Middle Full Stack Engineer

SBC Performance is a digital marketing and ad-tech ecosystem partnering with the world’s top ad platforms to drive performance. We help brands scale globally through high-converting creative marketing solutions and smart campaign optimization.

We’re proud to be elite partners with TikTok (Top 1 globally), Meta (Top 10), and Google.

With a team of 250+ professionals across the U.S., the Czech Republic, Poland, Ukraine, and more, we’re building a fast-moving, data-first performance culture — and we’re now expanding our engineering team.

We’re looking for a Middle Full Stack Engineer with strong knowledge of JavaScript/TypeScript and a passion for serverless web development using Cloudflare's ecosystem.

This role is perfect for someone who thrives in a fast-paced, product-driven environment and wants to build scalable services at the edge using cutting-edge technology.

Key Responsibilities

• Develop and maintain full-stack applications using Cloudflare Workers, Wrangler CLI, and D1 SQL
• Work with REST APIs and serverless functions to support internal products and automation
• Create modular, responsive frontends using HTML, CSS, and JavaScript/TypeScript
• Work with data sources and storage layers, including Cloudflare D1 and KV (if applicable)
• Collaborate closely with product managers, designers, and other engineers to scope and deliver features
• Write clean, well-documented, and testable code
• Participate in code reviews, testing, and deployment workflows using Git

Requirements:

• 2–4 years of experience in web development, with a focus on full-stack or backend
• Solid understanding of JavaScript/TypeScript, HTTP, and asynchronous programming
• Hands-on experience with Cloudflare Workers or similar serverless runtimes
• As a plus practical experience using Wrangler for deployment and environment management
• Experience working with SQL (preferably Cloudflare D1) and REST APIs
• Familiarity with Git workflows and CI/CD practices
• Ability to work independently in a remote-first, async team culture
• Strong written and spoken English (B2+)

What We Offer:

• Remote or On-site job across our locations in Prague, Czechia, and Warsaw, Poland
• Competitive compensation
• Flexible working hours: we start our operation day between 9:00 — 11:00 CET
• Paid vacation and sick leaves
• Educational support: reimbursement of certification, training, and a knowledge-sharing atmosphere
• Company events and multiple internal activities
• Open feedback and transparent direct communication

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