Nikita

Nikita Chornyi
Ukraine, Kyiv | LinkedIn | [відкрити контакти](див. вище в блоці «контактна інформація») | Telegram: @nchornyi | [відкрити контакти](див. вище в блоці «контактна інформація»)
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PROFESSIONAL SUMMARY

Full-stack Engineer and Tech Lead with 4+ years of experience building SaaS platforms, internal admin
systems, marketing automation tools, and AI-powered products. Led small engineering teams across
frontend and backend, owned architecture, code quality, technical planning, and delivery. Strong in
React, Next.js, TypeScript, FastAPI, PostgreSQL, AWS, and complex API integrations including OpenAI,
Anthropic, Google Ads, and Stripe.

CORE SKILLS
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Frontend: React, Next.js, TypeScript, Vue.js, MUI, Tailwind CSS
Backend: FastAPI, Node.js, NestJS, PostgreSQL, Redis, REST APIs, GraphQL
Cloud & DevOps: AWS, Docker, Nginx, GitHub Actions, CI/CD
AI & Integrations: OpenAI API, Anthropic API, Google Ads API, Stripe, OAuth/JWT
Architecture & Leadership: System design, team and technical leadership, code reviews, task
decomposition, mentoring, delivery ownership
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WORK EXPERIENCE
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MindcoreEnterprise ​​ ​ ​ ​ ​ ​ ​ ​ Remote
Co-Founder & Lead Full-stack Engineer ​ July 2025 – Present

AI-powered enterprise SaaS platform that centralizes company workflows, business operations, and AI-assisted
execution in a single role-based system.
●​ Led a 5-person engineering team, owning architecture, technical planning, task decomposition, code quality,
and delivery across frontend and backend.
●​ Worked directly with sales, finance, HR, inventory, head office, and management teams to map department
workflows, gather requirements, and translate company operations into scalable SaaS modules.
●​ Designed and built a centralized enterprise platform that reduced office staffing needs by 30% through
automation, process consolidation, and cross-department workflow optimization.
●​ Automated key parts of the lead-to-client and finance lifecycle, including lead intake, CRM records, client
operations, task assignment, invoice generation, payment confirmations, and financial visibility.
●​ Implemented secure role-based architecture with JWT, granular RBAC, role hierarchy, user invitations,
modular APIs, and AI-assisted request routing connected to business workflows.
Technology stack: Next.js, React, TypeScript, FastAPI, PostgreSQL, Alembic, AWS, OpenAI / Anthropic /
multi-provider AI, Redis.​
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AdTech / Marketing Automation Company (NDA)​​ ​ ​ ​ ​ Remote
Tech Lead / Full-stack Engineer ​ June 2024 – July 2025

NDA-protected AdTech automation platform for Google Ads account operations, campaign infrastructure,
finance workflows, and crypto payments.
●​ Led a 3-person engineering team, owning architecture, task planning, code quality, and delivery across
backend services and the admin platform.
●​ Built a microservice-based automation system that streamlined company operations, reduced manual work,
and improved efficiency across ads, finance, and payment workflows.
●​ Implemented multi-chain crypto payment infrastructure across TRC20, ERC20, and BEP20, supporting
deposits, confirmations, payouts, balances, and transaction tracking.
●​ Delivered a secure Next.js/React admin console for verified users, with role-based dashboards and
campaign, account, and finance management tools.
Technology stack: Next.js, React, FastAPI, PostgreSQL, Redis, Celery, Google Ads API, Web3/tronpy, Render.​
AESTAR​ Remote
Full-stack Developer, Outsource & Contract Projects ​ January 2023 – June 2024​
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Outsource development work across client web applications, 3D configurators, mobile products, computer
vision tools, and interactive business solutions.
●​ Worked directly with clients to clarify requirements, propose technical solutions, estimate tasks, and turn
product ideas into MVPs and production-ready releases.
●​ Delivered client projects across web, mobile, 3D visualization, healthcare, product configurators, and
computer vision domains.
●​ Built interactive 3D and visual web experiences using Three.js, Matterport SDK, Fabric.js, OpenCV.js,
jsQR, and browser Web APIs.
●​ Supported projects from MVP validation to production release, iterating on client feedback, improving UX,
and adapting architecture to product needs.
Technology stack: React, TypeScript, Nuxt, React Native, Three.js, Matterport SDK, Fabric.js, OpenCV.js,
Web APIs, Python, Node.js, PHP.

BitnIT ​ Remote
Frontend / Full-stack Developer, Outsource & Contract Projects ​ December 2021 – January 2023​
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Outsource development work across cybersecurity browser extensions, AdTech automation platforms,
e-commerce systems, client dashboards, and business web applications.
●​ Delivered client projects across cybersecurity, advertising automation, e-commerce, dashboards, and
internal tools, working across frontend, backend, integrations, and product iteration.
●​ Built and improved a secure Vue 2 browser extension with WebExtension APIs, IndexedDB, encrypted
credential storage, smart autofill, Zero-Knowledge logic, and MSAL-based Azure authentication.
●​ Developed Cyber Unit Technologies web products, including Next.js/TypeScript dashboards, interactive
user-facing modules, reusable UI components, new features and security/performance optimizations.
●​ Developed full-stack AdTech automation features, including domain creation, tracking pixel injection,
ClickFlare data processing, real-time analytics dashboards, JWT/Google OAuth, and AWS deployment.
●​ Built e-commerce and client-facing web applications with Next.js, React, TypeScript, Strapi, PostgreSQL,
GraphQL/REST APIs, and Stripe-powered checkout flows.
Technology stack: React, Next.js, Vue 2, TypeScript, FastAPI, Python, Strapi, PostgreSQL, Redux,
WebExtension APIs, IndexedDB, Crypto-JS, MSAL, Stripe, Docker, AWS.​

EDUCATION
TARAS SHEVCHENKO NATIONAL UNIVERSITY OF KYIV​ Ukraine, Kyiv
Faculty of Computer Science and Cybernetics – Applied mathematics​ Graduation Date: June 2025