BPM logic, and mentored 6 junior developers while leading the backend team as acting CTO/Tech Lead.

Experience

Work history, roles, and key accomplishments

Current

Senior/Lead Backend Engineer

Current

Sadad Information Corporation

Jan 2023 - Present (3 years 4 months)

Led architecture and development of high-throughput financial microservices using Java and Spring Boot, including CQRS, Event Sourcing, and saga orchestration for distributed transactions. Migrated 20+ services to Kubernetes, improved throughput by 64% via Spring Cloud Gateway and DB optimization, and delivered zero-downtime deployments with canary/blue-green strategies.

Java 21+Spring Boot Kafka CQRS Event Sourcing Kubernetes Helm

Founder & Full Stack Dev

StockSurf

Sep 2020 - Jan 2023 (2 years 4 months)

Designed and implemented a low-latency trading backend with order matching, settlement, and automated trading strategy support. Built an exchange platform backend and developed a market-making robot.

Java Spring Boot Trading Systems Matching Exchange Docker API Gateway MySQL

Software Engineer

Parham Co.

Mar 2019 - Jun 2020 (1 year 3 months)

Maintained and refactored multiple apps (quiz game and VOD), fixing bugs and adding new functionality. Developed a download manager and a monitoring/checking app, and built an advertisement Android SDK; also developed React Native apps.

Java Android Android SDK React Native Refactoring Download Manager Mobile Application Development

Android Developer

Carpino

Mar 2018 - Mar 2019 (1 year)

Redesigned and improved a passenger app, enhancing GPS behavior and map features and adding new capabilities. Implemented a database update module and a driver notification module using MQTT.

Android Java GPS Maps MQTT Modules Android App Enhancements