Staff Software Engineer (Java/Kotlin)

Staff Software Engineer | Fintech Accelerator | London | Scale-up Impact

The Opportunity

Born from the successful launch of a major digital bank, we are a high-growth venture team with a fresh mission. We are building products that solve real-world financial problems by putting the customer at the center of every decision.

As a Staff Software Engineer, you will be the technical heartbeat of our Accelerator business. This is a rare chance to operate with the agility of a fintech while leveraging the stability and reach of a global financial leader.

You will thrive in a squad-based environment where curiosity is celebrated and ideas are rapidly transformed into products. Your impact will be felt directly by our customers as you help shape the future of digital finance.

What You’ll Be Doing

• Use domain modeling to build best-in-class, scalable business products.
• Structure software for maximum readability, testability, and evolution.
• Architect resilient solutions that eliminate single points of failure.
• Develop secure, high-performance code to protect customers and data.
• Lead prompt investigations into system issues to ensure long-term stability.
• Oversee seamless, zero-downtime releases for a global user base.
• Optimize data architecture for high-efficiency reading and writing.
• Evolve our tech stack by integrating modern technologies and patterns.

What They’re Looking For

Essential

• Proficiency in JVM-based languages, specifically Java or Kotlin.
• Deep experience with cloud-native architecture and multi-cloud environments.
• A pragmatic, iterative approach to solving complex technical challenges.
• Strong architectural thinking with a focus on long-term scalability over short-term fixes.
• Ability to adapt quickly to changing priorities and navigate "uncharted waters."
• A team-first mindset with a passion for mentoring and knowledge sharing.
• High ethical standards and a commitment to building trust-based software.

Nice to Have

• Previous experience in a fintech or high-growth startup environment.
• Contributions to open-source projects or a background in building custom tooling.
• Familiarity with cross-functional "tribe and squad" working models.

Why Join?

We are a people-first organization that values collaboration over "hero" culture. You will have the autonomy to move between different product squads based on your interests and strengths, ensuring your work stays challenging and fresh.

• Scale a new venture from the ground up with significant backing.
• Work in a multi-cloud environment using the best tool for the job.
• Continuous learning opportunities and a clear path for technical leadership.
• A culture that champions diversity of thought and professional growth.