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Kody

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Backend Kotlin Developer (Senior)

At Kody, we’re redefining how businesses take payments and access financial services. As a fast-growing Fintech, we partner with some of the most recognised names in hospitality, F&B and retail across Hong Kong helping them modernise payments, settlement and digital financial experiences.

Our Hong Kong tech team runs like a startup within a scaling company i.e. agile, innovative and deeply product-driven. We’re now looking for a Senior Backend Engineer to help us build the next generation of payment and settlement infrastructure.

Why Join us?

  • Work with industry-leading brands in Hong Kong and across the region
  • Join a fast-moving, innovative tech culture with the stability of a growing international company
  • Build with modern tools and stacks: Kotlin, Kafka, Kubernetes, Redis, PostgreSQL, and cloud-native frameworks
  • Enjoy flexibility while working with a passionate, highly skilled engineering team
  • Access learning and development and the opportunity to travel for collaboration with our global tech teams

Your Role

As a Senior Backend Engineer, you’ll be at the heart of our platform designing and scaling systems that power Kody’s products, from payment gateways and settlement systems to mobile POS integrations and financial service APIs.

Responsibilities

  • Design, build, and maintain backend services and APIs (REST/gRPC)
  • Contribute to backend architecture and ensure system reliability and scalability
  • Debug, troubleshoot, and optimise performance in production systems
  • Collaborate with product, QA, and frontend teams to deliver robust, maintainable solutions
  • Write clean, efficient, and well-tested code
  • Stay current with modern backend and cloud technologies

Requirements

  • 5+ years of experience in backend software development (Kotlin or Java)
  • Strong understanding of microservices, cloud deployment (AWS/GCP), and CI/CD pipelines (GitHub Actions)
  • Proficiency in SQL/NoSQL databases (PostgreSQL, MySQL, Redis)
  • Familiar with Docker, Kubernetes, and event-driven systems (Kafka)
  • Solid understanding of APIs (REST, gRPC) and version control (GitHub)
  • Familiarity with agile development processes
  • Fluent in English (Mandarin or Cantonese a plus)
  • Fintech, payment, or settlement background is a plus

Benefits

  • Competitive compensation and meaningful work impact
  • Equity available
  • Flexibility and a global, tech-driven culture
  • Career growth opportunities within a fast-scaling fintech
  • Work with ambitious teammates who think big and execute fast
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What this application asks

workable

First name, Last name, Email, Phone, Address, Education, Experience, Resume, Cover letter

  • Have you worked in a backend project with Kotlin? yes / no
  • Consider the following Kotlin code: ``` fun < T> List< T>.customFunction(predicate: (T) -> Boolean): List< T> = this.filter(predicate).takeIf { it.isNotEmpty() } ?: listOf() ``` Given a list val numbers = listOf(1, 2, 3, 4, 5), which of the following statements will return a list containing only even numbers? choose one
  • Familiarity with SQL databases such as Postgres (ideally) or MySQL yes / no
  • Which of the following best describes a pragmatic approach to unit testing? choose one
  • Good understanding of APIs: REST or gRPC (this one ideally since we moved all of our services to gRPC) yes / no
  • Strong familiarity with Git version control (we use GitHub) yes / no
  • Experience with cloud computing and deployment with CI/CD (we use GitHub Actions) yes / no
  • Experience working with unit testing frameworks yes / no
  • Knowledge of agile development practices and methodologies yes / no
  • Are you currently based in Hong Kong or planning to move soon? yes / no
  • How many years of backend experience do you have? choose any
  • What is your salary expectation for this role? (monthly) choose any

See also

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