Backend Kotlin Developer (Remote)

VitraCash; Greater London; Hybrid; GBP 70,000 - 90,000; Full time

Job summary

A leading cashless payment solutions firm in the UK is seeking a backend developer proficient in Kotlin. You will build a secure and performant backend while collaborating with teams to enhance user experience. The role offers significant growth opportunities in a supportive startup environment, along with competitive salary up to £90k. Benefits include remote working flexibility and global health insurance. A passion for technology and involvement in the open-source community are highly valued.

Benefits

Global Private Health Insurance

Flexible work times

Expense allowance

Healthy startup atmosphere

Zero turnover

Qualifications

• Significant experience with backend development using Kotlin or Java.
• Experience with Spring Boot is required.
• Kubernetes and Docker skills appreciated.

Responsibilities

• Build secure and performant backend solutions in Kotlin.
• Implement tests and monitoring for system health.
• Collaborate with teams to enhance user experience.
• Integrate and maintain third-party APIs.

Skills

Backend development

Kotlin

Java

Spring Boot

Cloud infrastructure

Kubernetes

Docker

Networking skills

English (professional proficiency)

German (plus)

Open source community involvement

Machine learning knowledge

Banking/payment industry knowledge

Job description

About VitraCash

We love the convenience of cashless payments, but using your credit cards while travelling proved to be quite a hassle. As every card has so many pros and cons, it has become nearly impossible to keep track of all the benefits and hidden fees.

VitraCard aims to offer an app alongside physical and digital debit cards to combine all cards a customer owns. For every transaction our AI-driven algorithm will automatically select the best card.

What you’ll be doing:

• Building a secure and performant backend solution on Kotlin
• Implement tests and monitoring to ensure system health and backup strategies
• Collaborating with the iOS and Android teams to establish objectives and design more functional, cohesive codes to enhance the user experience.
• Integrate and maintain third party APIs

What skills you’ll need:

• Significant experience with backend development and maintenance using Kotlin or Java
• Spring Boot
• Cloud infrastructure, Kubernetes, Docker experience and networking layer skills appreciated
• English full professional proficiency, other languages (e.g. German) are a plus
• Being an active member of the open source community is a plus
• Experience with machine learning is a plus
• Knowledge in (online/mobile) banking and the payment industry is a plus
• Following modern tech trends and interest in learning new things!

Benefits

• Independent, self-managed working with responsibility as part of a small team of top developers
• Enormous growth opportunities
• Zero Turnover in the company meaning we have happy people on board
• Healthy Startup atmosphere
• Newest tech stack (Kotlin with Spring Boot, KMM, SwiftUI, Kotlin)
• Domain Driven Design, Focus on Architecture und Strong DevOps culture
• Global Private Health Insurance
• Remote or Hybrid working
• Flexible work times
• Expense allowance each month
• Competitive salary up to 90k