SeniorSoftwareEngineer-Golang/TypeScript

About Threecolts About Threecolts Threecolts is the leading software suite for online & offline consumer brands (Amazon, Walmart, Target, Shopify, eBay, etc.). We’ve built a powerful ecosystem of software solutions to help businesses grow smarter — from revenue recovery and retail finance, to multichannel operations and pricing optimization. With over 500 employees globally and strong backing, we’re scaling fast across new markets and new partner channels. Who We Are We’re a global team built for speed, trust, and impact. As an AI enabled company, AI is integrated across Threecolts from development through to operations, empowering teams to move faster, build better, improve quality, and make more informed decisions. We hire exceptional people from all backgrounds and give them the autonomy to move fast and the accountability to deliver, where you will wear multiple hats, take ownership of challenges, and proactively solve problems beyond your immediate scope. Change is constant, ambiguity is part of the deal, and clear, concise communication is how we stay aligned, so when in doubt, bring people in. 🔥 Key Responsibilities You’ll take ownership of features across the Threecolts Hub, Golang and TypeScript-based systems, delivering them from initial design through to production. You’ll design and build clean, scalable services, APIs, and components that are maintainable, well-tested, and performant. Hub is the central platform where Threecolts customers access their products, manage subscriptions, add companies and organisations, update plan types, and handle billing and payments. Your work will directly support the customer account experience and the systems that connect users to the wider Threecolts product ecosystem. You’ll operate independently within a defined scope, making sound technical decisions and balancing speed with long-term quality. You’ll play an active role in improving the systems you work on, debugging production issues, identifying root causes, an