Senior Backend Engineer (Java)

Nevis; Greater London; On-site; GBP 70,000 - 90,000; Full time

Benefits offered by this job

25 days’ annual leave

Private medical insurance

Competitive salary and benefits package including company equity

Job summary

A fast-growing startup in the UK is seeking a Software Engineer (Java Backend) to join their talented engineering team. You will design and build high-performance systems that power an innovative wealth management platform. The role requires 6+ years of backend experience, strong Java skills, and familiarity with microservices and cloud environments. Join a mission-driven company and enjoy a competitive salary, private medical insurance, and extensive annual leave.

Qualifications

• 6+ years’ experience in backend engineering.
• Strong fluency in Java with knowledge of backend design patterns.
• Hands-on experience with microservice architecture and APIs.
• Comfortable working in cloud environments like AWS.

Responsibilities

• Build and maintain scalable APIs and microservices.
• Design and evolve distributed systems.
• Ensure system reliability and performance.
• Collaborate with cross-functional teams.

Skills

Java

Microservice architecture

APIs

Database systems

Cloud environments (AWS)

Communication

Problem-solving

Education

Computer Science, Mathematics, or related fields

Tools

PostgreSQL

Redis

Job description

Join to apply for the Software Engineer (Java Backend) role at Nevis

About Nevis

Nevis is building the world’s first AI wealth management platform. In just 9 months, Nevis has grown to have over $50 billion of assets under management on its platform and is on track to have over $100 billion by the end of this year. Nevis is also backed by world leading investors and has raised a total of $40 million from Sequoia Capital, ICONIQ and Ribbit. Together it makes Nevis one of the highest funded and fastest growing Series A startups in Europe.

The Role

We are looking for an exceptional Software Engineer (Backend) to join our world‑class engineering team. In this role, you’ll design and build the high‑performance systems and services that power Nevis’ AI‑first wealth management platform. You’ll be responsible for creating the robust backend infrastructure behind our intelligent workflows – developing APIs, microservices, and data pipelines that handle billions in assets. Working alongside engineers from top fintech companies like Revolut, you’ll operate at the frontier of technology and finance, building scalable systems with a focus on reliability, performance, and elegant design. You’ll thrive here if you love working on greenfield systems, moving fast, and taking ownership end‑to‑end – from architecture to deployment.

What You’ll Do

• Build and maintain scalable APIs and microservices that underpin Nevis’ platform.
• Design and evolve distributed systems supporting core features like automation, integrations, and client operations.
• Develop clean, maintainable, and efficient code using Java 17/21 with an emphasis on TDD, DDD, and CI/CD.
• Own greenfield development while also improving and refactoring existing systems.
• Ensure system reliability and performance through monitoring and observability.
• Collaborate with cross‑functional teams including AI engineers, product managers, and designers to ship impactful features.
• Participate in code reviews, architecture discussions, and technical planning.

Who You Are

• 6+ years’ experience in backend engineering, building high‑performance, distributed systems.
• Strong fluency in Java, with deep understanding of backend design patterns and principles.
• Hands‐on experience with microservice architecture, APIs, and database systems (PostgreSQL, Redis).
• Solid foundation in computer science, mathematics, or related fields.
• Comfortable working in cloud environments (AWS).
• Fast learner with a results‑driven, problem‑solving mindset.
• Excellent communication and team collaboration skills.
• Fluent in English and comfortable in a fast‑paced, high‑growth environment.

Nice to Have

• Prior experience in financial services, fintech, or startups.
• Exposure to product‑focused engineering and building systems for scale.

Why Join Nevis?

• Work alongside a high‑calibre founding team backed by some of the best investors in the world.
• A fast‑paced, high‑growth environment with the opportunity to shape how the business operates.
• Be part of a mission‑driven company transforming the wealth management industry with huge potential for global impact.
• 25 days’ annual leave.
• Private medical insurance.
• Competitive salary and benefits package, including company equity.