Aliaksei Krents

AI/ML • Wrocław, Poland • UTC+01:00 • Fully remote • Work permits: Poland • Available now • from $60k per year

Software Developer

9+ years exp

JavaScript

TypeScript

Node JS

Python

Active 9 days ago

+48 (731) 856635

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Overview

Technical skills

Timeline

Roles

Overview

Senior Software Engineer with 8+ years building scalable distributed systems across full-stack web and AI-integrated workflows. Experience leading architecture for multi-tenant SaaS platforms, implementing event-driven backend services, and integrating LLM-powered automation with structured output pipelines. Strong hands-on background in React/Next.js, Node.js/Python services, AWS-based backend processing, and production testing and CI/CD.

Technical skills

JavaScript

TypeScript

Node JS• Senior • 9y+

Python• Senior • 9y+

Node JS

Express

Nest.JS

Python

FastAPI

AI/ML

LLM

Frontend

Redux

RxJS

Socket.IO

Angular

PostCSS

React.js• 9y+

Next.js• 5y+

React Query• 5y+

Redux Toolkit• 5y+

GraphQL

Material UI

Storybook

Tailwind CSS

Zustand

Mobile

Firebase

PWA• 7y+

DevOps

Azure

Docker

GitLab CI

Kubernetes

Vercel

CI/CD• 9y+

Rest API• 9y+

Azure DevOps• 5y+

GitHub Actions• 5y+

Jenkins• 5y+

WebSockets• 5y+

AWS

AWS Lambda

Cypress

Playwright

Jest• 5y+

Timeline

Senior Software Engineer (AI Full Stack) • Senior

Softkraft • Full-Time

Apr 2024 to Apr 2026 2 Years In office

Designed and led architecture for a multi-tenant enterprise SaaS platform across React/Next.js, Node.js/NestJS, and Python services. Built an LLM integration layer for structured data generation, enrichment, and workflow optimization with robust prompt execution and structured outputs. Implemented event-driven backend microservices, REST and GraphQL APIs, scalable frontend components, and Next.js SSR/SSG performance improvements using AWS Lambda and related services.

React.js

Next.js

Node JS

Python

Redux Toolkit

React Query

Zustand

Storybook

Tailwind CSS

Material UI

GraphQL

Rest API

AWS

AWS Lambda

LLM

Senior Frontend / Full Stack Engineer • Senior

Monterail • Full-Time

Dec 2021 to Mar 2024 2 Years 3 Months Wrocław In office

Built and scaled enterprise applications using React and Next.js with Node.js backend services. Implemented real-time and event-driven data flows using WebSockets and asynchronous processing patterns. Developed Python automation utilities, built authentication and microservice components, improved frontend performance with SSR tuning and bundle optimization, and established CI/CD workflows using GitHub Actions and Jenkins.

React.js

Next.jssince 2021

Node JS

Python

WebSockets

Redux Toolkitsince 2021

React Querysince 2021

Jest

GitHub Actions

Jenkins

Azure DevOps

CI/CD

Full Stack Engineer • Middle

Vilmate LLC • Full-Time

May 2019 to Nov 2021 2 Years 6 Months Warsaw In office

Developed full-stack applications using React and Node.js with microservices for analytics and data processing. Built real-time streaming features using Socket.io and SSE and created a PWA optimized for mobile and offline use. Implemented backend Python automation and designed database schemas and aggregation pipelines for large datasets, including JWT/OAuth-based authentication.

React.js

Node JS

Python

PWA

Full Stack Developer • Middle

Euristiq • Full-Time

Sep 2017 to Apr 2019 1 Year 7 Months Warsaw In office

Built full-stack web applications using React and Node.js, including REST APIs with authentication and secure data handling. Wrote Python automation scripts for backend integrations and processing workflows. Supported cloud deployment and CI/CD automation, and worked on improving legacy system performance and maintainability based on client architecture and product requirements.

React.jssince 2017

Node JSsince 2017

Pythonsince 2017

Rest APIsince 2017

CI/CDsince 2017