Senior Software Engineer (Java / Kotlin)

Runa Β· Runa London

Full Time senior tech
Apply through theHRkey β†’
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Runa is pioneering a first-of-its-kind payment rail that enables the seamless, global money movement at scale. Legacy banking and payment infrastructure struggles to support the demands of today's low-volume, high-velocity payouts, leading to inefficiencies in global payouts. Businesses worldwide send over $20 trillion annually in rewards, remittances, and disbursements often incurring costs of up to 50% per transaction and subjecting recipients to lengthy delays.

Runa transforms this landscape by providing a new digital payments infrastructure that empowers businesses to send digital money instantly and cost-free to anyone, anywhere. The Runa API empowers thousands of businesses to make payments to 5 billion+ consumers in 190+ countries instantly to cards, wallets, bank accounts and gift cards. Leading companies such as Sodexo, TopCashback, Perkbox, Sweatcoin, Coinbase, and Globetopper rely on Runa to facilitate instant, flexible global payouts to tens of millions of consumers.

The Role

As a Senior Software Engineer, you will be responsible for architecting, implementing and deploying software services from end to end. You'll produce clean, scalable, and reusable code to build products which will have a big impact on our customers.

You will have the opportunity to work with a modern, event-driven architecture running on containerised cloud infrastructure, whilst guiding and mentoring more junior engineers in the team.

Our Tech

This role will be building with Java and Kotlin, leaning heavily on event-driven architectures to move money reliably at scale. Services will run in containers on EKS, backed by both SQL and NoSQL databases on AWS.

If you're deep in the Java and Spring ecosystem (Spring Boot, Spring REST, Spring Data, resilience patterns like circuit breakers), you'll feel right at home. Experience with event-streaming and messaging tools like Kafka, EventBridge, SNS or SQS, Kubernetes tooling such as Helm, or infrastructure as code with Terraform will help you ramp up even faster.

What Excites You

What Excites Us

Bonus points for:

Even if you do not meet all of the above requirements but still think you would be a good fit for the role we would still encourage you to apply.

What's in it for you

🏒 We have a hybrid structure with the requirement of 3 days a week at our London Office (Shoreditch)

πŸ“šΒ£1,000 annual L&D allowance to invest in mastering your craft, including accredited studies. Plus 5 L&D days per year

🌴 25 days holiday + public holidays

πŸ”‹ Runa Reset Days - Runa closes on the first Friday of each quarter for a well-deserved, Reset Day

β˜€οΈ Summer Hours - In the month of August, we log off at 3pm on Fridays.

πŸ—ΊοΈ Work from anywhere for up to 45 calendar days a year

πŸš€ Participation in the Employee Options pool giving you ownership in Runa

πŸš‘ Private Medical + Dental Health Insurance with Bupa

πŸ‘Ά Enhanced parental leave for all new parents, up to 16 weeks full pay

πŸ’· We are currently working towards salary transparency however we are not there just yet so our talent team will discuss this during the initial call to ensure that the right expectations are given.

The Interview Process

Call with Talent Lead ☎️

System Design Interview πŸ› οΈ

Coding Interview πŸ’»

Values Interview 🌟

Want to learn more about life at Runa and our hiring process? Visit our Candidate Hub: https://runahq.notion.site/runa-candidate-hub

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Diversity and Inclusion

We are committed to providing a hiring and working experience in which all people feel they are equally respected and valued regardless of race, religion, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status.

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Posted 14 Aug 2026 Β· ref 298904