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Vladimir Poliakov

@naryck

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Senior Backend Developer specializing in Node.js/TypeScript

Israel

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What I'm looking for

I seek backend roles building scalable microservices and reliable infrastructure, collaborative teams, opportunities to work with cloud-native stacks and GenAI, and clear paths for technical growth.

I am a Senior Backend Developer with eight years of experience building production-grade Node.js and TypeScript services across Crypto/Blockchain, FinTech, gaming, and travel industries. I focus on scalable microservices, reliable infrastructure, and pragmatic engineering that delivers business value.

I have designed and implemented gRPC microservices, payment and booking systems, authentication and role-based access, and integrations with third-party services. I routinely work with Nest.js, Express, TypeORM, and data stores including MySQL, PostgreSQL, MongoDB, BigQuery, Redis and Firestore.

On the infrastructure side I architect and maintain AWS and GCP deployments, including private/public subnets, VPN, read replicas, Lambda, CDN, ELB and observability with CloudWatch. I also build automated tests (Jest), CI-friendly services, and internal tooling and documentation to increase team velocity.

I enjoy exploring GenAI and local LLM tooling - experimenting with LangChain and LangGraph on Nest.js/TypeScript - and I am always eager to learn new technologies and contribute as a collaborative team player or an independent engineer.

Experience

Work history, roles, and key accomplishments

Current

Senior Backend Developer

Current

Q-Lab Innovations

Jan 2023 - Present (2 years 8 months)

Designed and implemented Nest.js gRPC microservices and BackOffice/CMS with JWT auth and roles, built Passenger Service System with social auth and booking management, and integrated third-party booking and payment systems for an airline booking platform.

TypeScript Nest gRPC MongoDB Redis AWS JWT Microservices

Server Developer

Gigantic LTD

Jun 2021 - Nov 2022 (1 year 5 months)

Developed real-time game features (Machine Studio, Lobby/Machines filters) and in-game systems (tiers, ticket machines, reward calendar), created GCP SQL read replicas with TypeORM and implemented internal APIs and support tooling.

MySQL Google BigQuery Firebase Firestore GCP)AWS TypeORM

Backend Developer

Bittax

Jun 2019 - Jun 2021 (2 years)

Built tax filing reports service and transaction/payment systems, deployed secure AWS infrastructure including BTC/LTC nodes on EC2, and implemented comprehensive logging and AML-related features for a crypto tax/AML platform.

Node MongoDB AWS Bitcoin Lambda Cloudwatch

Backend Developer

AlephPay

Jul 2018 - Apr 2019 (9 months)

Developed cryptocurrency-to-fiat exchange services and a co-branded app, redesigned secure AWS infrastructure to reduce costs, and implemented a PostgreSQL full-text KnowledgeBase with relevance sorting.

MySQL PostgreSQL AWS Infrastructure Full Text Search

Backend Developer

Change Labs

Sep 2016 - Apr 2018 (1 year 7 months)

Implemented SQS integration, migrated to Plaid API v2, optimized performance with Redis caching achieving 10x throughput improvement, and built internal services including mail, connectors and data export with centralized logging.

MySQL Redis AWS Amazon SQS Performance Optimization Cloudwatch