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Offprint from Outegro magazine · Issue No. 1 · October 2026

Nick Lukashik

Senior Full-Stack Engineer · AI

About

Senior Full-Stack Engineer with 6+ years of commercial experience building SaaS, CRM and e-commerce products with React, Next.js, Node.js and NestJS. I turn ambiguous requirements into shipped systems, owning delivery from product discovery and architecture through implementation and production support. I am particularly effective where complex state, inconsistent providers, retries, cache invalidation and system boundaries meet.

My work combines product ownership and systems reliability: launching a profitable B2B revenue stream, simplifying operational workflows and designing dependable APIs. Today I also build LLM products and agents in production: self-hosted GPU inference, RAG and MCP agents with human-in-the-loop workflows. I work agent-first with Claude Code and Codex, owning architecture, review and outcomes.

Experience

Toggle · AI Full-Stack Engineer

Apr 2025 – Present

Applied LLM products, agentic workflows and GPU inference

  • Built a conversational AI SaaS on a self-hosted open-source LLM, since commercial APIs could not meet its content requirements: GPU inference on Vast.ai, Dockerized model serving and a Node.js API with retries and graceful degradation.
  • Engineered an MCP-powered AI support agent that retrieves account and product context through scoped, read-only tools, classifies incidents and files structured Jira reports with reproduction steps and evidence.

Printify · Full-Stack Engineer

Mar 2023 – Present

Print-on-demand e-commerce platform; 1M+ monthly users (platform-wide)

  • Led end-to-end technical delivery of a new B2B ordering platform using Next.js, NestJS and PostgreSQL, from requirements and API boundaries to release and production support; the new revenue stream reached profitability in roughly 3 months.
  • Consolidated three independent back-office workflows into one operations platform, centralizing validation and business rules and reducing employee onboarding from around 3 weeks to 1 week.
  • Built an SEO content management service for 10,000+ product pages, enabling marketing to maintain catalog metadata and content without engineering support.

Kommo · Software Engineer

Feb 2022 – Feb 2023

Global CRM platform for small and midsize businesses

  • Reworked a complex multi-step lead-notification wizard: simplified transitions, validation and feedback, bringing typical setup time from more than 30 minutes to under 5 minutes.

FridayTech · Full-Stack Engineer

Jan 2021 – Feb 2022

E-commerce logistics and fulfillment platform for Latin America

  • Designed a Node.js BFF for checkout, moving orchestration of roughly seven backend dependencies server-side and reducing browser requests to about two behind a stable API contract.
  • Developed a reusable React component library adopted by three teams, standardizing shared interface patterns across customer and back-office products.

AdviceSolution · Software Engineer

Jan 2020 – Jan 2021

Customer-facing service pages, technical knowledge tools and business integrations

Independent Developer · Counter-Strike & Steam Projects

2016 – 2020

Roulette and jackpot sites set up to order, Steam trade bots and skin-trading tools

  • Built Steam trade bots: automated trade-offer confirmation and integration of the then-new Steam Guard mobile confirmations, so bots could verify and accept trades without manual steps.
  • Developed a browser extension that merged item prices from csgolounge.com and market.csgo.com and showed them directly on trading pages.

Skills

Frontend
JavaScript, TypeScript, React, Next.js, Angular, Vue, HTML5/CSS3, Tailwind CSS, Redux Toolkit, TanStack Query, Apollo Client
Backend
TypeScript, Node.js, NestJS, Express, Python, PHP, REST, GraphQL, tRPC, Microservices, BFF, JWT, OAuth
Data & Messaging
PostgreSQL, MySQL, MongoDB, Redis, RabbitMQ, Kafka, Vector Databases
AI & Developer Tools
Self-hosted LLMs, MCP, RAG, GPU Inference, Agent Workflows, Prompt Design, Claude Code, Codex, Cursor, Kimi
Engineering Quality
Jest, Vitest, Playwright, Unit / Integration / E2E Testing, Code Review
Cloud & Observability
Docker Compose, Kubernetes, Helm, AWS, GCP, GitHub Actions, GitLab CI/CD, Sentry, Prometheus, Grafana, Linux

Education & Languages

MIREA - Technological University · Bachelor’s Degree, Computer ScienceSep 2020 – May 2024

English: C1, full professional proficiency · Russian: native

Printed from outegro.dev. Print run: 1 copy.