Senior Fullstack Software Engineer, EU

🇪🇪 Tallinn, Harjumaa
EUR710 - EUR835 Annual
Posted 7 months ago
Expires June 9, 2026
Full TimeOn-siteEngineering

Lightspark is building the open payment protocol for the Internet making money move like data: instantly, globally, and without friction. With enterprise tools like Grid, Node, and Spark, businesses can send and receive money instantly, securely, and at a fraction of the cost, anytime, anywhere. Lightspark is headquartered in Los Angeles, California, but serves the world.

At Lightspark, we are pioneering the future of payments by leveraging the Bitcoin network and diving deep into the capabilities of the Lightning Network. Our mission is to build a secure and robust payment infrastructure that bridges the gap between traditional finance and cryptocurrency. This role sits within Striga, a Lightspark company, based in Tallinn, Estonia. Together, we’re building Lightspark’s European payments platform — connecting fiat and crypto rails to enable faster, more efficient money movement across borders

We are seeking a senior fullstack engineer who thrives in entrepreneurial environments, enjoys writing and shipping code fast, and can help us build out a great culture of engineering excellence. As a member of our Lightspark Payments Europe team, your primary responsibilities will include designing, leading and building the user experience for our enterprise product, creating and automating our Connect SDKs, and developing new features for our APIs and websites.

WHAT YOU WILL BE DOING

- Designing, building, and maintaining the Lightspark/Striga core product experience for our customers, while also generating and upgrading our SDKs and APIs across multiple platforms and languages.

- Building internal tooling in line with applicable regulations, integrating with central banks, payment systems and diving deep into the specificities of real time payments.

- Coding in Typescript most of the time but also occasionally in Go, Python and Kotlin. You don’t need to know all of these to join, but we hope you’ll be excited to learn!

- Working closely with UX design, other...

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