Full Stack Developer (Go)

Location: Overwolf's lair (IL)

Experience Level: Intermediate

Description

We’re on the hunt for a skilled Full-Stack Developer to help shape the future of Overwolf’s Ad Tech platform - powering seamless, high-performance experiences across millions of gamer sessions.

As our Ad Tech Code Crafter, you’ll design elegant backend services, craft responsive front-end interfaces, and keep performance razor-sharp across the stack. You’ll play a key role in evolving a metrics-driven platform and maintaining a lightweight, reliable ad unit runtime that runs safely and smoothly on publisher pages.

So if you love clean code, fast performance, and the thrill of building systems that scale to millions of gamers - this is definitely your quest.

Responsibilities

In this role, you will:

• Design and implement robust backend services and APIs in Go
• Build and evolve clear, responsive browser interfaces to improve user outcomes
• Optimize performance across queries, API payloads, rendering, and asset delivery
• Validate and refine features through hands-on QA and diagnostics
• Maintain a reliable ad unit runtime – including async loading, safe DOM and CSS usage, viewability tracking, and stable cross-browser performance

Requirements

• 4+ years of experience as a Full-Stack Developer
• Strong backend and frontend development skills, including Go, TypeScript, and JavaScript
• Comfort working with Vanilla JS for third-party pages (async loading, DOM APIs, postMessage, iframe patterns, CSP)
• Experience with multi-threaded / concurrent systems
• Strong SQL and data modeling skills for large-scale data
• Ability to work in fast, iterative environments with high ownership

Bonus Points

• Experience with OpenSwoole or similar frameworks
• Familiarity with data visualization and AdTech domains
• Experience building low-latency systems