# Kostiantyn Makarenko

Kostiantyn Makarenko is a remote worker on Himalayas, Full-Stack Software Engineer at ClickWise, based in Poland.

Source: https://himalayas.app/@kostiantynmakarenko

```text
Full-stack software engineer at ClickWise who decomposed a monolith into four event-driven microservices and eliminated silent message loss.
```

| Detail | Value |
| --- | --- |
| Availability | Looking for a job |
| Location | Poland |
| Authorized to work in | Poland |
| Salary expectations | 55k+ USD |
| Job categories | Full Stack Engineer, Backend Engineer, Frontend Engineer |
| Skills | TypeScript, NodeJS, NestJS, Microservices, Event Driven Architecture, Distributed Systems, Saga, Outbox Pattern, Kafka, RabbitMQ, PostgreSQL, Redis, AWS, REST APIs, BFF |
| LinkedIn | https://linkedin.com/in/web-konstanta |

## About

```text
At ClickWise, I decomposed a monolith into four event-driven microservices, using SAGA and the Outbox Pattern to improve availability and eliminate silent message loss. I also delivered production services end to end, from architecture through deployment and monitoring.

I automated AWS CI/CD pipelines with CodePipeline and CodeBuild, reducing regression testing time by 55% and eliminating manual deployments. I also cut AWS infrastructure costs by 30% by replacing polling-based report ingestion with event-driven AWS Lambda.

At Capgemini Engineering, I built NestJS microservices and a BFF gateway for an enterprise request-tracking CMS. I implemented RabbitMQ messaging with dead-letter queues and idempotent consumers, and optimized PostgreSQL queries to cut latency by up to 40%.

On an advertising platform for the EU market, I built NestJS services and REST APIs for targeting, campaigns, and audience segmentation. I also built reusable React components and set up Slack alerts that cut incident detection time from days to minutes.
```

## Experience

### Full-Stack Software Engineer

ClickWise. Mar 2025 - Oct 2026

```text
Developed and maintained API integrations with 10+ brands, automated CI/CD pipelines, and decomposed a monolith into event-driven microservices. Delivered 5+ production services end-to-end with monitoring and observability.
```

Skills: TypeScript, NestJS, React, PostgreSQL, Redis, Kafka, AWS, Claude-APIs, MCP, CI-CD, Saga, Outbox-Pattern, Prometheus, Grafana, Redux

### Full-Stack Software Engineer

[Capgemini Engineering](https://himalayas.app/companies/capgemini-technology-services). Feb 2023 - Jan 2025

```text
Set up monitoring and alerting with Grafana, optimized PostgreSQL queries, and built NestJS microservices with a BFF gateway. Implemented asynchronous messaging with RabbitMQ and dead-letter queues.
```

Skills: TypeScript, NestJS, Microservices, BFF, RabbitMQ, React, Docker, AWS, CI-CD, Grafana, PostgreSQL, Query-Optimization

### Full-Stack Software Engineer

Ad-tech startup. Oct 2021 - Feb 2023

```text
Built NestJS services and REST APIs for ad targeting, campaign management, and audience segmentation. Set up real-time Slack alerting and developed React frontend with reusable components.
```

Skills: TypeScript, NodeJS, NestJS, React, GitHub-Actions, Prometheus, Grafana, Vercel, REST-APIs, Slack

## Education

### Kharkiv Computer and Technology College of NTU KhPI

Professional Junior Bachelor (associate degree), Software Engineering. 2019 - 2023

```text
Professional Junior Bachelor (associate degree) in Software Engineering from Kharkiv Computer and Technology College of NTU KhPI, completed from 2019 to 2023.
```

## Tech stack

- Amazon S3
- AWS CodePipeline
- GitHub Actions
- AWS CodeBuild
- PostgreSQL
- MongoDB
- Node.js
- NestJS
- Tailwind CSS
- Slack
- Redis
- React
- Kafka
- RabbitMQ
- Grafana
- Prometheus
- Prisma
- AWS Lambda
- Vercel
- TypeScript
- Docker
- Claude Code
- Redux Toolkit
- Express
- AWS
- REST APIs

To contact Kostiantyn, message them from this profile with a Himalayas employer account: [Hire on Himalayas](https://himalayas.app/hire).

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