CV · ROXL

Artem Krivoshchekov

Senior Fullstack Engineer (Node.js, React, AI), Buenos Aires, Argentina

Summary

10+ years of experience building end-to-end platforms with TypeScript, Node.js, and React.
Architected and delivered high-load microservice backends (NestJS, Go, .NET) and performant frontends (Next.js), cutting API latency by 60% and page load times by ~25%.
Led development of a Web3 NFT marketplace, reducing infrastructure costs by ~90% through Seaport protocol migration and optimized IPFS usage.
Led teams of 3-7 engineers, owning technical roadmaps, code reviews, and mentoring.

Specialist's Degree in Computer Security | Chelyabinsk State University, RussiaSep 2012 – Feb 2018

Higher Technician Degree in Cybersecurity (in progress) | Teclab, ArgentinaOct 2024 – Oct 2026

Languages: Russian — Native; English — C1; Spanish — B1–B2.

Principal/Founding Engineer, Full-timeFeb 2026 – Present

As a founding engineer, own API development end-to-end for my pods, from specification to release, on Node.js APIs with Python background data processing.
Build enterprise-grade interfaces that let healthcare practitioners access their data reliably, integrate faster, and operate with less friction.
Use AI to accelerate delivery, designing AI-assisted development pipelines with a strong emphasis on security, and drive rigorous code review to keep quality and safety high at every stage.

Founder & Lead Engineer, Self-employedDec 2025 – Feb 2026

Delivered client projects through my own agency, including:

PlayDino.fun (Web3 Game) - Developed the full backend for a Web3 game and Telegram bot (Node.js, Express), implementing tokenomics, presale flows, and EVM contract integration that supported 500+ hours of gameplay.
Estzapros (E-commerce) - Integrated a new payment provider into a production Laravel application, enabling secure card payments for an online service marketplace.
AI Automation: Designed and deployed custom AI agents using OpenAI API, LangChain, Python and n8n to automate customer support triage and document analysis for client workflows.

AI Software Engineer, ContractJul 2025 – Nov 2025

Architected and operated an end-to-end AI video generation pipeline; built distributed rendering nodes and cost-optimized GPU/CPU workflows that grew YouTube channels to 500k+ monthly views.
Engineered prompt-chaining pipelines for generative AI (graphics, audio), creating reproducible and consistent media outputs for client projects.

Software Engineer, Self-employedJul 2024 – Jul 2025

Engineered a Node.js client to synchronize 20,000+ products hourly across PlayStation Store, Xbox Store, and WooCommerce, maintaining data consistency for an e-commerce platform generating over $10k in monthly revenue.
Developed and maintained custom WordPress plugins and a Yandex.Market integration to automate order processing and expand sales channels.

Fullstack Software Engineer, ContractMar 2024 – Jul 2024

Eliminated API contract mismatches across a 20-service microservice architecture by implementing typed DTOs between Go backends and TypeScript frontends.
Built and scaled backend services in Go to handle thousands of requests per minute with a P95 latency under 200ms.
Implemented robust error-handling and validation patterns that reduced data-related production incidents.
Managed infrastructure as code with Terraform and scaled services using AWS (EC2, SQS), ensuring reproducible and reliable environments.

Lead Web3 Software Engineer, Self-employedMar 2023 – Mar 2024

Led the development of an NFT marketplace on Ethereum, delivering custom Solidity contracts (ERC-721, ERC-1155) for minting, trading, and presales.
Cut infrastructure costs by ~90% by migrating to the Seaport protocol and building a custom IPFS client to optimize off-chain metadata storage.
Reduced GraphQL API latency by 60% through targeted query batching and caching strategies in a .NET Core and Go backend.
Architected the frontend using Next.js, Wagmi, and Viem to provide secure wallet connections (MetaMask, WalletConnect) and smart contract interactions.

Lead Fullstack Software Engineer, ContractApr 2022 – Mar 2023

Led a team of 3 engineers, owning the technical roadmap and sprint planning for a B2B marketplace platform.
Architected and built a Node.js/NestJS microservices backend and a React/TypeScript frontend, improving page load times by ~25%.
Accelerated feature delivery by creating a reusable UI component library and standardized state management patterns (Redux).

Lead Fullstack Software Engineer, Full-timeMar 2020 – Feb 2022

Promoted to Lead, managing a 7-engineer team responsible for enterprise platforms used by 5,000+ daily active users.
Owned technical direction and code reviews for a corporate portal, reducing production defects through standardized practices.
Drove the adoption of React for internal applications, improving UI responsiveness and modernizing the tech stack.

Fullstack Software Engineer, Full-timeJun 2018 – Mar 2020

Developed custom SharePoint modules for project management systems, improving data retrieval performance by ~40%.
Built and maintained backend services and frontend components for internal tooling and corporate websites.

Computer Operator, then Software EngineerJan 2014 – Jan 2018

Maintained and extended the corporate SharePoint portal using C#, SQL Server, and Git.
Built reporting services for university applications and managed SQL Server databases and SSRS reports.