Seva Kaloshin
Senior Software Engineer at Uber
Aarhus, Central Denmark Region
Summary
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Rockstar🎓
Top SchoolSeva Kaloshin is a Senior Software Engineer based in Aarhus with over a decade of experience building and operating web-scale backend systems, and seven years focused on server-side development and DevOps. He specializes in Golang and has taken multiple services from design to production, working across relational and analytical stores like PostgreSQL and ClickHouse as well as Redis and Kafka. Comfortable in cloud-native environments, he applies GitLab CI, Kubernetes, Helm, Istio and multi-cloud platforms (Azure, GCP) to deliver resilient, observable systems. His open-source contributions include enhancing the Cadence workflow engine—adding CLI features, refactoring for efficiency, and improving test coverage—highlighting a practical focus on reliability and developer ergonomics. Having progressed through senior roles at companies including Semrush, Vivid Money, IONOS and now Uber, he blends systems-level thinking with hands-on implementation in high-throughput environments. An understated strength is his knack for turning complex retry and orchestration logic into well-tested, maintainable code that scales in production.
10 years of coding experience
10 years of employment as a software developer
Saint Petersburg State Electrotechnical University "LETI"
Английский, Русский
Stackoverflow
111reputation
9kreached
0answers
5questions
Github Skills (17)
unit-testing10
testing10
cadence10
distributed-systems10
go10
workflow-automation10
golang10
orchestration10
command-line-interface9
command-line9
cli9
mochajs6
nodejs6
sql6
mocking6
Programming languages (6)
Github contributions (5)
cadence-workflow/cadence
Nov 2023 - Mar 2025
Cadence is a distributed, scalable, durable, and highly available orchestration engine to execute asynchronous long-running business logic in a scalable and resilient way.
Role in this project:
Back-end Developer & Test Automation Engineer
Back-end Developer & Test Automation EngineerContributions:30 reviews, 59 PRs, 27 pushes in 1 year 4 months
Contributions summary:Seva primarily contributed to the Cadence workflow orchestration engine, enhancing its functionality and reliability. They added a new command line interface (CLI) feature for querying workflow types and implemented comprehensive unit tests for utility functions, which improved code coverage. Furthermore, the user refactored existing code to improve its efficiency and added tests to validate the retry policy implementations and other utility functions.
cadenceresilientorchestration-engineservice-buslogic
arzonus/cadence
Nov 2023 - Mar 2025
Cadence is a distributed, scalable, durable, and highly available orchestration engine to execute asynchronous long-running business logic in a scalable and resilient way.
Contributions:2 PRs, 121 pushes, 50 branches in 1 year 4 months
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