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PavelAgarkov/README.md

Hi there, I'm Pavel πŸ‘‹

I'm a Staff-level Go backend engineer with 7.5+ years of professional experience (5+ focused on Go).
I specialize in distributed systems, in-memory databases, and high-performance services.


πŸ› οΈ Tech Stack & Expertise

  • Languages: Go (primary), Rust (exploring)
  • Databases: PostgreSQL, MySQL, ClickHouse, Redis, BadgerDB, MongoDB, Tarantool
  • Messaging & Streaming: Kafka, RabbitMQ
  • Concurrency & Scheduling: custom frameworks (rate-envelope-queue, service-pkg, job schedulers)
  • Cloud & Infra: Docker, Kubernetes, Linux (memory management, GC tuning, performance profiling)
  • Architecture: microservices, leader election, CDC replication, snapshotting, custom caches

🧰 Also Worked With

Protocols & APIs

  • gRPC, REST, Protocol Buffers, OpenAPI/Swagger

Storage, Caches & Queues

  • PostgreSQL, MySQL, ClickHouse, Redis, BadgerDB, MongoDB, Tarantool
  • Kafka, RabbitMQ
  • etcd (leader election/locks), in-memory caches, snapshotting

Orchestration & Libraries

  • Kubernetes (ops), Kubernetes client-go / workqueue (rate-limiting queues, metrics)
  • Internal frameworks: rate-envelope-queue, service-pkg, kernel (graceful shutdown, watchdog, schedulers)

Infra & Tooling

  • Docker, Linux (perf, memory/GC tuning, ulimit, noatime), Bash
  • Git, GitLab Packages/CI, Makefile

Observability & Performance

  • Prometheus (component-base/workqueue metrics), Grafana
  • pprof, benchmarks (go test -bench), tracing/latency analysis
  • Structured logging (zap), ELK stack (JSON logs)

Testing & Quality

  • go test (unit/bench), race detector, mocking

Concepts & Patterns

  • Leader election, CDC replication, backpressure, idempotency
  • Drain/Stop lifecycles, graceful shutdown, retries & backoff
  • Binary encodings, roaring bitmaps, memory-efficient K/V layouts

πŸ“Š Languages across my public repos (auto-updating %)

Top languages by % (public repos)

πŸš€ Open Source Projects

Founder & Lead Maintainer of OSS organisation simplegear

  • rate-envelope-queue
    In-memory task queue & scheduler for Go with hooks, backpressure, and drain/stop lifecycle.
    Benchmarked at 3.3M ops/sec for one-shot tasks.

  • template
    Core utilities and abstractions for Go microservices (logging, config, graceful shutdown, etc.).

  • kernel
    Core framework for graceful shutdown, leader election, and initializing critical connections.


πŸ“ˆ Contributions & Impact

  • Refactored legacy systems into scalable microservices at Wildberries.
  • Designed a custom caching layer (cache) with BadgerDB for high-throughput workloads.
  • Mentored engineers (junior β†’ mid-level growth) for the last 1.5 years.
  • Active in open-source: publishing frameworks and SDKs for the Go community.

🌍 About Me

  • πŸ’» Backend engineer, passionate about performance and memory efficiency.
  • 🧠 Strong focus on system design and building reliable distributed services.
  • 🀝 Open to collaboration and contributions in the Go open-source ecosystem.
  • πŸ“ Based in Bishkek.
  • πŸ“« Reach me: agarkov.pavel.ru1@gmail.com

⭐️ Feel free to check out my pinned repositories or reach out if you want to discuss Go, distributed systems, or open-source collaboration!

Pinned Loading

  1. simplegear/rate-envelope-queue simplegear/rate-envelope-queue Public

    Lightweight in-memory queue + scheduler for Go with middleware-style hooks and capacity/backpressure control.

    Go 22

  2. service-pkg service-pkg Public

    Go 1

  3. template template Public

    Go 1