Олександр

Alexander Lambert
FULL STACK DEVELOPER (REACT, TYPESCRIPT, NESTJS)
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Open to Remote, Ukraine
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PROFILE SUMMARY

Full Stack Engineer with 3+ years of commercial experience designing and scaling modern web
applications across E-Commerce and Logistics domains. Specialized in building high-performance
React and Next.js frontend and robust NestJS and PostgreSQL backends. Experienced in
containerizing applications with Docker, optimizing API performance, setting up automated CI/CD
pipelines, and writing end-to-end tests. Strong background in Agile/Scrum cross-functional
environments. Fluent in English (C1).

TECHNICAL SKILLS

● Languages: TypeScript, JavaScript (ES6+), SQL, HTML5, CSS3
● Frontend: React.js, Next.js (SSR), React Query, Zustand, Redux, TailwindCSS
● Backend & DB: NestJS, Node.js, PostgreSQL, Prisma ORM, Redis, REST APIs
● DevOps & Testing: Docker, Docker Compose, Playwright (E2E), GitHub Actions, Vercel

WORK EXPERIENCE

Full Stack Developer - Mithrill Development

Jul 2025 - Present

Full-stack admin platform for managing products, orders, and customer analytics for an online retail
client.

● Spearheaded the frontend architecture for complex admin dashboards and storefronts using
React, Next.js, and TailwindCSS to deliver highly interactive UIs.
● Managed complex local UI state using Zustand and integrated React Query for efficient
server-state caching and synchronization with the NestJS backend.
● Boosted initial load performance by ~35% by migrating key catalog pages to Next.js
Server-Side Rendering (SSR).
● Built and maintained a custom, reusable UI component library documented with Storybook,
significantly accelerating feature delivery.
● Implemented strict end-to-end type safety by generating frontend TypeScript interfaces
directly from backend OpenAPI/Swagger schemas.
● Authored comprehensive E2E UI tests using Playwright to cover critical checkout flows, and
configured automated Vercel preview deployments.

Technologies: React.js, Next.js, TypeScript, NestJS, PostgreSQL, Prisma, Redis, Docker, Docker
Compose, React Query, Zustand, Playwright, Storybook, TailwindCSS, GitHub Actions, Vercel.

Full Stack Developer - m2k

Nov 2024 - Jun 2025

Logistics management system handling real-time order tracking, driver assignments, and route
optimization.

● Engineered dispatch & admin dashboards in React with Zustand for complex local UI state
and React Query for server-state caching.
● Extended database schemas and API endpoints in NestJS and PostgreSQL to support driver
assignment and status updates.
● Reduced database read latency by 40% for high-frequency dispatcher dashboards by
implementing a Redis caching layer.
● Configured Docker Compose setups for local database and Redis service replication during
development.
● Secured platform access using JWT authentication and role-based route guards in NestJS,
with Google OAuth 2.0 integration via Passport.js.
● Built complex multi-step validation forms for order creation using Formik and Zod/Yup
schemas, improving data integrity.

Technologies: React.js, TypeScript, NestJS, PostgreSQL, Prisma, Redis, Docker Compose, JWT,
Google OAuth 2.0, React Query, Zustand, Formik, Styled Components, TailwindCSS.

Frontend Developer - Freelance

Aug 2023 - Oct 2024

Custom web applications, booking platforms, and marketing landing pages for international clients.

● Delivered pixel-perfect, responsive client interfaces from Figma designs using React,
Redux/Zustand, and TailwindCSS.
● Integrated third-party REST APIs and payment services into client booking platforms with
robust error handling.
● Configured production environments and domains on Vercel with automated preview builds
for client reviews.
● Managed version control, release branches, and handover documentation via Git/GitHub for
seamless project delivery.

Technologies: React.js, JavaScript, React Query, Redux, Zustand, Formik, TailwindCSS, Vercel, Git.

EDUCATION

Bachelor of Software Engineering - Zaporizhzhia National University

2019 - 2023

LANGUAGES

● English: Advanced (C1)
● Ukrainian: Native