About
Further insights into who I am and the purpose of this blog.
Artem Krivoshchekov
I build reliable web products that ship fast, scale safely, and create measurable business value.
I am a fullstack engineer with hands-on experience across product development, platform modernization, and process automation. I work comfortably from architecture and implementation to performance tuning and team delivery.
Why teams hire me
- I take ownership from idea to production and focus on outcomes, not only code.
- I turn complex business requirements into clear technical solutions.
- I improve development speed with pragmatic automation, better tooling, and clean architecture.
- I communicate clearly with product, design, and engineering stakeholders.
Core expertise
- Frontend: React, Next.js, TypeScript, state management, UI architecture
- Backend: Node.js, Golang, API design, integration workflows
- Platform: Docker, Kubernetes, cloud services, CI/CD practices
- Product engineering: feature delivery, legacy refactoring, reliability improvements
What you can expect from me
- Strong execution with high code quality standards
- Transparent communication and predictable delivery
- Care for maintainability, scalability, and long-term product health
Open to full-time and contract roles
If you need an engineer who can quickly understand your domain, deliver production-ready solutions, and raise the technical bar of the team, let's talk.
My Career
Resume
- Designed and shipped a full in-game economy for DinoRun — vesting mechanics, anti-fraud safeguards, store + IAP monetization, and anti-cheat systems serving 10,000+ concurrent users.
- Built an AI-driven news pipeline for CactusPlay (games marketplace): n8n + GPT-4 rewrites RSS feeds into 30–50 SEO-optimised WordPress articles per week with zero manual editorial effort.
- Engineered AI content automation for HYPEOSLAV — prompt engineering, distributed rendering workflows, and cost-optimised pipelines for high-volume graphics, audio, and video production.
- Delivered end-to-end full-stack infrastructure across all three products: payment gateway integrations, DevOps pipelines, and real-time monitoring systems.
- Engineered a Node.js client to synchronise 20,000+ products hourly across PlayStation Store, Xbox Store, and WooCommerce, maintaining data consistency for an e-commerce platform generating $10k+/mo in revenue.
- Developed and maintained custom WordPress plugins and a Yandex.Market integration to automate order processing and expand sales channels.
- Reduced API contract mismatches by ~40% across a 20-service microservice architecture by implementing typed DTOs between Go backends and TypeScript frontends.
- Built and scaled Go backend services to handle thousands of requests per minute with P95 latency under 200ms.
- Implemented robust error-handling and validation patterns that decreased data-related production incidents by ~35%.
- Managed infrastructure as code with Terraform and scaled services using AWS (EC2, SQS), ensuring reproducible and reliable environments.
- Led 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 for off-chain metadata storage.
- Reduced GraphQL API latency by 60% through targeted query batching and caching in a .NET Core and Go backend.
- Architected the frontend with Next.js, Wagmi, and Viem to provide secure wallet connections.
- Led a team of 3 engineers, owning the technical roadmap and sprint planning for a B2B marketplace platform.
- Architected a Node.js/NestJS microservices backend and React/TypeScript frontend, improving page load times by ~25%.
- Increased feature delivery speed by ~35% by creating a reusable UI component library and standardised Redux state management patterns.
- Lead Software Engineer (Mar 2020 – Feb 2022) — promoted to Lead; managed a 7-engineer team responsible for enterprise platforms serving 5,000+ daily active users; drove React adoption, increasing UI responsiveness by ~30%.
- Owned technical direction and code reviews for a corporate portal, reducing production defect rates by ~20% through standardised practices and mentoring.
- Software Engineer (Jun 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.
- Software Engineer (Jul 2016 – Jan 2018) — implemented new features for the corporate SharePoint portal, built reporting services for university applications, and managed SQL Server databases and SSRS reports.
- Software Engineer (Jan 2014 – Jul 2016) — maintained the corporate SharePoint portal and developed new features using C#, SQL Server, and Git.
Education
2024 – PresentTeclab Instituto Técnico SuperiorCybersecurity · AI Professional Certificate· Argentina- Ongoing professional programme focused on cybersecurity.
- Dec 2025 — Curso de Actualización Profesional en Inteligencia Artificial. Credential ID:
64589d0d-ca4b-4040-a7b8-a0230ac0f336. Verify →
- Conducted Ethereum MEV research on security vulnerabilities with tools for mempool inspection and transaction tracing to identify reentrancy risks.
- Designed simulation environments with Hardhat and Foundry to test smart contract resilience against sandwich attacks and frontrunning.
- Advanced React and Redux state management patterns.
- View certificate (PDF) →
- Computer programming with focus on React.js.
- View certificate (PDF) →
- Specialized in computer security, low-level programming, and vulnerability research.
- Completed a thesis on large-scale data analysis.
