~/damir $ whoami

Damir
Tagilbayev

Backend engineer · NestJS · Python

I build backends that hold up in production, from microservices and APIs to data pipelines and full-stack web apps, and own them end to end: system design, databases, messaging, deployment and support.

daily users on systems I built
500+
daily users on systems I built
faster heaviest SQL queries
40%
faster heaviest SQL queries
business processes automated
15+
business processes automated
statusopen to work
locationAlmaty, KZ · remote / relocation
speaksKazakh · Russian · English (B2)
View work→
damir.top — zsh
Type "help" to see available commands.
 
$
scroll

01 / about

Who I am

I'm a 20-year-old backend engineer from Almaty with 3+ years of commercial experience. I build event-driven microservices in NestJS and Go on PostgreSQL, wired together with Kafka, NATS and gRPC.

Most recently at Avrora Holding I shipped 10+ modules of a CRM/ERP platform used daily by 500+ people across 10+ departments, moved inter-service calls onto events so teams could deploy independently, and co-designed the BPM engine behind 15+ automated workflows.

Before that I freelanced for fintech, crypto and small businesses: payment-gateway and wallet integrations, Telegram bots, data aggregators and full-stack Next.js platforms, owned from requirements to the Linux box they run on.

Off the keyboard I'm usually in the mountains around Almaty, hiking or mountaineering.

Languages
Kazakh · Russian · English
native · fluent · B2
Work mode
Remote or relocation
based in Almaty, UTC+5

Tech Stack

Node.js
NestJS
Python
Golang
PostgreSQL
Redis
GraphQL
Kafka
gRPC/REST
Docker
TypeScript
Linux

// languages

Go · TypeScript / Node.js · Python · SQL

// backend

NestJS · Gin · GraphQL · REST · gRPC · WebSockets · unit & e2e tests

// data & infra

PostgreSQL · Redis · MongoDB · Kafka · NATS · Docker Compose · Nginx · GitHub Actions / GitLab CI

// frontend

React · Next.js · Tailwind

02 / projects

Work Experience

What I've shipped, from an enterprise CRM/ERP platform to payment integrations and data pipelines, with the numbers behind it.

CRM / ERP Platform

Full-time

Avrora Holding · Backend Developer · Dec 2025 — May 2026

Internal CRM/ERP platform running day-to-day operations across the holding. I built core backend modules as NestJS and Go (Gin) microservices on PostgreSQL, and moved inter-service communication onto events.

daily users
500+
modules shipped
10+
GraphQL/REST endpoints
40+
heaviest query time
−40%
  • ▸Migrated to Kafka/NATS events, removing 10 synchronous dependencies so services deploy independently
  • ▸gRPC APIs between services; GraphQL and REST at the edge
  • ▸Co-designed a BPM workflow engine (state transitions, task routing) automating 15+ business processes
  • ▸Indexing and query restructuring cut the heaviest SQL by 40%; background-job throughput doubled
  • ▸Unit and e2e coverage, then a refactor that shrank the codebase ~30% with no behavior change
NestJSGoGinGraphQLgRPCKafkaNATSPostgreSQLBPM

Web Platforms for Businesses

Freelance

Freelance · Full-Stack Engineer · Aug 2023 — Nov 2025

sad-academy.com ↗

Full-stack web apps for clients and small businesses, from design handoff to a running server: an exam-prep platform, e-commerce webshops and landing pages.

AP subjects on S&D
4
design → deploy
E2E
  • ▸S&D Academy: AP & SAT prep platform with practice tests, timed exams and progress tracking
  • ▸E-commerce webshops for small businesses
  • ▸Landing pages and admin panels, deployed with Docker and Nginx
TypeScriptReactNext.jsNode.jsPostgreSQLDocker

Fintech & Crypto Backends

Freelance

Freelance · Backend / Full-Stack Engineer · Aug 2023 — Nov 2025

Backend services for fintech and crypto clients: payment-gateway and wallet integrations, REST APIs and Telegram bots, deployed and run by me.

infra costs
−50%
requirements → prod
E2E
  • ▸Payment-gateway and crypto wallet integrations in Go and Python
  • ▸Telegram bots for client operations and notifications
  • ▸Deployments on Linux VPS with Docker, Nginx and CI/CD
GoPythonREST APIRedisDockerNginx

Data Aggregation Pipeline

Freelance

Freelance · Backend Engineer · Aug 2023 — Nov 2025

Aggregators that collect and normalize data from 10+ external sources and expose it to downstream consumers via REST.

sources
10+
faster runtime
3×
  • ▸Queue-based async processing replaced sequential scraping
  • ▸ETL stage normalizes heterogeneous source formats
  • ▸REST APIs for downstream consumers
PythonGoETLAsyncWeb Scraping

Makkah Travel Platform

Contract

Makkah Travel · Full-Stack Developer · Jun 2023 — Aug 2023

Platform for a travel agency that runs Umrah and Hajj pilgrimages: a public landing page plus an admin panel for users, documents and visas.

concept to launch
0 → 1
  • ▸Client management and tracking with secure storage of personal data
  • ▸Admin workflows for documents and visa status
  • ▸Configured the production server and kept it running after launch
Node.jsTypeScriptMongoDBReact

More on github.com/damirtag