Open to opportunities

Constantine Kotov

@constantinekotov

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Backend-focused software engineer with 6 years of experience.

Poland

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What I'm looking for

I am looking for a role that fosters innovation, collaboration, and growth in backend development and cloud technologies.

Hi, I’m Kanstantsin, a backend-focused software engineer with 6 years of experience in developing scalable, resilient systems using Node.js and related technologies. My work is driven by a strong problem-solving culture and a deep understanding of backend architecture, distributed systems, and cloud infrastructures. I specialize in building fault-tolerant services, API-driven systems, and message-based microservice architectures, particularly in domains like web3, security, and healthcare.

I have a solid track record of designing backend systems from the ground up and integrating with blockchain protocols, message queues (RabbitMQ, Kafka), and various databases (PostgreSQL, MongoDB). I'm also experienced in applying SDLC best practices, contributing to system design decisions, and improving development pipelines and team communication. My diverse experience across multiple industries has equipped me with the skills to tackle complex challenges and deliver innovative solutions.

Experience

Work history, roles, and key accomplishments

Current

Software Engineer

Current

Bluebricks

Jan 2025 - Present (6 months)

Focused on building scalable backend and CLI infrastructure for a multi-cloud platform. Developed a CLI tool in Go and integrated AI features for developer experience. Contributed to infrastructure optimization, migrations, and deployment automation using Kubernetes, AWS, and PostgreSQL.

Go NodeJS AWS PostgreSQL Kubernetes CLI Integration

FullStack Software Engineer

Sublime Ventures

Mar 2024 - Jan 2025 (10 months)

Conducted R&D for unconventional tasks and developed scalable microservice infrastructure. Architected distributed systems, optimized performance, and designed cost-efficient AWS infrastructure. Integrated blockchain technology, including DeFi and NFTs, and worked directly with clients providing dev support.

NodeJS Solidity AWS PostgreSQL Sentry Microservices Distributed Systems

FullStack Software Engineer

Kaseya

Apr 2023 - Feb 2024 (10 months)

Rewrote legacy codebase, incorporating validation and new requirements. Developed an API Gateway and implemented a Go-based API to enhance system efficiency. Participated in designing cost-efficient cloud infrastructure using AWS, focusing on scalability and reliability.

NodeJS Go MySQL PostgreSQL AWS React AngularJS API Gateway Cloud Infrastructure

Software Engineer

Softarex Technologies

Jan 2021 - Dec 2023 (2 years 11 months)

Developed and maintained a healthcare portal for Welkin Health and created a neural network for disease prediction using NLP. Mentored new team members, conducted code reviews, and contributed to system design and client interactions. Gained expertise in system design, NLP, and project management.

NodeJS PostgreSQL AWS React Python Keras Healthcare Portal Development NLP Neural Networks Mentoring System Design

Full Stack Developer

Kata Academy

Jan 2019 - Dec 2021 (2 years 11 months)

Primarily responsible for backend development, building and optimizing services in Node.js and Go for a student learning platform. Created RESTful and GraphQL APIs, implemented business logic, and improved backend performance and scalability. Mentored junior developers and drove technical decisions on architecture and data modeling.