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Slave Atanasov

Verified Expert in Engineering

Software Developer

Skopje, Macedonia

Toptal member since June 4, 2026

Expertise

Windows Development MacOS React.js GitHub JavaScript TypeScript Next.js Node.js Angular Vercel PostgreSQL

Bio

Slave is a senior software engineer focused on full-stack web development with React, TypeScript, JavaScript, Next.js, and Node.js. He has delivered production features at Apple, Zoox, and Deltatre. His strengths include front-end architecture, APIs, complex data flows, thoughtful UI/UX, AI-enabled products, and end-to-end experience across cloud, CI/CD, infrastructure, and data. Slave has worked in remote, distributed teams and shipped his own SaaS products.

Portfolio

Deltatre

Next.js, React, GitHub, APIs, SDKs

Experience

GitHub - 8 years
React - 8 years
JavaScript - 8 years
TypeScript - 7 years
Node.js - 6 years
CI/CD Pipelines - 6 years
Next.js - 5 years
PostgreSQL - 1 year

Preferred Environment

Windows, MacOS

The most amazing...

...thing I’ve done is help build an autonomous vehicle diagnostics tool at Zoox, work on creative media projects at Apple, and grow my own SaaS to 1000+ users.

Work Experience

Senior Web Developer

2026 - 2026

Deltatre

Implemented client- and server-side features in Next.js, contributed to architecture decisions, and integrated complex, not fully documented APIs as systems from an acquired company were brought into the parent platform.
Led the front-end integration of authentication, subscriptions, payments, and profile systems from an acquired company, adapting them to fit the parent company’s product, flows, and user experience.
Built white-label software with reusable flows for multiple use cases and clients, onboarded contractor engineers, and collaborated with stakeholders, decision-makers, and teams from the acquired company.

Technologies: Next.js, React, GitHub, APIs, SDKs

Experience

Social Platform for Parents

https://next9months.com/

The social platform for parents. Discover baby names, host virtual gender reveals, and run engaging polls with family and friends. This is built with Next.js, Supabase, Vercel, Stripe, and cloud services, and has reached 1,000+ users with steadily growing MRR.

Skills

Libraries/APIs

React, Node.js

Tools

GitHub

Languages

TypeScript, JavaScript

Frameworks

Next.js, Angular

Platforms

Windows, MacOS, Vercel

Storage

PostgreSQL

Other

APIs, SDKs, Supabase, CI/CD Pipelines

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