{DK}
Available

Golang / Backend Engineer2022—26

DaniilKseniakin

I design backend systems that hold up under real load — from warehouse logistics to hotel booking and delivery.

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Visualization of distributed backend infrastructure
BACKEND.SYSTEMS ONLINE
MICROSERVICESGO / 04

01 Profile

Complexity —
turned into a working system.

A—01

Distributed systems

I separate service responsibilities and design events and contracts so the system can evolve instead of being rewritten.

A—02
4+

years of commercial Go development

A—03

Domains

  • 01E-commerce / Retail
  • 02TravelTech / Hospitality
  • 03Logistics / WMS
  • 04FinTech
“
Reliability is not a separate phase. It is a property of the architecture.

— DANIIIL KSENIAKIN

02 Work

Systems that are
already live in production.

  1. 03.2026

    Almaty · Small / Skif Sauda

    Go · retail & delivery

    Backend for a grocery e-commerce platform: online order processing, store availability, and delivery integrations.

    • Built dedicated integration microservices for Glovo and Wolt
    • Implemented store availability calculation using dozens of business parameters
    • Set up Kafka-based event communication and service monitoring

    GO · POSTGRESQL · KAFKA
    KEYCLOAK · REST

  2. 03.202608.2024

    Moscow · Frog Studios

    Go · hotel booking

    A high-load booking platform for a major hotel chain: reservations, payments, and room inventory.

    • Introduced gRPC and Kafka-based event processing
    • Implemented integrations with Logus, OTA platforms, and SSE
    • Optimized PostgreSQL and introduced data sharding

    GO · gRPC · KAFKA · REDIS
    CLICKHOUSE · K8S

  3. 08.202404.2023

    Moscow · Wildberries

    Go · warehouse logistics

    WMS backend for warehouse logistics under peak load and unstable network conditions.

    • Implemented offline-first communication with handheld terminals
    • Optimized streaming barcode scan processing
    • Ensured reliable event delivery, testing, and code review

    GO · POSTGRESQL · REDIS
    KAFKA · RABBITMQ · gRPC

04.2023
—
10.2022

FinTech — SAGA orchestrator and migration of microservices to clean architecture.

GO / GIN / NATS / POSTGRESQL

03 Technology

Tools chosen for the job.
Not for a résumé line.

production.yaml⌘K
01 service: core-api
02 runtime: golang
03 transport:
04   - grpc
05   - rest
06 events: kafka
07 storage:
08   primary: postgresql
09   cache: redis
10 deploy: kubernetes
11 status: healthy_

CORE / DATA

  • Go
  • PostgreSQL
  • Redis
  • ClickHouse

MESSAGING / API

  • Kafka
  • RabbitMQ
  • NATS
  • gRPC
  • REST

INFRA / OBSERVE

  • Docker
  • Kubernetes
  • Prometheus
  • Grafana
  • CI/CD

Open to a conversation

MOSCOW / UTC+3

Have a challenge?
Let's build it.

Telegram is the easiest way to reach me. I reply myself — no forms, no bots.

@DanKs25ksenyakin.daniil@gmail.com ↗LinkedIn ↗
KubSU · Software & IS · 2025GO BACKEND ENGINEER