kotlin developer in fintech

Enfint

Warszawa

On-site

PLN 180,000 - 260,000

Full time

14 days+
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Benefits offered by this job

Profit sharing
Sponsorship program
Integration events
Medical care
Training centre
Open management
Modern offices
Brand partnerships
MySii app

Job summary

Sii Poland разрабатывает современную финтех-платформу для управления расходами компаний. Продукт интегрирует карты оплаты, управление расходами и обработку счетов с банковскими и HR-решениями, помогая автоматизировать финансовые процессы и контролировать траты в реальном времени.

Вакансия: старший backend-инженер на Kotlin в Варшаве, работа в масштабируемой архитектуре. Ключевые задачи: проектирование и поддержка микросервисов на Kotlin, работа с AWS и Kubernetes, анализ производительности и

Qualifications

  • 5+ лет опыта разработки ПО
  • Kotlin — опыт серверной разработки
  • Опыт с распределёнными системами и облаками (AWS, Kubernetes)
  • Уверенное владение английским на уровне B2
  • Проживание в Польше

Responsibilities

  • Вести дизайн, сборку и поддержку масштабируемых микросервисов на Kotlin
  • Сотрудничать с кросс-функциональными командами по платформе, сервисам и доменам
  • Анализировать производительность систем и внедрять улучшения для надежности и масштабируемости
  • Участвовать в ревью кода и пост-мортем-аналитике
  • Менторить и развивать коллег
  • Улучшать архитектуру и качество решений
  • Руководить командой через технические вызовы и миграции

Skills

Kotlin
Microservices
Team leadership
English B2

Tools

Kubernetes
AWS
PostgreSQL
JUnit
Testcontainers
Grafana

Job description

Описание

Sii Poland develops a modern fintech platform for company expense management. The product integrates payment cards, expense management, and invoice handling with partner systems such as banks, accounting platforms, and HR solutions, helping companies automate financial processes and control spending in real time.

Задачи
  • Lead initiatives to design, build, and maintain scalable microservices primarily using Kotlin
  • Collaborate with cross-functional teams to develop solutions across Platform, Services, SMB, and other domains
  • Analyze system performance and implement optimizations to ensure high reliability and scalability
  • Participate in code reviews and post-mortems
  • Mentor and upskill other engineers
  • Improve the architecture and quality of solutions
  • Lead the team through technical challenges and migrations
Требования
  • Have a minimum of 5 years of professional software development experience
  • Demonstrate expertise in server-side languages, especially Kotlin
  • Have experience with distributed systems, microservices, and cloud environments such as AWS and Kubernetes
  • Be proficient with relational databases such as PostgreSQL, testing frameworks such as JUnit and Testcontainers, and observability tools such as Grafana
  • Have strong problem-solving skills and a collaborative mindset
  • Have very good English proficiency at a minimum B2 level
  • Reside in Poland
  • Nice to have: previous work in the fintech industry or with financial products, knowledge of payments, cards, or accounting, experience in a scale-up environment, proficiency in React or TypeScript
Условия
  • Profit sharing
  • Passion Sponsorship program
  • Regular integration events and trips
  • Medical care
  • Internal training centre
  • Access to experts and an open management team
  • Comfortable and well-equipped offices
  • Contracts with the biggest brands
  • MySii app
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