Senior Product Engineer (£91k-£101k + Equity) at Yonder

Jack and Jill AI; Greater London; On-site; GBP 91,000 - 102,000; Full time

Job summary

A dynamic fintech startup in London seeks a Senior Product Engineer to drive backend development and enhance user experiences. You will develop scalable microservices in Scala, manage distributed systems on cloud infrastructure, and influence the engineering culture in a fast-growing environment. The ideal candidate has expertise in Scala and Kafka, and a deep understanding of cloud systems like GCP. This role offers the opportunity to impact a product customers love and contribute to an innovative team culture.

Qualifications

• Expert-level proficiency in Scala with understanding of functional programming patterns.
• Experience in building and operating distributed microservices within cloud environments.
• A product-first mindset focusing on customer problems.

Responsibilities

• Build and scale production-grade microservices using Scala and Kafka.
• Design resilient, event-driven architectures and RESTful APIs.
• Manage containerized workloads ensuring high availability.

Skills

Scala

Kafka

Docker

Kubernetes

Event-driven architecture

Job description

Senior Product Engineer (Backend)

Salary: £91,211 - £101,381 + Equity

Company Description: Yonder - VC-backed fintech building the future of financial memberships

Job Description: Join Yonder to redefine consumer finance by building a seamless membership experience that combines credit, rewards, and lifestyle. As a Senior Product Engineer, you will own the end-to-end development of backend services in Scala, managing everything from core banking systems to global flight rewards, while shaping the engineering culture of a fast-growing startup.

Location: London, UK

Why this role is remarkable:

• Impact a rapidly scaling product that customers actually love, evidenced by a 4.5 TrustPilot rating and unique features like Yonder Flights.
• Work within a high-ownership engineering culture where you manage the full lifecycle, from distributed system architecture to cloud infrastructure on GCP.
• Join a well-capitalized mission following a £23.4M funding round in September 2024 to fuel international expansion and product innovation.

What you will do:

• Build and scale production-grade microservices using Scala and Kafka to power real-time payments and rewards.
• Design resilient, event-driven architectures and RESTful APIs that integrate with internal systems and external lifestyle partners.
• Manage and optimize containerized workloads using Docker and Kubernetes, ensuring high availability and performance across the stack.

The ideal candidate:

• Expert-level proficiency in Scala with a deep understanding of functional programming patterns and event-driven architectures like Kafka.
• Extensive experience building and operating distributed microservices within cloud environments, specifically GCP and Kubernetes.
• A product-first mindset that prioritizes solving customer problems and delivering business value over technical perfection in isolated silos.