Koinly is a successful product used by crypto investors around the world, helping them make sense of complex portfolios and tax obligations across chains, wallets, exchanges, and Defi protocols. The bar is simple to describe and hard to deliver: a user should be able to reconcile thousands of transactions and file their taxes in under 20 minutes.
We're looking for a Frontend Staff Engineer to take deep ownership of our data platform - the engine behind products at the intersection of crypto, finance, and tax. You'll work across a modern React web application and a high-performance distributed data-processing backend, with a new React Native mobile app joining your scope in the future.
This is a senior, hands-on role for someone who combines exceptional architecture/engineering craft with complete ownership of the visual and UI layer. In our engineering-driven environment, we do not rely on dedicated UI designers. You are expected to lead by example: writing high-quality code, making sound architectural decisions, and taking personal pride in building intuitive, highly polished UI components that users interact with daily.
We’re a remote-first, async-first startup with deep product-market fit. If you value autonomy, technical excellence, and clear communication over meetings and process complexity, Koinly is the place for you.
🚀 Work within one of the most rapidly growing industries in the world
We're looking for someone who thrives on complex, business-critical financial web applications - systems with real architectural depth and high stakes. You’ll focus on optimizing, refactoring, and elevating our existing codebase while steadily delivering critical new features for a high-performance interface that handles massive datasets and complex DeFi reconciliations.
Above all, we value a high sense of product ownership, exceptional code quality, autonomy, and openness: you take responsibility for outcomes, not just tasks, and you work independently while staying transparent and collaborative.
You should have deep, production-level experience across our core stack:
We're driven by hiring not only by experience and relevance but also by ambition. We celebrate anything ‘outside of the box’, so if you don’t meet every single listed criterion, please do still apply—we’d love to hear from you.
We aren't just building a calculator; we're building a platform that empowers crypto investors to make the best decisions for their financial future. If you’re ready to own a piece of that journey and build a product people actually need, we want to hear from you.
Due to our domain, background checks are required before joining. By applying, you consent to processing your data for recruitment purposes per our privacy policy.
Koinly is a tax solution for cryptocurrency investors and accountants. Anyone who owns multiple exchange accounts or wallets knows the pains when it comes to declaring taxes. Koinly was built to solve this very problem - by integrating with all major blockchains and exchanges such as Coinbase, Binance, Bittrex and CEX.io, Koinly reduces crypto tax reporting to a few minutes of work. Simply connect your exchange accounts / public addresses and let Koinly figure out your capital gains. Your final tax report is presented in a format that is accepted by your tax agency, making it easy to print & file. Alternatively, import our report into a tax filing software like TurboTax, TaxACT or Xero.
We currently support 100+ countries, including the USA, UK, Canada, Australia, Sweden, Norway, Ireland and many more - see our website for the full list.