Tech stack
Most of my work lives in private repos or organization VCS, but I can share code samples for technical review. The examples below are from pet projects:
Some of my public repo examples:
Open Source Contributions
HashLips Art Engine — rarity by generation settings
7,216 upstreamContributorContributed a rarity calculation feature to one of the most widely-used NFT generation tools ever built (7,216★ · 4,228 forks on HashLips/hashlips_art_engine). The original engine assembled artwork layers but had no way to compute per-trait rarity from the configured generation weights. The addition automatically derives rarity scores from the collection's own generation settings — a capability missing from the original and heavily requested by the NFT creator community. Applied across both the core engine and the companion desktop app (hashlips_art_engine_app, 150★ · 74 forks).
JavaScriptNFTGenerative ArtWeb3hexgrad/kokoro — Korean language support
6,850 upstreamPR openContributorAdded Korean language support to Kokoro (6,850★ · 746 forks) — one of the most-starred open-source text-to-speech models, powering the Kokoro-82M model on Hugging Face. The contribution extends the model's language coverage with Korean phoneme handling across 4 files (25 additions), enabling Korean TTS generation for a community of thousands of developers building voice-enabled applications.
PythonTTSAINLPKoreanmev-template-rs — mining pool attack patterns
725 upstreamContributorExtended the most-starred Rust MEV boilerplate on GitHub (725★ · 125 forks, by degatchi) with additional strategy patterns targeting mining pool-level exploitation scenarios. The upstream template covers standard searcher flows; the extension adds patterns for pool-level timing attacks and block reorganisation simulations — substantially expanding the research utility of the template for PoW security analysis beyond typical sandwich and arbitrage use cases.
RustEthereumMEVEVMMiningcaptainzero93/security_harden_linux — Debian/Ubuntu SSH hardening
142 upstreamMergedContributorMerged PR (#16) to a semi-automated Linux security hardening toolkit (142★ · 39 forks) that targets DISA STIG and CIS Compliance standards. Fixed two concrete gaps in Debian/Ubuntu support: dynamic resolution of the sftp-server binary path (hardcoded paths failed on most Debian systems), and intelligent UFW SSH rate-limiting that correctly detects whether the active service unit is named ssh or sshd depending on the distribution. The fix (40 additions, 9 deletions) was merged into the v5.1 template without behavioural regressions.
ShellLinuxSecuritySSHSTIGCISjquense/react-widgets — className forwarding (2 PRs)
MergedContributorFixed a prop-forwarding bug across two input components of react-widgets — a widely-adopted accessible form input library for React used across thousands of production applications. PR #1002 (merged, 2020): className forwarding for NumberInput. PR #1004 (submitted, 2021): the same fix for DateTimePickerInput. Both bugs caused className passed from a parent to be silently dropped, breaking custom styling in composite components. Each fix is minimal and non-breaking: 5 additions, 2 deletions, 1 file.
ReactTypeScriptUI LibraryAccessibilityparadigmxyz/artemis — MEV bot framework contribution
2,938 upstreamContributorContributed to Artemis (2,938★ · 573 forks) — the most widely-used modular Rust framework for building MEV bots, maintained by Paradigm, one of the leading crypto research and investment firms. Artemis provides the collector → strategy → executor pipeline that underpins professional MEV infrastructure. The contribution extends the framework's strategy layer with additional patterns developed during active MEV research, building on top of the battle-tested async Rust architecture used in production by searchers across Ethereum.
RustEthereumMEVEVMParadigmlibevm/subway — sandwich bot research extension
2,217 upstreamContributorExtended libevm/subway (2,217★ · 526 forks) — the most-referenced practical example of on-chain sandwich attacks on Ethereum — as part of deep-dive security research into blockchain transaction vulnerabilities. Improvements cover custom simulation logic for more precise victim transaction targeting, hardened execution paths to handle mempool race conditions, and additional instrumentation for auditing attack surface coverage. The work formed the empirical basis for vulnerability reports and security recommendations on EVM transaction ordering.
RustEthereumMEVBlockchain SecurityEVMlibevm/subway + Flashbots bundle integration
2,217 upstreamContributorExtended the same libevm/subway framework (2,217★ · 526 forks) with Flashbots bundle submission — the dominant infrastructure for private mempool transactions used by professional MEV searchers and security researchers worldwide. The integration eliminates public mempool exposure of the base bot, enabling reproducible private-environment sandwich simulations. This makes research findings significantly more reliable by removing external noise (competing bots, gas price wars) from the measurement environment.
SolidityEthereumFlashbotsMEVEVMplab-assistant
12AuthorBrowser extension built for a content operations team working with one of the most-visited Eastern European torrent platforms. Speeds up classification and cataloguing workflows — allowing scrapers to filter, tag, and navigate a catalogue of hundreds of thousands of entries in a large 18+ content library without leaving the page. Cuts per-item processing time significantly and reduces navigation overhead across deep paginated archives.
JavaScriptBrowser ExtensionContent Operations
Open for contract collaboration
I am available for contract-based collaboration. If you have an interesting project idea, schedule a call via Calendly.
Schedule a 30-min call